In particular embodiments, to generate two videos corresponding to the two views of a human from the single video, multiple neural networks may be used to process a 2D video of a human in motion. Initially, a video of a person may be captured by a standard video camera. The video may comprise a plurality of frames including RGB images of the person. A computing system may process these images to generate the two videos corresponding to the two views of a human. As an example and not by way of limitation, an artificial reality headset may process these images to generate a mapping between the RGB pixels of each of the images to a 3D surface-based model of body part of the person. In order to generate the mapping, the artificial reality headset may use a mapping machine-learning model to process one of the RGB images to generate the mapping between pixels of the single RGB image to the 3D surface-based model of body part of the person.A machine-learning model may be used to refine the 3D surface-based model into a refined 3D surface- based model. The refined 3D surface-based model is then used to warp the single RGB image that was used to generate the 3D surface- based model to generate a texture of the person. The texture may then be used as an input to a full texture machine-learning model that generates a full-body UV texture from the partial texture generated by the warped RGB images. The full texture machine-learning model may be used to inpaint regions that are not seen or are self-occluded areas. As an example and not by way of limitation, if the partial texture generated by the warped RGB images have a partial texture of a person's hands, then the full texture machine-learning model may inpaint the region corresponding to the person's hands to generate a complete texture of the person's hands. After generating the full texture using the full texture machine-learning model, the artificial reality headset may then use a view generation machine- learning model to generate two different views of the person using the refined 3D surface-based model. That is, the view generation machine-learning model may generate a left eye refined 3D surface- based model and a right eye refined 3D surface-based model. The complete texture generated from the full texture machine-learning model may then be warped onto the left eye refined 3D surface-based model and the right eye refined 3D surface-based model. A neural Tenderer machine-learning model may then be applied to the warped left and right images to fill in missing pixel information to generate the stereo pair of images of the person. This method of generating a stereo pair of images and/or an image at a virtual viewpoint may be done without an explicit 3D reconstruction of the person.
H04N 13/268 - Générateurs de signaux d’images avec conversion d’images monoscopiques en images stéréoscopiques au moyen du rendu basé sur une image de profondeur
H04N 13/261 - Générateurs de signaux d’images avec conversion d’images monoscopiques en images stéréoscopiques
In one embodiment, a method includes, by a computing device, accessing current motion measurements associated with a current time instant, where the current motion measurements (104) are generated using a motion sensor (102), generating current gravity- aligned motion measurements based on the received current motion measurements (104), accessing a set of previous gravity-aligned motion measurements (112) associated with a time period prior to the current time instant, generating a probabilistic distribution (118) of the one or more displacements or the one or more speeds by using a statistical motion model (114) to process the current gravity- aligned motion measurements and the set of previous gravity-aligned motion measurements (112), and estimating, using a nonlinear state estimator (108), a state (120) of the motion sensor (102) based on the current motion measurements (104) and the probabilistic distribution (118) of the one or more displacements or the one or more speeds, the state including a three-dimensional position of the motion sensor (102) at the current time instant.
G01C 21/16 - Navigation; Instruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigant; Navigation à l'estime en intégrant l'accélération ou la vitesse, c. à d. navigation par inertie
3.
ONLINE CALIBRATION BASED ON DEFORMABLE BODY MECHANICS
The disclosed computer-implemented method for online calibration based on deformable body mechanics may include (i) detecting, via at least one sensor, deformation of a wearable frame that houses at least one component of a display system, (ii) determining how the deformation changes a position of the component of the display system, and (iii) compensating for the changed position of the component of the display system when processing an image to be displayed to a user of the wearable frame. In one embodiment, the sensor includes a simultaneous location and mapping ("SLAM") sensor gathering SLAM data and the detection of the deformation of the wearable frame is based at least in part on the SLAM data. Various other methods, systems, and computer-readable media are also disclosed.
G06F 3/03 - Dispositions pour convertir sous forme codée la position ou le déplacement d'un élément
G06F 3/0346 - Dispositifs de pointage déplacés ou positionnés par l'utilisateur; Leurs accessoires avec détection de l’orientation ou du mouvement libre du dispositif dans un espace en trois dimensions [3D], p.ex. souris 3D, dispositifs de pointage à six degrés de liberté [6-DOF] utilisant des capteurs gyroscopiques, accéléromètres ou d’inclinaiso
4.
MICRO OLED DISPLAY DEVICE WITH SAMPLE AND HOLD CIRCUITS TO REDUCE BONDING PADS
Embodiments relate to a display device including bonding pads on a display element where data signals for a plurality of columns of pixels are provided to a same bonding pad in a time-divisional manner. Each of the bonding pads is connected to a plurality of demultiplexer circuits for sampling data signals at the bonding pad, storing the data signals, and transferring the sample data signals to corresponding columns of pixels. Each column of pixels includes a plurality of columns of subpixels, and a period during which a demultiplexer circuit samples the bonding pad for a column of subpixels of a first color may at least partially overlap with a period during which the demultiplexer circuit transfers previously sampled data signals to a column of subpixels of a second color.
G09G 3/3208 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED] organiques, p.ex. utilisant des diodes électroluminescentes organiques [OLED]
5.
FACILITATING WIRELESS COMMUNICATION FOR WEARABLE DEVICE
Disclosed herein are aspects related to a device that can facilitate wireless communication despite a contact of a user with the device. In one aspect, the device includes a wireless interface, a sensor, and a processor. In one aspect, the wireless interface is configure to communicate data with another device through a wireless communication link. In one aspect, the sensor is configured to detect whether the device is attached to a cradle. In one aspect, the processor is configured to determine whether the contact of the user with the device interferes with the wireless communication link, in response to determining that the device is detached from the cradle and/or determining at least one receive signal metric of the wireless interface. In one aspect, the processor is configured to initiate a process to facilitate communication of the data, in response to determining that the contact of the user with the device interferes with the wireless communication link.
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
H04M 1/72412 - Interfaces utilisateur spécialement adaptées aux téléphones sans fil ou mobiles avec des moyens de soutien local des applications accroissant la fonctionnalité par interfaçage avec des accessoires externes utilisant des interfaces sans fil bidirectionnelles à courte portée
In one embodiment, a method includes accessing a first image corresponding to a first frame of a video stream, where the first image has complete pixel information, rendering a provisional image corresponding to a second frame of the video stream subsequent to the first frame, where the provisional image has a first area with complete pixel information and a second area with incomplete pixel information, generating a predicted image corresponding to the second frame by re-projecting at least an area of the first image according to one or more warping parameters, and generating a second image corresponding to the second frame by compositing the rendered provisional image and the predicted image.
H04N 13/344 - Affichage pour le visionnement à l’aide de lunettes spéciales ou de visiocasques avec des visiocasques portant des affichages gauche et droit
In one embodiment, a method includes receiving a source image and its associated parameters from each of multiple image sources, associating each of the source images with a layer in a range of layers based on the parameters associated with the source images, the range of layers specifying a composition layering order of the source images, generating a corresponding customized distortion mesh for each particular source image in the source images based on the parameters associated with the particular source image and at least a portion of the parameters associated with each of the source images that is associated with any layer preceding a layer associated with the particular source image, modifying each of the source images using the corresponding customized distortion mesh, generating a composite image using the modified source images, and displaying the composite image as a frame in a video.
A micro-light emitting diode (micro-LED) includes a mesa structure that includes an n-type semiconductor layer, a p-type semiconductor layer, and an active region between the n-type semiconductor layer and the p-type semiconductor layer. The active region includes at least one quantum well layer. The at least one quantum well layer has a first effective bandgap and a first stress in a center region of the at least one quantum well layer, and a second effective bandgap and a second stress in a mesa sidewall region of the at least one quantum well layer. The second stress is lower than the first stress or is opposite to the first stress. The second effective bandgap is greater than the first effective bandgap to form a lateral carrier barrier in the at least one quantum well layer.
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
H01L 33/06 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les corps semi-conducteurs ayant une structure à effet quantique ou un superréseau, p.ex. jonction tunnel au sein de la région électroluminescente, p.ex. structure de confinement quantique ou barrière tunnel
H01L 33/18 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les corps semi-conducteurs ayant une structure cristalline ou une orientation particulière, p.ex. polycristalline, amorphe ou poreuse au sein de la région électroluminescente
H01L 33/30 - Matériaux de la région électroluminescente contenant uniquement des éléments du groupe III et du groupe V de la classification périodique
A method of forming a pixel-aligned volumetric avatar includes receiving multiple two-dimensional images having at least two or more fields of view of a subject. The method also includes extracting multiple image features from the two-dimensional images using a set of learnable weights, projecting the image features along a direction between a three-dimensional model of the subject and a selected observation point for a viewer, and providing, to the viewer, an image of the three-dimensional model of the subject. A system and a non-transitory, computer readable medium storing instructions to perform the above method, are also provided.
A power supply unit adapts based on an image to be displayed by a display panel. The power supply unit includes a controller circuit for generating a control signal, and a converter circuit for generating an output supply voltage based on the control signal. The controller circuit includes a first look-up table (LUT) storing a set of lower limit values, and a second LUT storing a set of upper limit values. Moreover, the controller circuit includes a microcontroller for receiving an on-pixel-ratio (OPR) value and identifying an entry in the first LUT and the second LUT from the received OPR value. The controller circuit further includes an output circuit for generating the control signal between a first voltage corresponding to a lower limit stored in the identified entry in the first LUT and a second voltage corresponding to an upper limit stored in the identified entry in the second LUT.
G09G 3/3225 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED] organiques, p.ex. utilisant des diodes électroluminescentes organiques [OLED] utilisant une matrice active
11.
SIMULATED CONTROL FOR 3-DIMENSIONAL HUMAN POSES IN VIRTUAL REALITY ENVIRONMENTS
A method for simulating a solid body animation of a subject includes retrieving a first frame that includes a body image of a subject. The method also includes selecting, from the first frame, multiple key points within the body image of the subject that define a hull of a body part and multiple joint points that define a joint between two body parts, identifying a geometry, a speed, and a mass of the body part to include in a dynamic model of the subject, based on the key points and the joint points, determining, based on the dynamic model of the subject, a pose of the subject in a second frame after the first frame in a video stream, and providing the video stream to an immersive reality application running on a client device.
The invention is directed towards employing semiconductor-based waveguides as secondary optical components that reduce the beam divergence of light generated by LEDs. A lighting source includes a first semiconductor die and a second semiconductor die. The first semiconductor die includes an LED. The second semiconductor die is bonded to the first semiconductor device and includes a crystalline waveguide having a first waveguide surface, a second waveguide surface, and a waveguide body. The first waveguide surface receives light from the LED. The waveguide body is comprised of a crystalline material that transmits the received light from the first waveguide surface to the second waveguide surface. The second waveguide surface emits the received portion of the light with a second beam divergence that is significantly less than the first beam divergence.
H01L 33/58 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique
H01L 27/15 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants semi-conducteurs avec au moins une barrière de potentiel ou une barrière de surface, spécialement adaptés pour l'émission de lumière
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
A display device dynamically determines pixel settle times to reduce a display latency. The display device includes a backlight unit (BLU) for providing light for displaying an image, a plurality of pixels for modulating the light provided by the BLU, and a controller circuit for controlling the BLU and the plurality of pixels. The controller circuit determines a settle time from display data for a current display frame and display data for a previous display frame, and turns on the BLU based on the determined settle time. The determined settle time corresponding to an expected amount of time for the plurality of pixel to transition from a first state corresponding to the display data for the previous display frame to a second state corresponding to the display data for the current display frame.
G09G 3/36 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante utilisant des cristaux liquides
Embodiments described herein disclose methods and systems directed to locomotion in virtual reality (VR) based on hand gestures of a user. In some implementations, the user can navigate between locations using hand gestures that trigger teleportation. In other implementations, the user can separately control forward/backward movement and the direction orientation the user is facing. The separate control can either be with one hand when making different gestures or by using different hands to control movement and orientation. In some implementations, a dragging gesture by the user is interpreted by the VR system to trigger movement. In this way, the user can turn in place without moving forward, move forward without turning, or can move forward and turn, while controlling speed, all with a single gesture.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/04815 - Interaction s’effectuant dans un environnement basé sur des métaphores ou des objets avec un affichage tridimensionnel, p.ex. modification du point de vue de l’utilisateur par rapport à l’environnement ou l’objet
15.
CARRIER CONFINEMENT IN LEDS BY VALENCE BAND ENGINEERING
A micro-light emitting diode (micro-LED) includes a substrate, an n-type semiconductor layer on the substrate, a p-type semiconductor layer, and an active region between the n-type semiconductor layer and the p-type semiconductor layer and configured to emit red light. The active region includes a barrier layer characterized by a first lattice constant, and a quantum well layer next to the barrier layer. The quantum well layer is characterized by a second lattice constant greater than the first lattice constant and by an in-plane compressive strain. The active region has a lateral linear dimension equal to or less than about 10 μm.
H01L 33/06 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les corps semi-conducteurs ayant une structure à effet quantique ou un superréseau, p.ex. jonction tunnel au sein de la région électroluminescente, p.ex. structure de confinement quantique ou barrière tunnel
H01L 33/18 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les corps semi-conducteurs ayant une structure cristalline ou une orientation particulière, p.ex. polycristalline, amorphe ou poreuse au sein de la région électroluminescente
H01L 33/30 - Matériaux de la région électroluminescente contenant uniquement des éléments du groupe III et du groupe V de la classification périodique
H01L 25/075 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans le même sous-groupe des groupes , ou dans une seule sous-classe de , , p.ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
A device includes a stack of a lens assembly and a steering assembly. The stack is configured to receive a beam from a first side and output the beam from a second side. The lens assembly is configured to provide an adjustable optical power to the beam. The steering assembly is configured to provide an adjustable steering angle to the beam. The device also includes a reflector configured to receive the beam output from the second side of the stack, and reflect the beam back to the second side of the stack. The beam reflected back from the reflector is incident onto the second side of the stack, and output from the first side of the stack.
G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c. à d. déflexion
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
An optical element includes a first layer (220), a second layer (240), and a fluid (230). A first surface (211) of the first layer is configured to change hydrophobicity in response to incoming activation light. Absorbing molecules in the fluid are repelled or attracted to the first surface in response to the hydrophobicity of the first surface.
Systems and methods for providing partial passthrough video to a user of a virtual reality device are disclosed herein. Providing the partial passthrough video can include detecting a hand passthrough trigger event and identifying a hand passthrough video feed. Providing partial passthrough video can further include aligning the hand passthrough video feed with a virtual environment presented to a user by the virtual environment and, based on the aligning of the hand passthrough video feed with the virtual environment, overlaying the hand passthrough video feed on the virtual environment.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/03 - Dispositions pour convertir sous forme codée la position ou le déplacement d'un élément
G06F 3/04815 - Interaction s’effectuant dans un environnement basé sur des métaphores ou des objets avec un affichage tridimensionnel, p.ex. modification du point de vue de l’utilisateur par rapport à l’environnement ou l’objet
19.
DEVICES, SYSTEMS, AND METHODS FOR MODIFYING FEATURES OF APPLICATIONS BASED ON PREDICTED INTENTIONS OF USERS
A disclosed system includes a wearable dimensioned to be donned on a body of a user of a computing device, a set of sensors coupled to the wearable, wherein the set of sensors detect one or more neuromuscular signals via the body of the user, and at least one processing device communicatively coupled to the set of sensors, wherein the processing device determines, based at least in part on the neuromuscular signals detected by the set of sensors, an intention of the user in connection with an application running on the computing device and, in response to determining the intention of the user, modifying a feature of the application running on the computing device to account for the intention of the user. Various other devices, systems, and methods are also disclosed..
Disclosed herein are related to a device controlling a wireless communication link based on an average amount of radiation exposure and quality of service (QoS). In one aspect, the device includes a processor configured to determine the QoS indicating a target performance of a communication link of a communication interface. In one aspect, the processor is configured to determine radio resource information of the communication link. In one aspect, the processor is configured to predict an amount of radiation exposure for a time period according to the QoS, the radio resource information, and the detected proximity of the user. In one aspect, the processor is configured to compare the predicted amount of radiation exposure for the time period against a time averaged threshold amount of radiation exposure. In one aspect, the processor is configured to allocate radio resources to the communication interface, according to the comparison.
H04W 52/36 - Commande de puissance d'émission [TPC Transmission power control] utilisant les limitations de la quantité totale de puissance d'émission disponible avec une plage ou un ensemble discrets de valeurs, p.ex. incrément, variation graduelle ou décalages
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
An audio system including an optical microphone and an audio controller. The optical microphone includes a light source and a detector. In some embodiments, the light source illuminates skin of a user. Alternatively the optical microphone also includes a membrane, and the light source illuminates a portion of the membrane. Sounds from a local area cause vibrations in the skin (or vibrations in the membrane). The detector may be in an interferometric configuration or a non- interferometric configuration with the light source. The audio controller monitors the vibrations of the skin (or membrane) using signal output from the detector, and measures the sounds using the monitored vibrations.
In an embodiment, a method involves receiving a pixel array, compressing the pixel array by, for each pixel block of multiple pixel blocks: accessing pixel values associated with pixels in the pixel block, determining a range of the pixel values and an endpoint pixel value in the range, determining quantization levels corresponding to different values within the range of the pixel values, selecting a quantization level from the quantization levels for each of the pixel values in the pixel block, and encoding the pixel values in the pixel block using their respective selected quantization levels and the endpoint pixel value.
H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc
H04N 19/98 - Codage de plage-dynamique adaptative [ADRC]
A light source based on an optical frequency mixer is disclosed. The light source has a first laser for emitting light at a first optical frequency, and a plurality of second lasers for emitting light at different second optical frequencies. The optical frequency mixer provides output light beams at mixed optical frequencies of the first and second lasers. Wavelength of output light beams may be tuned by tuning wavelength of any of the fist or second lasers. In this manner, RGB wavelength-tunable light sources may be constructed based on red or near-infrared lasers. The wavelength tunability of the output light beams may be used to angularly scan or refocus the light beams.
Disclosed herein are related to a wireless communication. In one aspect, a wireless communication device receives a frame including a first indication that indicates the wireless communication device to disable transmission during a quiet period. The quiet period may overlap with a restricted service period of a restricted target wake time (TWT) schedule of the wireless communication device. In one aspect, the wireless communication device may determine to ignore the first indication for the quiet period based on a defined rule or a separate indication indicating the wireless communication device to ignore the first indication.
Disclosed is a polymeric waveguide for propagating light therein along width and length dimensions of the polymeric waveguide. The polymeric waveguide has a first curved surface on one side thereof and a second curved surface on an opposite second side thereof, and a refractive index spatially varying through a thickness thereof between the first curved surface and the second curved surface. The polymeric waveguide is curved in a cross-section comprising at least one of the width and length dimensions.
A display device improves the grounding connection of a polarizer (250B) by using a metal bridge (340) that couples the polarizer to a ground (320) of the display device. The display device includes a backlight unit (BLU) for providing light for displaying an image, a plurality of pixels for modulating the light provided by the BLU, a polarizer (250B) for filtering the light provided by the BLU, and the metal bridge (340). The metal bridge (340) is disposed in a non-display area surrounding a display area (310) of the display device.
G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p.ex. des polariseurs ou des réflecteurs
G02B 1/16 - Revêtements optiques obtenus par application sur les éléments optiques ou par traitement de la surface de ceux-ci ayant un effet antistatique, p.ex. revêtements conducteurs électriques
In one embodiment, a method includes the steps of capturing an image from a camera viewpoint, the image depicting a physical keyboard, detecting one or more shape features of the physical keyboard depicted in the image by comparing pixels of the image to a predetermined shape template, the predetermined shape template representing visual characteristics of spaces between keyboard keys, accessing predetermined shape features of a keyboard model associated with the physical keyboard, and determining a pose of the physical keyboard based on comparisons between (1) the detected one or more shape features of the physical keyboard and (2) projections of the predetermined shape features of the keyboard model toward the camera viewpoint.
G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p.ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersections; Analyse de connectivité, p.ex. de composantes connectées
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
A display panel (102) has an array of pixels (103) backlighted by a backlight (104) including a lightguide (106) and a plurality of out- coupling gratings (112). The locations of the out-coupling gratings (112) are coordinated with positions of pixels in the array of pixels (103). The backlight (104) may include a light-conducting transparent slab (106) or an array of linear waveguides (207) running parallel to the rows of the pixel array (103), with the gratings (112) formed in the slab (106) or in the waveguide (207). Wavelength composition and polarization of the light emitted by the waveguide may be matched to the transmission spectral bands and transmission polarization of the display panel (102).
G02B 30/33 - Systèmes ou appareils optiques pour produire des effets tridimensionnels [3D], p.ex. des effets stéréoscopiques en fournissant des première et seconde images de parallaxe à chacun des yeux gauche et droit d’un observateur du type autostéréoscopique comprenant des sources de lumière directionnelle ou des sources de rétroéclairage
F21V 8/00 - Utilisation de guides de lumière, p.ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
A display device with a transparent illuminator and an liquid crystal (LC) display panel is disclosed. The transparent illuminator includes a light source and a transparent lightguide, which may be based on a slab of transparent material with zigzag light propagation of the illuminating light in the slab and/or a transparent photonic integrated circuit with singlemode ridge waveguides for spreading the illuminating light in a plane parallel to the plane of LC display panel. The lightguide includes a plurality of grating out-couplers whose position is coordinated with positions of LC pixels for higher throughput. A reflective offset-to-angle optical element may be provided to form an image in angular domain through the LC panel and through the transparent illuminator, resulting in an overall compact and efficient display configuration.
A light source includes an epitaxial layer stack that includes an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer. The epitaxial layer stack includes a two-dimensional (2-D) array of mesa structures formed therein. The light source further includes an array of p-contacts electrically coupled to the p-type semiconductor layer of the 2-D array of mesa structures, a metal layer in regions surrounding individual mesa structures of the 2-D array of mesa structures, and a plurality of n-contacts coupling the metal layer to the n-type semiconductor layer at a plurality of locations between the individual mesa structures of the 2-D array of mesa structures.
H01L 27/15 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants semi-conducteurs avec au moins une barrière de potentiel ou une barrière de surface, spécialement adaptés pour l'émission de lumière
H01L 33/38 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les électrodes ayant une forme particulière
H01L 33/62 - Dispositions pour conduire le courant électrique vers le corps semi-conducteur ou depuis celui-ci, p.ex. grille de connexion, fil de connexion ou billes de soudure
H01L 33/60 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique Éléments réfléchissants
H01L 33/58 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique
31.
METHODS FOR DEPTH SENSING USING CANDIDATE IMAGES SELECTED BASED ON AN EPIPOLAR LINE
A method for depth sensing from an image of a projected pattern is performed at an electronic device with one or more processors and memory. The method includes receiving an image of a projection of an illumination pattern; for a portion of the image, selecting a candidate image of a plurality of candidate images by comparing the portion of the image with a plurality of candidate images; and determining a depth for the portion of the image based on depth information associated with the selected candidate image. Related electronic devices and computer readable storage medium are also disclosed.
The disclosed computer-implemented method may include (1) obtaining, within a local environment in which a user is in physical contact with an electronic device, a current value for each of a plurality of measurable characteristics associated with at least one of the user or the local environment, (2) determining, based on the current value for each of the plurality of measurable characteristics, a temperature threshold for the electronic device, (3) measuring a current temperature of the electronic device, (4) comparing the current temperature to the temperature threshold, and (5) initiating, in response to the current temperature exceeding the temperature threshold, a heat mitigation operation of the electronic device to lower the current temperature. Various other methods, electronic devices, and computer-readable media are also disclosed.
H04M 1/72403 - Interfaces utilisateur spécialement adaptées aux téléphones sans fil ou mobiles avec des moyens de soutien local des applications accroissant la fonctionnalité
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
G06F 1/3206 - Surveillance d’événements, de dispositifs ou de paramètres initiant un changement de mode d’alimentation
An audio assembly provides audio content to a user. The audio assembly comprises an elongated body, a diaphragm, a transducer, and a plurality of vent assemblies. The elongated body has a first end and a second end opposite the first end. The diaphragm is within the elongated body and pivots about a pivot location that is proximate the second end. The transducer is within the elongated body and is positioned proximate to the first end. The transducer causes the diaphragm to pivot about the pivot location such that the diaphragm generates a positive acoustic pressure wave from a first surface of the diaphragm and a negative acoustic pressure wave from a second surface of the diaphragm. The plurality of vent assemblies are along one or more surfaces of the elongated body, and are configured to vent the positive acoustic pressure wave and the negative acoustic pressure wave.
H04R 5/033 - Casques pour communication stéréophonique
H04R 7/18 - Dispositions pour monter ou pour tendre des membranes ou des cônes à la périphérie
H04R 1/34 - Dispositions pour obtenir la fréquence désirée ou les caractéristiques directionnelles pour obtenir la caractéristique directionnelle désirée uniquement en utilisant un seul transducteur avec des moyens réfléchissant, diffractant, dirigeant ou guidant des sons
34.
SYSTEMS AND METHODS OF CONFIGURING A SPECTRAL MASK
Systems and methods for configuring a spectral mask include a transmitting device which maintains a plurality of spectral masks for signal transmissions. The transmitting device determines a channel to transmit a signal. The transmitting device selects a first spectral mask from the plurality of spectral masks according to the determined channel to transmit the signal. The transmitting device transmits the signal in the determined channel to a receiving device according to the first spectral mask.
H04W 52/24 - Commande de puissance d'émission [TPC Transmission power control] le TPC étant effectué selon des paramètres spécifiques utilisant le rapport signal sur parasite [SIR Signal to Interference Ratio] ou d'autres paramètres de trajet sans fil
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 52/14 - Analyse séparée de la liaison montante ou de la liaison descendante
35.
SYSTEMS AND METHODS OF DYNAMIC SELECTION OF ANTENNAS FOR POWER OPTIMIZATION
Disclosed herein are systems, devices and methods related to a wireless communication. In one aspect, a device determines a first metric according to a first data rate and a first power consumption of communication through a first antenna of the device. In one aspect, the device determines a second metric according to a second data rate and a second power consumption of communication through the first antenna and a second antenna of the device. In one aspect, the device selects one or more of the first antenna and the second antenna for communication with another device, according to the first metric and the second metric. In one aspect, the device communicates through the one or more of the first antenna and the second antenna.
H04B 7/06 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04B 7/08 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station de réception
36.
SUBSTITUTED PROPANE-CORE MONOMERS AND POLYMERS THEREOF FOR VOLUME BRAGG GRATINGS
The disclosure provides recording materials including propane derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures are disclosed for propane derivatized monomers and polymers for use in Bragg gratings applications, leading to materials with higher refractive index, low birefringence, and high transparency. The disclosed propane derivatized monomers and polymers thereof can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.
C07C 233/65 - Amides d'acides carboxyliques ayant des atomes de carbone de groupes carboxamide liés à des atomes de carbone de cycles aromatiques à six chaînons ayant les atomes d'azote des groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone de radicaux hydrocarbonés non substitués
C07C 271/16 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'oxygène liés par des liaisons simples
C07C 323/12 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné ayant les atomes de soufre des groupes thio liés à des atomes de carbone acycliques du squelette carboné le squelette carboné étant acyclique et saturé
C07C 323/20 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné ayant l'atome de soufre d'au moins un des groupes thio lié à un atome de carbone d'un cycle aromatique à six chaînons du squelette carboné avec des atomes d'oxygène, liés par des liaisons simples, liés à des atomes de carbone du même cycle aromatique à six chaînons non condensé
C07F 9/18 - Esters des acides thiophosphoriques avec des composés hydroxyarylés
C08J 3/00 - Procédés pour le traitement de substances macromoléculaires ou la formation de mélanges
G03H 1/02 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une image; Leurs détails spécifiques - Détails
A display system includes (a) a display element having an organic light emitting diode-containing display active area disposed over a silicon backplane, (b) a display driver integrated circuit (DDIC) attached to the display element and electrically connected with the display active area, and (c) a thermal barrier disposed within the silicon backplane, where the thermal barrier is configured to inhibit heat flow through the silicon backplane and into the display active area.
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
H01L 51/50 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED)
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H01L 51/52 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED) - Détails des dispositifs
The disclosure provides recording materials including mono- or poly-phenyl-core derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several structures are disclosed for mono- or poly-phenyl-core derivatized monomers and polymers for use in Bragg gratings applications, leading to materials with higher refractive index, low birefringence, and high transparency. The disclosed mono- or poly-phenyl-core derivatized monomers and polymers thereof can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.
C07C 271/16 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'oxygène liés par des liaisons simples
C07C 271/28 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone acycliques avec l'atome d'azote d'au moins un des groupes carbamate lié à un atome de carbone d'un cycle aromatique à six chaînons à un atome de carbone d'un cycle aromatique à six chaînons non condensé
C07C 271/48 - Esters des acides carbamiques ayant des atomes d'oxygène de groupes carbamate liés à des atomes de carbone de cycles aromatiques à six chaînons avec les atomes d'azote des groupes carbamate liés à des atomes d'hydrogène ou à des atomes de carbone acycliques à des atomes de carbone de radicaux hydrocarbonés substitués par des atomes d'oxygène liés par des liaisons simples
C07C 323/12 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné ayant les atomes de soufre des groupes thio liés à des atomes de carbone acycliques du squelette carboné le squelette carboné étant acyclique et saturé
C07C 323/20 - Thiols, sulfures, hydropolysulfures ou polysulfures substitués par des halogènes, des atomes d'oxygène ou d'azote ou par des atomes de soufre ne faisant pas partie de groupes thio contenant des groupes thio et des atomes d'oxygène, liés par des liaisons simples, liés au même squelette carboné ayant l'atome de soufre d'au moins un des groupes thio lié à un atome de carbone d'un cycle aromatique à six chaînons du squelette carboné avec des atomes d'oxygène, liés par des liaisons simples, liés à des atomes de carbone du même cycle aromatique à six chaînons non condensé
C07C 333/04 - Acides monothiocarbamiques; Leurs dérivés ayant des atomes d'azote de groupes thiocarbamiques liés à des atomes d'hydrogène ou à des atomes de carbone acycliques
G03F 7/00 - Production par voie photomécanique, p.ex. photolithographique, de surfaces texturées, p.ex. surfaces imprimées; Matériaux à cet effet, p.ex. comportant des photoréserves; Appareillages spécialement adaptés à cet effet
G03H 1/02 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une image; Leurs détails spécifiques - Détails
A waveguide display includes a substrate transparent to visible light, a first grating on the substrate and configured to couple display light into or out of the substrate, and a phase structure on the substrate and configured to change a polarization state of the display light after or before the display light reaches the first grating. The first grating is characterized by a polarization-dependent diffraction efficiency. The first grating includes, for example, a surface-relief grating or a volume Bragg grating.
A method includes receiving, through a network by a computing system associated with an artificial-reality device, video data of a user of a second computing system comprising a first and second image of the user. The first and second images may be captured concurrently by a first camera and a second camera of the second computing system, respectively. The computing system generates a planar proxy for displaying the user and determines a pose for the planar proxy within a three-dimensional virtual environment. The computing system renders a left image for a left-eye display and a right image for a right-eye display of the artificial-reality device based on the planar proxy having the determined pose and the first image, and the planar proxy having the determined pose and the second image, respectively. The computing system displays the rendered left image and right image using the left-eye display and right-eye display, respectively.
H04N 13/117 - Transformation de signaux d’images correspondant à des points de vue virtuels, p.ex. interpolation spatiale de l’image les positions des points de vue virtuels étant choisies par les spectateurs ou déterminées par suivi du spectateur
H04N 13/344 - Affichage pour le visionnement à l’aide de lunettes spéciales ou de visiocasques avec des visiocasques portant des affichages gauche et droit
In one embodiment, a method includes the steps of generating, for a virtual object defined by a geometric representation, multiple viewpoints surrounding the virtual object, generating, for each of the multiple viewpoints, a simplified geometric representation of the virtual object based on the viewpoint, wherein the simplified geometric representation has a lower resolution than the geometric representation of the virtual object, receiving, from a client device, a desired viewpoint from which to view the virtual object, selecting one or more viewpoints from the multiple viewpoints based on the desired viewpoint, and sending, to the client device, rendering data including the simplified geometric representation and an associated view-dependent texture that are associated with each of the selected one or more viewpoints, the rendering data being configured for rendering an image of the virtual object from the desired viewpoint.
A system includes a display panel, a temperature sensor configured to measure a temperature of the display panel, a thermoelectric device coupled to the display panel and configured to transfer heat to or from the display panel, and a controller electrically coupled to the temperature sensor and the thermoelectric device. The controller is configured to receive the measured temperature of the display panel and, based on the measured temperature of the display panel, send a second signal to the thermoelectric device to cause the thermoelectric device to remove a first quantity of heat from the display panel or send a third signal to the thermoelectric device to cause the thermoelectric device to provide a second quantity of heat to the display panel.
G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
H01L 23/38 - Dispositifs de refroidissement utilisant l'effet Peltier
H01L 35/00 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails
G02F 1/1333 - Dispositions relatives à la structure
H01L 51/52 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés pour l'émission de lumière, p.ex. diodes émettrices de lumière organiques (OLED) ou dispositifs émetteurs de lumière à base de polymères (PLED) - Détails des dispositifs
43.
SYSTEMS AND METHODS FOR GENERATING DEVICE-IDENTIFYING DIGITAL CONTENT ON SOCIAL MEDIA PLATFORMS
A computer-implemented method for generating device-identifying digital content (214) on social media platforms may include (i) identifying digital content (214) created by a content-creation device (204) for display on a social media platform (206), (ii) modifying the digital content (214) to indicate that the digital content (214) was created by the content-creation device (204) such that, when the modified digital content (214) is displayed on the social media platform (206), the modified digital content (214) identifies the content-creation device (204) as the source of the digital content (214), and (iii) displaying, on the social media platform (206), the modified digital content (214) to enable users of the social media platform(206) to identify the content-creation device (204) as the source of the digital content (214). Various other methods, systems, and computer-readable media are also disclosed.
H04N 21/2743 - Hébergement vidéo de données téléchargées à partir du dispositif client
H04N 21/472 - Interface pour utilisateurs finaux pour la requête de contenu, de données additionnelles ou de services; Interface pour utilisateurs finaux pour l'interaction avec le contenu, p.ex. pour la réservation de contenu ou la mise en place de rappels, pour la requête de notification d'événement ou pour la transformation de contenus affichés
H04N 21/4788 - Services additionnels, p.ex. affichage de l'identification d'un appelant téléphonique ou application d'achat communication avec d'autres utilisateurs, p.ex. discussion en ligne
H04N 21/8352 - Génération de données de protection, p.ex. certificats impliquant des données d’identification du contenu ou de la source, p.ex. "identificateur unique de matériel" [UMID]
44.
SLAB WAVEGUIDE AND PROJECTOR WITH INTERMODAL COUPLING
A compact collimator or projector includes a waveguide (900) having a slab core structure (908) supporting at least two lateral modes of propagation. A light beam (105) coupled into a first mode (911) propagates to an edge (931) of the waveguide (900) where it is reflected by a reflector (921) to propagate back. Upon propagation back and forth, the light is converted into a second mode (912). An out-coupling region (914), such as an evanescent coupler, is provided to out-couple the light propagating in the second mode. The reflector (921) may have focusing power to collimate the out-coupled light beam. The light beam may be converted from the first to the second mode without being reflected from a reflector.
F21V 8/00 - Utilisation de guides de lumière, p.ex. dispositifs à fibres optiques, dans les dispositifs ou systèmes d'éclairage
G02B 6/10 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques
A sensor apparatus comprises: a pixel cell configured to generate a voltage, the pixel cell including one or more photodiodes configured to generate a charge in response to light and a charge storage device to convert the charge to a voltage; an integrated circuit comprising a plurality of integrated memory circuits and configured to: generate, based on a first voltage obtained from the charge storage device of the pixel cell, a first voltage value during a first time period; and generate, based on a second voltage generated by fixed pattern noise from the pixel cell and the integrated circuit, a second voltage value occurring a second time period; and one or more analog-to-digital converters (ADC) configured the convert the first voltage value to a first digital pixel value and the second voltage value to a second digital pixel value; and a processor configured to generate a first altered digital pixel value based on the first digital pixel value and the second digital pixel value, if the second digital value is less than a threshold value.
H04N 5/365 - Traitement du bruit, p.ex. détection, correction, réduction ou élimination du bruit appliqué au bruit à motif fixe, p.ex. non-uniformité de la réponse
H04N 5/3745 - Capteurs adressés, p.ex. capteurs MOS ou CMOS ayant des composants supplémentaires incorporés au sein d'un pixel ou connectés à un groupe de pixels au sein d'une matrice de capteurs, p.ex. mémoires, convertisseurs A/N, amplificateurs de pixels, circuits communs ou composants communs
In one example, an apparatus comprises: a semiconductor substrate comprising a first photodiode and a second photodiode, the first photodiode being positioned adjacent to the second photodiode along a first axis; a birefringent crystal positioned over the first photodiode and the second photodiode along a second axis perpendicular to the first axis; and a microlens positioned over the birefringent crystal along the second axis, the microlens having an asymmetric curvature along the first axis, an apex point of the curvature being positioned over the first photodiode along the second axis.
In one embodiment, a method includes projecting a triangle primitive of an object defined in three-dimensional space onto a two-dimensional space, accessing a distortion map generated based on distortion characteristics of a display system, distorting a grid representation of a screen of the display system using the distortion map, determining a visibility of the triangle primitive relative to pixels of the screen by comparing the projected triangle primitive and the distorted grid representation of the screen, rendering an image based on the determined visibility of the triangle primitive, the rendered image being configured to be displayed by the screen of the display system having the distortion characteristics.
In one embodiment, a method includes instructing, at a first time, a camera with multiple pixel sensors to capture a first image of an environment comprising an object to determine a first object pose of the object. Based on the first object pose, the method determines a predicted object pose of the object at a second time. The method determines a predicted camera pose of the camera at the second time. The method generates pixel-activation instructions based on a projection of a 3D model of the object having the predicted object pose onto a virtual image plane associated with the predicted camera pose. The method instructs, at the second time, the camera to use a subset of the plurality of pixel sensors to capture a second image of the environment according to the pixel-activation instructions. The method determines, based on the second image, a second object pose of the object.
There is provided an eye tracking system including an interferometer. The system also includes an emission section configured to direct a light beam from the interferometer to a user's eye and a lens. A bezel region is adjacent to the lens, and the emission section is disposed adjacent to the lens or on the lens.
Disclosed herein are systems and methods related to systems and methods of target wake time for peer-to-peer communication. In one aspect, a first wireless communication devices configures a subfield indicating use of peer-to-peer communication during a service period of a restricted target wake time. The first wireless communication device sends a message including the subfield to a second wireless communication device.
An optical element includes a first birefringent medium grating layer (455) with slanted Bragg grating planes (475) and orientations of directors of first optically anisotropic molecules spatially varying with a first in-plane pitch along the horizontal and a first vertical pitch. The optical element also includes a second birefringent medium layer (460) with slanted Bragg grating planes (465) with orientations of directors of second optically anisotropic molecules spatially varying with a second in-plane pitch and a second vertical pitch. The second birefringent medium layer is optically coupled with the first birefringent medium layer and configured to reduce chromatic dispersion effects of a light diffracted by the first birefringent medium layer. The first in-plane pitch is substantially the same as the second in-plane pitch, and the second vertical pitch is smaller than the first vertical pitch which means that the twist angle of the second grating is larger than the twist angle of the first grating.
Disclosed herein are related to a first device to communicate with an access point and a second device. In one aspect, the first device determines a first time interval for wireless communication between the first device and the access point. In one aspect, the first device determines a second time interval to prevent wireless communication between the first device and the access point. In one aspect, the first device determines a third time interval within the second time interval for wireless communication between the first device and the second device. In one aspect, the first device communicates with the access point during the first time interval. In one aspect, the first device communicates with the second device as a soft access point during the third time interval.
An optical coupler includes a plurality of volume gratings in a substrate. The gratings include an array of fringes extending along length and thickness dimensions of the substrate. A difference between a refractive index of the fringes and a refractive index of the substrate depends on a depth coordinate along the thickness dimension of the substrate. A dependence of the difference on the depth coordinate has a bell-shaped function which suppresses ghost image formation due to optical crosstalk between gratings of neighboring spatial pitches.
G03H 1/02 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une image; Leurs détails spécifiques - Détails
An example disclosed article (100) may include a first layer (120) and a second layer (140), where the first layer (120) and the second layer (140) may be bonded together within a peripheral region (102), the first layer (120) and the second layer (140)may be spaced apart within a cushion portion, the peripheral region may extend at least partially around the cushion portion (110), and the first layer (120) may include cellulose fibers. The article may be used as a component of a packaging arrangement that may be entirely recycled using a paper recycling process. Examples also include, for example, related methods, systems, and assemblies.
B32B 3/28 - Produits stratifiés caractérisés essentiellement par le fait qu'une des couches comporte des discontinuités ou des rugosités externes ou internes, ou bien qu'une des couches est de forme générale non plane; Produits stratifiés caractérisés essentiellement par des particularismes de forme caractérisés par une couche comportant des cavités ou des vides internes caractérisés par une couche comportant une feuille mince déformée, p.ex. ondulée, froissée
B32B 7/05 - Liaison entre couches les couches n’étant pas liées sur toute la surface, p. ex. liaison discontinue ou par motifs particuliers
B32B 27/32 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyoléfines
B32B 29/00 - Produits stratifiés composés essentiellement de papier ou de carton
B32B 29/06 - Produits stratifiés composés essentiellement de papier ou de carton spécialement traité, p.ex. glacé, parcheminé
B65D 81/05 - Réceptacles, éléments d'emballage ou paquets pour contenus présentant des problèmes particuliers de stockage ou de transport ou adaptés pour servir à d'autres fins que l'emballage après avoir été vidés de leur contenu spécialement adaptés pour protéger leur contenu des dommages mécaniques maintenant le contenu en position éloignée des parois de l'emballage ou des autres pièces du contenu
55.
COORDINATING COMMUNICATION LINKS FOR ARTIFICIAL REALITY
Disclosed herein are related to coordinating communication among a first access point, a first station device, a second access point, and a second station device. In one aspect, the second access point receives, from the first access point, a first beacon of the first access point at a first beacon transmission time. The first beacon may indicate an offset between the first beacon transmission time of the first beacon and a first data transmission time of the first access point for communication between the first access point and a first station device. In one aspect, the second access point may determine, according to the offset, a second data transmission time of the second access point to be distinct from the first data transmission time of the first access point. The second access point may communicate with a second station device, according to the second data transmission time.
The disclosed computer-implemented method may include identifying, via an artificial reality system, a plurality of physical objects in a real-world environment of a user and defining, based on identifying the plurality of objects, an object-manipulation objective for manipulating at least one of the plurality of objects. The method may also include determining an action sequence that defines a sequence of action steps for manipulating the at least one of the plurality of objects to complete the object-manipulation objective, and presenting, via the artificial reality system, a notification to the user indicative of the action sequence. Various other methods, systems, and computer-readable media are also disclosed.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p.ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comport
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 19/00 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie
G06T 19/20 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie Édition d'images tridimensionnelles [3D], p.ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
Disclosed herein includes A first wireless multilink device (MLD) including a transceiver configured to send, to a second wireless MLD, a request for multi-link reconfiguration. The transceiver may be configured to receive, from the second wireless MLD, a response to the request for the multi-link reconfiguration. The multi-link reconfiguration may include configuring to implement at least one of: adding a link, removing a link or switching one end of a link, between the first wireless MLD and the second wireless MLD. The first wireless MLD and the second wireless MLD may maintain connection via at least one link during the multi-link reconfiguration.
A grating coupler may be fabricated by exposing a photopolymer layer to grating forming light for forming periodic refractive index variations in the photopolymer layer. The photopolymer layer may be exposed to apodization light for reducing an amplitude of the periodic refractive index variations in a spatially-selective manner. The apodization may also be achieved or facilitated by subjecting outer surface(s) of the photopolymer layer to a chemically reactive agent that causes the refractive index contrast to be reduced near the surface(s) of application. The apodized refractive index profile of the gratings facilitates the reduction of optical crosstalk between different gratings of the grating coupler.
G03H 1/02 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une image; Leurs détails spécifiques - Détails
G03H 1/18 - Traitement particulier de supports d'enregistrement holographiques, p.ex. pour obtenir un hologramme à effet de "blaze", c. à d. présentant un profil destiné à favoriser un ordre particulier de diffraction
59.
METHODS OF MANUFACTURING OPTICALLY ANISOTROPIC POLYMER THIN FILMS
A method of manufacturing an optically anisotropic polymer thin film includes forming a composite structure that includes a polymer thin film and a high Poisson's ratio polymer thin film disposed directly over the polymer thin film, attaching a clip array to opposing edges of the composite, the clip array including a plurality of first clips slidably disposed on a first track located proximate to a first edge of the composite and a plurality of second clips slidably disposed on a second track located proximate to a second edge of the composite, applying a positive in-plane strain to the composite along a transverse direction by increasing a distance between the first clips and the second clips, and decreasing an inter-clip spacing amongst the first clips and amongst the second clips along a machine direction, wherein the high Poisson's ratio polymer thin film applies a negative in-plane strain to the polymer thin film along the machine.
B29C 55/02 - Façonnage par étirage, p.ex. étirage à travers une matrice; Appareils à cet effet de plaques ou de feuilles
B29C 55/08 - Façonnage par étirage, p.ex. étirage à travers une matrice; Appareils à cet effet de plaques ou de feuilles suivant un seul axe, p.ex. étirage oblique coupant la direction d'alimentation
An in-ear device is implemented as part of an audio system to present a user with improved audio content within an artificial reality system. The in-ear device is a fully integrated device with an internal microphone (320), an external microphone (330), and a transducer (340) in which portions of the transducer (340) form portions of the body (310) of the device. This integration of transducer (340) into the body (310) of the in-ear device reduces the size of the in-ear device and allows for placement deeper within the ear canal of the user. The transducer (340) generates audio content based on instructions received from an audio system that may be located on a device that is external to the in-ear device. The external microphone (330) provides hear-through functionality, while the internal microphone (320) provides feedback information to the audio system.
An off-axis focusing geometric phase (Pancharatnam-Berry phase) lens (300, 1120) comprises an active or passive optically anisotropic film in which the optic axis orientation in-plane is a function of position, exhibiting an in-plane rotation along at least two opposite directions in-plane extending from the centre of the lens pattern to opposite peripheral portions of the lens. The optic axis is arranged to rotate in the same sense along those in-plane directions. The rate of change of the azimuthal angle between the projection of the optic axis in-plane and a reference direction is configured to increase from the centre of the lens pattern to the periphery in at least that portion of the lens including the lens pattern centre. The lens pattern centre is shifted from the geometrical centre of the lens by a predetermined distance in a predetermined direction.
G02F 1/29 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c. à d. déflexion
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
G02B 5/30 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES Éléments optiques autres que les lentilles Éléments polarisants
G02F 1/139 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p.ex. cellules d'affichage individuelles à cristaux liquides caractérisés par l'effet électro-optique ou magnéto-optique, p.ex. transition de phase induite par un champ, effet d'orientation, interaction entre milieu récepteur et matière additive ou diffusion dynamique basés sur des effets d'orientation où les cristaux liquides restent transparents
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
62.
METHODS OF DRIVING LIGHT SOURCES IN A NEAR-EYE DISPLAY
A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.
G06F 3/147 - Sortie numérique vers un dispositif de visualisation utilisant des panneaux de visualisation
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G09G 3/32 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED]
H04N 13/332 - Affichage pour le visionnement à l’aide de lunettes spéciales ou de visiocasques
G09G 3/3225 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED] organiques, p.ex. utilisant des diodes électroluminescentes organiques [OLED] utilisant une matrice active
63.
POLARIZATION SELECTIVE OPTICAL ELEMENT AND FABRICATION METHOD
A method includes obtaining a mixture including a first composition and a second composition. The method also includes forming a layer based on the mixture. Ratios between an amount of the first composition and an amount of the second composition at at least two locations of the layer are different.
A method includes attaching a clip array to opposing edges of a polymer thin film, the clip array having a plurality of first clips slidably disposed on a first track located proximate to a first edge of the polymer thin film and a plurality of second clips slidably disposed on a second track located proximate to a second edge of the polymer thin film, applying a positive in-plane strain to the polymer thin film along a transverse direction by increasing a distance between the first clips and the second clips, and decreasing an inter-clip spacing amongst the first clips and amongst the second clips along a machine direction while applying the in-plane strain to form an optically anisotropic polymer thin film.
A polymer thin film comprising a polymer layer having a first in-plane refractive index (nx); and a second in-plane refractive index (ny), wherein nx> 1.8 and (nx- ny) > 0.1. Also method comprising attaching a clip array to opposing edges of a polymer thin film, applying a positive in-plane strain to the polymer thin film along a transverse direction by increasing a distance between the first clips and the second clips and decreasing an inter-clip spacing amongst the first clips and amongst the second clips along a machine direction while applying the in-plane strain to form an optically anisotropic polymer thin film, wherein during the act of applying the in-plane strain the method further comprises at least one of increasing a temperature of the polymer thin film and decreasing a strain rate of the polymer thin film as a function the polymer thin film's location along the machine direction.
B29C 55/08 - Façonnage par étirage, p.ex. étirage à travers une matrice; Appareils à cet effet de plaques ou de feuilles suivant un seul axe, p.ex. étirage oblique coupant la direction d'alimentation
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 27/36 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyesters
Disclosed devices may include a membrane, a first electrode supported by the membrane, a second electrode, a capacitance sensor configured to determine a capacitance measurement between the first electrode and the second electrode, and a controller configured to control an electrical potential applied between the electrode and the second electrode. The controller may be configured to modify the electrical potential based on the capacitance measurement. Example devices may include one or more flexible membranes that may, at least in part, define an enclosure that is at least partially filled with a dielectric fluid. Examples also include associated methods and systems.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 43/14 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles à action péristaltique ayant des organes flexibles du genre plat
H01L 41/04 - DISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS - Détails - Détails d'éléments piézo-électriques ou électrostrictifs
H02N 1/00 - Générateurs ou moteurs électrostatiques utilisant un porteur mobile de charge électrostatique qui est solide
67.
ARTIFICIAL REALITY SYSTEMS INCLUDING DIGITAL AND ANALOG CONTROL OF PIXEL INTENSITY
Electronic display devices include digital and analog control of pixel intensity. A digital pixel control circuit (630) and an analog pixel control circuit (650) are provided within each pixel (612A). The digital pixel control circuit employs digital PWM techniques to control a number of subframes within each frame during which a driving current is supplied to a light emitting element within the pixel. The analog pixel control circuit (650) controls the level of the driving current supplied to the light emitting element within the pixel during the frame. In one example, the digital pixel control circuit (630) and the analog pixel control circuit (650) may together control pixel intensity with the analog pixel control circuit (650) providing additional in-pixel bits for increased color depth. Alternatively, the digital pixel control circuit (630) may control pixel intensity and the analog pixel control circuit (650) may control non-uniformity compensation.
G09G 3/20 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice
G09G 3/3233 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED] organiques, p.ex. utilisant des diodes électroluminescentes organiques [OLED] utilisant une matrice active avec un circuit de pixel pour commander le courant à travers l'élément électroluminescent
68.
DIGITAL PIXEL SENSOR HAVING REDUCED QUANTIZATION OPERATION
In some examples, a sensor apparatus comprises: a pixel cell configured to generate a voltages, the pixel cell including a photodiode configured to generate charge in response to incoming light, and a charge storage device to convert the charge to a voltage; an integrated circuit configured to: determine a first captured voltage converted by the charge storage device during a first time period; compare the first captured voltage to a threshold voltage value; and in response to determining that the first captured voltage meets or exceeds the threshold voltage value: determine first time data corresponding to the first time period; and prevent the charge storage device from further generating a charge; and an analog-to- digital converter (ADC) configured to generate a digital pixel value based on the first captured voltage, and a memory to store the digital pixel value and the first time data..
H04N 5/3745 - Capteurs adressés, p.ex. capteurs MOS ou CMOS ayant des composants supplémentaires incorporés au sein d'un pixel ou connectés à un groupe de pixels au sein d'une matrice de capteurs, p.ex. mémoires, convertisseurs A/N, amplificateurs de pixels, circuits communs ou composants communs
H04N 5/369 - Transformation d'informations lumineuses ou analogues en informations électriques utilisant des capteurs d'images à l'état solide [capteurs SSIS] circuits associés à cette dernière
H04N 5/378 - Circuits de lecture, p.ex. circuits d’échantillonnage double corrélé [CDS], amplificateurs de sortie ou convertisseurs A/N
A high voltage-driven system includes a high voltage optical transformer and a high voltage driven device, where the high voltage optical transformer is located in close proximity to the high voltage driven device. A high voltage connection between the high voltage optical transformer and the high voltage driven device may be shorter than a low voltage connection between the high voltage optical transformer and a low voltage power source used to control the transformer.
H01L 31/167 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails structurellement associés, p.ex. formés dans ou sur un substrat commun, avec une ou plusieurs sources lumineuses électriques, p.ex. avec des sources lumineuses électroluminescentes, et en outre électriquement ou optiquement couplés avec lesdites sour le dispositif à semi-conducteur sensible au rayonnement étant commandé par la ou les sources lumineuses les sources lumineuses et les dispositifs sensibles au rayonnement étant tous des dispositifs semi-conducteurs caractérisés par au moins une barrière de potentiel ou de surface
H02M 3/04 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques
70.
MULTI-SENSOR CAMERA SYSTEMS, DEVICES AND METHODS FOR PROVIDING IMAGE PAN, TILT AND ZOOM FUNCTIONALITY
The disclosed camera system may include a primary camera and a plurality of secondary cameras that each have a maximum horizontal FOV that is less than a maximum horizontal FOV of the primary camera. Two of the plurality of secondary cameras may be positioned such that their maximum horizontal FOVs overlap in an overlapped horizontal FOV and the overlapped horizontal FOV may be at least as large as a minimum horizontal FOV of the primary camera. The camera system may also include an image controller that simultaneously activates two or more of the primary camera and the plurality of secondary cameras when capturing images from a portion of an environment included within the overlapped horizontal FOV. Various other systems, devices, assemblies, and methods are also disclosed.
H04N 5/247 - Disposition des caméras de télévision
H04N 5/232 - Dispositifs pour la commande des caméras de télévision, p.ex. commande à distance
G03B 17/00 - APPAREILS OU DISPOSITIONS POUR PRENDRE DES PHOTOGRAPHIES, POUR LES PROJETER OU LES VISIONNER; APPAREILS OU DISPOSITIONS UTILISANT DES TECHNIQUES ANALOGUES UTILISANT D'AUTRES ONDES QUE DES ONDES OPTIQUES; LEURS ACCESSOIRES - Parties constitutives des appareils ou corps d'appareils; Leurs accessoires
H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c. à d. systèmes dans lesquels le signal vidéo n'est pas diffusé
An optical device includes a light source and a polarization selective optical element. The polarization selective optical element includes a stack of a plurality of cholesteric liquid crystal layers. The plurality of cholesteric liquid crystal layers includes a first cholesteric liquid crystal layer with liquid crystal molecules arranged in a first helical configuration having a first pitch range for light of a first wavelength range and a second cholesteric liquid crystal layer with liquid crystal molecules arranged in a second helical configuration having a second pitch range for light of a second wavelength range. The second wavelength range is different from the first wavelength range.
G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p.ex. des polariseurs ou des réflecteurs
G02F 1/1347 - Disposition de couches ou de cellules à cristaux liquides dans lesquelles un faisceau lumineux est modifié par l'addition des effets de plusieurs couches ou cellules
A device includes a waveguide, an in-coupling element, and an out-coupling element coupled with the waveguide. The waveguide, the in-coupling element, and the out-coupling element are configured to deliver a plurality of portions of an image light to an eye-box of the device. At least one of the in-coupling element or the out-coupling element includes a polarization selective diffractive element. The polarization selective diffractive element includes a grating including a plurality of microstructures defining a plurality of grooves filled with a passive optically anisotropic material having a first effective refractive index along a groove direction of the grooves and a second effective refractive index along an in-plane direction perpendicular to the groove direction. One of the first effective refractive index or the second effective refractive index substantially matches with a refractive index of the microstructures.
In one embodiment, one or more computing systems may receive an image of a portion of a face of a first user. The one or more computing systems may access a three-dimensional (3D) facial model representative of the face of the first user. The one or more computing systems may identify one or more facial features captured in the image and determine a camera pose relative to the 3D facial model based on the identified one or more facial features in the image and predetermined feature locations on the 3D facial model. The one or more computing systems may determine a mapping relationship between the image and the 3D facial model by projecting the image of the portion of the face of the first user onto the 3D facial model from the camera pose and cause an output image of a facial representation of the first user to be rendered.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 7/33 - Détermination des paramètres de transformation pour l'alignement des images, c. à d. recalage des images utilisant des procédés basés sur les caractéristiques
G06T 19/00 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie
G06T 13/40 - Animation tridimensionnelle [3D] de personnages, p.ex. d’êtres humains, d’animaux ou d’êtres virtuels
In one embodiment, a computing system may access a video including a first frame and a second frame. The computing system may determine first sampling locations for the first frame and determine second sampling locations for the second frame by transforming the first sampling locations to the second frame according to an optical flow between the first frame and the second frame. The computing system may select a subset of the second sampling locations based on a comparison between pixels in the first frame corresponding to the first sampling locations and pixels in the second frame corresponding to the second sampling locations. The computing system may define one or more rejection areas in the second frame based on the subset of the second sampling locations to determine third sampling locations in areas outside of the rejection areas. The computing system may generate a sample of the video.
H04N 19/587 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage prédictif mettant en œuvre un sous-échantillonnage ou une interpolation temporels, p.ex. décimation ou interpolation subséquente d’images dans une séquence vidéo
H04N 19/59 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage prédictif mettant en œuvre un sous-échantillonnage spatial ou une interpolation spatiale, p.ex. modification de la taille de l’image ou de la résolution
G06T 17/30 - Description de surfaces, p.ex. description de surfaces polynomiales
75.
SYSTEMS AND METHODS FOR MANAGING ENERGY DETECTION THRESHOLDS
Disclosed herein includes a system, a method, and a device for managing energy detection thresholds. A device can perform an energy detection (ED) measurement of a channel, comparing against a defined ED threshold function, so as to determine if the channel is occupied. The device can perform a measurement of a channel indicative of a power level of signals detected in the channel. The device can compare the measurement to a threshold having a value that is a continuous monotonic function having a sloped region between a first region having a first constant value and a second region having a second constant value. The sloped region can include a function of a maximum transmit power of the device and at least one of the first constant value or the second constant value. The device can determine, responsive to the comparison, whether the channel is occupied or unoccupied.
A holographic display with a spatial light modulator coupled to a pupil-replicating lightguide is disclosed. The spatial light modulator provides a light beam with spatially modulated amplitude and/or phase. The light beam is replicated by the pupil-replicating lightguide into a plurality of portions. The portions interfere at an exit pupil to provide an image for direct observation by a user. An eye-tracking system may be provided to determine the position of the user pupils, and the spatial modulation of the light beam may be adjusted accordingly to make sure that the optical interference of the beam portions at the eye pupils provides the required image.
G02B 26/06 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la phase de la lumière
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
A computing system may determine a head pose and a wrist pose of a user based on sensor data captured by a head-mounted device. The computing system may further receive an image captured by a camera of the head-mounted device that includes at least portion of the body of the user. Using this image, the computing system may determine one or more regions in the image that correspond to the body of the user, and determine, based on these regions and a camera pose of the camera, a three-dimensional volume constraint in which an elbow of the user is likely to be located when the image was captured. From this information, the computing system may utilize the head pose, the wrist pose, and the three-dimensional volume constraint to infer a body pose of the user that includes at least an inferred elbow pose associated with the user.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
78.
SYSTEMS AND METHODS FOR PREDICTING LOWER BODY POSES
A computing system may receive sensor data from one or more sensors coupled to a user. Based on this sensor data, the computing system may generate an upper body pose that corresponds to a first portion of a body of the user, which may comprise a head and an arm of the user. The computing system may process the upper body pose of the user using a machine learning model to generate a lower body pose that corresponds to a second portion of the body of the user, which may comprise a leg of the user. The computing system may generate a full body pose of the user based on the upper body pose and the lower body pose.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
79.
ARTIFICIAL REALITY COLLABORATIVE WORKING ENVIRONMENTS
Aspects of the present disclosure are directed to creating and administering artificial reality collaborative working environments and providing interaction modes for them. An XR work system can provide and control such artificial reality collaborative working environments to enable, for example, A) links between real-world surfaces and XR surfaces; B) links between multiple real-world areas to XR areas with dedicated functionality; C) maintaining access, while inside the artificial reality working environment, to real-world work tools such as the user's computer screen and keyboard; D) various hand and controller modes for different interaction and collaboration modalities; E) use-based, multi-desk collaborative room configurations; and F) context-based auto population of users and content items into the artificial reality working environment.
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/0346 - Dispositifs de pointage déplacés ou positionnés par l'utilisateur; Leurs accessoires avec détection de l’orientation ou du mouvement libre du dispositif dans un espace en trois dimensions [3D], p.ex. souris 3D, dispositifs de pointage à six degrés de liberté [6-DOF] utilisant des capteurs gyroscopiques, accéléromètres ou d’inclinaiso
A method includes receiving a first wireless signal detected by a first device in an environment, the first wireless signal including a first distortion pattern caused by an object moving in the environment, receiving a second wireless signal detected by a second device in the environment, the second wireless signal including a second distortion pattern caused by the object moving in the environment, determining, by comparing the first distortion pattern to the second distortion pattern, that the first distortion pattern and the second distortion pattern correspond to a same movement event associated with the object moving in the environment, determining a timing offset between the first device and the second device based on information associated with the first distortion pattern and the second distortion pattern, and determining, based on the timing offset, temporal correspondences between data generated by the first device and data generated by the second device.
G01S 13/00 - Systèmes utilisant la réflexion ou la reradiation d'ondes radio, p.ex. systèmes radar; Systèmes analogues utilisant la réflexion ou la reradiation d'ondes dont la nature ou la longueur d'onde sont sans importance ou non spécifiées
G01S 7/35 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe - Détails de systèmes non impulsionnels
G01S 7/00 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , ,
G01S 13/58 - Systèmes de détermination de la vitesse ou de la trajectoire; Systèmes de détermination du sens d'un mouvement
81.
TECHNIQUES FOR MANUFACTURING VARIABLE ETCH DEPTH GRATINGS USING GRAY-TONE LITHOGRAPHY
A method of fabricating gratings with variable grating depths including depositing a first grating material layer with a uniform thickness profile on a substrate, forming an etch mask layer having a variable thickness profile on the first grating material layer, etching the etch mask layer and the first grating material layer to change the uniform thickness profile of the first grating material layer to a non-uniform thickness profile, forming a patterned hard mask on the first grating material layer, and etching, using the patterned hard mask, the first grating material layer to form a grating with a variable depth in the first grating material layer.
A method includes a computing system associated with an AR device querying, based on a location of the AR device, a registry associated with a distributed map network for a first gateway address associated with a first gateway that provides access to a 3D street map in a physical region. The system downloads the 3D street map by connecting to the first gateway using the first gateway address. The system predicts that the AR device will enter a building in the physical region and queries the registry for a second gateway address associated with a second gateway. The system requests, using the second gateway address, access to the second gateway by providing user authentication information. The system downloads a 3D interior map associated with the building through the second gateway and localizes the AR device within the building using the 3D interior map after the AR device enters the building.
A method of leakage-compensated global illumination comprises obtaining position data for at least one of a head or an eye of a user of a display system by an application processor, rendering image data for an image frame by the application processor based on the position data, modifying the image data to compensate for leakage associated with a global illumination by a display of the display system, and sending the image data to a display driver circuit of the display system for displaying the image frame on the display through the global illumination.
G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
G09G 3/3233 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED] organiques, p.ex. utilisant des diodes électroluminescentes organiques [OLED] utilisant une matrice active avec un circuit de pixel pour commander le courant à travers l'élément électroluminescent
A display device may include a plurality of tiled spatial light modulators (SLMs) imparting image information upon respective light beams to obtain image beams. Pupil steering optics are configured to steerably direct the image beams towards a same or different exit pupil locations within an eyebox of the display device, providing exit pupil replication and/or an expanded field of view. An eye tracking system provides location information of the user's eye, enabling the pupil steering optic to direct at least some of the image beams to a desired exit pupil location.
A display device includes a diffractive optical element and a tunable light source operable in different states including a first state and a second state. The tunable light source provides first light having a first wavelength while the tunable light source is in the first state and second light having a second wavelength, distinct from the first wavelength, while the tunable light source is in the second state. The first wavelength and the second wavelength correspond to a first color band. The diffractive optical element is positioned to receive and redirect the first light and receive and redirect the second light. The diffractive optical element has a first focal length for the first light and a second focal length, distinct from the first focal length, for the second light.
Aspects of the present disclosure are directed to providing an artificial reality environment with augments and surfaces. An "augment" is a virtual container in 3D space that can include presentation data, context, and logic. An artificial reality system can use augments as the fundamental building block for displaying 2D and 3D models in the artificial reality environment. For example, augments can represent people, places, and things in an artificial reality environment and can respond to a context such as a current display mode, time of day, a type of surface the augment is on, a relationship to other augments, etc. Augments can be on a "surface" that has a layout and properties that cause augments on that surface to display in different ways. Augments and other objects (real or virtual) can also interact, where these interactions can be controlled by rules for the objects evaluated based on information from the shell.
In one embodiment, a computing system may access first alpha values associated with first pixels in a first pixel region of an image and determine a bit budget for encoding the first alpha values. The computing system may then select a first alpha-encoding mode for the first alpha values to reflect a determination that the first alpha values are all fully transparent or all fully opaque, and encode the first alpha values by storing the selected first alpha-encoding mode as part of a metadata without using the bit budget to encode the first alpha values individually. The computing system may then update a record of unallocated bits available for allocation based on the bit budget unused in the encoding of the first alpha values, and allocate, based on the record of unallocated bits, bits to encode a set of alpha values different from the first alpha values.
H04N 19/21 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage d'objets vidéo avec codage plan alpha binaire pour les objets vidéo, p.ex. codage arithmétique contextuel [CAE]
88.
COUPLING LIGHT SOURCE TO PHOTONIC INTEGRATED CIRCUIT
A device or system (200) includes a light source (250), an optical waveguide (170), and a light director, or microlens (133). The light source emits illumination light (263). The optical waveguide (170) includes a light input coupler (172). The light director (133) receives the illumination light (263) and generates shaped light (267). The light director adjusts the tilt angle and/or the divergence angle of the illumination light (263).
Disclosed herein are systems and methods related to slot assignments to traffic streams. In one aspect, a first wireless communication device sends, to a second wireless communication device, a request message including a latency marker having a requested value. The requested value indicates that a corresponding traffic stream between the first wireless communication device and the second wireless communication device is latency sensitive. Responsive to the request message, the first wireless communication device receives, from the second wireless communication device, a response message including a response latency marker. The response latency marker includes a response value for the corresponding traffic stream. When the response value is the same as the requested value, the first wireless communication device communicates corresponding traffic stream as a prioritized traffic stream instead of a regular traffic stream, with the second wireless communication device.
Disclosed herein are systems and methods related to describing slot information. In one aspect, a first wireless communication device determines a bitmap having a value for each of a plurality of slots for wireless traffic. The bitmap may indicate a status or type of a corresponding slot. The first wireless communication device may send, using a wireless local area network (WLAN) based protocol, to a second wireless communication device, a message comprising the bitmap. The message may further comprise a duration of each of the plurality of slots, a period of the plurality of slots, and a persistency of the plurality of slots.
A self-calibrating display can detect and compensate for binocular disparity or other visual imperfection of the display. The display includes a pair of projection units for projecting test light carrying test images through waveguides, which are normally used to carry images to left and right eyes of a user. A detection unit detects the test light propagated through the waveguides, and extracts the test images. Position of reference features in the detected test images may be used to determine binocular disparity, and luminance and color distribution across the test images may be used to determine the illumination and color uniformity of the images displayed to the user. After the visual defects have been detected, they may be reduced or compensated for by pre-emphasizing or shifting images to be displayed to the left and right eyes of the user. In the embodiment of claim 4, fig.12a-d, the first and second projection units are configured for providing the image light and the test light in a time-sequential manner, wherein the image light carries first and second modified images such that, for each eye of the user, a sum of the respective modified image and the respective test image equals to an image to be displayed to the eye of the user, wherein the detection unit is synchronized with providing the test light by the first and second projection units, for detecting the first and second test images substantially independently on the images to be displayed to the eyes of the user.
In one embodiment, a computing system may access color components of a pixel region in an image, and then determine a color variance for each of the color components. The computing system may further determine a desired bit allocation for each of the color components based on the color variance associated with that color component. The computing system may then determine a total bit allocation for the pixel region based on the desired bit allocations for the color components, as well as a number of unallocated bits available for allocation. The computing system may further determine a final bit allocation for each of the color components by allocating the total bit allocation to each of the color components according to the desired bit allocation for each of the color components. The computing system may then encode each of the color components using the associated final bit allocation.
H04N 19/14 - Complexité de l’unité de codage, p.ex. activité ou estimation de présence de contours
H04N 19/15 - Débit ou quantité de données codées à la sortie du codeur par contrôle de la taille réelle des données compressées au niveau de la mémoire avant de décider du stockage dans la mémoire tampon de transmission
H04N 19/186 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une couleur ou une composante de chrominance
93.
RATE CONTROLLED IMAGE AND TEXTURE DATA COMPRESSION
In one embodiment, a computing system may determine a quantization range having a first quantization endpoint and a second quantization endpoint. While fixing the second quantization endpoint to an initial value determined based on the color range, one of a plurality of first candidate values for the first quantization endpoint is selected based on a plurality of corresponding first quantization errors. While fixing the first quantization endpoint to the selected first candidate value, one of a plurality of second candidate values for the second quantization endpoint is selected based on a plurality of corresponding second quantization errors. The computing system may define quantization levels corresponding to the bit depth using the quantization range defined by the first quantization endpoint and the second quantization endpoint, and then encode the one or more color components of the pixel region using the quantization levels.
H04N 19/154 - Qualité visuelle après décodage mesurée ou estimée de façon subjective, p.ex. mesure de la distorsion
H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc
H04N 19/14 - Complexité de l’unité de codage, p.ex. activité ou estimation de présence de contours
H04N 19/15 - Débit ou quantité de données codées à la sortie du codeur par contrôle de la taille réelle des données compressées au niveau de la mémoire avant de décider du stockage dans la mémoire tampon de transmission
H04N 19/186 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une couleur ou une composante de chrominance
94.
LIGHT GUIDE DISPLAY ASSEMBLY FOR PROVIDING EXPANDED FIELD OF VIEW
A device includes one or more light guides. The device also includes a first in-coupling element configured to couple a first light having a first input field of view ("FOV") into a first light guide, and a second in-coupling element configured to couple a second light having a second input FOV into a second light guide. The device also includes a first out-coupling element configured to couple the first light out of the first light guide as a first output light having a first output FOV, and a second out-coupling element configured to couple the second light out of the second light guide as a second output light having a second output FOV substantially non-overlapping with the first output FOV. A combination of the first output FOV and the second output FOV is larger than at least one of the first output FOV or the second output FOV.
A micro-light emitting diode (micro-LED) including a substrate, a mesa structure including a plurality of semiconductor layers formed on the substrate, and an insulation material layer on sidewalls of the mesa structure. The mesa structure includes a light emitting region configured to emit light of a first wavelength. The insulation material layer includes a transparent insulating material and metal nanoparticles immersed in the transparent insulating material. The transparent insulating material and the metal nanoparticles are configured to cause plasmonic scattering of the light of the first wavelength back into the mesa structure, such that the light of the first wavelength may be randomized in the mesa structure, thereby improving the light extraction efficiency and external quantum efficiency of the micro-LED.
H01L 33/44 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les revêtements, p.ex. couche de passivation ou revêtement antireflet
An electronic device localizes an audio source by normalizing an amplitude of an audio signal over a time period. The electronic device receives, from one or more microphones of the electronic device, signal(s) representative of audio emitted by an audio source over a time period. The electronic device estimates amplitudes of the signal(s) at a first time within the time period and at a second time within the time period, where the second time is different from the first time. The electronic device normalizes the amplitudes associated with the first and second times to generate normalized amplitudes. The electronic device determines a combined amplitude representative of the audio emitted by the audio source by combining the normalized amplitudes. The electronic device determines, based at least in part on the combined amplitude and motion of the electronic device, an estimated position of the audio source relative to the electronic device.
G01S 5/18 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant des ondes ultrasonores, sonores ou infrasonores
97.
BEAM SCANNER WITH PIC INPUT AND NEAR-EYE DISPLAY BASED THEREON
A beam scanner and a display device is based on a photonic integrated circuit coupling light to a pair of opposed reflectors. One reflector is tiltable and has an opening through which the light is coupled, and the other reflector is configured to focus light, e.g. a concave reflector. A polarization folding configuration is used to cause the focused light propagate through the opening in the first reflector, get collimated by the second reflector, get scanned by the first reflector, and propagate through the second reflector to a pupil-replicating lightguide which provides multiple laterally offset parallel portions of the scanned beam.
G02B 6/12 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
A system is adapted to access (910) a first mask associated with a first color component and a first pixel in an image, and a second mask associated with a second color component and a second pixel in the image, to access (920) first component values of the first color component in a first pixel region containing the first pixel, and second component values of the second color component in a second pixel region containing the second pixel, to modify the first component values using the first mask, and the second component values using the second mask (930) and to cause (940) the modified first and second component values to be displayed by light-emitting elements of the first and second color components. The first and second masks may be generated based on relative positions of the first light-emitting elements and the second light-emitting elements.
G09G 3/32 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p.ex. utilisant des diodes électroluminescentes [LED]
H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
G09G 3/00 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
99.
DYNAMICALLY ADDRESSABLE HIGH VOLTAGE OPTICAL TRANSFORMER WITH INTEGRATED OPTICALLY TRIGGERED SWITCHES
An optical transformer includes a plurality of light emitters, a plurality of photovoltaic cells positioned to receive light from at least a first subset of the plurality of light emitters, the plurality of photovoltaic cells including at least a first photovoltaic cell and a second photovoltaic cell, and one or more optically triggered switches positioned to receive light from at least a second subset of the plurality of light emitters, the one or more optically triggered switches including at least a first optically triggered switch electrically coupled to the first photovoltaic cell and the second photovoltaic cell. A method of operating the optical transformer is also described.
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H02M 3/22 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
A displacement sensor measures capacitance between a rotor-stator pair. The displacement sensor includes a plurality of stators coupled to a first object. The plurality of stators is oriented parallel to an axis of motion between the first object and a second object. The displacement sensor further includes a plurality of rotors coupled to the second object. The plurality of rotors is oriented parallel to the axis of motion. Each rotor of the plurality of rotors is aligned with and configured to receive a corresponding stator of the plurality of stators to create a respective rotor-stator pair. Capacitance between the rotor-stator pairs change as a function of position of the first object relative to the second object along the axis of motion. An amount of displacement of the first object relative to the second object is determined based in part on the capacitance values.
G01B 7/14 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la distance ou la marge entre des objets ou des ouvertures espacés
G01B 7/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour tester l'alignement des axes
brevets
