Abstract

An estimation device (10) includes a data acquisition unit (131), a first smoothing processing unit (132), a second smoothing processing unit (133), a calculation unit (134), and an estimation unit (135). The data acquisition unit (131) acquires time-series data of a pupil diameter during work of a subject of work performance estimation. The first smoothing processing unit (132) smooths the acquired time-series data of the pupil diameter of the subject by a first time window. The second smoothing processing unit (133) smooths the time-series data of the pupil diameter by a second time window that is a time window larger than the first time window. The calculation unit (134) calculates a difference between the time-series data of the pupil diameter smoothed by the first time window and the time-series data of the pupil diameter smoothed by the second time window. The estimation unit (135) estimates the level of work performance of the subject on the basis of the calculated magnitude of the difference, and outputs a result of the estimation.

IPC Classes  ?

• G06Q 10/0639 - Performance analysis of employees; Performance analysis of enterprise or organisation operations
• G06T 7/254 - Analysis of motion involving subtraction of images
• G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume

Abstract

An object of the present disclosure is to make multipath technology applicable to UDP. An object of the present disclosure is to make multipath technology applicable to UDP. The present disclosure is a communication system in which a plurality of communication devices are connected via a plurality of networks, wherein one of the plurality of communication devices reads application data stored in a UDP payload, and stores information on a multipath option as a part of the application data, and the other one of the plurality of communication devices reads application data stored in a UDP payload, acquires information on a multipath option from the application data, and executes communication via the plurality of networks on the basis of the acquired information on the multipath option.

IPC Classes  ?

• H04L 45/24 - Multipath
• H04L 69/14 - Multichannel or multilink protocols
• H04L 69/164 - Adaptation or special uses of UDP protocol

Abstract

Provided is an acoustic system for a user who uses a seat of an aircraft, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including: a directivity control device including at least one directivity control unit that generates a first processed acoustic signal from a first acoustic signal and generates a second processed acoustic signal from a second acoustic signal having an opposite phase to the first acoustic signal by executing predetermined signal processing; and a speaker system including at least one speaker unit pair including a positive speaker unit that emits a sound based on the first processed acoustic signal and a negative speaker unit that emits a sound based on the second processed acoustic signal, in which the signal processing executed by the directivity control unit is processing of causing a sound emitted from the positive speaker unit of the speaker unit pair and a sound emitted from the negative speaker unit of the speaker unit pair to be audible in an area to be made audible near the speaker unit pair and to be inaudible in an area to be made inaudible.

IPC Classes  ?

• 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 5/02 - Spatial or constructional arrangements of loudspeakers

Abstract

A vibration measurement presentation plate (160) is a substantially transparent plate and is disposed on a use position side of a user. A display (130) is disposed outside of an imaging range of the camera on a side opposite to the use position side with respect to the plate such that the plate side serves as a display surface. A camera (120) is disposed on the opposite side with respect to the plate and is outside of the viewing range of the display surface of the display via the plate from the use position side so that the plate side is in the imaging range. A vibration measurement sensor (140) and a vibrator (150) are attached to the plate to be out of the imaging range of the camera and out of the viewing range of the display surface of the display via the plate from the use position side.

IPC Classes  ?

• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
• H04N 23/53 - Constructional details of electronic viewfinders, e.g. rotatable or detachable

Abstract

An information processing system includes: an acquisition unit configured to divide a target area into a plurality of meshes of a predetermined size, and acquire mesh data indicating the environment of the target area with height information about the plurality of meshes on a per-mesh basis; a first ray tracing unit configured to determine a two-dimensional ray trace from a transmission point to a reception point on the basis of the mesh data, a radio wave being transmitted at the transmission point, the radio wave being received at the reception point; a second ray tracing unit configured to determine a three-dimensional ray trace corresponding to the two-dimensional ray trace, on the basis of the mesh data, and height information about the transmission point and the reception point; and a radio field intensity calculation unit configured to calculate an intensity of the radio wave at the reception point, using one or more three-dimensional ray traces determined by the second ray tracing unit.

IPC Classes  ?

• G06T 15/06 - Ray-tracing
• G06T 15/50 - Lighting effects
• G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation

Abstract

A power control device includes a supply power prediction unit that determines excess or deficiency of a power supply state according to a power supply and demand situation for each server deployed in a data center that changes at least one of a total number of servers operating in the data center and a power setting of each server in operation so as to eliminate excess or deficiency of the power supply state. The power control unit further changes disposition on a server of a service program operating on each server depending on the power supply state.

IPC Classes  ?

• H04L 41/0833 - Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network energy consumption
• H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading

Abstract

A communication design support apparatus includes: a propagation model storage unit that stores a propagation model; an acquisition unit that acquires point cloud data of a structure and measurement data of radio wave intensities in a plurality of frequency bands; a parameter update unit that updates a parameter of the propagation model based on the acquired data; and an estimation unit that estimates propagation loss based on the propagation model.

IPC Classes  ?

• H04B 17/391 - Modelling the propagation channel
• H04B 17/309 - Measuring or estimating channel quality parameters

Abstract

In a data processing device, a fixed-point position control unit determines, as first control. The fixed-point position control unit causes a detection calculation unit to perform calculation processing on processing target data at a processing point in time. The saturation rate control unit instructs, as second control to be repeated by the fixed-point position control unit, the fixed-point position control unit to move at least the fixed-point position as control to increase a lower limit saturation rate proportional to a magnitude of a counted lower limit counter value with respect to a result of the first control. The fixed-point position control unit performs, as the second control, a predetermined determination on the basis of the instruction from the saturation rate control unit and the metadata, determines the fixed-point position moved for each layer, and causes calculation processing to be performed.

IPC Classes  ?

• G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means

Abstract

An object of the present disclosure is to perform appropriate communication quality control even when a terminal out of management of a controller is connected to an access point. An object of the present disclosure is to perform appropriate communication quality control even when a terminal out of management of a controller is connected to an access point. The present disclosure is a control system for controlling traffic of a wireless network, the control system including: a terminal and an access point that mutually transmit a packet via the wireless network; and a controller that performs transmission control with respect to the terminal and the access point, in which the controller notifies the access point of information of a terminal under management of the own device, and the access point collates information of the terminal a notification of which has been given with information of a terminal connected to the own device, and suppresses notification of transmission permission to an unmanaged terminal different from a terminal under management of the controller.

IPC Classes  ?

• H04W 28/12 - Flow control using signalling between network elements
• H04W 48/02 - Access restriction performed under specific conditions
• H04W 88/12 - Access point controller devices

Abstract

A transmission power controller includes: a control unit that outputs, within a range not exceeding a TPC set point, a TPC controlled variable that increases transmission power of a transmission system device more in a case of a larger attenuation of a reception signal received from a communication satellite; a data accumulation unit that accumulates the TPC controlled variable; an appropriate value extraction unit that extracts, as a TPC appropriate set point, the largest TPC controlled variable among the accumulated TPC controlled variables except a top predetermined proportion; and an updating unit that outputs, to the transmission system device, a reference transmission power increase signal that increases the reference transmission power more in a case of a larger difference between the TPC set point and the TPC appropriate set point and updates the TPC set point with the TPC appropriate set point. Thereby, efficient use of a transmitter is enabled.

IPC Classes  ?

• H04B 7/185 - Space-based or airborne stations
• H04W 84/06 - Airborne or Satellite Networks

Abstract

A field effect transistor includes a first etching stop structure and a second etching stop structure. The first etching stop structure is formed on a first side surface of a recess region that is a boundary between a cap layer on a side of a source electrode and the recess region. The second etching stop structure is formed on a second side surface of the recess region that is a boundary between the cap layer on a side of a drain electrode and the recess region.

IPC Classes  ?

• H01L 29/40 - Electrodes
• H01L 29/205 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds including two or more compounds in different semiconductor regions
• H01L 29/417 - Electrodes characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
• H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
• H01L 29/66 - Types of semiconductor device
• H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT

Abstract

An SIP server (21) of a receiving side service provider (21D) includes an SIP reception unit (52) that receives a call signal originated in a calling side terminal (11) for a receiving side terminal (31) as a transmission destination, an SIP processing unit (54) that determines that a warning signal is necessary in a case where a combination of a number conversion history of the call signal set by an SIP server (22) that has transferred the call signal by a transfer service involving number conversion and calling side information of the calling side terminal (11) set in the call signal meets a specific condition, and a call processing unit (53) that transmits the warning signal to the receiving side terminal (31) before transmitting the call signal to the receiving side terminal (31) according to the determination of the SIP processing unit (54).

IPC Classes  ?

• H04M 3/436 - Arrangements for screening incoming calls
• G10L 15/08 - Speech classification or search
• H04M 1/663 - Preventing unauthorised calls to a telephone set

Abstract

An information processing device 1 includes a calculation unit 13 that calculates a degree of overlapping between a probability distribution of each probability value included in a row i or a column i of a semantic similarity matrix, and a probability distribution of respective probability values included in a row j or a column j (j≠i) of the waveform similarity matrix as a degree of unexpectedness between an i-th word and a j-th word using the semantic similarity matrix in which elements are probability values in one row or one column of a semantic similarity between words of a plurality of words and the waveform similarity matrix in which elements are probability values in one row or one column of a waveform similarity between time-series data of time-series data related to the words.

IPC Classes  ?

• G06F 17/18 - Complex mathematical operations for evaluating statistical data
• G06F 40/20 - Natural language analysis

Abstract

A delivery control device generates a recognition index on a notification space basis, the recognition index used to recognize the notification space, displays the recognition index in the notification space, and stores the recognition index in management information. The delivery control device instead stores an image characteristic extracted from a content to be displayed in the notification space as the recognition index in the management information. In this state, the delivery control device selects a notification space viewable on the augmented reality display terminal based on information on the position of the augmented reality display terminal held by a user and information on the position of the notification space and transmits the recognition index corresponding to the selected notification space and a notification content to the augmented reality display terminal. In response to the above, the augmented reality display terminal extracts the recognition index from the captured real-life video images and superposes the notification content in the position corresponding to the extracted recognition index in the real-life video images to generate and display augmented reality notification video images.

IPC Classes  ?

• G06T 19/00 - Manipulating 3D models or images for computer graphics

Abstract

An optical waveguide includes a cladding layer, a Si layer, a REO layer, and a cap layer. The REO layer is made of a single-crystal rare earth oxide, and is formed on the Si layer. The cap layer is formed on the REO layer. The cap layer may be made of a material transparent to light to be guided. The cap layer has a stripe shape extending in a direction in which light is guided.

IPC Classes  ?

• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

A lipid bimolecular membrane substrate 1A includes: a substrate 12 in which a microwell 20 opened on one surface is formed; a lipid bimolecular membrane 30 disposed on the substrate 12 so as to cover an opening of the microwell 20; and a sealing liquid 22 disposed between the substrate 12 and the lipid bimolecular membrane 30. The sealing liquid 22 contains an ionic liquid.

IPC Classes  ?

• G01N 33/487 - Physical analysis of biological material of liquid biological material

Abstract

An optical transmission system including an optical transmission device and an optical reception device that receives, via an optical transmission line, a signal transmitted from the optical transmission device, the optical transmission system including a transmission-mode selection unit that selects transmission mode information in descending order of priority out of transmission mode information, which is combinations of a plurality of parameters concerning transmission performance, the transmission mode information being a plurality of kinds of the transmission mode information common to the transmission performance of the optical transmission device and the optical reception device, a signal transmission unit that transmits, to the optical reception device, a signal modulated based on the selected transmission mode information, and a signal reception unit that receives the signal and modulates the received signal based on the transmission mode information selected by the transmission-mode selection unit.

IPC Classes  ?

• H04B 10/516 - Transmitters - Details of coding or modulation
• H04B 10/077 - Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
• H04J 14/06 - Polarisation multiplex systems

Abstract

A mixed acoustic signal including sound emitted from a plurality of sound sources and sound source video signals representing at least one video of the plurality of sound sources are received as inputs, and at least a separated signal including a signal representing a target sound emitted from one sound source represented by the video is acquired. However, at least the separated signal is acquired using properties of the sound source that affects sound emitted by the sound source acquired from the video and/or features of a structure used for the sound source to emit the sound.

IPC Classes  ?

• G10L 21/028 - Voice signal separating using properties of sound source
• G10L 15/06 - Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
• G10L 15/25 - Speech recognition using non-acoustical features using position of the lips, movement of the lips or face analysis

Abstract

A state estimation device includes an information acquisition unit acquiring at least one of (i) electrode acquisition information indicating an electromagnetic time series that is a time series of an electromagnetic quantity that is an electromagnetic force, field, or energy applied to an electrode from which a signal indicating a state of a heart of an estimation target is acquirable or (ii) environment information that is information on a time series of an environmental quantity that is an amount related to one or both of a state of motion of the estimation target and an environment in which the estimation target is present; and an estimation unit using at least one of the electrode acquisition information or the environment information to determine whether an electrode event, which is an abnormality in acquisition of a signal indicating the state of the heart of the estimation target by the electrode, has occurred.

IPC Classes  ?

• A61B 5/361 - Detecting fibrillation

Abstract

A word selection support device according to the present disclosure includes processing circuitry configured to derive, for each extracted unknown word that is a term that is extracted from a target corpus and is not registered in dictionary data, statistical information regarding the extracted unknown word in a plurality of corpuses including the target corpus, and calculate appropriateness as a registered unknown word possibility that is a possibility of an unknown word to be registered in the dictionary data for each of the extracted unknown word on the basis of the statistical information.

IPC Classes  ?

• G06F 40/295 - Named entity recognition
• G06F 40/157 - Transformation using dictionaries or tables

Abstract

A support device according to the present disclosure includes a label inference unit that infers inference labels that are labels corresponding to elements included in training data in which elements and correct labels corresponding to the elements are associated with each other using a model that is learned using the training data and infers labels corresponding to the elements, and an evaluation unit that generates training data confirmation screens including elements included in the training data, correct labels of the elements, and inference labels of the elements.

IPC Classes  ?

• G06N 20/00 - Machine learning

Abstract

A learning device (10) according to the present disclosure includes a data set division unit (11) as a training data processing unit and a divided data set learning unit (12) as a model learning unit. The data set division unit (11) divides a new training data set into a plurality of divided data sets on the basis of attribute information. After performing model learning processing using an existing model as a learning target model, the divided data set learning unit (12) creates a new model by repeating the model learning processing until all the divided data sets are learned using a learned model created by the model learning processing as a new learning target model.

IPC Classes  ?

• G06N 20/00 - Machine learning

Abstract

An information processing device that designs a Bayesian network includes: an input unit configured to input, as elements of a Bayesian network, information regarding a plurality of nodes, an edge indicating a causal relation between a master node and a slave node in the plurality of nodes, and a weight indicating the degree of influence of a definition content of the master node on a probability distribution of the slave node; and a generation unit configured to generate a Bayesian network using the input information.

IPC Classes  ?

• G06N 7/01 - Probabilistic graphical models, e.g. probabilistic networks

Abstract

A distributed circuit includes: a first transmission line that has an input end to which an input signal is input; a second transmission line that has an output end from which an output signal is output; a plurality of unit cells that are disposed along the first and second transmission lines, the input terminals of the unit cells being connected to the first transmission line, the output terminals of the unit cells being connected to the second transmission line; two input termination resistors connected in parallel to an end of the first transmission line; and two output termination resistors connected in parallel to an end of the second transmission line. In the distributed circuit, at least one input termination resistor is a temperature-gradient resistor, and voltages at the two input termination resistors are changed symmetrically.

IPC Classes  ?

• H03F 3/60 - Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators

Abstract

An object of the present disclosure is to provide a simple, compact optical switch with low power consumption. The present disclosure is an optical switch that includes: a first multi-core optical fiber having a plurality of cores on the same circumference from a central axis in a cross section perpendicular to a long axis direction; a first ferrule incorporating the first multi-core optical fiber; a second multi-core optical fiber in which cores are arranged at respective positions corresponding to the plurality of cores of the first multi-core optical fiber in a cross section perpendicular to the long axis direction; a second ferrule incorporating the second multi-core optical fiber and having an outer diameter equal to that of the first ferrule; a split sleeve for accommodating the first ferrule and the second ferrule in such a manner that the first ferrule and the second ferrule are opposed to each other on a central axis; a slit space adjustment jig for adjusting a space of a slit of the split sleeve; and a rotation mechanism for rotating one of the first ferrule and the second ferrule around the central axis.

IPC Classes  ?

• G02B 6/35 - Optical coupling means having switching means
• G02B 6/02 - Optical fibres with cladding
• G02B 6/38 - Mechanical coupling means having fibre to fibre mating means

Abstract

An orchestrator locates a server in anyone of a plurality of edge clouds on the basis of a plurality of delay differences, respectively corresponding to the plurality of the edge clouds having each delay difference and assumed if the server located in each of the edge clouds, that are each a difference between delay from the server to a first client and delay from the server to a second client, and gives a delay to at least one of the first client and the second client so that the delay from the located server to the first client and the delay from the located server to the second client become the same.

IPC Classes  ?

• H04L 67/101 - Server selection for load balancing based on network conditions

Abstract

To detect deterioration of an SOA and perform feedback control to keep light intensity of output light constant in a configuration in which a DFB laser, an EA modulator, and the SOA are monolithically integrated. A semiconductor optical integrated element includes: a DFB laser that outputs continuous light; an EA modulator that modulates the continuous light; a first multimode interference coupler that inputs the modulated light from a first input port, divides the modulated light, and outputs the divided modulated light from two or more output ports; semiconductor optical amplifiers that are connected to respective output ports of the first multimode interference coupler and amplify each of the divided modulated light; a second multimode interference coupler that has input ports connected to respective outputs of the semiconductor optical amplifiers, multiplexes the amplified modulated light, and outputs the multiplexed modulated light from a first output port; and a monitoring waveguide.

IPC Classes  ?

• H01S 5/0683 - Stabilisation of laser output parameters by monitoring the optical output parameters
• H01S 5/026 - Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers
• H01S 5/068 - Stabilisation of laser output parameters
• H01S 5/125 - Distributed Bragg reflector [DBR] lasers

Abstract

A classification device (10) acquires an operation log related to operation information, identifies each operation performed by a user using the operation log, and creates a vector of each operation on the basis of a co-occurrence relationship between the identified operations. Then, the classification device (10) calculates a similarity between a predetermined number of operations adjacent to each other in chronological order using the created vector of each operation, determines a division point of the operations using the calculated similarity, and divides a time-series operation into operation sets on the basis of the division point. Then, the classification device (10) classifies the operation sets into classes on the basis of the number of types of operations common to the operation sets.

IPC Classes  ?

• G06F 11/34 - Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation
• G06F 18/2431 - Multiple classes

Abstract

A key exchange system according to an embodiment includes: a plurality of terminals that perform key exchange; and a server that performs authentication of each of the terminals and mediation of the key exchange, in which the server includes a nonce generation unit that generates a nonce used when the authentication is performed between the server and the terminal by federation using OpenID Connect, a key generation unit that generates a public key and a secret key of token control encryption, a first transmission unit that transmits the nonce and the public key to the terminal, and a decryption unit that decrypts a ciphertext received from the terminal by using the secret key and a token received from the terminal, and the terminal includes an encryption unit that generates a ciphertext obtained by encrypting predetermined data by using the public key and a token generated from the nonce, a second transmission unit that transmits the ciphertext to the server, and a long-term secret string generation unit that generates a long-term secret string for use in the key exchange, by using the nonce.

IPC Classes  ?

• H04L 9/08 - Key distribution
• H04L 9/06 - Arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
• H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system

Abstract

A display control device (10) includes: a first acquisition unit (151a) configured to acquire information regarding an existing UI; an extraction unit (151b) configured to extract a rule set indicating relevance between the existing UI and an extended UI from a predetermined database based on the information regarding the existing UI acquired by the first acquisition unit (151a); a first generation unit (151c) configured to generate rule information of the extended UI based on the rule set extracted by the extraction unit (151b); and a setting unit (152) configured to set display of the extended UI based on the rule information of the extended UI generated by the first generation unit (151c).

IPC Classes  ?

• G06F 9/451 - Execution arrangements for user interfaces
• G06F 3/04847 - Interaction techniques to control parameter settings, e.g. interaction with sliders or dials

Abstract

A gas phase reduction device for carbon dioxide is a gas phase reduction device for carbon dioxide that exerts a catalytic function by light irradiation to generate oxidation-reduction reaction. The gas phase reduction device includes an oxidation tank in which an aqueous solution is put, a reduction tank to which carbon dioxide is supplied, a semiconductor photoelectrode installed in the aqueous solution, and a porous electrode-supported electrolyte membrane that is a joint body of an electrolyte membrane and a porous reduction electrode, the porous electrode-supported electrolyte membrane being installed between the oxidation tank and the reduction tank with the electrolyte membrane facing the oxidation tank and the porous reduction electrode facing the reduction tank. Voltage between a reference electrode installed in the aqueous solution and a reference electrode installed in contact with the electrolyte membrane is measured by a voltmeter, and a control unit increases voltage between the semiconductor photoelectrode and the porous reduction electrode in accordance with change in voltage between the reference electrodes from an initial value at start of reaction. The control unit includes a solar cell and a constant voltage power supply, and the solar cell is arranged on an extension line of a straight line from a light source toward the semiconductor photoelectrode, and generates power utilizing light emitted to and transmitted through the semiconductor photoelectrode.

IPC Classes  ?

• C25B 15/023 - Measuring, analysing or testing during electrolytic production
• C25B 3/03 - Acyclic or carbocyclic hydrocarbons
• C25B 3/07 - Oxygen containing compounds
• C25B 3/21 - Photoelectrolysis
• C25B 3/26 - Reduction of carbon dioxide
• C25B 9/19 - Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
• C25B 9/50 - Cells or assemblies of cells comprising photoelectrodes; Assemblies of constructional parts thereof
• C25B 11/049 - Photocatalysts

Abstract

An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a relay capable of forming a path for communication while avoiding an obstacle is selected from a plurality of relays. In this communication method, signals are transmitted and received by using optical wireless communication using a relay on the path.

IPC Classes  ?

• H04B 10/29 - Repeaters
• G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
• H04B 10/40 - Transceivers

Abstract

A capacitor includes a pair of facing stacked electrodes connected to an electrical wiring from the outside. The stacked electrode includes a plurality of wiring layers and a via layer between the wiring layers. The stacked electrode includes combs and a comb connection portion connected to base ends of the combs. A dielectric is provided between one stacked electrode and the other stacked electrode. The comb of the other stacked electrode is disposed between the combs of the one stacked electrode.

IPC Classes  ?

• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

A wireless communication system comprising a plurality of base station devices including a first base station device and a second base station device, wherein the first base station device connected with a terminal determines whether to continue connection with the terminal or not on a basis of a communication quality requirement of the terminal and a resource that can be provided to the terminal, and the first base station device transmits a control signal instructing connection with the second base station device to the terminal in a case where the first base station device determines not to continue the connection with the terminal.

IPC Classes  ?

• H04W 36/14 - Reselecting a network or an air interface
• H04W 36/30 - Reselection being triggered by specific parameters by measured or perceived connection quality data

Abstract

A sensor system includes a sensor terminal and a sensor accommodating terminal The sensor accommodating terminal includes a time stamp adding unit that acquires a time stamp of a reception time of a packet received from the sensor terminal, a memory that stores the time stamp and a time stamp interval, and a disconnection determination unit. The disconnection determination unit calculates a first variance of a plurality of time stamp intervals, calculates a second variance of the plurality of time stamp intervals newly obtained after calculation of the first variance, calculates a ratio of the second variance to the first variance as an evaluation value, and determines whether a reception interval of the packet is normal or abnormal by equal variance determination of the evaluation value.

IPC Classes  ?

• H04J 3/06 - Synchronising arrangements
• H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
• H04W 56/00 - Synchronisation arrangements

Abstract

An estimation device collects sensor data representing a change in a load along a time series as a change in a voltage value from a sensor that generates a voltage when a load applied to an area changes, and estimates a matter related to a measurement target passing through a predetermined area by using sensor data collected from the sensor installed in the predetermined area.

IPC Classes  ?

• G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
• G06N 20/00 - Machine learning

Abstract

Provided is an acoustic system for a user who uses a seat of an aircraft, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including a speaker system that includes at least one speaker unit pair including a positive speaker unit that emits a sound based on an acoustic signal of a predetermined sound source and a negative speaker unit that emits a sound based on an acoustic signal having an opposite phase to the acoustic signal, in which the speaker unit pair is configured such that a surface of the positive speaker unit and a surface of the negative speaker unit located foremost when viewed from a front direction are one plane perpendicular to a ground plane, and an arrangement of the positive speaker unit and the negative speaker unit when viewed from the front direction is parallel to a direction perpendicular to the ground plane, and is configured such that sounds emitted from the positive speaker unit and the negative speaker unit in a rear direction go around in the front direction.

IPC Classes  ?

• 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 5/02 - Spatial or constructional arrangements of loudspeakers

Abstract

A camera parameter estimating device includes an obtaining unit which obtains time series frames including a plurality of subject images existing in a common field of vision shared by multiple cameras for each of the cameras, a point estimating unit which estimates the coordinates of a joint point determined in the subject image in the time-series frame for each of the subject images, a motion trajectory estimating unit which estimates the trajectory of the joint point between the time-series frames for each of the cameras, an inter-camera correspondence estimating unit which estimates a group of the trajectories between the frames obtained respectively from a pair of the cameras, and a parameter estimating unit which estimates a camera parameter for each of the cameras according to the group of trajectories.

IPC Classes  ?

• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• G06T 7/215 - Motion-based segmentation
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 7/292 - Multi-camera tracking

Abstract

A conversion device analyzes information of an input packet using hardware and determines whether to perform predetermined previous stage processing using the hardware. Furthermore, when it is determined to perform the previous stage processing, the conversion device uses the hardware to provide metadata including identification information indicating a group of packets to the packets on the basis of the fixed-length header information of the packets. In addition, the conversion device uses software to generate analysis packets corresponding to the group of packets using the provided metadata.

IPC Classes  ?

• H04L 43/50 - Testing arrangements
• H04L 69/22 - Parsing or analysis of headers

Abstract

Provided is an interference control system for wireless communication suitable for limiting the total amount of interference given to an interfered device to be protected by a large number of interfering devices. An interference control system includes a subscriber database that stores information regarding a position of each interfering device. A registration application (5) including an ID of an interfering device disposed in a carrier network is received from the interfering device. The registration application is received and position information that matches information stored in the subscriber database regarding the ID is set (2), (3), and (6). The position information is transmitted to the control device for registration (6).

IPC Classes  ?

• H04W 16/14 - Spectrum sharing arrangements
• H04W 60/00 - Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration

Abstract

A graphic display control device comprising: a data acquisition unit that acquires an utterance content of a speaker as text data; a search information extraction unit that extracts search information to be used for searching, from the text data acquired by the data acquisition unit; a graphic selection unit that selects, from a database, a graphic corresponding to the search information extracted by the search information extraction unit; and an output function unit that performs processing for presenting the graphic selected by the graphic selection unit, on a graphic recording result.

IPC Classes  ?

• G06T 11/60 - Editing figures and text; Combining figures or text
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

Abstract

The present invention estimates intention of an utterance more accurately than the related arts. A learning device learns an estimation model on the basis of learning data including an acoustic signal for learning and a label indicating whether or not the acoustic signal has been uttered to a predetermined target. The learning device includes: a feature synchronization unit configured to obtain a post-synchronization feature by synchronizing an acoustic feature obtained from the acoustic signal for learning with a text feature corresponding to the acoustic signal; an utterance intention estimation unit configured to estimate whether or not the acoustic signal has been uttered to the predetermined target by using the post-synchronization feature; and a parameter update unit configured to update a parameter of the estimation model on the basis of the label included in the learning data and an estimation result by the utterance intention estimation unit.

IPC Classes  ?

• G10L 15/06 - Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice
• G10L 15/16 - Speech classification or search using artificial neural networks

Abstract

A stream information setting unit (108) sets, with respect to a plurality of information collection object apparatuses, either a first transmission setting of a first data transmission of which a transmission cycle is designated or a second transmission setting of a second data transmission which uses a predetermined transmission cycle. A telemetry data receiving unit (106) receives data from the information collection object apparatuses by the first data transmission executed according to the first transmission setting and the second data transmission executed according to the second transmission setting performed by the stream information setting unit (108). A measuring unit (103) measures a transmission time of data by the first data transmission. A comparing unit (104) determines whether or not the transmission time measured by the measuring unit (103) exceeds the designated transmission cycle. A cycle changing unit (105) extends a transmission cycle of the second data transmission when the comparing unit (104) determines that the transmission time exceeds the transmission cycle.

IPC Classes  ?

• H04L 43/16 - Threshold monitoring
• H04L 43/0852 - Delays

Abstract

An optical device includes a photonic crystal main unit, an optical waveguide, an active region, an active substance, and a light source. The active region is formed in the optical waveguide and accommodates the liquid active substance formed with a four-level light-emitting material. For example, an accommodating unit formed in the active region is provided, and the active substance is accommodated in the accommodating unit. The active substance can be formed with an aqueous solution of a dye such as rhodamine, for example.

IPC Classes  ?

• H01S 5/11 - Comprising a photonic bandgap structure
• H01S 5/024 - Arrangements for thermal management
• H01S 5/10 - Construction or shape of the optical resonator

Abstract

Provided is a server delay control device for a server in which an OS having a kernel is deployed. The OS includes: a ring buffer managed by the kernel; and a poll list in which information on a net device of a hardware interrupt from an NIC is registered. The server delay control device is deployed in the server and configured to receive a timer interrupt at predetermined specified intervals and monitors a packet arrival and includes: a packet arrival monitoring part configured to check the presence or absence of a packet in the poll list upon being triggered by the timer interrupt to monitor the poll list; and a packet dequeuer configured to, when a packet has arrived, reference the packet held in the ring buffer, and perform dequeuing to remove the corresponding queue entry from the ring buffer.

IPC Classes  ?

• H04L 47/56 - Queue scheduling implementing delay-aware scheduling

Abstract

A delay measurement device includes a NW measurement unit that measures a topology, a delay amount of each link, jitter, and a packet loss rate, and causes a NW state holding unit to hold them as NW state information, a link quality calculation unit that calculates the link quality between the end points as a weight on the basis of the NW state information including the topology, the delay amount of each link, the jitter, and the packet loss rate, and a path calculation function unit that calculates a measurement path on the basis of a weighted topology in which the weight of the link quality calculated by the link quality calculation unit is reflected in the topology. The NW measurement unit transmits a measurement packet to a start point and measures the delay amount of a measurement target section of a NW.

IPC Classes  ?

• H04L 43/087 - Jitter

Abstract

When a CRAM error detection unit (12c) detects a one-bit soft error of a CRAM (12b), a failure management unit (16) performs control for coping with a failure in a downstream side communication device (14) with an error notification (ER1) as a trigger. A failure detection sensitivity of a failure detection unit (15) is temporarily increased compared to a steady state. Or an upstream side communication device (11) retransmits an original communication signal (SG1). Or a known test signal is transmitted from the upstream side communication device (11) before retransmission, and the failure is diagnosed on the downstream side, and then the test signal is retransmitted. Alternatively, a signal is processed by two communication paths to select a signal without an error, and an erroneous signal is discarded. When a failure is detected, a device is restarted. It is possible to find a failure in an early stage to prevent a silent failure or to shorten a time until recovery of service or to suppress an occurrence of a failure by taking measures with the detection of a CRAM error as a trigger.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance

Abstract

A conversion device (10) analyzes an input packet and acquires header information included in the packet. Furthermore, the conversion device (10) classifies packets into one of a plurality of groups on the basis of the acquired header information and set grouping conditions. Subsequently, the conversion device (10) generates packets for analysis on the basis of the processing corresponding to the classified groups.

IPC Classes  ?

• H04L 43/18 - Protocol analysers
• H04L 41/0893 - Assignment of logical groups to network elements
• H04L 43/026 - Capturing of monitoring data using flow identification
• H04L 69/22 - Parsing or analysis of headers

Abstract

An estimation apparatus 10 is a signal processing apparatus for processing an acoustic signal and estimates an observation signal of a virtual microphone arranged virtually from an input observation signal of a real microphone using a deep learning model having a neural network (NN) 11.

IPC Classes  ?

• H04R 3/00 - Circuits for transducers
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

An information acquisition apparatus (100) includes an acquisition unit (121), a classification unit (122), a determination unit (123), and a registration unit (124). The acquisition unit (121) acquires tree information representing information of a system screen by a plurality of nodes having a tree structure. The classification unit (122) classifies the plurality of nodes having a tree structure into an operable component and a label component based on the tree information. The determination unit (123) determines whether the label component indicates a name of the operable component based on a distance between the operable component and the label component. The registration unit (124) registers a correspondence between a text corresponding to the label component and specifying information for specifying the operable component in a case where the determination unit (123) determines that the label component indicates a name of the operable component.

IPC Classes  ?

• G06F 40/14 - Tree-structured documents
• G06F 40/274 - Converting codes to words; Guess-ahead of partial word inputs

Abstract

An analysis device includes processing circuitry configured to acquire, from each network traffic sensor that monitors communication of an Internet of Things (IoT) device, a normal communication model that is used for monitoring the communication and indicates a characteristic of normal communication of the IoT device, cluster a normal communication model group of a same feature among acquired normal communication model groups, calculate a majority cluster that is a cluster having a largest number of normal communication models by using a result of the clustering, and calculate an average model of the normal communication model group belonging to the majority cluster, and notify the network traffic sensor serving as an acquisition source of the normal communication model of attribution information indicating whether or not the normal communication model belongs to the majority cluster and the average model.

IPC Classes  ?

• H04L 41/16 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using machine learning or artificial intelligence
• H04L 43/0876 - Network utilisation, e.g. volume of load or congestion level

Abstract

A setting changing apparatus includes a memory and a processor configured to determine whether software of a plurality of network devices, which are related to a redundant configuration, is being updated when an instruction of setting change for the plurality of network devices is input; and wait, when the software of any of the network devices is being updated, until the update of the software of the network device is completed and execute the setting change for the network device.

IPC Classes  ?

• H04L 41/0803 - Configuration setting
• G06F 8/65 - Updates

Abstract

An information processing device in a communication apparatus performs a management process of traffic flow management information for transfer of data including a plurality of frames from a transmission source terminal to a transmission destination terminal. Where new traffic flow management information of a traffic flow associated with a data frame identified by an identification unit on the basis of identification information included in the received data frame is recorded in the communication apparatus, a recording unit determines whether the number of pieces of traffic flow management information already recorded is equal to or more than a threshold value, and calculates and records a scheduled release time of the traffic flow management information according to a determination result.

IPC Classes  ?

• H04L 47/56 - Queue scheduling implementing delay-aware scheduling
• H04L 47/28 - Flow control; Congestion control in relation to timing considerations

Abstract

There is provided an acoustic system for a user who uses a seat of an airplane, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including a speaker system including one speaker unit that emits a sound based on an acoustic signal of a predetermined sound source, in which a sound emitted from the speaker unit is hearable in a region to be audible near the speaker unit, and by a sound emitted from the speaker unit in a back surface direction coming around to a front surface direction, the sound emitted from the speaker unit in the front surface direction and the sound emitted from the speaker unit in the back surface direction cancel each other in a region in the front surface direction far from the speaker unit.

IPC Classes  ?

• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

Provided is a social value evaluation device, including: a feature value generation unit configured to generate a feature value from text information on social value evaluation; an input unit configured to input text information on an evaluation target; an evaluation unit configured to evaluate a relevance between the feature value and the text information input by the input unit; and an output unit configured to output an evaluation result from the evaluation unit.

IPC Classes  ?

• G06Q 50/00 - Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
• G06F 40/40 - Processing or translation of natural language

Abstract

An object of the present invention is to provide a multicore non-reflective terminal portion having a small influence of reflected light on an optical transmission system and having a small number of parts, and an optical path testing method using the same. An object of the present invention is to provide a multicore non-reflective terminal portion having a small influence of reflected light on an optical transmission system and having a small number of parts, and an optical path testing method using the same. A multicore non-reflective terminal portion 70 according to the present invention includes: 2n (n is a natural number) optical fibers 71 each having a vertically polished end face on one end side and an angle-polished end face on the other end side, a 2n-core MT connector 72 that collects the 2n optical fibers 71 and is attached to the one end side of the optical fibers 71, and n-core MT connectors (73a, 73b) attached to the other end side of the optical fibers 71 for each of two groups of the 2n optical fibers 71.

IPC Classes  ?

• G02B 6/43 - Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections

Abstract

A resource allocation device includes: a request receiving unit that receives a request to allocate a state management unit for sharing a state for each group composed of a plurality of user terminals within a group, to any of a plurality of DCs deployed in a distributed cloud environment; and an allocation calculation unit that calculates an allocation cost of allocating the state management unit to each DC by using an allocation index corresponding to a requirement requested by the group, and determines a DC to which the state management unit is allocated, in accordance with the allocation cost.

IPC Classes  ?

• G06F 9/50 - Allocation of resources, e.g. of the central processing unit [CPU]

Abstract

An acoustic signal enhancement device includes: a spatiotemporal covariance matrix estimation unit 2 configured to estimate spatiotemporal covariance matrices Rf(j) and Pf(j); a reverberation suppression unit 3 configured to obtain a reverberation suppression filter Gf(j) of the sound source j using the estimated spatiotemporal covariance matrices Rf(j) and Pf(j) for each sound source j and to generate a reverberation suppression signal vector using the obtained reverberation suppression filter Gf(j) and the observation signal vector Xt,f; a sound source separation unit 4 configured to obtain an enhanced sound yt,f(j) of the sound source j and power of the sound source j using the generated reverberation suppression signal vector for each sound source j (where 1≤j≤J) corresponding to the target sound; and a control unit 5 configured to perform control such that processes of these units are repeatedly performed.

IPC Classes  ?

• G10L 21/0232 - Processing in the frequency domain

Abstract

The present invention has an object of providing an arithmetic apparatus, a facility management method, and a program that make it possible to acquire current tension applied to outdoor structures in a short period of time and make a bearing determination. The arithmetic apparatus according to the present invention calculates the dip degree of a cable and a distance between poles from the 3D model data of the cable according to Math. C1 and calculates the tension of each cable between the poles from the dip degree, the distance between the poles, and the weight of the cable per unit length according to Math. C2 (when no wind blows) or Math. C4 (when wind blows). Further, the arithmetic apparatus according to the present invention calculates a combined load obtained by converting the tension and the load of the accessory of the poles into an arbitrary position on the poles according to Math. C3.

IPC Classes  ?

• G01L 5/04 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
• H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables

Abstract

An object is to provide a communication system in which there are no restrictions on a communicable area and it is not necessary to install communication software on a wireless device. A communication system according to the present invention is configured so that the functions of a wireless access point are separated into a front-end unit on a wireless terminal side and a back-end side on the Internet side, radio signal processing functions supporting a wireless scheme of the wireless terminal are deployed only on the back end, and only relatively simple processing functions such as E/O conversion are deployed on the front end near the wireless terminal 311.

IPC Classes  ?

• H04W 72/20 - Control channels or signalling for resource management
• H04B 10/2575 - Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
• H04B 10/27 - Arrangements for networking
• H04W 88/10 - Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A propeller guard 2 includes: a propeller guard body 10 configured to surround a propeller 30 of a flight vehicle 20; and a rotating member 40 provided on a side surface of the propeller guard body 10, in which the rotating member 40 is able to rotate around at least a horizontal base axis in a case where the rotating member 40 is in contact with a vertical plane located outside the propeller guard body 10.

IPC Classes  ?

• B64U 30/299 - Rotor guards

Abstract

There is provided a technology that improves, in a case where there is a sound signal obtained from a different code that is different from a code from which a decoded sound signal is obtained and that is derived from the same sound signal, the decoded sound signal by using the sound signal obtained from the different code. A signal (hereinafter, referred to as a decoded sound common signal) obtained by downmixing a decoded sound signal of each channel is subjected to signal purification using a monaural decoded sound signal to thereby generate a purified common signal, and in each channel, a signal obtained by upmixing the decoded sound common signal is subtracted from the decoded sound signal and a signal obtained by upmixing the purified common signal is added thereto, to thereby generate a purified decoded sound signal.

IPC Classes  ?

• G10L 19/008 - Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
• G10L 21/043 - Time compression or expansion by changing speed
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

A wireless communication management apparatus (100) includes a correction unit (1131), an evaluation unit (1132), and a determination unit (1133). The correction unit (1131) corrects, on the basis of a characteristic of each terminal, an error rate in wireless communication between a base station and the terminal based on wireless environment information collected from one or more terminals configured to wirelessly communicate with the base station. The evaluation unit (1132) evaluates the corrected error rate. The determination unit (1133) determines a modulation/demodulation scheme for each terminal on the basis of the evaluation result of the evaluation unit.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04L 1/20 - Arrangements for detecting or preventing errors in the information received using signal-quality detector
• H04W 28/04 - Error control

Abstract

An extraction unit extracts predetermined information from an outer header and an inner header of a tunneled packet passing through a network device in which congestion has occurred. An evaluation unit evaluates an order in which fine grain flows in a tunnel subdivided with reference to the extracted predetermined information are subject to TE, based on attribute information of the fine grain flows.

IPC Classes  ?

• H04L 47/125 - Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering

Abstract

An object of the present disclosure is to provide a method for remotely identifying a utility pole position and estimating a state of an overhead optical fiber cable. An object of the present disclosure is to provide a method for remotely identifying a utility pole position and estimating a state of an overhead optical fiber cable. The present disclosure is a method for identifying a utility pole position including identifying a boundary region of a vibration distribution as a utility pole position, from a vibration distribution pattern obtained by measuring strain amounts with respect to distances of an optical fiber by an optical fiber vibration distribution measuring method at each time and sequentially stacking the strain amounts.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G01D 5/353 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre

Abstract

A calculation unit (22) sets each frame, of a moving image including a plurality of frames, as a target frame, calculates a motion vector with reference to a reference frame over an entirety of the target frames, and calculates an index indicating a magnitude of change between a key frame and the target frame, which is represented by using the motion vector, a judgement unit (25) judges whether or not the calculated index is equal to or greater than a predetermined threshold value, a first detection unit (27) detects a region indicating an object from the target frame by using an object detection model in a case in which the index is equal to greater than the threshold value, a second detection unit (28) detects a region on the target frame, which is obtained by correcting a position of a region detected in the reference frame by using the motion vector in a case in which the index is less than the threshold value, and an output unit (30) outputs information of the region detected by the first detection unit (27) and information of the region detected by the second detection unit (28).

IPC Classes  ?

• G06T 7/215 - Motion-based segmentation
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/40 - Scenes; Scene-specific elements in video content

Abstract

The present disclosure is an optical line test system that detects a distribution of loss points of an optical line in a longitudinal direction, using a coherent light measurement device, applies vibration to facility disposed on a path of the optical line, detects a vibration point of the optical line in a longitudinal direction upon applying the vibration, using the coherent light measurement device, and identifies the loss point based on correspondence between the detected loss point and vibration point.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Abstract

An object of the present disclosure is to enable data collection from a plurality of USB devices installed at remote locations. An object of the present disclosure is to enable data collection from a plurality of USB devices installed at remote locations. The present disclosure is a USB transmission system including: a device-side transmitter/receiver configured to transmit/receive data to/from a USB device; and a host-side transmitter/receiver configured to transmit/receive data to/from a USB host, in which each of the device-side transmitter/receiver and the host-side transmitter/receiver includes a data transmission/reception unit configured to transmit/receive a packet of a USB protocol layer via a data network, and the host-side transmitter/receiver includes a hub configured to transfer data to be transmitted/received by the data transmission/reception unit included in the host-side transmitter/receiver to the USB host.

IPC Classes  ?

• G06F 13/36 - Handling requests for interconnection or transfer for access to common bus or bus system

Abstract

An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. An object of the present invention is to provide a communication method, a transceiver, a relay, a communication system, and a program capable of performing high-speed communication even in a case where there is an obstacle between two separated points in water. In this communication method, two points each confirm the other's position by using sound wave communication which is likely to be diffracted as a wave due to a relatively small frequency and a large wavelength. Since the communication method uses optical wireless communication in which straightness is high but high-speed communication is possible, a path for communication while avoiding an obstacle via a relay is calculated. In the communication method, the relay is guided and moved to an appropriate place according to the calculated path, and a signal is transmitted and received by using optical wireless communication using the relay that has moved to an appropriate place.

IPC Classes  ?

• H04B 10/29 - Repeaters
• H04B 10/40 - Transceivers

Abstract

Included are: a vector estimation unit that receives a real number spectrogram and an acoustic intensity vector as inputs and outputs a reverberation component of an acoustic intensity vector; an angle mask extraction unit that receives the acoustic intensity vector as an input and extracts an angle mask; a time-frequency mask estimation unit that receives the real number spectrogram, the acoustic intensity vector from which the reverberation component has been subtracted, and the angle mask as inputs, and outputs a time-frequency mask for noise suppression and sound source separation; a first sound source direction-of-arrival derivation unit that derives a sound source direction-of-arrival on the basis of an acoustic intensity vector obtained by applying the time-frequency mask to the acoustic intensity vector from which the reverberation component has been subtracted; a second sound source direction-of-arrival derivation unit that derives a sound source direction-of-arrival on the basis of an acoustic intensity vector obtained by applying the angle mask to the acoustic intensity vector from which the reverberation component has been subtracted; and a cost function calculation unit that calculates a cost function of a model on the basis of the derived sound source direction-of-arrival and the label, and updates a parameter of the model.

IPC Classes  ?

• G01S 3/808 - Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
• G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound

Abstract

When a controller receives a tunnel setting order from a high-order Ops (operation system), the controller divides the setting order into a first setting processing step related to setting registration of a user, a second setting processing step related to a transfer surface of the tunnel, a third setting processing step related to an interface of each transfer apparatus used for a tunnel of the transfer surface, and a fourth setting processing step related to a parameter to be set to the interface and stores the setting processing steps in a setting management DB. Subsequently, the controller creates a configuration for executing each setting processing step indicated in the tunnel setting order by reflecting information indicated in each divided setting processing step to a template of each setting processing step. In addition, the controller inputs the created configuration to a transfer apparatus at a setting destination of the tunnel.

IPC Classes  ?

• H04L 41/084 - Configuration by using pre-existing information, e.g. using templates or copying from other elements
• H04L 12/46 - Interconnection of networks
• H04L 41/0806 - Configuration setting for initial configuration or provisioning, e.g. plug-and-play

Abstract

A design apparatus optimizes, with a first granularity (for example, a real number solution), a traffic volume allocated to each of links between adjacent nodes included in a network. In addition, the design apparatus calculates an approximation solution obtained by approximating, with a second granularity (for example, an integer solution), the traffic volume having been optimized with the first granularity. Furthermore, the design apparatus maps logical paths to each of routes constituted by the links in accordance with the approximated traffic volume.

IPC Classes  ?

• H04L 47/12 - Avoiding congestion; Recovering from congestion

Abstract

A device includes: a data set including multiple sets in which two pieces of time-series data are respectively recorded; an analysis unit that obtains evaluation values representing a relationship between the two pieces by different analysis methods for each set; a combination extraction unit that extracts combinations of the sets having different trends in change in the evaluation values associated with the analysis methods; a grouping unit that classifies the analysis methods according to the evaluation values for each combination, and records results associated with the sets; an inquiry unit that presents the time-series data of each set to a user, and inquires which sets have similar time-series data; a scoring unit that adds a score of the analysis method belonging to the group having a better evaluation value for the set determined to be more similar; and a selection unit that repeats each process and selects an analysis method.

IPC Classes  ?

• G06F 17/18 - Complex mathematical operations for evaluating statistical data
• G06F 16/2457 - Query processing with adaptation to user needs
• G06F 16/28 - Databases characterised by their database models, e.g. relational or object models

Abstract

It is an object of the present invention to provide a multicore optical fiber, a design method for the multicore optical fiber and an optical transmission method using the multicore optical fiber including four cores having a standard cladding diameter of 125±1 μm for an existing single mode optical fiber covering several thousands of kilometers of transmission. The multicore optical fiber according to the present invention disposes two-stage claddings with different refractive indices around each core, and designates as a predetermined range, a core radius a1, a radius a2 of a first cladding region surrounding each core, specific refractive index Δ1 relative to the core of the first cladding region and a specific refractive index Δ2 relative to the core of a second cladding region including four cores and the first cladding region.

IPC Classes  ?

• G02B 6/02 - Optical fibres with cladding
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,

Abstract

A predetermined STA includes a station information collection unit collecting from the STA itself and other STAs station information used for selection of STAs performing simultaneous transmission and for control of the simultaneous transmission, and a simultaneous-transmission request unit knowing occurrence of a QoS data frame based on the station information and transmitting a request frame requesting the simultaneous transmission to an AP. The AP includes a station information collection unit; a simultaneous-transmission determination unit selecting a combination of the STAs performing the simultaneous transmission based on the station information by reception of the request frame; and a trigger transmission unit transmitting to each of the STAs performing the simultaneous transmission a trigger frame instructing to performs the simultaneous transmission and including information necessary for controlling the simultaneous transmission. Each of the STAs designated by the trigger frame is configured to simultaneously transmit the wireless frames to the AP.

IPC Classes  ?

• H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
• H04B 7/0452 - Multi-user MIMO systems
• H04W 28/02 - Traffic management, e.g. flow control or congestion control

Abstract

An optical characteristic inspection circuit includes, in order, an optical input element, an optical splitter circuit including a resistor, a first optical circuit to be inspected connected to one output of the optical splitter circuit, a second optical circuit to be inspected connected to another output of the optical splitter circuit, and a photodetector that detects an intensity of light transmitted through the first optical circuit to be inspected and an intensity of light transmitted through the second optical circuit to be inspected. Therefore, the present invention can provide an optical characteristic inspection circuit capable of reducing man-hours required for optical characteristic inspection.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
• G01M 11/02 - Testing optical properties
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Abstract

An anchor is buried in the ground near a place where a utility pole is installed. A guy wire is connected to the utility pole. A guy wire rod couples the anchor and the guy wire. An electrode is buried in the ground near a place where the anchor is buried. A power supply supplies an anti-corrosion current with an underground portion of the guy wire rod and the anchor as a cathode and the electrode as an anode. The power supply includes a photovoltaic cell.

IPC Classes  ?

• C23F 13/20 - Conducting electric current to electrodes
• C23F 13/12 - Electrodes characterised by the material
• H02S 20/10 - Supporting structures directly fixed to the ground
• H02S 40/30 - Electrical components

Abstract

A video processing device includes a foreground region estimation unit that determines whether a pixel of an input image is a foreground or a background, and a blinking correction unit that determines, for a target pixel on which a foreground and a background have been switched, whether switching between the foreground and the background is a color change in the foreground or in the background by using a lookup table capable of determining whether switching is in the foreground or in the background from a temporal change of a pixel value, and corrects a result of determination as to whether it is the foreground or the background that has been performed for the target pixel in a case where the switching between the foreground and the background is the color change in the foreground or in the background.

IPC Classes  ?

• G06T 7/194 - Segmentation; Edge detection involving foreground-background segmentation
• G06V 10/56 - Extraction of image or video features relating to colour

Abstract

An imaging device includes an optical element including a transparent substrate and a plurality of structures disposed on or in the transparent substrate in a plane direction of the transparent substrate, an imaging sensor in which a plurality of pixels each including a photoelectric conversion element are arranged, and a signal processing unit configured to generate an image signal based on an electric signal obtained from the imaging sensor, wherein the optical element outputs light with a different point spread function for each wavelength to form, on the imaging sensor, an image in which the point spread function of each wavelength is convoluted, the plurality of structures have the same height in a side view, and the signal processing unit reconstructs an image in which the point spread function of each wavelength is convoluted.

IPC Classes  ?

• H04N 23/12 - Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
• H04N 23/45 - Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
• H04N 23/55 - Optical parts specially adapted for electronic image sensors; Mounting thereof
• H04N 23/56 - Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
• H04N 23/84 - Camera processing pipelines; Components thereof for processing colour signals

Abstract

A wireless communication monitoring system for monitoring a hardware failure of a wireless communication unit of a wireless communication device using a remote monitoring control device, in which the wireless communication device transmits or receives a predetermined radio signal to or from a monitoring device added or attached to the host device to perform a life and death check for checking an operation, and the remote monitoring control device detects a hardware failure of the wireless communication unit of the wireless communication device on the basis of a result of the life and death check received from the wireless communication device. This makes it possible to detect a failure that cannot be detected from information obtained from a device state request to a wireless communication device of the related art.

IPC Classes  ?

• H04W 24/04 - Arrangements for maintaining operational condition
• H04W 24/08 - Testing using real traffic

Abstract

To calculate PageRank with high accuracy using transaction data held by a plurality of data sources as input and keeping the transaction data of each data source secret. A data source apparatus (1) calculates a transaction rate for each combination of transaction entities (S12). The data source apparatus (1) encrypts the transaction rate and transmits the encrypted transaction rate to each secure computation apparatus (2) (S13). Each secure computation apparatus (2) receives a ciphertext of the transaction rate from a plurality of data source apparatuses (1) (S21). The secure computation apparatus (2) securely calculates a ciphertext which becomes, when decrypted, PageRank of the computational objective transaction entity by using the ciphertext of the transaction rate related to the computational objective transaction entity and the ciphertext of the PageRank of a transaction counterpart (S22).

IPC Classes  ?

• G09C 1/00 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system

Abstract

An object of the present disclosure is to reduce a delay time from input of a plurality of videos to output of combined videos. An object of the present disclosure is to reduce a delay time from input of a plurality of videos to output of combined videos. The present disclosure is a video combining device detecting a time deviation between a timing of a frame of each video and a predetermined timing when videos from a plurality of cameras are combined into one screen, giving an instruction for an imaging frame rate to the cameras such that the time deviation is reduced, and combining the videos from the plurality of cameras into one screen and outputting the combined videos.

IPC Classes  ?

• H04N 23/66 - Remote control of cameras or camera parts, e.g. by remote control devices
• H04N 5/262 - Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects

Abstract

A band calculation device (1) according to the present disclosure, in the band calculation device (1) which calculates a band of the link (L) of a relay network (NWR) which is constituted by nodes (N) and links (L) and which relays information transmitted and received between a plurality of communication bases, includes an input unit (21) that receives an input of topology information indicating ports (P) of nodes (N), connection destination ports of the ports (P), and links, respectively, path information indicating primary paths that relay the information when a failure does not occur, paths including backup paths that relay the information when the failure occurs in the primary path, and via transmission ports that are the ports (P) for transmitting the information in the paths, respectively, and traffic information indicating the port (P) and traffic statistic value of the port (P), respectively, and a calculation unit (22) that calculates a band of the link (L) on the basis of the topology information, the path information and the traffic information.

IPC Classes  ?

• H04L 45/00 - Routing or path finding of packets in data switching networks
• H04L 45/02 - Topology update or discovery
• H04L 45/28 - Routing or path finding of packets in data switching networks using route fault recovery

Abstract

A sharing system includes an operation channel of a block chain that shares operation data including information on a construction failure of a resource used in a service provided to a customer among a plurality of nodes, a provision channel of the block chain for sharing provision data used for providing information on a predetermined construction failure for the resource to the customer among a plurality of nodes, a monitoring unit that participates in the operation channel and the provision channel and monitors for construction failures of the resource, a maintenance node including an update unit configured to update a detection state of construction failures in the provision data when detecting update of the state of the construction failure related to the provision channel to be participated, and a provision node that participates in the provision channel and includes a notification unit.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance

Abstract

A call control system includes a management device (30) which manages one or more virtual machines (10) operating on a virtualization platform. The virtual machine (10) includes a volume (12) in which an OS, an MW, and an APL which are not updated in operation are installed, a volume (13) in which data which is updated in operation is arranged, and a recovery unit (11) which transmits an image acquisition request for the volume (13) to the management device (30). The management device (30) includes a management unit (31) which creates the virtual machine (10) by arranging an image file including an OS, an MW, and an APL to the volume (12) and arranging an image file including data which is updated while the virtual machine (10) is operating to the volume (13) and a backup unit (32) which backs up the volume (13) as an image file in response to an image acquisition request from the virtual machine (10). The recovery unit (11) expands an initialization range step by step when a software failure occurs, restarts the software, and transmits a volume creation request to the management device (30) when the initialization range reaches a predetermined stage. The backup unit (32) creates a new volume (13) using the image file in response to the volume creation request. The recovery unit (11) replaces the volume (13) with a new volume (13) created in response to the volume creation request.

IPC Classes  ?

• G06F 11/14 - Error detection or correction of the data by redundancy in operation, e.g. by using different operation sequences leading to the same result
• G06F 9/455 - Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines

Abstract

A rule generation device according to an embodiment includes: a database in which, for each fault, fault factor information including a fault factor part and a fault factor, fault events that occur due to this fault, a rule ID associated with a rule including a condition part and a result part are registered in association with one another; an importance degree determination unit determining, when fault events of a new fault that is a newly occurred fault are registered with the database, degrees of importance of the fault events of the new fault based on at least one of values calculated through statistical processing or analytical processing for information other than the fault events or overall information about the fault events, which are registered with the database; and a rule generation unit generating a rule for the new fault based on the degrees of importance.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance

Abstract

A voltage-controlled oscillator includes a first unit cell, a second unit cell that is connected in parallel to the first unit cell via transmission lines, a compensation unit cell that is connected in parallel with the first unit cell and the second unit cell between the first unit cell and the second unit cell, and an input termination resistor that is connected to a power supply voltage terminal of each of the first unit cell, the second unit cell, and the compensation unit cell. Symmetrical voltages are supplied to the first unit cell and the second unit cell, and the compensation unit cell compensates for a gain by the first unit cell or the second unit cell.

IPC Classes  ?

• H03B 5/24 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device

Abstract

A wiring board includes a dielectric substrate, a ground layer disposed on one surface of the dielectric substrate, a first conductor line and a first ground plane that are disposed apart from each other on the other surface opposing the one surface of the dielectric substrate, and a second conductor line disposed immediately below the first ground plane in the dielectric substrate.

IPC Classes  ?

• H05K 1/02 - Printed circuits - Details
• H01P 3/00 - Waveguides; Transmission lines of the waveguide type
• H01P 3/08 - Microstrips; Strip lines

Abstract

An API adapter generation device include a conversion rule calculation unit (16) configured to acquire a data model of an orchestrator (210) and an API specification to be managed and perform schema matching on the basis of a data schema of the orchestrator and a data schema of the API specification to calculate a model conversion rule, a call logic unit generation unit (19) configured to rewrite a source code of an API call logic unit 232 describing an API adapter execution logic on the basis of the model conversion rule, and an API adapter generation unit (21) configured to generate an API adapter to be managed on the basis of the API call logic unit in which the source code is rewritten.

IPC Classes  ?

• G06F 9/54 - Interprogram communication

Abstract

An information processing apparatus includes a secure area configured to execute a program in secret, and a security chip. The secure area conceals information related to the program, and requests the security chip to provide a blind signature with respect to the concealed information obtained by the concealing. The security chip calculates the blind signature and returns the blind signature to the secure area. The secure area acquires a signature with respect to the information related to the program from the blind signature.

IPC Classes  ?

• H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
• H04L 9/08 - Key distribution

Abstract

An embodiment includes a bioelectrode including a hydrogel film, a conductive film, and a protective film. The conductive film is formed on one surface of the hydrogel film, and the protective film is formed on the other surface of the hydrogel film. The hydrogel film is comprises a mixture of a first material and a second material and is compatible with a living body, the first material configured to cause a sol-gel change at a temperature within a predetermined range around a body temperature of the living body and being compatible with the living body, the second material configured to not cause a sol-gel change at the temperature and being compatible with the living body. The protective film is provided to suppress the infiltration of water into the hydrogel film. The protective film can be made of a waterproof material or a water-repellent material.

IPC Classes  ?

• A61B 5/263 - Bioelectric electrodes therefor characterised by the electrode materials
• A61B 5/07 - Endoradiosondes
• A61B 5/277 - Capacitive electrodes

Abstract

An information processing apparatus including: an experience quality estimation unit that estimates an experience quality value by replacing a plurality of index values included in viewing history data of an image with an index value corresponding to a case other than any one of a plurality of predetermined bit rates; a contribution degree calculation unit that calculates a contribution degree of each bit rate included in the plurality of bit rates to an experience quality value on the basis of the estimated experience quality value; and a contribution degree output unit that outputs information indicating the contribution degree.

IPC Classes  ?

• H04N 21/258 - Client or end-user data management, e.g. managing client capabilities, user preferences or demographics or processing of multiple end-users preferences to derive collaborative data
• H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests
• H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk

Abstract

A rotation state of an object obtained from an input video of a plurality of frames in time series is estimated by using an object image obtained by excluding at least a part of a region common to the plurality of frames from an image corresponding to the object.

IPC Classes  ?

• G06T 7/12 - Edge-based segmentation
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

A base station allocation support apparatus includes a first calculation unit that calculates radio wave propagation attenuation values between a plurality of wireless terminals in a certain area based on position information of each of the plurality of wireless terminals and information indicating a layout of the area, a clustering unit that performs clustering on the plurality of wireless terminals based on the radio wave propagation attenuation values; and a determination unit that determines an arrangement position of a wireless base station with respect to the wireless terminals based on a result of the clustering.

IPC Classes  ?

• H04W 16/18 - Network planning tools

Abstract

A video coding method is a video coding method for coding an image in units of blocks obtained by dividing an image, and in the method a computer performs processing for dividing the image into blocks, acquiring an intra-image prediction mode predicted for each block, and generating, by using a combination pattern based on the intra-image prediction mode of a plurality of blocks adjacent to at least any one block, determining whether or not the plurality of blocks are to be combined, and performing prediction for each combined block when it is determined that the plurality of blocks are to be combined.

IPC Classes  ?

• H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
• H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
• H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
• H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

Abstract

An information processing device includes an extraction unit, an inverse sampling unit, a mapping unit, a generation unit, and a correction unit. The extraction unit is to extract a first feature value of a first image. The inverse sampling unit is to generate a second image having a resolution lower than that of the first image based on the first image and first information indicating a lighting environment different from that of the first image. The mapping unit generates a vector representing a latent space based on the second image. The generation unit is configured to generate a second feature value of a third image having a resolution higher than that of the second image based on the vector. The correction unit is configured to generate a fourth image obtained by correcting the third image based on the first feature value and the second feature value.

IPC Classes  ?

• G06T 11/60 - Editing figures and text; Combining figures or text
• G06T 3/40 - Scaling of a whole image or part thereof
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
• G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model

Abstract

An object of the present invention is to provide an evaluation method and an evaluation device for easily determining whether or not a structural parameter of a multi-core fiber satisfies a desired connection loss value (a specification). The evaluation method according to the present invention includes a step of measuring center coordinates of each core with the center coordinates when a clad is approximated by a circle as an origin in an observed cross-sectional structure of the multi-core fiber to be objected, obtaining a length of a line segment connecting the origin and the center of each core and an angle formed by two line segments connecting the origin and two adjacent cores, and judging whether or not a desired connection loss characteristic is satisfied on the basis of whether or not the values satisfy a predetermined determination formula.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
• C03C 13/04 - Fibre optics, e.g. core and clad fibre compositions

Abstract

A connection destination switching control method executed by a communication apparatus, the connection destination switching control method comprising: a data acquisition step of acquiring observed values of received power of signals transmitted from a base station; a prediction processing step of predicting future received power by using the observed values acquired in the data acquisition step as input data into a prediction model; and a connection destination switching processing step of executing control for handover based on the future received power predicted in the prediction processing step.

IPC Classes  ?

• H04W 36/30 - Reselection being triggered by specific parameters by measured or perceived connection quality data
• H04W 36/00 - Handoff or reselecting arrangements
• H04W 36/36 - Reselection control by user or terminal equipment

Abstract

An encoding parameter deriving apparatus for improving video delivery quality is provided. The encoding parameter deriving includes: a relationship deriving unit that calculates a value of an index indicating a quality of experience of a viewer for each of a plurality of encoded videos generated by encoding an original video by a plurality of combinations of values of encoding parameters, and derives a relationship between the values of the encoding parameters and the values of the index; and a possibility deriving unit that derives a plurality of possibilities for a combination of values of the encoding parameters to be used for encoding the original video, based on the relationship.

IPC Classes  ?

• H04N 19/154 - Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
• H04N 19/115 - Selection of the code volume for a coding unit prior to coding

Abstract

An array generating unit (15b) divides a sequence of acoustic features for each frame of an acoustic signal into segments of a predetermined length and generates an array in which a plurality of divided segments in a row direction are arranged in a column direction. A learning unit (15d) generates by learning, using the array, a speaker diarization model (14a) for estimating a speaker label of a speaker vector of each frame.

IPC Classes  ?

• G10L 17/04 - Training, enrolment or model building
• G10L 15/04 - Segmentation; Word boundary detection
• G10L 17/02 - Preprocessing operations, e.g. segment selection; Pattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal components; Feature selection or extraction
• G10L 17/18 - Artificial neural networks; Connectionist approaches