Abstract

An apparatus configured to power a battery of an audio system includes a plurality of switches, where the plurality of switches comprises a power switch and a plurality of voltage regulator switches, a microcontroller, and a voltage regulator circuit. The microcontroller is configured to determine whether the power switch is activated. The microcontroller is configured to, in response to determining the power switch is activated, activate the plurality of voltage regulator switches to electrically couple the voltage regulator circuit to the battery.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/44 - Methods for charging or discharging

Abstract

In at least one embodiment, an active noise cancellation (ANC) system is provided. The system includes at least one loudspeaker to project anti-noise sound in response to receiving a first anti-noise signal and at least one microphone to provide an error signal indicative of noise and the anti-noise sound. The system further includes a head tracker sensor to provide a first signal indicative of a position of a user's head and a first controllable filter programmed to modify a transfer function between the microphone and at least one remote microphone location to generate an estimated remote microphone error signal based at least on the error signal and the first signal. The system further includes a second controllable filter programmed to generate the first anti-noise signal to account for the position of the user's head at least based on the estimated remote microphone error signal.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

A system and method for sound-activated remote control of vehicle functions for a vehicle having a remote-control system, the remote-control system has a key fob and at least one vehicle control module. A sound sensor module of a stand-alone smart sound sensor detects a sound event, correlates the sound event with a code, and transmits the code to the remote-control system to activate a function on the vehicle that is associated with the code.

IPC Classes  ?

• B60R 16/037 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for occupant comfort
• G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog

Abstract

A vibration sensor assembly having a rigid surface and a transducer integrated with the rigid surface. The transducer measures structure-borne sound waves that cause vibration motion of the rigid surface. The rigid surface may be glass, metal or plastic and may be part of an interior part or panel, or an exterior panel, of a vehicle.

IPC Classes  ?

• G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
• B60R 1/12 - Mirror assemblies combined with other articles, e.g. clocks
• G01H 1/12 - Measuring vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
• H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
• H10N 30/88 - Mounts; Supports; Enclosures; Casings

Abstract

Methods and systems are proposed for a communication network. In one example, a system comprises a wireless communication network comprising a verification logic hardware. The system further comprises a processor of a vehicle communicatively coupled to the verification logic hardware, wherein the processor comprises instructions stored on non-transitory memory thereof that when executed enable the processor to determine a message type of a message, and distribute the message to a first queue of a verification logic software of the processor or to a second queue of the verification logic hardware.

IPC Classes  ?

• H04L 47/6295 - Queue scheduling characterised by scheduling criteria using multiple queues, one for each individual QoS, connection, flow or priority
• H04L 47/62 - Queue scheduling characterised by scheduling criteria
• H04L 47/6275 - Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority

Abstract

The present disclosure includes computer-implemented techniques for generating audio signals in an audio system. The audio system includes a CPU executing an audio upmix applications. The audio system receives an audio input signal. The audio system separates a plurality of component audio signals from the audio input signal. For each component audio signal included in the plurality of component audio signals, the audio system maps the component audio signal to one or more of a plurality of audio output devices. The audio system transmits each component audio signal to the corresponding one or more audio output devices based on the mapping.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• G10H 1/00 - ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE - Details of electrophonic musical instruments
• H04S 3/02 - Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Abstract

In at least one embodiment, an electronic module includes a first housing, a second housing, a printed circuit board (PCB), a ground contact, and a sealant. The first housing includes a first receiving portion. The second housing includes a second receiving portion, the second housing being coupled to the first housing defining a cavity positioned between the first receiving portion and the second receiving portion. The printed circuit board (PCB) is positioned between the first housing and the second housing therein to receive a plurality of electronics. The ground contact is positioned on the PCB and within the cavity contacting the first receiving portion and the second receiving portion. The ground contact mitigates electromagnetic interference (EMI) generated from the plurality of electronics. The sealant is positioned within the cavity and adjacent to the ground contact to prevent debris or liquid from contacting the plurality of electronics.

IPC Classes  ?

• H05K 1/02 - Printed circuits - Details
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
• H05K 5/06 - Hermetically-sealed casings

Abstract

The disclosure provides a method and a system for auto-labeling dynamic vision sensor (DVS) frames. The method may comprise generating a plurality of first frames in a first time period via a DVS which is recording a real scene, wherein light is supplemented to an area where the DVS is recording, in the first time period. The method may comprise applying a deep leaning model to at least one of the plurality of first frames to obtain at least one first detection result. Further, the method may comprise generating a plurality of second frames in a second time period via the DVS, wherein no light is supplemented to the area where the DVS is recording, in the second time period. The method may further comprise utilizing the first detection result for one of the plurality of second frames to generate an auto-labeled DVS frame.

IPC Classes  ?

• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
• G06V 10/70 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning

Abstract

Techniques for high-resolution dimming include a light fixture having a plurality of light sources arranged in a plurality of groups, wherein each group comprises one or more light sources. The plurality of groups are controlled so that each of the groups is repeatedly switched on and off according to a repeating pattern, the repeating pattern including at least three different combinations of which of the plurality of groups is switched on and which of the plurality of groups is switched off. Each of the at least three different combinations is repeated at least once every 1/10 s.

IPC Classes  ?

• H05B 47/155 - Coordinated control of two or more light sources
• H05B 45/10 - Controlling the intensity of the light
• H05B 45/325 - Pulse-width modulation [PWM]
• H05B 45/327 - Burst dimming

Abstract

A computer-implemented method for quantifying a mental state, the method comprising: collecting, as a first training data subset, at least one pair of biosignals, wherein each biosignal is related to an intensity of a mental state of one or more persons; receiving, as a second training data subset, at least one annotation indicative of which biosignal of the pair of biosignals is related to a higher intensity of the mental state; training the artificial neural network on a training dataset comprising the first and second training data subsets to predict values of intensities of mental states; receiving a production dataset input comprising at least one production biosignal related to an intensity of the mental state as an input dataset; and processing the production input dataset by the artificial neural network to predict a value of an intensity of the mental state related to the production biosignal.

IPC Classes  ?

• A61B 5/18 - Devices for psychotechnics; Testing reaction times for vehicle drivers
• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
• A61B 5/16 - Devices for psychotechnics; Testing reaction times
• G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment

Abstract

An audio system for controlling and modifying an audio signal in a room having selectively reconfigurable architecture is disclosed. The audio system comprises a plurality of speakers mounted to an architecture configuration having one or more movable room-defining components and a control system in electronic communication with the plurality of speakers and the one or more movable room-defining components. An audio system for controlling and modifying an audio signal in a room having selectively reconfigurable architecture is disclosed. The audio system comprises a plurality of speakers mounted to an architecture configuration having one or more movable room-defining components and a control system in electronic communication with the plurality of speakers and the one or more movable room-defining components. The control system is configured to adjust one or more tuning parameters of one or more of the plurality of speakers based a position of the one or more movable room-defining components.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 3/14 - Cross-over networks
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/04 - Circuit arrangements

Abstract

An electronic system and method of identifying and discarding messages from irrelevant targets at an early stage of a message processing flow to reduce messages for further transmitting and processing. The system is configured to receive, by a first vehicle computing device at a first geographic location, a message from a second vehicle computing device, decode a portion of the message to determine a second geographic location of the second vehicle computing device, identify a type of safety application applied by the first vehicle computing device, classify the message based at least in part on the type of the safety application, the first geographic location, and the second geographic location, and determine, based on classifying the message, whether to discard the message or forward the message for processing to the safety application. The system is further configured to filter the message based on a filter table.

IPC Classes  ?

• G08G 1/16 - Anti-collision systems
• G08G 1/01 - Detecting movement of traffic to be counted or controlled
• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

A speaker and an electronic device are disclosed. The speaker comprises: a magnet assembly defining a magnetic gap; a frame fixedly attached to the magnet assembly; a vibration assembly, comprising a diaphragm and a voice coil, the voice coil being attached to the diaphragm and being configured to vibrate with the diaphragm, the voice coil having a coil portion that is at least partially suspended in the magnetic gap, and a vibration supporting member disposed between the vibration assembly and the frame and connecting the vibration assembly to the frame, wherein the vibration member is formed with conductors which are electrically connected to the coil portion of the voice coil. The electronic device comprises one or more speakers.

IPC Classes  ?

• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 9/04 - Construction, mounting, or centering of coil

Abstract

A diaphragm assembly, speaker and portable electronic device are provided. The diaphragm assembly comprises: a diaphragm body, comprising an outer connection portion, an inner diaphragm portion and a folding ring portion which is between and is connected to the outer connection portion and the inner diaphragm portion; and a dome body attached to the inner diaphragm portion of the diaphragm body, wherein the inner diaphragm portion has a center opening so that the inner diaphragm portion is attached to the dome body at a peripheral portion of the dome body. The speaker comprising: a magnet assembly defining a magnetic gap; a diaphragm assembly, the outer connection portion of the diaphragm assembly is fixed relative to the magnet assembly; a voice coil connected to the diaphragm assembly, the voice coil having a portion that is suspended in the magnetic gap. The portable electronic device comprises one or more speakers.

IPC Classes  ?

• H04R 7/04 - Plane diaphragms
• H04R 7/10 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
• H04R 7/12 - Non-planar diaphragms or cones

Abstract

The present disclosure relates to an impedance adaptation circuit, an audio processing apparatus and an in-vehicle infotainment system. The impedance adaptation circuit is used for being connected between a head unit and an audio processing circuit, wherein the impedance adaptation circuit includes an adaptation resistor and a switching element; a first end of the adaptation resistor is connected to a first audio output end of the head unit and a first audio input end of the audio processing circuit; a second end of the adaptation resistor is connected to a first end of the switching element; a second end of the switching element is connected to a second audio output end of the head unit and a second audio input end of the audio processing circuit; the adaptation resistor has a resistance value within a matched working impedance range of the head unit.

IPC Classes  ?

• H03F 1/56 - Modifications of input or output impedances, not otherwise provided for
• H03F 1/30 - Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
• H03F 3/181 - Low-frequency amplifiers, e.g. audio preamplifiers
• H04R 3/00 - Circuits for transducers

Abstract

The disclosure relates to a method and system for selecting one or more heart interbeat interval, IBI, signals. The method comprises capturing a sequence of individual heart IBI signals using one or more sensors; comparing the value of a first parameter of one of the individual heart IBI signals with a predetermined first threshold; determining the value of a second parameter from one or more or all of the individual heart IBI signals of the sequence; comparing the value of the second parameter of the one individual heart IBI signal with the value of the second parameter determined from one or more or all of the individual heart IBI signals of the sequence; and selecting the one individual heart IBI signal based on the comparisons. The system and method may be used in non-ideal, non-medial environment such as the cabin of a car.

IPC Classes  ?

• A61B 5/352 - Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

Abstract

A charging device for wearable device and a wearable device assembly are provided. The charging device comprises: a power source; a DC-DC converter electrically connected to the power source, and adapted to receive input from the power source and provide a voltage output; a controller that is in communication with the DC-DC converter; a linear charger electrically connected to the DC-DC converter and adapted to receive the voltage output from the DC-DC converter and provide a voltage output to charge a battery in the wearable device via a power connection between the charging device and the wearable device. The wearable device assembly comprises: a charging device; a wearable device comprising a battery, wherein the charging device is adapted to charge the battery of the wearable device via a power connection between the charging device and the wearable device.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
• H04R 1/10 - Earpieces; Attachments therefor

Abstract

In at least one embodiment, a loudspeaker system is provided. The at least loudspeaker system includes one loudspeaker comprising, an amplifier, and at least one controller. The at least one loudspeaker system transmits an audio output signal. The amplifier transmits a driving signal to the loudspeaker to transmit the audio output signal in response to a first audio signal. The controller includes a parameter estimation block that generates loudspeaker system parameters and a feed-forward processing block that models the loudspeaker system to provide the first audio signal to the amplifier based on modeled loudspeaker system parameters. The controller includes an adaption switch that controls the parameter estimation block based on at least one of a measured characteristic of the driving signal provided by the amplifier and a measured response associated with at least one characteristic of the at least one loudspeaker.

IPC Classes  ?

• H04R 3/00 - Circuits for transducers
• H04R 29/00 - Monitoring arrangements; Testing arrangements

Abstract

A method and system for generating frames for a DVS is disclosed. The method comprises: receiving DVS pixels of an object from a DVS; initializing a timespan to a timespan value; generating a frame by integrating DVS pixels captured within a timespan; evaluating a moving speed of the object; combining a plurality of consecutive frames into one combined frame when the evaluated moving speed is lower than a first threshold value. The system comprises a DVS configured to capture DVS pixels of an object; and a processor configured to receive the DVS pixels from the DVS and performed the method.

IPC Classes  ?

• H04N 25/47 - Image sensors with pixel address output; Event-driven image sensors; Selection of pixels to be read out based on image data
• H04N 5/265 - Mixing
• H04N 23/81 - Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation

Abstract

Embodiments of the present disclosure set forth techniques for managing memory partitions in a computing system. The techniques include generating a first entry for a first partition table associated with a first instance of a software application, wherein the first entry is associated with a first memory partition that includes a first memory extent; determining that a first data block referenced by the first memory partition is shared with a second instance of the software application; and generating a second entry for a second partition table associated with a second instance of the software application, wherein the second entry is associated with the first memory partition that includes the first memory extent. As a result, the two partition tables have identical mapping allowing switching between partition tables.

IPC Classes  ?

• G06F 3/06 - Digital input from, or digital output to, record carriers
• G06F 8/65 - Updates

Abstract

A loudspeaker protection system includes a loudspeaker having a driver and either a passive radiator or a vent port, and a controller to determine at least one of a displacement of the driver, a displacement of the passive radiator, and a velocity of airflow through the vent port based on an input voltage representing an audible sound, and to determine an output voltage for the loudspeaker to reproduce the audible sound based on a single type of compression applied to both the driver displacement and either the passive radiator displacement or the vent port airflow velocity. The output voltage provided to the loudspeaker limits the driver displacement within a driver displacement range and simultaneously limits the passive radiator displacement within a passive radiator displacement range or the vent port airflow velocity within an airflow velocity range to mechanically protect the loudspeaker and reduce distortion of the audible sound reproduced.

IPC Classes  ?

• H04R 19/01 - Electrostatic transducers characterised by the use of electrets

Abstract

Audio scene analysis based on audio content type identification include receiving audio data; segmenting the audio data into a plurality of audio frames; extracting one or more audio features from the plurality of audio frames; classifying each of the plurality of audio frames to generate audio classification predictions for the plurality of audio frames based on the one or more features; determining an audio type for a current audio frame of the plurality of audio frames based on the audio classification predictions for the plurality of audio frames within a context window; determining one or more audio settings based on the audio type; processing the audio data for the current audio frame using the one or more audio settings; and outputting the processed audio data using one or more loudspeakers.

IPC Classes  ?

• G10L 25/27 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• G06F 3/16 - Sound input; Sound output
• G10L 25/03 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters
• G10L 25/45 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of analysis window
• G10L 25/81 - Detection of presence or absence of voice signals for discriminating voice from music
• H04R 3/00 - Circuits for transducers
• H04R 5/04 - Circuit arrangements

Abstract

The disclosure herein pertains to determining high occupancy vehicle (HOV) lane eligibility of a vehicle and position of the vehicle with respect to an HOV lane. A method for an on board unit (OBU) of a vehicle may include receiving a traveler information message (TIM) from a roadside unit (RSU), the TIM having a payload including codes indicating lane parameters and HOV criteria of an HOV lane. The OBU determines whether or not the vehicle is HOV lane-eligible and whether or not the vehicle is in the HOV lane, and outputs a corresponding notification.

IPC Classes  ?

• B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
• B60W 30/18 - Propelling the vehicle
• B60W 40/04 - Traffic conditions
• H04W 4/44 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Abstract

A loudspeaker protection system includes a driver and either a passive radiator or a vent port, and a controller configured to determine a displacement of the driver and either a displacement of the passive radiator or a velocity of airflow through the port based on an input voltage representing an audible sound, and to determine an output voltage for the loudspeaker to reproduce the audible sound based on a first type of compression applied to the driver displacement and a second type of compression applied to either the passive radiator displacement or the vent port airflow velocity. The output voltage limits the driver displacement within a driver displacement range and simultaneously limits either the passive radiator displacement within a passive radiator displacement range or the vent port airflow velocity within a vent port airflow velocity range to mechanically protect the loudspeaker and reduce distortions in the audible sound reproduced.

IPC Classes  ?

• H04R 1/00 - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS - Details of transducers

Abstract

A system and method for generating low latency sound zones in a listening space utilizing only headrest speaker(s) within a predetermined distance of each sound zone. The audio signals are processed by a processing module connected to the headrest loudspeakers to generate audio for the headrest loudspeakers that is greater than or equal to 300 Hz, reducing the processing load and limiting latency to 5 msec.

IPC Classes  ?

• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 5/04 - Circuit arrangements
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

Yes A keyword spotting method based on a neural network (NN) acoustic model is provided to tolerate for dynamically adding and deleting keywords by remapping new keywords as individual Acoustic Model Sequences. The method compares sequence matching in the phoneme spaces instead of directly in predetermined acoustic space. Therefore, the acoustic model cross comparison model is relaxed from global optimization to local minimum distance to each distribution.

IPC Classes  ?

• G10L 15/16 - Speech classification or search using artificial neural networks
• G10L 15/06 - Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
• G10L 15/08 - Speech classification or search
• G10L 25/18 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
• G10L 25/24 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being the cepstrum
• G10L 25/78 - Detection of presence or absence of voice signals

Abstract

A method includes storing, by a microcontroller, cache data of the microcontroller into a dynamic random-access memory (DRAM) in response to the microcontroller receiving a power-off command. The method includes operating, by a DRAM controller, the DRAM in a standby state in response to the microcontroller storing the cache data into the DRAM. The method includes determining, by the DRAM controller and when the DRAM is operating in the standby state, a time characteristic associated with the DRAM, a charge characteristic associated with the DRAM, or a combination thereof. The method includes determining, by the DRAM controller, whether a suspend to storage condition is satisfied based on the time characteristic, the charge characteristic, or the combination thereof. The method includes storing, by the DRAM controller, the cache data of the DRAM into a read-only memory (ROM) in response to the suspend to storage condition being satisfied.

IPC Classes  ?

• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric

Abstract

A fixture (100) and a method for mounting a plurality of light panels onto a surface is provided. The plurality of light panels have multiple different polygonal shapes that may be assembled to form an assembled light panel having a larger area, each of the plurality of light panels having a light panel body of a polygonal shape and a mounting plate detachably connected to the light panel body. The fixture (100) comprises one or more aligning sides (142, 146, 148) and a plurality of openings (112, 122, 132), each opening is sized and shaped to receive a respective mounting plate of a light panel therein, the position of each opening in relation to at least one aligning side of the fixture is the same as or corresponds to the position of the respective mounting plate in relation to at least one side of the light plate to which it is connected.

IPC Classes  ?

• F21S 2/00 - Systems of lighting devices, not provided for in main groups  or , e.g. of modular construction
• F21S 8/00 - Lighting devices intended for fixed installation
• F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
• F21V 21/005 - Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks

Abstract

In at least one embodiment, an active noise cancellation (ANC) system is provided. The ANC system includes at least one loudspeaker, at least one microphone and at least one controller. The at least one loudspeaker projects anti-noise sound within a cabin of a vehicle based at least on an anti-noise signal. The at least one microphone provides an error signal indicative of noise and the anti-noise sound within the cabin. The at least one controller is programmed to receive the error signal and a reference signal indicative of a gear shift that occurs over a predetermined time interval and to adapt at least one adaptive filter with pre-stored filter coefficients for the predetermined time interval to generate the anti-noise signal based at least on the error signal and the reference signal.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

An active noise cancellation (ANC) system is provided with at least one loudspeaker to project anti-noise sound within a passenger cabin of a vehicle in response to receiving an anti-noise signal and at least one microphone to provide an error signal indicative of noise and the anti-noise sound within the passenger cabin. An adaptive filter controller is programmed to filter the error signal to obtain a noise reduction ratio, and to adjust a step size and/or leakage parameter based on a comparison of the noise reduction ratio to a noise threshold. A controllable filter generates the anti-noise signal based on the adjusted step size and/or leakage parameter.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

A computer-implemented method for determining a scoring indicative of a sound quality of an audio system, the method comprising: sending at least one test signal to at least one reference audio system; measuring a first frequency response of the reference audio system to the test signal; receiving at least one reference scoring indicative of a sound quality of the reference audio system; supplying a training dataset comprising the first frequency response and the reference scoring to an artificial neural network; training the artificial neural network on the training dataset to predict a scoring for the audio system; sending at least one test signal to at least one production audio system; measuring a second frequency response of the production audio system; and processing an input dataset comprising the second frequency response by the artificial neural network to predict a scoring indicative of a sound quality of the production audio system.

IPC Classes  ?

• H04R 29/00 - Monitoring arrangements; Testing arrangements
• G06N 3/084 - Backpropagation, e.g. using gradient descent

Abstract

Described embodiments include an audio speaker configured to emit sound in a main sound emission direction. The audio speaker comprises a voice coil, a movable diaphragm connected to the voice coil and configured to move together with the voice coil, the movable diaphragm comprising, in a direction opposite the main sound emission direction, a front surface and a rear surface opposite the front surface. The audio speaker further comprises a light source configured to emit light which is located, in a direction of the main sound emission direction, below the voice coil, and a light guide configured to guide the light emitted from the light source to the front surface of the movable diaphragm.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• F21S 10/00 - Lighting devices or systems producing a varying lighting effect
• F21S 10/02 - Lighting devices or systems producing a varying lighting effect changing colours
• F21V 14/08 - Controlling the distribution of the light emitted by adjustment of elements by movement of screens
• F21V 29/10 - Arrangement of heat-generating components to reduce thermal damage, e.g. by distancing heat-generating components from other components to be protected
• F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
• H04R 9/04 - Construction, mounting, or centering of coil

Abstract

A method and system of automatic audio calibration for an audio system in a room. The method uses a camera to capture videos of the room. The method further uses a processor to retrieve environment information and listener information from the videos; estimate environment influence in a sound field at the listener based on the environment information and the listener information; and generate a compensating filter for the audio system to compensate for the estimated environment influence.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

A method, apparatus and computer-readable storage medium for determining a region of interest (ROI) of a scene are provided. The method comprises steps of: a) determining a first region based on a first image of the scene; b) acquiring a second image of the scene; c) calculating a heat map of the second image and determining a target region in the heat map; d) repeating steps b) -c) at a first frequency and shrinking the first region in response to the target regions of M consecutive second images being all inside the first region and differences between the target regions of the M consecutive second images and the first region being all greater than a first threshold; and e) determining the first region as the ROI of the scene in response to differences between the target regions of N consecutive second images and the first region being all equal to or smaller than the first threshold.

IPC Classes  ?

• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
• G06V 20/52 - Surveillance or monitoring of activities, e.g. for recognising suspicious objects

Abstract

A method includes determining a plurality of target device distances between a plurality of vehicle sensor nodes of a vehicle and the target device, identifying a reference target device distance from among the plurality of target device distances based on a magnitude of the plurality of target device distances, and determining a threshold comparison distance based on the reference target device distance, a reference intranode distance, and a predetermined error distance. The method includes assigning the plurality of vehicle sensor nodes to one of a reflecting vehicle sensor node set and a non-reflecting vehicle sensor node set based on a comparison between the threshold comparison distance and the plurality of target device distances and determining a positional characteristic of the target device based on one or more target device distances associated with one or more vehicle sensor nodes from among the non-reflecting vehicle sensor node set.

IPC Classes  ?

• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
• G01S 5/14 - Determining absolute distances from a plurality of spaced points of known location

Abstract

A speaker system includes a speaker and a mounting bracket. The mounting bracket includes a cleat and a clamp. The cleat is configured to be mounted to the speaker in a plurality of mounting positions. The clamp slidably engages the cleat among a plurality of positions. The clamp includes end portions and a connecting portion. The end portions are spaced apart from each other and engage the cleat. The connecting portion is disposed between the end portions and is configured to receive a support bar.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein

Abstract

According to one aspect of the present disclosure, there is provided a computer-implemented method for detecting human functional states, the method comprising: obtaining one or more signals from one or more sensors, wherein the signals are representative of a plurality of physiological parameters of the user; determining a plurality of conditions associated with the user based on values of the physiological parameters; determining a functional state of the user based on the conditions; and generating an output signal to indicate the functional state of the user.

IPC Classes  ?

• A61B 5/18 - Devices for psychotechnics; Testing reaction times for vehicle drivers
• A61B 5/16 - Devices for psychotechnics; Testing reaction times
• A61B 5/0205 - Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

Abstract

A mounting structure includes base wall formed of a thermally conductive material and configured to provide a thermally conductive pathway between an electronic device mounted to an inner side of the base wall and a panel in contact with an outer side of the base wall that is opposite the inner side. The outer side includes a plurality of bumps configured to engage the panel. The base wall includes a plurality of tabs. Each tab configured to receive a corresponding fastener to secure the base wall to the panel.

IPC Classes  ?

• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A loudspeaker assembly is provided with a housing with an opening formed through and arranged about an axis. A transducer is mounted to the housing to project sound through the opening. At least one gate is mounted for adjustment relative to the axis between a closed position and an open position, wherein a distal end of the at least one gate extends over a portion of the opening in the closed position. Wherein the distal end of the at least one gate retracts along the housing in the open position to facilitate the sound projecting through the opening. An actuator is coupled to the at least one gate to adjust the at least one gate between the closed position and the open position.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
• H04R 29/00 - Monitoring arrangements; Testing arrangements
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
• H04R 3/00 - Circuits for transducers

Abstract

According to an aspect of the present disclosure, there is provided an in-vehicle system including: one or more loudspeakers; one or more illumination devices associated with the loudspeakers; and a controller to control the illumination devices and/or the loudspeakers, wherein the illumination devices and/or the loudspeakers are controllable to provide a set of functions, wherein the controller is operable in at least first and second mode of operations, wherein in the first mode of operation, the controller is configured to control the illumination devices and/or the loudspeakers to provide only a subset of said functions, and wherein in the second mode of operation, the controller is configured to control the illumination devices and/or the loudspeakers to provide the full set of said functions.

IPC Classes  ?

• G06F 3/16 - Sound input; Sound output
• B60K 35/00 - Arrangement or adaptations of instruments
• B60K 35/10 - Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor

Abstract

In at least one embodiment, an active noise cancellation (ANC) system is provided. The ANC system includes at least one loudspeaker, at least one microphone, and a reference generator. The at least one loudspeaker projects anti-noise sound within a cabin of a vehicle based at least on an estimated reference signal and an anti-noise signal. The at least one microphone to provide a first error signal indicative of noise and the anti-noise sound within the cabin. The at least one filter controller programmed to receive the first error signal and the estimated reference signal; and to control at least one adaptive filter to generate the anti-noise signal based at least on the first error signal and the estimated reference signal. The reference generator is programmed to generate the estimated reference signal based at least on one of vehicle speed, temperature of a tire of the vehicle, or tire pressure.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

Systems and methods are provided for personalized three-dimensional audio. In one embodiment, a sound calibration system comprises a headrest having a first speaker, a second speaker, and one or more sensors, the headrest configured to engage a head of a user, and a controller with computer readable instructions stored on non-transitory memory. The instructions, when executed, cause the controller to create customized spatial audio by utilizing a head-related impulse response (HRIR) that is modified based on an input audio signal, the location of the audio source and receiver, and the head position of the user. The resulting audio output is generated by applying the HRIR and interaural crosstalk cancellation filters to frequencies above a threshold frequency.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 1/02 - Casings; Cabinets; Mountings therein

Abstract

Techniques for managing content in a media system include a computer-implemented method for managing content in an audio system include, at a first computing device, generating a first list of content items, obtaining a second list of content items associated with a second computing device, generating a collaborative playlist based on the first list and the second list, and causing at least one content item included in the collaborative playlist to be output via one or more output devices.

IPC Classes  ?

• G06F 16/638 - Presentation of query results

Abstract

Systems and methods are disclosed for routing differential communication lines to different integrated circuits based on printed circuit board (PCB) unit variants. In one example, a system for routing signals comprises a location for mounting either a first resistor (208) or a second resistor (210) and another location for mounting either a third resistor (212) or fourth resistor (214), the location for receiving either the first resistor or the second resistor being shaped such that, when populated with the first resistor, the first resistor (208) is in a first orientation, and when populated with the second resistor, the second resistor (210) is in a second orientation perpendicular to the first orientation.

IPC Classes  ?

• H05K 1/02 - Printed circuits - Details

Abstract

A chessboard corner detection method on a camera image of the DVS-camera unified calibration board is provided. The method detects the multiple corners of the chessboard in the camera image by expanding the areas in color opposite to the binarized blob to eliminate the blob and separates the squares in the image, wherein the outer edge of the chessboard with the same color as the binarized spots needs to be filled with the opposite color in advance. Each corner can be marked then at the middle point of the line connecting the separated adjacent squares.

IPC Classes  ?

• G06T 7/13 - Edge detection
• G06T 3/40 - Scaling of a whole image or part thereof
• G06T 5/30 - Erosion or dilatation, e.g. thinning
• G06V 10/46 - Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features

Abstract

The disclosure provides a method, a system and an apparatus for auto-labeling dynamic vision sensor (DVS) frame. The method may comprise generating a pair of camera frames by a pair of cameras within an interval, and generating at least one DVS frame by a DVS within the interval. The method may further calculate a disparity frame based on the pair of camera frames, and obtain 3D information of the pair of camera frames based on the calculated disparity frame. The method may use a deep leaning model to determine an object area for auto-labeling, and may obtain 3D points based on the 3D information and the determined object area. And then, the method may re-project the 3D points towards the at least one DVS frame to generate re-projected points on the at least one DVS frame. The method may further generate at least one auto-labeled result on the at least one DVS frame by combining the re-projected points on the at least one DVS frame.

IPC Classes  ?

• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
• G06T 7/20 - Analysis of motion
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model

Abstract

In at least one embodiment, an active noise cancellation (ANC) system is provided. An audio signal source provides an audio signal. At least one loudspeaker projects anti-noise sound within a cabin. At least one microphone provides a first error signal indicative of the noise, the audio signal, and the anti-noise sound and a second error signal indicative of an estimated anti-noise signal. At least one controller is programmed to receive the first error signal and the second error signal and to provide an estimated impulse response based at least on the first error signal and the second error signal. The at least one controller is further programmed to compare the estimated impulse response to one or more pre-stored impulse responses; and to select a first pre-stored impulse response that matches the estimated impulse response to filter one or more reference signals at an adaptive filter to generate the anti-noise signal.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

A handsfree system and method to modify at least one microphone output based on a linearized correlation between a modified Speech Intelligibility Index (mSII) and a Mean Opinion Score (MOS). The at least one microphone output signal is compared to predetermined thresholds for the mSII that correspond to a noise condition and the microphone output signal is modified to optimize Speech Intelligibility and Sound Quality for the noise condition.

IPC Classes  ?

• G10L 21/0232 - Processing in the frequency domain
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 3/00 - Circuits for transducers
• G10L 21/0216 - Noise filtering characterised by the method used for estimating noise

Abstract

A system and method for estimating secondary path impulse response (IR) for an active noise cancellation (ANC) system to enhance performance of the ANC system in a near-imperceptible manner is provided. An adaptive music interference canceller (AMIC) uses music signals as test signals and ANC error microphones to estimate the secondary path IR between all speakers and microphones. The system validates that the music signals have sufficient audio content to be considered an adequate test signal. Furthermore, the system employs additional signal processing to ensure that a unique IR for all speakers and microphones can be obtained using the audio test signals. New coefficients of the AMIC filter are calculated, in real time, using the music signals and can be copied into the estimated secondary path for the ANC system. A supervisor unit manages enabling and disabling the AMIC as needed for calculating and copying coefficients.

IPC Classes  ?

• H04R 3/02 - Circuits for transducers for preventing acoustic reaction

Abstract

An earphone is provided. The earphone comprises a housing defining an audio opening, the audio opening is configured to be positioned within or facing toward an ear canal of a wearer in an wearing position of the earphone; a speaker driver positioned within the housing, the speaker driver comprising a diaphragm facing toward the audio opening, defining an audio channel between the diaphragm and the opening; a body temperature measuring module positioned within the audio channel, the body temperature measuring module comprising a reflector and a temperature sensor, the temperature sensor is configured to receive an infrared light transmitted through the audio opening and reflected by the reflector.

IPC Classes  ?

• G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
• G01J 5/04 - Casings
• G01J 5/0802 - Optical filters
• G01J 5/0808 - Convex mirrors
• H04R 1/10 - Earpieces; Attachments therefor

Abstract

A display system arranged on a vehicle pillar may include a flexible display arranged on a portion of a pillar of a vehicle, the display including a microLED display having a plurality of micron LED chips allowing the display to be flexible, and the display configured to receive and display images from at least one camera configured to acquire images from an exterior of the vehicle to provide a line of sight through the pillar via the display.

IPC Classes  ?

• B60K 35/00 - Arrangement or adaptations of instruments
• B60K 37/04 - Arrangement of fittings on dashboard
• B60R 1/00 - Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles

Abstract

Various embodiments disclose a computer-implemented method comprising determining a target location in an environment, determining a set of sub-band impulse responses for a first frequency sub-band, each in the set of sub-band impulse responses being associated with a location proximate to the target location, selecting a first pair of sub-band impulse responses for the first frequency sub-band among pairs within the set of sub-band impulse responses, computing a first coherence value indicating a coherence level between sub-band impulse responses in the first pair, determining that the first coherence value is below a coherence threshold, in response, combining the sub-band impulse responses using a non-linear interpolation technique to generate an estimated impulse response for the first frequency sub-band for the target location, generating, based on the estimated impulse response, a filter for a speaker, filtering an audio signal, and causing the speaker to output the filtered audio signal.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 3/04 - Circuits for transducers for correcting frequency response

Abstract

A microphone arrangement comprises a microphone comprising a microphone element, a housing and a cover, the housing and the cover cooperating with one another to surround the microphone element, and the cover comprising a first opening in order to enable the respective microphone element to detect sound. The microphone arrangement further comprises a frame defining an internal volume and comprising a third opening, and a motor configured to move the microphone from a first position to a second position and from the second position to the first position. When the microphone is in the first position, the first opening is arranged on a first side of the third opening and within the internal volume defined by the frame, and, when the microphone is in the second position, the first opening is arranged on a second side of the third opening and outside of the internal volume defined by the frame.

IPC Classes  ?

• H04R 1/08 - Mouthpieces; Attachments therefor
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/04 - Structural association of microphone with electric circuitry therefor
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

Various systems and methods are provided for monitoring state of charge (SOC) of wireless headphones. In one embodiment, a method comprises initializing a state of charge (SOC) of the earbud battery based on battery voltage in response to transitioning from a non-charging mode to a charging mode of the wireless earbud. In another embodiment, a first system comprises a left earbud, a right earbud, and a charging case comprising a microcontroller unit that monitors a right earbud battery and a left earbud battery via the charging case. In another embodiment, a second system comprises a left earbud, a right earbud, and a charging case comprising at least one communication bus communicatively coupled to the left earbud and right earbud to compare and correct a total charge of the left earbud battery, the right earbud battery, and/or the charging case battery.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
• H04R 1/10 - Earpieces; Attachments therefor

Abstract

Methods and systems of relieving stress for operators of vehicles are disclosed. In some embodiments, a set of inputs may be received from sensors after an operator begins operating a vehicle. The set of inputs may be processed to determine a stress level of the operator after vehicle operation begins. The stress level may be compared to a pre-determined stress level threshold. If the stress level is outside of the threshold and lower than the threshold, a first remediation measure may be implemented, and if the stress level is outside of the threshold and higher than the threshold, a different, second remediation measure may be implemented.

IPC Classes  ?

• A61B 5/18 - Devices for psychotechnics; Testing reaction times for vehicle drivers
• B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers

Abstract

Embodiments of the present disclosure set forth techniques for thermal management in a heads-up display. A picture generation unit includes a light source and a display unit positioned to receive light emitted by the light source, the display unit being configured to generate content for display when the light emitted by the light source is projected through the display unit. The picture generation unit also includes a display surface, the display surface being positioned between the light source and the display surface. The picture generation unit further includes a thermal bezel positioned on a side of the display surface opposite the display unit, the thermal bezel being positioned on one or more portions of the display surface through which the generated content is not projected, wherein the thermal bezel conducts heat away from the display surface.

IPC Classes  ?

• G02B 27/01 - Head-up displays

Abstract

Various systems and methods are provided for conducting acoustical measurements via an inflatable mannequin. In one embodiment, a system comprises an inflatable mannequin that comprises a detachable mannequin head, a plurality of inflatable anatomical parts, and a plurality of configurable joints, an inflation system that calibrates and controls inflation of the plurality of anatomical parts of the inflatable mannequin; and a joint control system that calibrates and controls the plurality of configurable joints via joint motors. In another embodiment, a first method comprises selecting a mannequin profile based on sizes of anatomical parts of the inflatable mannequin and second method comprises conducting acoustical measurements with the selected mannequin profile. In this way, acoustical measurements may be conducted to develop audio processing schemes that widen the sweet spot in an interior of a vehicle.

IPC Classes  ?

• G09B 23/14 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for physics for acoustics
• G10L 19/02 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
• H04R 1/08 - Mouthpieces; Attachments therefor
• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
• H04R 3/00 - Circuits for transducers

Abstract

Embodiments of the present disclosure set forth techniques for displaying content in a projection display system. A computer-implemented method includes receiving data associated with a vehicle; generating, based on the received data, content for display on a projection surface comprising a partially absorptive portion and a transparent portion, wherein the partially absorptive portion is located along one or more border regions of the projection surface and the transparent portion is located in a central region of the projection surface; and projecting the content onto the partially absorptive portion of the projection surface.

IPC Classes  ?

• G02B 27/01 - Head-up displays

Abstract

Methods and systems are provided for vehicle communications for vehicle aid requests. In one or more embodiments, a method includes monitoring a vehicle for a triggering event, and responsive to detection of the triggering event, generating, via a Vehicle-to-Everything (V2X) communication module of the vehicle, a Basic Safety Message (BSM) in accordance with SAE Surface Vehicle Standard J2735 including a vehicle aid request signature.

IPC Classes  ?

• G07C 5/00 - Registering or indicating the working of vehicles
• G08G 1/00 - Traffic control systems for road vehicles

Abstract

A first vehicle-to-everything (V2X) device may operate in compliance with a first regional standard governing V2X Basic Safety Messages (BSMs) for a first geographical region, and a second V2X device may operate in compliance with a second regional standard governing V2X BSMs for a second geographical region. When the first V2X device is operating within the second geographical region, it may generate “global BSMs” in accordance with a multi-regional standard governing V2X BSMs. The second V2X device may process global BSMs generated by the first V2X device and may respond by generating its own global BSMs.

IPC Classes  ?

• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
• G01C 21/36 - Input/output arrangements for on-board computers

Abstract

Various embodiments disclose an enclosure for a speaker comprising a front end configured to mount a speaker cone included in a speaker driver, one or more side walls, wherein the one or more side walls define a cavity surrounding the speaker driver; and a back end, wherein: one or more resonators are attached to a portion of the back end or the one or more side walls, and the one or more resonators and the cavity combine to form an acoustic cavity that encloses a volume of air.

IPC Classes  ?

• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

The disclosure describes a method for a light assembly and the light assembly. The light assembly may include a plurality of light panels connected with one another and a controller connected to one of the plurality of light panels. The method may comprise discovering, by the plurality of light panels, a topology of the plurality of light panels in the light assembly to derive a topology information table; deriving, by the controller, a vertex information table based on the topology information table received from a downstream panel and an orientation of the light assembly, wherein the downstream panel is the one light panel connected to the controller; calculating light effect data for each vertex of each light panel, by each light panel, based on the vertex information table, upon receiving a timing clock signal from the controller; and rendering light effect, by each light panel, based on the calculated light effect data for each vertex of each light panel.

IPC Classes  ?

• H05B 47/16 - Controlling the light source by timing means
• F21S 2/00 - Systems of lighting devices, not provided for in main groups  or , e.g. of modular construction
• H05B 47/105 - Controlling the light source in response to determined parameters
• H05B 47/155 - Coordinated control of two or more light sources

Abstract

A speaker assembly includes a basket including an opening having a rim and a flange extending downwardly from the rim, the flange including at least one rib extending circumferentially around an inner surface of the flange. A magnet includes at least one groove extending circumferentially around the magnet. The magnet is insert molded with the basket below the rim such that the at least one groove receives the at least one rib to mechanically couple the magnet to the basket.

IPC Classes  ?

• H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type - Details

Abstract

In at least one embodiment, a loudspeaker assembly including a first loudspeaker and a first acoustic lens is provided. The first loudspeaker is positioned on a first side of a headrest of a first vehicle seat for transmitting a first audio output toward one of a side pillar and a door of a vehicle. The first acoustic lens is coupled to the first loudspeaker and defining a first opening to enable the first audio output to pass from the first opening at a first predetermined angle. The first acoustic lens is positioned between the first loudspeaker and the one of the side pillar and the door of the vehicle.

IPC Classes  ?

• B60N 2/879 - Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers

Abstract

An audio system is provided with at least two low frequency transducers to project sound within a room and a portable device with at least two microphones to receive sound at the first listening location from multiple directions. A microcontroller is programmed to provide a calibration command in response to a user input, and to provide a measurement signal indicative of the sound received by the microphone array. A processor is programmed to provide a test signal in response to receiving the calibration command, wherein each low frequency transducer is adapted to generate a test sound in response to the test signal. The processor is further programmed to: process the measurement signal to predict a sound response at a second listening location adjacent to the first listening location, and adjust a sound setting associated with each low frequency transducer to optimize sound at the first and second listening locations.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

In at least one embodiment, a microphone assembly including a substrate, a printed circuit board (PCB), a micro-electro-mechanical systems (MEMS) transducer, a first lid, and a second lid is provided. The substrate defines a first port that extends completely therethrough. The PCB defines a sound opening that extends completely therethrough. The MEMS transducer is positioned on a first side of the substrate. The first lid defines a second port and covers the MEMS transducer and the first port. The first lid and the substrate define a front volume of air that surrounds the MEMS transducer. The second lid is positioned on the second side of the PCB. A cavity of the second lid, the sound opening of the PCB, the sound opening of the PCB, and the first port of the substrate define a back volume of air that is greater than the front volume of air.

IPC Classes  ?

• H04R 1/04 - Structural association of microphone with electric circuitry therefor
• B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• H04R 19/04 - Microphones

Abstract

Embodiments are disclosed for a compensating circuit for a boost circuit that outputs a voltage that is a function of a voltage signal. In one or more examples, the compensation circuit may include a gain that is adjustable in proportion to voltage output of the boost circuit and inversely proportionate to input current to the boost circuit.

IPC Classes  ?

• G11C 11/4074 - Power supply or voltage generation circuits, e.g. bias voltage generators, substrate voltage generators, back-up power, power control circuits
• G05F 1/67 - Regulating electric power to the maximum power available from a generator, e.g. from solar cell
• G11C 5/14 - Power supply arrangements
• H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load

Abstract

In at least one embodiment, a system for predicting a user's fit preference for an in-ear headphone is provided. The system includes an image detection device and at least one controller. The image detection device is programmed to capture at least one image of a user's ear. The at least one controller is programmed to detect one or more anatomical features on the least one image of the user's ear and to provide at least one selected in-ear headphone to the user based at least on the one or more anatomical features.

IPC Classes  ?

• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions

Abstract

A headphone system includes a calibration microphone for performing a calibration routine with a user. The calibration microphone receives a stimulus signal emitted by the headphone system and generates a response signal indicating variations in the stimulus signal that arise due to physiological attributes of the user. Based on the stimulus signal and the response signal, the calibration engine generates response data. The calibration engine processes the response data based on a headphone transfer function (HPTF) associated with the headphone system in order to create an inverse filter that can reduce or remove acoustic variations caused by the headphone system. The calibration engine generates a personalized HRTF for the user based on the response data and the inverse filter. The personalized HRTF can be used to implement highly accurate 3D audio and is thereby well-suited for applications to immersive audio and audio-visual entertainment.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

Computer-implemented method for determining a personalized head-related transfer function, the method comprising: receiving a training dataset comprising one or more training images of ears of one or more first users, a training input vector indicative of one or more first directions relative to the first user's head, and one or more values of the personalized head-related directional function related to the first users and the first directions; training an artificial neural network on the training dataset; receiving an inference dataset comprising an inference image of a second user's ear or a pair of inference images of the second user's ears, and an inference input vector indicative of a second direction relative to the second user's head; and processing the inference dataset by the artificial neural network to predict one or more personalized values of the directional function, the values related to the second user and the second direction.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

It is described a computer implemented method for generating a personalized sound signal transfer function, the method comprising: determining first data, wherein the first data represents a first sound signal transfer function, wherein the first sound signal transfer function is associated with a user's ear and with a first sound signal direction relative to the user's ear; determining, based on the first data, second data, wherein the second data represents a second sound signal transfer function, wherein the second sound signal transfer function is associated with the user's ear and with a second sound signal direction relative to the user's ear.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

There is described a computer implemented method for generating a personalized sound signal transfer function, the method comprising: receiving, by a sound receiving means, a sound signal at or in a user's ear; determining, based on the received sound signal, first data, wherein the first data represents a first sound signal transfer function associated with the user's ear; determining, based on the first data, second data, wherein the second data represents a second sound signal transfer function associated with the user's ear.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

Techniques for providing remote patient assistance when network connectivity is unavailable include receiving, from a provider-side side remote patient monitoring (RPM) platform, a healthcare plan assigned to a patient; and while disconnected from the provider-side RPM platform: monitoring the patient; in response to the monitoring, determining whether to provide the medical information to the patient; and presenting the medical information to the patient, wherein the medical information is based on the healthcare plan and the monitoring.

IPC Classes  ?

• G16H 40/67 - ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
• G16H 10/20 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data for electronic clinical trials or questionnaires

Abstract

An omnidirectional loudspeaker includes a lower horn member having a generally convex, upwardly-facing outer wall, an upper horn member spaced from the lower horn member and having a generally convex, downwardly-facing outer wall, and at least one compression driver connected to one of the lower or upper horn members along a central axis. The at least one compression driver includes a magnet assembly, a diaphragm operably connected to the magnet assembly, a phasing plug adjacent the diaphragm, and a compression chamber defined between the diaphragm and the phasing plug. The lower and upper horn members are coupled via the at least one compression driver in spaced relationship along the central axis to define a passageway for radiating sound waves generated by the compression driver in a generally horizontal 360° radiation pattern.

IPC Classes  ?

• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

Various embodiments disclose a computer-implemented method comprises receiving an auditory speech signal generated by a user, converting the auditory speech signal into a text segment, comparing the text segment to a set of stored intents, where each stored intent specifies one or more actions for a component of a vehicle to perform, and upon determining that the text segment corresponds to a first intent in the set of stored intents, retrieving the one or more actions associated with the first intent, and causing one or more corresponding components of the vehicle to perform actions specified by the one or more actions.

IPC Classes  ?

• B60W 50/10 - Interpretation of driver requests or demands
• G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog
• G10L 15/26 - Speech to text systems

Abstract

In at least one embodiment, a fully differential amplifier is provided. A first amplifying circuit receives a first input voltage signal and provides a first output voltage signal. A second amplifying circuit to receive a second voltage signal and to provide a second output voltage signal. A summing circuit to provide a common mode component of the first input voltage signal and the second input voltage signal. A compensation circuit to amplify the common mode component of the first input voltage signal and the second input voltage signal and output an injection signal. A common gain setting network including a plurality of resistors to receive the injection signal and to interface with the first amplifying circuit, the second amplifying circuit, and the compensation circuit to prevent the common mode component from being present in the first output voltage signal and the second output voltage signal.

IPC Classes  ?

• H03F 3/45 - Differential amplifiers
• H03F 1/34 - Negative-feedback-circuit arrangements with or without positive feedback

Abstract

An audio processing system may include at least one memory configured to maintain a plurality of audio signal processing algorithms and audio components, and a server having a processor. The processor may be configured to present an interface displaying at least a portion of the signal processing algorithms and audio components, receive user selection of at least one of the audio components, present the at least one selected audio component via the interface, receive user selection of at least one of signal processing algorithms to apply to the at least one selected audio component, apply the at least one selected algorithm to the at least one selected audio component, and provide a measurement of the at least one selected algorithm and the at least one selected audio component via the interface.

IPC Classes  ?

• G06F 3/16 - Sound input; Sound output
• G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
• G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• G11B 27/031 - Electronic editing of digitised analogue information signals, e.g. audio or video signals