Abstract

A route search device includes a memory and a processor configured to divide a communication network including a plurality of nodes and an edge connecting the nodes into a plurality of areas based on information of the nodes, and create a first network graph that represents a connection relationship between the areas; search for one or more first routes from a start point area including a start point node to an end point area including an end point node using the first network graph; and search for one or more second routes from the start point node to the end point node using a second network graph that represents a connection relationship between the nodes and the edge in areas included in the first routes.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance

Abstract

A network controller included in an optical transmission system in which an optical transmitter and an optical receiver communicate with each other via an optical transmission path, the network controller including a simulator that constructs simulation models by virtually reproducing a state of an optical transmission path in an optical transmission system including the optical transmitter, the optical receiver, and the optical transmission path in different virtual spaces, and estimates a characteristic of a device provided in the optical transmission path in each of simulation models, and an ideal output estimator that estimates an output of a characteristic of an ideal device based on a characteristic of the device estimated by the simulator and a characteristic of a device provided in the optical transmission path obtained in a real space, in which a state of an optical transmission path is different for each of the simulation models.

IPC Classes  ?

• H04B 10/073 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an out-of-service signal

Abstract

An object of the present invention is to propose a technique that enables even a person who is not an expert to easily identify a DF in order to support creation of a scenario in accordance with an actual situation of an organization such as a company. An object of the present invention is to propose a technique that enables even a person who is not an expert to easily identify a DF in order to support creation of a scenario in accordance with an actual situation of an organization such as a company. According to the present invention, there is provided a strategic planning support device 3 that supports strategic planning of a company, the device 3 including: a relationship analysis unit 34 configured to analyze a word representing human behavior or regulations related to each of a plurality of detailed items in a financial index of a predetermined organization, the financial index varying due to a past similar event similar to an event of the predetermined organization; and an output unit 35 configured to output, as each element of a coordinate axis of a driving force, a first word representing human behavior related to a first detailed item having the largest ratio in the financial index and a second word representing human behavior related to a second detailed item in which an absolute value of a correlation coefficient related to a correlation with the human behavior or regulations related to the first detailed item is equal to or less than a threshold value, among the plurality of detailed items.

IPC Classes  ?

• G06Q 10/0637 - Strategic management or analysis, e.g. setting a goal or target of an organisationPlanning actions based on goalsAnalysis or evaluation of effectiveness of goals
• G06F 16/334 - Query execution

Abstract

The optical device includes a semiconductor layer formed on a cladding layer and composed of a III-V compound semiconductor, and a light-receiving element for monitoring a semiconductor laser formed on the semiconductor layer and oscillation light of the semiconductor laser. A first p-contact layer and a first n-contact layer of the semiconductor laser, a second p-contact layer and a second n-contact layer, and a light absorption layer of the light-receiving element are composed of the same III-V compound semiconductor (InGaAsP).

IPC Classes  ?

• H01S 5/323 - Structure or shape of the active regionMaterials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures in AIIIBV compounds, e.g. AlGaAs-laser
• H01S 5/026 - Monolithically integrated components, e.g. waveguides, monitoring photo-detectors or drivers

Abstract

According to one aspect of the present invention is an optical transmission apparatus including: a division unit configured to divide a frequency-multiplexed input signal into signals with a plurality of bands; a plurality of phase modulators that are allocated to the plurality of bands divided by the division unit and perform phase modulation on the signals with the allocated bands; and a synchronous addition unit configured to synchronously add the signals modulated by the plurality of phase modulators. The input signal may be a multichannel video signal. An output from the same laser diode may be input to each of the plurality of phase modulators.

IPC Classes  ?

• H04B 10/548 - Phase or frequency modulation
• H04B 10/50 - Transmitters
• H04J 14/02 - Wavelength-division multiplex systems

Abstract

The present disclosure relates to a signal processing device that: acquires a signal obtained by repeatedly injecting a plurality of light pulses with different optical frequencies into an optical fiber, and by performing distributed acoustic sensing-phase (DAS-P); calculates a phase change, caused by vibration applied to a section of the optical fiber, using the acquired signal; removes, from the calculated phase change, a component regarding a repetition period of the same optical frequency of the plurality of light pulses; and calculates the vibration applied to the section of the optical fiber, using a phase change obtained by removing the component regarding the period.

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 memberMeans 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 convertingTransducers 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

An estimation apparatus includes: an input part configured to receive, as inputs, an extended word alignment between a source sentence and a translated sentence, and translation quality tags between the source sentence and the translated sentence; and an edit tag estimation part configured to estimate an edit tag based on the extended word alignment and the translation quality tags.

IPC Classes  ?

• G06F 40/51 - Translation evaluation
• G06F 40/166 - Editing, e.g. inserting or deleting

Abstract

A determination apparatus uses an identification model for identifying whether or not input data is malignant, to obtain a result of identifying whether or not the input data is malignant. Further, the determination apparatus obtains grounds (explanation result) for the identification of the input data in the identification model using an explanation model that outputs the grounds for the identification in the identification model. The determination apparatus obtains a probability that identification results of the identification model is incorrect using an objection determination model receiving a result of the identification and an identification explanation result, and outputting a probability that the identification result is incorrect. The determination apparatus extracts data to be verified by the user on the basis of the probability that the identification result is incorrect.

IPC Classes  ?

• G06F 21/56 - Computer malware detection or handling, e.g. anti-virus arrangements

Abstract

One aspect of the present invention is a control method comprising: an acquisition step of acquiring a first coverage indicating a range in which a communication device and a terminal can communicate with each other, and a second coverage indicating a range in which the communication device provides a communication service; and a derivation step of deriving a beam width communicable in the second coverage on the basis of the first coverage and the second coverage acquired in the acquisition step.

IPC Classes  ?

• H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
• H04B 7/08 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management

Abstract

A sound signal downmixing method includes a step of obtaining, for each of two channels, a signal obtained by adding an input sound signal of one channel to a signal obtained by delaying an input sound signal of the other channel and multiplying the delayed input sound signal by a weight value as a delayed crosstalk-added signal of the one channel, a step of obtaining preceding channel information and a left-right correlation value, and step of obtaining a downmix signal by performing weighted addition on the input sound signals of the two channels based on the left-right correlation value and the preceding channel information such that more of a signal derived from an input sound signal of a preceding channel among the signals derived from the input sound signals of the two channels is included as the left-right correlation value becomes larger.

IPC Classes  ?

• H04S 1/00 - Two-channel systems
• G10L 19/008 - Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

Abstract

A voice quality information collection device includes a SIP server log collection unit for collecting a SIP server log including an incoming call number, identification information of a destination carrier, and a line number, from a SIP server, an MG log collection unit for collecting an MG log including a TerminationID allocated by a predetermined logic and a delay time calculated by an RTCP report, from an MG, and a data generation unit for converting a line number included in the SIP server log into a TerminationID and integrating the post-conversion SIP server log and the MG log by using a TerminationID, to generate log integration information.

IPC Classes  ?

• H04L 65/80 - Responding to QoS
• H04L 65/1023 - Media gateways
• H04L 65/1104 - Session initiation protocol [SIP]
• H04M 3/22 - Arrangements for supervision, monitoring or testing

Abstract

A video transmission device 11 includes a plurality of transmission units 112 that each convert into IP packets in parallel each video data with a low frame rate obtained by dividing video data with a high frame rate through allocation in units of video frames in temporally preceding order and transmit the IP packets.

IPC Classes  ?

• H04N 21/2662 - Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• H04N 21/462 - Content or additional data management e.g. creating a master electronic program guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities

Abstract

The wireless transmission device includes a power amplifier that varies transmission power. An SNR degradation amount calculation unit calculates an SNR degradation amount {QAM} caused by QAM and an SNR degradation amount {APSK} caused by APSK on the basis of input/output characteristics of the power amplifier acquired from an input/output characteristic storage unit, a QAM modulated signal acquired from a QAM modulation unit, an APSK modulated signal acquired from an APSK modulation unit, and the transmission power of the power amplifier. A modulation scheme selection unit acquires a required SNR {QAM} of QAM and a required SNR {APSK} of APSK from a required SNR storage unit, compares “required SNR {QAM}+SNR degradation amount {QAM}” with “required SNR {APSK}+SNR degradation amount {APSK}”, and selects the modulation scheme with the smaller value.

IPC Classes  ?

• H04L 1/00 - Arrangements for detecting or preventing errors in the information received
• H04W 52/24 - TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Abstract

There is provided a control apparatus that executes control for a DC power supply system in which a plurality of bases including at least a first base including a first power supply device and a second base including a second power supply device and a load device are connected by electrical supply lines, the control apparatus including: an information acquisition unit that acquires information about a bus between the second power supply device and the load device; a determination unit that determines whether to execute voltage control in the DC power supply system, based on the information and a threshold value; and a control unit that executes voltage control on at least one of the first power supply device and the second power supply device in a case where the determination unit determines to execute the control.

IPC Classes  ?

• H02J 1/12 - Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier

Abstract

A waveform signal generation system includes: a neural network function unit configured to generate a target waveform signal from an intermediate representation signal by changing a time component or a feature component of the intermediate representation signal indicating an intermediate representation between an input signal and the target waveform signal using a neural network function; and a non-neural network function unit configured to act for at least a part of processing for generating the target waveform signal from the intermediate representation signal using a non-neural network function indicating a relationship between the time component and the feature component of the intermediate representation signal. The neural network function unit upsamples a time component of the intermediate representation signal using the neural network function.

IPC Classes  ?

• G10L 25/30 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using neural networks
• G10L 13/02 - Methods for producing synthetic speechSpeech synthesisers
• G10L 21/003 - Changing voice quality, e.g. pitch or formants

Abstract

An image processing device according to an embodiment generates a stereoscopic image presented to a plurality of users from an original image. The image processing device is a computer including a processor. The processor is configured to: discretely divide an assumed viewpoint position of a tracked user who is a main viewer of the stereoscopic image; acquire an actual viewpoint position of the tracked user; generate left and right parallax inducing patterns from viewpoint images obtained by capturing an object included in the original image from a plurality of viewpoint positions, with a viewpoint image at the actual viewpoint position as a reference; and generate a stereo pair image including an image obtained by adding the parallax inducing patterns to a reference image to be presented and an image obtained by subtracting the parallax inducing patterns from the reference image.

IPC Classes  ?

• H04N 13/122 - Improving the 3D impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues
• H04N 13/156 - Mixing image signals
• H04N 13/383 - Image reproducers using viewer tracking for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes

Abstract

The present disclosure provides an underground facility position contrast system S, which includes: a scattered light intensity distribution measurement device 1 for measuring, when an earthquake vibration is applied to an optical fiber F laid underground, a change over time in a scattered light intensity distribution in a longitudinal direction of the optical fiber F; and an underground facility position contrast device 2 for measuring a change over time in a distortion response distribution in the longitudinal direction of the optical fiber F based on the change over time in the scattered light intensity distribution in the longitudinal direction of the optical fiber F, estimating an underground facility state of the optical fiber F based on the change over time in the distortion response distribution in the longitudinal direction of the optical fiber F, and associating the underground facility position of the optical fiber F with a longitudinal distance of the optical fiber F.

IPC Classes  ?

• G01V 1/01 - Measuring or predicting earthquakes
• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G01V 1/22 - Transmitting seismic signals to recording or processing apparatus

Abstract

Provided is a microphone array for obtaining information equivalent to an Ambisonics type acoustic signal. The microphone array includes two fixing parts fixed to both ears of a user, and at least two microphones held by the fixing parts respectively, wherein when the fixing parts are fixed to both ears, the position of the microphone arranged on one ear side and the position of the microphone arranged on the other ear side are asymmetrical.

IPC Classes  ?

• H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads
• H04R 3/00 - Circuits for transducers
• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

The present invention is intended to provide an inspection optical circuit that can input and output inspection light to and from a circuit to be inspected with low loss, and can minimize a space for disposing the inspection optical circuit. Provided is an inspection optical circuit for inspecting a tested circuit formed on an optical circuit chip on a wafer by inputting and outputting light through a grating coupler, wherein the grating coupler is formed on the same optical circuit chip as the tested circuit, and a folded waveguide for connecting an input/output waveguide of the tested circuit and the grating coupler is formed in a region provided on a dicing line for cutting out the optical circuit chip.

IPC Classes  ?

• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
• G02B 6/122 - Basic optical elements, e.g. light-guiding paths
• G02B 6/125 - Bends, branchings or intersections
• G02B 6/13 - Integrated optical circuits characterised by the manufacturing method

Abstract

A device estimation system (1) includes a packet analysis model learning apparatus (20) for generating a packet analysis model (200), a waveform analysis model learning apparatus (30) for generating a waveform analysis model (300), a traffic information collection apparatus (50) for collecting packets of a target device (5), and a device estimation apparatus (10) for extracting a statistical value and a keyword from a packet, generating candidates for a manufacturer and a functional category of the target device (5) using the packet analysis model (200), generating traffic waveform information from the packet, narrowing down the candidates using the waveform analysis model (300), specifying the manufacturer and functional category of the target device (5), and transmitting the same to the analysis model management apparatus (40).

IPC Classes  ?

• H04L 41/14 - Network analysis or design
• 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

Abstract

A phase adjustment circuit includes a clock generation unit (1) which generates a sinusoidal differential clock signal; a variable amplifier (2) which receives a differential clock signal output from the clock generation unit (1) as an input, outputs an amplitude-adjusted differential clock signal, and simultaneously outputs an amplitude-adjusted in-phase signal; an adding unit (3) which adds an in-phase signal to each of a positive phase side and a negative phase side of the differential clock signal output from the variable amplifier (2); a differential transmission line (4) which transmits the differential signal output from the adding unit (3); and a terminal circuit (5) which terminates the differential transmission line (4).

IPC Classes  ?

• H03K 5/01 - Shaping pulses
• H03K 5/00 - Manipulation of pulses not covered by one of the other main groups of this subclass
• H03K 17/56 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices

Abstract

An information generation apparatus includes an associated information acquisition unit configured to acquire information associated with a selected field; a subject matter extraction unit configured to extract a subject matter from the acquired information; and a time series information generation unit configured to generate time series information relating to the extracted subject matter.

IPC Classes  ?

• G06Q 10/0637 - Strategic management or analysis, e.g. setting a goal or target of an organisationPlanning actions based on goalsAnalysis or evaluation of effectiveness of goals
• G06F 40/205 - Parsing

Abstract

In a case where an input of an operation log indicating a series of operations to a computer is received, an operation log processing device detects an operation log of a rework operation that is an operation log to the same operation position from operation logs. Thereafter, the operation log processing device displays the detected operation log of the rework operation among the operation logs indicating the series of operations to distinguish the detected operation log from other operation logs or removes the operation log of the rework operation, and creates information visualizing a process of the series of operations. In addition, the operation log processing device outputs the created information.

IPC Classes  ?

• G06Q 10/0633 - Workflow analysis

Abstract

A relay device controller includes a reception station communication quality collection unit that collects information on communication quality of the reception station, a learning unit that acquires information collected by the reception station communication quality collection unit and calculates a control parameter of the relay device by reinforcement learning using a value based on the communication quality of the reception station as a reward, and a relay device control unit that controls the relay device with the control parameter calculated by the learning unit.

IPC Classes  ?

• H04B 7/155 - Ground-based stations

Abstract

A scheduling control apparatus that calculates a weight for scheduling a terminal in a wireless system including a plurality of base stations includes: an information acquisition unit configured to acquire information regarding a connection state between each of the plurality of base stations and the terminal; a weight calculation unit configured to calculate, for each base station of the plurality of base stations, a weight indicating an allocation ratio of communication amounts between one or a plurality of terminals connected to the base station; and a control unit configured to notify the base station of the weight. The weight calculation unit calculates the weight by repeating processing for updating the weight so that an error between expected wireless communication quality obtained when the weight is given to each of the terminals and required wireless communication quality of each of the terminals is small.

IPC Classes  ?

• H04W 72/12 - Wireless traffic scheduling

Abstract

Provided is an optical communication system having an aggregate station at a head and a plurality of extension stations connected in series. Each of the plurality of extension stations demultiplexes a signal received from upstream-side equipment into a first demultiplexed signal having a locally allocated wavelength and a second demultiplexed signal having another wavelength and transmits the second demultiplexed signal to downstream-side equipment. Each of the plurality of extension stations multiplexes a signal received from the downstream-side equipment and a locally processed signal and transmits a multiplexing result to the upstream-side equipment.

IPC Classes  ?

• H04J 14/02 - Wavelength-division multiplex systems

Abstract

A radio wave information measurement system according to an embodiment: stores predicted values of radio wave information, the predicted values being predicted, by each of a plurality of users, to be measured at a respective plurality of measurement positions preset in a predetermined area; receives measured values of the radio wave information, the measured values being measured at the respective plurality of measurement positions by each of wireless terminals; calculates, for each of the plurality of measurement positions, a difference between a predicted value and a measured value for each user; calculates, for each user, an accumulated value of differences calculated; calculates a score for each user such that a score value increases as the accumulated value decreases; and transmits scores of the plurality of users calculated to each of the wireless terminals, and each of the wireless terminals displays the scores of the plurality of users transmitted.

IPC Classes  ?

• H04W 24/10 - Scheduling measurement reports
• H04B 17/318 - Received signal strength
• H04B 17/373 - Predicting channel quality parameters

Abstract

An image capturing element according to the present disclosure includes a pixel array formed by a plurality of pixels arranged in an array on a substrate, each of the plurality of pixels including a photoelectric conversion element, a transparent layer formed on the pixel array, and a spectroscopic element array formed by a plurality of spectroscopic elements arranged in an array, and each of the plurality of spectroscopic elements is at a position corresponding to one of the plurality of spectroscopic elements inside or on the transparent layer. Each of the plurality of spectroscopic elements includes a plurality of microstructures formed from a material having a refractive index higher than a refractive index of the transparent layer. The plurality of microstructures have a microstructure pattern. Each of the plurality of spectroscopic elements separates incident light into deflected light beams having different propagation directions according to the wavelength.

IPC Classes  ?

• H04N 25/13 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements
• H04N 25/77 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components

Abstract

The present invention provides a computation device or the like that computes an index (hereinafter also referred to as “importance level”) used to control display of information of a web page browsed when a purchaser considers product purchase in an online transaction. The computation device includes an importance level computation unit that computes an importance level that is an index indicating how much importance a user who intends to purchase a product places on human information and thing information by using an operation log of a web page and human thing information, in which the human information is information regarding a user who sells a product, and the thing information is information regarding a product, and the human thing information is information indicating whether each piece of content on the web page is the human information or the thing information.

IPC Classes  ?

• G06Q 30/0601 - Electronic shopping [e-shopping]
• G06Q 30/0202 - Market predictions or forecasting for commercial activities
• G06Q 30/0282 - Rating or review of business operators or products

Abstract

A subscriber line accommodation device (2) includes a mounting unit (21) capable of mounting a plurality of line termination units (20). The mounting unit (21) includes a communication line for the plurality of line termination units (20) to communicate a test signal with a time difference by a time division multiplex transmission method, and a timing line (SCK) for causing the plurality of line termination units (20) to receive a communication timing of the test signal in the time division multiplex transmission method, and the test signal is communicated with at least one line termination unit (20) connected to the same communication line to test normality of the same communication line, and the communication timing is received by at least one line termination unit (20) connected to the same timing line (SCK) to test normality of the same timing line (SCK).

IPC Classes  ?

• H04J 3/14 - Monitoring arrangements

Abstract

According to embodiment of the present invention, a communication equipment includes an acquirer configured to acquire obstruction information including a distance from a radiator radiating a beam to an obstruction obstructing the beam; a derivator configured to derive a beam width of the beam radiated from the radiator in accordance with the distance to the obstruction acquired by the acquirer; and a beam controller configured to control the radiator such that the beam is radiated with the beam width derived by the derivator.

IPC Classes  ?

• H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
• H04W 16/28 - Cell structures using beam steering

Abstract

An optical amplifier of the present disclosure includes a rare-earth doped fiber including a plurality of cores, in which a v value of the plurality of cores of the rare-earth doped fiber is less than 2.405, the plurality of cores has a core pitch of a normalized coupling coefficient of 1.0×10−3 or more, and on injection of excitation light into a clad part of the rare-earth doped fiber in a state of being bent at a predetermined bending radius, propagating light in the rare-earth doped fiber is amplified with mode-dependent gain characteristics dependent on the bending radius.

IPC Classes  ?

• H01S 3/067 - Fibre lasers
• H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
• H01S 3/16 - Solid materials

Abstract

A wireless transmission device and a wireless receiver that support at least two multi-level modulation schemes are used. The multi-level modulation scheme includes a first modulation scheme (QAM) and a second modulation scheme (APSK) having a shorter minimum Euclidean distance on the constellation and a lower PAPR than the first modulation scheme. A power amplifier has a function of changing transmission power. A transmission power control unit determines transmission power, and the power amplifier changes the transmission power. A modulation scheme selection unit compares the transmission power with a threshold value set on the basis of a boundary point at which a linear region and a nonlinear region of the power amplifier are switched, selects the QAM when the transmission power is not greater than the threshold value, and selects the APSK when the transmission power is greater than the threshold value.

IPC Classes  ?

• H04L 27/00 - Modulated-carrier systems
• H04L 27/34 - Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
• H04W 52/26 - TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]

Abstract

An installation position calculation device of a relay station according to an embodiment includes: an identification circuitry configured to identify an installed station candidate point at which an LOS region from the relay station is maximized in an installed station candidate range or among a plurality of installed station candidate points predetermined as installation position candidates; a correction circuitry configured to correct a position of each of the identified installed station candidate points based on a Fresnel zone for the relay station; a storage circuitry configured to store, as an installation position of the relay station, the position of the installed station candidate point at which an LOS region from the relay station is maximized among each of the identified installed station candidate points or the corrected installed station candidate points; and a controller configured to control such that the number of installation positions of the relay station.

IPC Classes  ?

• H04W 16/18 - Network planning tools

Abstract

A time synchronization device (10) according to the present disclosure includes: a selection unit (16) that selects one master device (1) that performs time synchronization from among a plurality of master devices (1); a correction value calculation unit (17) that calculates a time correction value for correcting an internal time such that the one master device (1) and the time synchronization device synchronize with each other; a correction value storage unit (18) that stores a previous time correction value used for correcting the internal time; and a correction value adjustment unit (19) that, in a case where the one master device (1) is switched, adjusts a time correction value calculated for a switching destination master device (1) on the basis of the stored time correction value and corrects the internal time on the basis of the adjusted time correction value.

IPC Classes  ?

• H04L 7/00 - Arrangements for synchronising receiver with transmitter

Abstract

An estimation device includes processing circuitry configured to extract a fixed-length feature amount from a payload of communication data, calculate a similarity between feature amounts of abnormal communication data, and determine that events are of a same type when the calculated similarity is greater than a predetermined threshold.

IPC Classes  ?

• H04L 9/40 - Network security protocols
• H04L 41/142 - Network analysis or design using statistical or mathematical methods

Abstract

A computer executes an input procedure of inputting a patch including an operator not defined in SmPL and having a variable name id for which a default value is specified, a type T of id, and an id default value t as arguments, and a description using SmPL, and a rewrite target program, and a generation procedure of generating a patch indicating, by using SmPL, that a variable declaration statement for substituting a computation result of t into the T-type variable id is added to the rewrite target program when the T-type variable is not defined in the rewrite target program, and generating a patch in which id in the description is replaced with the variable when the T-type variable is defined in the rewrite target program, thereby improving efficiency related to rewriting of a program.

IPC Classes  ?

• G06F 8/30 - Creation or generation of source code

Abstract

According to an aspect of the present invention, there is provided a sound estimation model acquisition device including a model acquisition unit configured to acquire a mathematical model that estimates an estimated time series that is a time series satisfying a predetermined estimation condition from one or a plurality of time series on a basis of a first sound time series that is a time series indicating a first sound, a second sound time series that is a time series indicating a second sound, and first difference information indicating at least a partial difference between the first sound and the second sound, in which the mathematical model is a mathematical model that estimates the estimated time series on the basis of an input time series that is a time series indicating an input sound and second difference information that is information indicating at least a partial difference between the input time series and the estimated time series, and the estimation condition is a condition that a difference between a difference from the input time series and a difference indicated by the second difference information is smaller than a predetermined difference.

IPC Classes  ?

• G06F 16/635 - Filtering based on additional data, e.g. user or group profiles
• G10L 25/51 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination

Abstract

A processing device 1 includes: a calculation unit 22 that calculates deviation degrees of two items of time-series data among a plurality of items of time-series data through a plurality of respective analysis methods and calculates an evaluation value of variations in the deviation degrees calculated through the plurality of respective analysis methods for combinations of two items of time-series data among the plurality of items of time-series data; and an extraction unit 23 that extracts combinations of two items of time-series data for which the evaluation value satisfies a predetermined condition.

IPC Classes  ?

• G06F 16/2458 - Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries

Abstract

A light pulse generation device includes a light intensity modulator 2 that outputs light pulses in which a signal intensity of a photocarrier output by a light source 1 is modulated in accordance with a magnitude of a drive signal with an operation bias point as the center, a measurement unit 3 that measures an inter-pulse phase component that is an amplitude between the light pulses, a bias control unit 4 that controls the operation bias point on the basis of a magnitude of the inter-pulse phase component, and a drive signal control unit 5 that controls the magnitude of the drive signal on the basis of the magnitude of the inter-pulse phase component. The drive signal control unit 5 controls the drive signal such that an amplitude of the drive signal is twice an amplitude between a maximum value and a minimum value of a transmission characteristic of the light intensity modulator 2.

IPC Classes  ?

• H04B 10/073 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an out-of-service signal
• H04B 10/54 - Intensity modulation

Abstract

A wireless transmission device and a wireless reception device that support QAM and APSK are used. The wireless transmission device includes a power amplifier that varies transmission power. A constellation calculation unit calculates an estimated constellation {QAM} predicted to occur when a QAM-modulated signal is amplified by the power amplifier at desired transmission power on the basis of input/output characteristics of the power amplifier, and similarly calculates an estimated constellation {APSK} predicted to occur when an APSK-modulated signal is amplified at the desired transmission power. A modulation scheme selection unit compares an estimated minimum Euclidean distance on the estimated constellation {QAM} with an estimated minimum Euclidean distance on the estimated constellation {APSK}, and selects the modulation scheme having the longer distance.

IPC Classes  ?

• H04L 27/34 - Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
• H04L 27/38 - Demodulator circuitsReceiver circuits
• H04W 52/06 - TPC algorithms

Abstract

A server (30) includes a timing estimation unit (33) that estimates a processing time during which a dedicated processing unit (32) executes dedicated processing on current target data offloaded to the dedicated processing unit (32); and a polling control unit (38) that waits for execution of polling processing for requesting the dedicated processing unit (32) to transmit an execution result of the dedicated processing until the estimated processing time elapses, and executes the polling processing on the dedicated processing unit (32) when the estimated processing time has elapsed.

IPC Classes  ?

• G06F 13/22 - Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
• G06F 1/3206 - Monitoring of events, devices or parameters that trigger a change in power modality

Abstract

A wireless communication method includes phase shift amount determination processing for determining a random phase shift amount for each of streams of transmission data. The wireless communication method further includes modulation processing for modulating the transmission data and further shifting a phase according to the random phase shift amount for each of the streams. The wireless communication method further includes precoding processing for performing precoding on the transmission data after the modulation processing, and transmission processing for transmitting the transmission data after the precoding processing from the transmission device to the reception device.

IPC Classes  ?

• H04L 27/20 - Modulator circuitsTransmitter circuits
• H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
• H04L 27/26 - Systems using multi-frequency codes

Abstract

A capacity estimation unit estimates a channel capacity related to wireless communication between a communication device and a relay device. A scheme determination unit determines a transmission scheme of the data from the communication device to the relay device to be a scheme in which transmission efficiency is lower and transmission quality is higher as the channel capacity is larger, or to be a scheme in which the transmission quality is lower and the transmission efficiency is higher as the channel capacity is smaller.

IPC Classes  ?

• H04B 7/195 - Non-synchronous stations

Abstract

A wireless communication method includes phase shift amount determination processing for determining a phase shift amount for each symbol of transmission data, modulation processing for modulating the transmission data and further shifting a phase according to the phase shift amount for each symbol, and precoding processing for performing precoding on the transmission data after the modulation processing. The transmission data after the precoding processing is transmitted from the transmission device to the reception device. A plurality of types of phase shift patterns prepared in advance define different phase shift amounts. The phase shift amount determination processing includes: selecting, from among the plurality of types of phase shift patterns, one that minimizes a PAPR of the transmission data after the precoding processing or one that maximizes a data reception quality in the reception device; and determining the phase shift amount for each symbol according to the selected phase shift pattern.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes
• H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting

Abstract

A wireless communication method includes phase shift amount determination processing for determining a phase shift amount for each stream of transmission data, modulation processing for modulating the transmission data and further shifting a phase according to the phase shift amount for each stream, and precoding processing for performing precoding on the transmission data after the modulation processing. The transmission data after the precoding processing is transmitted from the transmission device to the reception device. A plurality of types of phase shift patterns prepared in advance define different phase shift amounts. The phase shift amount determination processing includes: selecting, from among the plurality of types of phase shift patterns, one that minimizes a PAPR of the transmission data after the precoding processing or one that maximizes a data reception quality in the reception device; and determining the phase shift amount for each stream according to the selected phase shift pattern.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes
• H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting

Abstract

An object of the present disclosure is to accurately estimate a time discount rate of a user without depending on a measurement method using questionnaires. An object of the present disclosure is to accurately estimate a time discount rate of a user without depending on a measurement method using questionnaires. Therefore, the present disclosure provides a time discount rate estimation device that estimates a time discount rate in a learning phase, the time discount rate estimation device including: a behavior transition time calculation unit that calculates a transition time from a behavior of a predetermined user recorded at each date and time to all types of behaviors of the predetermined user and outputs behavior transition time feature data for each behavior recorded at each date and time; and a time discount rate estimation model learning unit that calculates an error between a value of a time discount rate obtained by inputting the behavior transition time feature data to a time discount rate estimation model obtained by deep learning and a time discount rate serving as correct answer data based on an answer by the predetermined user and performs machine learning on the time discount rate estimation model so as to reduce the error.

IPC Classes  ?

• G06Q 30/0201 - Market modellingMarket analysisCollecting market data
• G06N 20/00 - Machine learning

Abstract

An object of the present invention is to provide an optical fiber testing apparatus and an optical fiber testing method capable of measuring distance dependency of inter-core crosstalk of a non-coupled multicore fiber at the time of the bidirectional transmission. An object of the present invention is to provide an optical fiber testing apparatus and an optical fiber testing method capable of measuring distance dependency of inter-core crosstalk of a non-coupled multicore fiber at the time of the bidirectional transmission. An optical fiber testing apparatus (301) according to the present invention includes a measurement device (10) which inputs an optical pulse from one end (A) of a non-coupled multicore fiber (50) to one core of the non-coupled multicore fiber (50), and measures a first light intensity of backscattered light output from the one core at one end (A), and inputs a light pulse from one end (A) of the non-coupled multi-core fiber (50) to another core, and measures a second light intensity of the backscattered light output from the one core at one end (A); and a calculator (20) which calculates, from the first light intensity and the second light intensity, inter-core crosstalk distance dependency when bidirectional transmission is performed.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for

Abstract

Provided is an optical communication system having an aggregate station at a head and a plurality of extension stations connected in series. The aggregate station outputs a downlink optical signal generated by performing electrical-to-optical (E/O) conversion for a radio signal to the plurality of extension stations and acquires radio signals by performing optical-to-electrical (O/E) conversion for uplink optical signals input from the plurality of extension stations. Each extension station transmits a radio signal obtained by performing O/E conversion for the downlink optical signal received from the aggregate station and transmits an uplink optical signal generated by performing E/O conversion for a received radio signal to the aggregate station. Wavelengths of the uplink optical signal and the downlink optical signal allocated to the plurality of extension stations are the same.

IPC Classes  ?

• H04B 10/27 - Arrangements for networking

Abstract

A resource allocation apparatus selects, based on process information indicating a plurality of functions to be used in performing a process and performance requirements for communications between the plurality of functions, the plurality of functions one by one as a first function in order of the performance requirements, the process being performed by a computing system including a plurality of devices, each of the plurality of devices being bus-connected to one or more other devices. The resource allocation apparatus then determines a first device that is used to implement the first function, based on distances of bus-based communication paths between each of devices that are able to implement the first function and a second device that is used to implement a second function that is a communication partner of the first function.

IPC Classes  ?

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

Abstract

Each transmitting apparatus transmits the same radio signals a plurality of times. A communication apparatus includes a plurality of antennas, a signal storage unit, a reading unit, an equalization unit, and a demodulation unit. The plurality of antennas receives radio signals transmitted from a plurality of the transmitting apparatuses. The signal storage unit stores reception signals received by each of the plurality of antennas. The reading unit reads, from the signal storage unit, reception signals including radio signals transmitted from a demodulation processing target transmitting apparatus, the reception signals being received by each of the plurality of antennas at different times. The equalization unit equalizes the plurality of reception signals read by the reading unit. The demodulation unit demodulates the equalized reception signals.

IPC Classes  ?

• H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
• H04B 7/185 - Space-based or airborne stations

Abstract

An acquisition unit acquires environment information indicating an installation environment of a communication apparatus. A scheme specifying unit specifies a transmission scheme of data on the basis of relational data indicating a relationship between the environment information and the transmission scheme and the acquired environment information. A transmission unit transmits the data to a relay device on the basis of the specified transmission scheme.

IPC Classes  ?

• H04B 7/195 - Non-synchronous stations

Abstract

An analysis device (40) receives an xFlow packet that is generated based on a sampled encapsulation packet and includes information regarding an outer header of the encapsulation packet and statistical information of a flow including the encapsulation packet. The analysis device (40) collates information regarding the outer header associated with information for identifying a user of VPN with information regarding the outer header included in the xFlow packet received by a reception unit (431), and specifies the user of the VPN from which the xFlow packet is transferred.

IPC Classes  ?

• H04L 43/026 - Capturing of monitoring data using flow identification
• H04L 12/46 - Interconnection of networks
• H04L 69/22 - Parsing or analysis of headers

Abstract

A control function module of a mobile network receives, from a user terminal that has accessed the mobile network, a request to communicate with a data processing device connected to an external network outside the mobile network. The control function module determines whether or not a user of the user terminal is a registered user. In a case where a user of the user terminal is a registered user, the control function module transmits information used to establish communication between a communication device in the mobile network and the data processing device to an external network control device that controls the external network.

IPC Classes  ?

• H04W 48/18 - Selecting a network or a communication service
• H04W 76/10 - Connection setup
• H04W 92/02 - Inter-networking arrangements

Abstract

Provided is a device and a method for extracting point clouds of structures from point clouds by clustering a point cloud in which each point represents three-dimensional coordinates, and detecting a target facility from the structures using reflection intensities of the extracted point clouds of the structures.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics
• G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects

Abstract

A control apparatus for allocating a virtual network to a physical network is disclosed. The control apparatus includes a processor, and a memory storing instructions, which when executed, cause the processor to execute a process including performing allocation of virtual nodes configuring the virtual network to physical nodes or determination of paths between the virtual nodes, based on a prediction value of an amount of traffic of a service, a prediction value of an amount of power consumption of a physical node, information relating to the physical network, and a command value relating to power supply-demand match.

IPC Classes  ?

• H04L 41/40 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
• H04L 41/147 - Network analysis or design for predicting network behaviour

Abstract

A communication method, which is executed by a communication apparatus among a plurality of communication apparatuses connected in multiple stages includes steps of acquiring downlink optical signals having one or more wavelengths including a predetermined reception wavelength from a previous stage and transmitting a communication situation signal or an allocation request signal of the communication apparatus to the previous stage using uplink optical signals having one or more wavelengths including a predetermined transmission wavelength, selecting a downlink optical signal having the reception wavelength, acquiring an allocation control signal indicating allocation of the reception wavelength and the transmission wavelength from the selected downlink optical signal having the reception wavelength, updating the reception wavelength and the transmission wavelength in accordance with the acquired allocation control signal, and transmitting an uplink optical signal having the updated transmission wavelength to the previous stage.

IPC Classes  ?

• H04Q 11/00 - Selecting arrangements for multiplex systems

Abstract

An editing support device accepts input of operation flow indicating a series of operations on a computer by nodes indicating the operations and an edge connecting the nodes. Next, the editing support device determines whether or not a nested state of a control structure of the operation flow is incomplete on the basis of a connection relationship between the nodes of the operation flow. Here, in a case where the nested state of the control structure of the operation flow is incomplete, the editing support device determines that an error is included in the operation flow and specifies a node that is a cause of the error in the operation flow as an error node. Then, the editing support device outputs information on the specified error node.

IPC Classes  ?

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

Abstract

A second communication device transmits notification information related to a communication status between a transmission device and a first communication device to the transmission device. The transmission device determines a transmission method of data to the first communication device on the basis of the notification information received from the second communication device, and transmits the data to the first communication device by the determined transmission method.

IPC Classes  ?

• H04W 48/10 - Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
• H04W 28/18 - Negotiating wireless communication parameters

Abstract

An access-control-purpose system that provides access information to first and second communication devices that perform mutual authentication using ID-based encryption creates an access secret key by generating a hash value of a logical sum of a character string based on the access information and a master secret key, creates first authentication data by generating a hash value of a first authentication ID for the first communication device by using a first hash function, creates second authentication data by generating a hash value of a second authentication ID for the second communication device by using a second hash function, creates access confirmation data configured by a product of the access secret key and a generation source of a subgroup in a group on a first elliptic curve and a product of the access secret key and a generation source of a subgroup in a group on a second elliptic curve, transmits the first authentication data and the access confirmation data to the first communication device, and transmits the second authentication data and the access confirmation data to the second communication device.

IPC Classes  ?

• H04W 12/08 - Access security
• H04W 12/041 - Key generation or derivation
• H04W 12/06 - Authentication

Abstract

A validity determination apparatus according to one embodiment includes: circuitry configured to acquire a natural sentence; output a semantic representation by executing semantic parsing with the natural sentence as an input; calculate a first alignment score representing a relationship between input/output tokens of the natural sentence and the semantic representation; calculate a second alignment score of a word unit from a relationship between a token included in the input/output tokens and a word; extract natural sentence content words by executing part-of-speech parsing on the natural sentence; a grammar parser configured to extract semantic representation content words by executing grammar parsing on the semantic representation; and determine whether the semantic representation is valid on the basis of the second alignment score, the natural sentence content words, and the semantic representation content words.

IPC Classes  ?

• G06F 40/226 - Validation
• G06F 40/253 - Grammatical analysisStyle critique
• G06F 40/284 - Lexical analysis, e.g. tokenisation or collocates
• G06F 40/30 - Semantic analysis

Abstract

In a base station control system including a first base station whose deployment position has not been determined and a base station control apparatus, the base station control apparatus reduces a deviation in the number of terminals connected to each base station by including a clustering unit configured to repeat clustering for dividing a plurality of terminals into clusters for each of the first base station and a second base station while fixing a position of the existing second base station to which the plurality of terminals is connected and changing a position of the first base station, a calculation unit configured to calculate a number of first terminals connected to the first base station and a number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is deployed at a position at a point in time at which the clustering is completed, and a selection unit configured to select a transmission power of the first base station on the basis of the number of first terminals and the number of second terminals.

IPC Classes  ?

• H04W 52/28 - TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
• H04W 16/18 - Network planning tools

Abstract

A server delay controller includes: a sleep management unit that makes a thread sleep when no packet arrives for a predetermined period and cancels the sleep of the thread with a hardware interrupt when the packet arrives; a HW interrupt frequency management table that stores the number of times of hardware interrupt; and a HW interrupt frequency control unit that calculates a HW interrupt frequency on the basis of the number of times of hardware interrupt and controls HW interrupt permission or prohibition by sleep of the sleep management unit on the basis of the calculated HW interrupt frequency.

IPC Classes  ?

• G06F 9/48 - Program initiatingProgram switching, e.g. by interrupt
• G06F 1/3296 - Power saving characterised by the action undertaken by lowering the supply or operating voltage

Abstract

A quantum compilation device obtains a probability p(k) that minimizes an error between a distribution of first observed values obtained by observing, with any observation method, a first quantum state obtained by causing the quantum circuit to be compiled represented by a unitary matrix U to act on any input quantum state, and a distribution of second observed values obtained by observing, with the observation method, a second quantum state obtained by causing a quantum circuit represented by each of a plurality of elements Uk∈{U1, . . . , UK} of a set {U1, . . . , UK} to act on the input quantum state with the probability p(k), for the set {U1, . . . , UK} in which a unitary matrix representing elementary gates and/or a unitary matrix representing a product of unitary matrices each representing an elementary gate are the elements U1, . . . , and UK, and the unitary matrix U representing a quantum circuit to be compiled, and outputs an element Uk with the probability p(k). Here, K is an integer of 2 or more, and k=1, . . . , and K.

IPC Classes  ?

• G06N 10/80 - Quantum programming, e.g. interfaces, languages or software-development kits for creating or handling programs capable of running on quantum computersPlatforms for simulating or accessing quantum computers, e.g. cloud-based quantum computing
• G06N 10/20 - Models of quantum computing, e.g. quantum circuits or universal quantum computers

Abstract

An amplification optical fiber according to the present disclosure is an amplification optical fiber doped with a rare earth element, the amplification optical fiber including: a first cladding enclosing cores of the amplification optical fiber; and a second cladding enclosing the first cladding, in which the two or more cores are disposed inside the first cladding in a cross section of the amplification optical fiber, and a core cladding ratio Rcc, which is a ratio of a sum of areas of the two or more cores to a sum of areas of the two or more cores and the first cladding in the cross section of the amplification optical fiber, is 0.0095

IPC Classes  ?

• H01S 3/067 - Fibre lasers
• H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light

Abstract

Each unit cell (4a-1 to 4a-N) of the distributed double balanced mixer outputs a signal (R++) obtained by multiplexing the LO signal (LO+) on the positive phase side and the IF signal (IF+) on the positive phase side, a signal (RF−−) obtained by multiplexing the LO signal (LO−) on the negative phase side and the IF signal (IF−) on the negative phase side, a signal (RF−+) obtained by multiplexing the LO signal (LO−) on the negative phase side and the IF signal (IF+) on the positive phase side, and a signal (RF+−) obtained by multiplexing LO signal (LO+) on the positive phase side and IF signal (IF−) on the negative phase side, to transmission lines (CPW20pp, CPW20nn, CPW20np, CPW20pn), without synthesizing the signals.

IPC Classes  ?

• H03D 7/14 - Balanced arrangements

Abstract

Provided is a motion element including: a substrate; a gel layer made of a stimulus-responsive gel and provided on one surface of the substrate; and an input unit that inputs a stimulus to which the stimulus-responsive gel reacts in a non-contact manner at an arbitrary position on the gel layer, in which adhesive regions where the substrate and the gel layer adhere to each other and a non-adhesive region where the substrate and the gel layer do not adhere to each other are formed at an interface between the substrate and the gel layer, the adhesive regions are provided on both sides of the non-adhesive region in a plan view, and the input unit inputs the stimulus to the gel layer overlapping the non-adhesive region.

IPC Classes  ?

• F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like

Abstract

The present invention includes a transmission line and a quasi-coaxial structure unit connected to the transmission line and having a first opening having a first opening diameter. The transmission line has a characteristic impedance that is the same as a characteristic impedance at a connection portion of a dielectric spectroscopy system. The present invention further includes an opening diameter adjustment unit connected to the quasi-coaxial structure unit, having one end having a predetermined characteristic impedance, and having the other end serving as a second opening having a second opening diameter different from the first opening diameter.

IPC Classes  ?

• G01N 27/02 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance

Abstract

Provided an optical transmission characteristic estimation device that models an optical effect of an optical transmission line by a nonlinear Schrodinger equation, divides the optical transmission line into N (N is an integer of two or more) sections, obtains a solution of the nonlinear Schrodinger equation by an operation of N steps in which a section length of each of the divided N sections is a step size, and estimates transmission characteristics of the optical transmission line, the optical transmission characteristic estimation device including a step size update unit configured to update each of the N step sizes on the basis of an estimated optical power distribution and an estimated dispersion distribution, which are indicated by the transmission characteristics.

IPC Classes  ?

• H04B 10/073 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an out-of-service signal
• H04B 10/2543 - Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
• H04B 10/61 - Coherent receivers

Abstract

A migration destination determination apparatus configured to, in migration of a virtual machine, determine a physical server as a migration destination of the virtual machine, the migration destination determination apparatus including: an extraction unit configured to extract one or more variation patterns in resource usage from resource amount logs acquired from a plurality of physical servers; and a migration destination determination unit configured to determine, based on a similarity between a variation pattern in resource usage of the virtual machine in an area of a migration source and a variation pattern in resource usage of a physical server in another area, the physical server as a migration destination of the virtual machine.

IPC Classes  ?

• G06F 9/455 - EmulationInterpretationSoftware simulation, e.g. virtualisation or emulation of application or operating system execution engines

Abstract

An object of the present disclosure is to provide an optical fiber having a simple structure, as well as attaining removal of loss components generated in an electric field part oozing out to a core-clad interface or a clad region and reduction in scattering loss generated from an interface with the clad region. An object of the present disclosure is to provide an optical fiber having a simple structure, as well as attaining removal of loss components generated in an electric field part oozing out to a core-clad interface or a clad region and reduction in scattering loss generated from an interface with the clad region. The present disclosure relates to an optical fiber including a core for propagating light, a cladding disposed around the core, an air layer between the core and the cladding, and two or more bridges for supporting the core in the air layer.

IPC Classes  ?

• G02B 6/02 - Optical fibres with cladding

Abstract

A transmission device includes: a transmission signal amplifier enabled to vary transmission power; a transmission power control unit 28 that controls the transmission power; an error rate characteristic estimation unit that estimates an error rate of a reception signal in a reception device of a communication partner, and a reception unit that receives information on an SNR in the reception device. The error rate characteristic estimation unit executes: processing of estimating a constellation corresponding to a modulation scheme and reflecting a specification regarding an input-output characteristic of the transmission signal amplifier on the basis of the transmission power, and processing of estimating the error rate on the basis of a characteristic of the constellation and the SNR. The transmission power control unit controls the transmission power such that the error rate satisfies a predetermined requirement.

IPC Classes  ?

• H04W 52/20 - TPC being performed according to specific parameters using error rate
• H04W 52/24 - TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
• H04W 52/52 - Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers

Abstract

The sensory stimulus presentation device includes: a label acquisition unit that acquires a classification label of an intellectual task to be performed by a user; and a sound emission unit that emits a first type of sound satisfying a predetermined criterion when the acquired classification label indicates a creativity task, and emits a second type of sound satisfying a criterion different from that of the first type of sound when the acquired classification label indicates a storage task.

IPC Classes  ?

• A61M 21/02 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
• A61M 21/00 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis

Abstract

An information presentation method for presenting action instruction information to a presentation proxy device that performs a presentation as proxy includes: a step of acquiring a scenario of a presentation and data of a personality characteristic of a human presenter; a step of converting the scenario by using an action characteristic model in accordance with the data of the personality characteristic of the human presenter; and a step of outputting the scenario converted, to the presentation proxy device.

IPC Classes  ?

• H04L 12/18 - Arrangements for providing special services to substations for broadcast or conference
• G06T 13/80 - 2D animation, e.g. using sprites

Abstract

A data collection device according to an embodiment includes: an acquisition unit that acquires data when the data is stored in a shared storage area available to one or more users; a determination unit that determines whether or not a format of the data acquired by the acquisition unit is a format in which text included in the data can be extracted by a predetermined library; an extraction unit that extracts the text included in the data by a text extraction method according to a determination result determined by the determination unit; and a storage unit that stores the text extracted by the extraction unit in a database as learning data for a machine learning model that implements a natural language processing task.

IPC Classes  ?

• G06F 16/3329 - Natural language query formulation
• G06F 16/176 - Support for shared access to filesFile sharing support
• G06V 30/148 - Segmentation of character regions

Abstract

A local terminal transmits to a processing device an RDMA transmission packet in which processing data to be transferred to a memory of an accelerator of each of a first remote terminal and a second remote terminal is set. The processing device acquires a QPN from the first remote terminal, converts a Destination QP of a BTH of the RDMA transmission packet into the QPN acquired from the first remote terminal, and transmits a converted RDMA transmission packet to the first remote terminal. When a connection is established, the processing device acquires a QPN from the second remote terminal, converts the Destination QP of the BTH of the RDMA transmission packet into the QPN acquired from the second remote terminal, and transmits a converted RDMA transmission packet to the second remote terminal. Each of the first and second remote terminal transfers the processing data to the memory of the accelerator.

IPC Classes  ?

• G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal

Abstract

The information presentation device according to an embodiment includes: an acquisition unit configured to acquire a speech speed and a sound pressure of an utterance at a predetermined interval; a determination unit configured to determine whether at least one of the speech speed or the sound pressure needs to be improved or not; and a presentation content control unit configured to acquire a pseudo heartbeat sound in a case where it is determined that the speech speed needs to be improved, acquire a bubble noise in a case where it is determined that the sound pressure needs to be improved, and output presentation information including at least one of the pseudo heartbeat sound or the bubble noise.

IPC Classes  ?

• G10L 25/60 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
• G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog

Abstract

An object of the present disclosure is to enable a three-dimensional model to be created even for a target object which has unevenly spaced inter-point distances and only a part of a point cloud. An object of the present disclosure is to enable a three-dimensional model to be created even for a target object which has unevenly spaced inter-point distances and only a part of a point cloud. According to the present disclosure, there are provided an apparatus and a method in which, a three-dimensional model of a target object is created from point cloud data in which each point represents three-dimensional coordinates, the three-dimensional model is superimposed on an image in which a target object of the three-dimensional model is photographed, a superimposed image generated by the superimposition is displayed, and when a range of the target object in the superimposed image is input, a three-dimensional model is created again using point cloud data in which a point is located in a range of the superimposed image.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics

Abstract

In a wireless communication system including a first communication device, one or more second communication devices disposed around the first communication device, and a relay device that moves, the second communication device includes a second reception unit that attempts to receive a radio wave in a predetermined band and measures reception strength, and a second transmission unit that transmits, to the first communication device, reception result information indicating a peripheral radio wave condition based on the reception strength measured by the second reception unit, and the first communication device includes a first reception unit that attempts to receive a radio wave in the predetermined band and measures reception strength, a determination unit that determines a band to be used for transmission of data to the relay device on a basis of a peripheral radio wave condition based on the reception strength measured by the first reception unit and the peripheral radio wave condition based on the reception result information transmitted from the second transmission unit, and a first transmission unit that transmits the data to the relay device using the band determined by the determination unit.

IPC Classes  ?

• H04B 17/318 - Received signal strength
• H04B 7/185 - Space-based or airborne stations

Abstract

According to an aspect of the present invention, there is provided a signal transfer system that transfers a signal from one communication device to another communication device, the signal transfer system including an information acquisition unit that acquires network transfer information that is information regarding a traffic flow for each traffic flow from the one communication device to the other communication device; and a communication control unit that executes an adjustment process that is a process of reducing a waiting time for a frame on the basis of the network transfer information acquired by the information acquisition unit.

IPC Classes  ?

• H04L 47/283 - Flow controlCongestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• H04W 28/06 - Optimising, e.g. header compression, information sizing

Abstract

A data transfer system includes: a transmission side data transfer device that transmits a plurality of pieces of data generated by a data generator; and a reception-side data transfer device that transmits a bundle of the pieces of data to a remote computer, the transmission-side data transfer device includes: a distribution unit that distributes the plurality of pieces of data to distribution destinations having priorities of the respective pieces of data; a generation unit that consolidates a plurality of pieces of data respectively distributed to the distribution destinations into each chunk having a size greater than or equal to a certain size, in order from one of the distribution destinations having a high priority; and a transmission unit that transmits each of the chunks to the reception-side data transfer device, and the reception-side data transfer device includes a determination unit that determines the priorities of the pieces of data.

IPC Classes  ?

• H04L 47/24 - Traffic characterised by specific attributes, e.g. priority or QoS
• H04L 67/06 - Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]

Abstract

A wireless communication system includes a first communication apparatus that moves, a second communication apparatus that moves, and a reception apparatus. A first control unit of the first communication apparatus, when an own apparatus can communicate with any of the reception apparatuses, transmits transmission data acquired by the own apparatus from a first communication unit to the reception apparatus, and, when the own apparatus cannot communicate with any of the reception apparatuses, transmits the transmission data from a second communication unit to the second communication apparatus capable of communicating with the own apparatus. A second control unit of the second communication apparatus transmits the transmission data received by a third communication unit from the first communication apparatus from a fourth communication unit to a reception apparatus capable of communicating with the own apparatus.

IPC Classes  ?

• H04W 40/06 - Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on characteristics of available antennas
• H04W 48/16 - DiscoveringProcessing access restriction or access information
• H04W 76/10 - Connection setup

Abstract

To provide a noise control apparatus capable of stabilizing a noise suppression operation even when noise characteristics rapidly change in a manner that the noise control apparatus is controlled by correcting a coefficient of an adaptive filter, stopping a cancelling speaker, and the like in accordance with the current position of a vehicle such as a train. The noise control apparatus generates a cancellation signal to be reproduced by a cancelling speaker by performing an operation corresponding to position information m of a moving object in which the cancelling speaker used in active noise control is installed.

IPC Classes  ?

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

Abstract

There is provided a device switching method in an optical communication system including an upper-layer device, a switching source optical subscriber line terminal station device that is a device switching source, a switching destination optical subscriber line terminal station device that is a device switching destination, and an optical branching unit to which the switching source optical subscriber line terminal station device and the switching destination optical subscriber line terminal station device are connected. The optical branching unit has a branching ratio of M:N and has M first ports and N second ports. The switching source optical subscriber line terminal station device is connected to one first port, and the switching destination optical subscriber line terminal station device is connected to any of the remaining first ports of the M first ports. The device switching method starts communication by the switching destination optical subscriber line terminal station device after setting.

IPC Classes  ?

• H04B 10/272 - Star-type networks
• H04B 10/032 - Arrangements for fault recovery using working and protection systems
• H04L 12/44 - Star or tree networks
• H04L 41/084 - Configuration by using pre-existing information, e.g. using templates or copying from other elements

Abstract

A tilt angle optimization apparatus configured to perform optimization of a tilt angle of each of antennas at each of base stations forming a cellular network is provided. The tilt angle optimization apparatus includes a processor; and a memory storing program instructions that cause the processor to: construct a performance model by modeling a relationship between the number of active users of each of the antennas and performance providable by each of the antennas; estimate a user distribution of active users around each of the base stations based on statistical data observed at each of the base stations; and obtain the tilt angle of each of the antennas based on the constructed performance model and the estimated user distribution in order to maximize area quality in a specified target area.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation

Abstract

A server delay control device includes: a data arrival notifier that notifies a data processing APL of data acquired by a data arrival monitor and passes the data to the data processing APL (1); and a manager that causes a polling thread to sleep and cancels sleep of the polling thread by a hardware interrupt when a packet arrives, and the manager controls a timing of the sleep by permitting the hardware interrupt on the basis of characteristics of an application program.

IPC Classes  ?

• H04L 43/0852 - Delays
• H04L 43/103 - Active monitoring, e.g. heartbeat, ping or trace-route with adaptive polling, i.e. dynamically adapting the polling rate

Abstract

A characteristic measurement device that measures a characteristic between lanes of a transmitter and a receiver connected via an optical fiber transmission path, the characteristic measurement device including an adaptive equalization unit that uses a polarization multiplexed reception signal and a phase conjugate signal of the polarization multiplexed reception signal or a plurality of signals mathematically equivalent to the reception signal and the phase conjugate signal of the reception signal as input signals and performs equalization processing on the input signals, and a characteristic function derivation unit that calculates a first inverse characteristic representing an inverse characteristic of the transmitter and a second inverse characteristic representing an inverse characteristic of the receiver on the basis of a filter coefficient obtained at the time of the equalization processing performed by the adaptive equalization unit and a frequency offset.

IPC Classes  ?

• H04J 14/02 - Wavelength-division multiplex systems
• H04J 14/06 - Polarisation multiplex systems

Abstract

A wireless communication system includes a transmission apparatus and a communication apparatus that moves. Further, the wireless communication system includes a statistics calculation unit, an information generation unit, and a notification unit. The statistics calculation unit acquires a transmission condition used for a first radio signal transmitted from the transmission apparatus in an area and normally received by a reception unit of the communication apparatus, and generates statistical information of the acquired transmission condition. The information generation unit extracts a transmission condition having a high probability that a radio signal is normally received on the basis of the statistical information, and generates transmission control information indicating the extracted transmission condition. The notification unit notifies the transmission apparatus in the area of the transmission control information. A transmission control unit of the transmission apparatus determines a transmission condition of the radio signal on the basis of the transmission control information, and transmits a second radio signal from a wireless transmission unit that transmits a radio signal to the communication apparatus according to the determined transmission condition.

IPC Classes  ?

• H04W 72/20 - Control channels or signalling for resource management
• H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
• H04W 84/06 - Airborne or Satellite Networks

Abstract

There is provided a wireless communication device in a wireless communication system including one or more communication devices installed on the ground and a moving wireless communication device, the wireless communication device including: an activation signal generation unit that generates an activation signal for activating the one or more communication devices; a distribution unit that distributes the activation signal generated by the activation signal generation unit; one or more frequency change application units that apply a frequency change to the activation signal distributed by the distribution unit; and a transmission unit that transmits an activation signal to which a frequency change is applied to the one or more frequency change application units.

IPC Classes  ?

• H04B 7/185 - Space-based or airborne stations
• H04W 52/02 - Power saving arrangements

Abstract

A display control device estimates an occurrence time at which a call occurs at an occurrence point for each of a plurality of occurrence points on the basis of a predictive distribution of an occurrence point representing a point where a call for an emergency vehicle occurs. The display control device executes a simulation of an emergency activity in which any one of a plurality of emergency vehicles available for dispatch is dispatched to the occurrence point at the occurrence time for each of the plurality of occurrence points on the basis of the occurrence time of each of the plurality of occurrence points and an operational status of each of the plurality of emergency vehicles. On the basis of a simulation result, the display control device extracts, from the plurality of occurrence points, an occurrence point at which the distance between an emergency vehicle available for dispatch and the occurrence point is equal to or greater than a threshold, and calculates a risk level such that the risk level of an area to which the extracted occurrence point belongs becomes high. The display control device controls a display unit to display the risk level.

IPC Classes  ?

• G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations
• G06Q 10/0635 - Risk analysis of enterprise or organisation activities
• G06Q 50/22 - Social work or social welfare, e.g. community support activities or counselling services

Abstract

A reflection characteristic analysis device analyzes reflection characteristics of a reconfigurable intelligent surface (RIS: Reconfigurable Intelligent Surface). The reflection characteristic analysis device includes a ray trace calculation unit and an electromagnetic field analysis unit. The ray trace calculation unit calculates an incident angle of an electromagnetic wave incident on the reconfigurable intelligent surface by a ray-tracing method. The electromagnetic field analysis unit acquires the incident angle calculated by the ray trace calculation unit, and calculates, based on an electromagnetic field analysis, the reflection characteristics obtained when the electromagnetic wave enters the reconfigurable intelligent surface at the incident angle.

IPC Classes  ?

• H01Q 3/46 - Active lenses or reflecting arrays

Abstract

An aspect of the present invention is an optical transmitter including: a first modulation unit configured to generate an optical modulated signal through intensity modulation of an optical signal; a second modulation unit configured to generate an optical modulated signal through phase/frequency modulation of the optical signal; and a modulation scheme switching unit configured to switch a modulator of the optical signal to one of the first and second modulation units. The modulation scheme switching unit switches the modulator to a modulation unit corresponding to a device of a connection destination between the first and second modulation units.

IPC Classes  ?

• H04B 10/516 - Details of coding or modulation
• H04B 10/27 - Arrangements for networking

Abstract

One aspect of the present invention is a pin display device 100 including a housing and a plurality of pins, the pin display device 100 being used as a pin display system 300 such that a direction in which at least gravity acts is set as a negative direction of a z direction, and a lower surface of the housing is brought into contact with or into proximity to an upper surface 200a that is one surface of a magnetic sheet 200. Each pot magnet emits a magnetic field capable of moving a pin 120 including the pot magnet in a positive direction of the z direction by a repulsive force due to a magnetic force generated between the pot magnet and the upper surface 200a of the magnetic sheet 200 in a state where the pin 120 including the pot magnet is inserted into a pin insertion hole.

IPC Classes  ?

• G09F 9/37 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements

Abstract

A user management apparatus adds a tag in which route information is described to a packet received from a user and transmits the packet to a data transfer device. The data transfer device transfers the packet to one of data processing devices under control and other data transfer devices based on the route information included in the received packet. The data processing device performs processing of a service function for data included in the received packet. A communication management apparatus calculates a route of a service chain necessary for implementing the service requested by the user and transmits route information to the user management apparatus.

IPC Classes  ?

• H04L 45/037 - Routes obligatorily traversing service-related nodes
• H04L 47/24 - Traffic characterised by specific attributes, e.g. priority or QoS

Abstract

According to an aspect of the present invention, there is provided a noise reducing device including: a provisional image reconstructing unit that generates a provisional image by reconstructing an encoded image obtained through compressed spectral imaging; a similar patch search unit that acquires a plurality of similar provisional patches that are small regions including images similar to each other in the provisional image; a group generating unit that acquires a plurality of similar encoded patches that are small regions including images similar to each other in the encoded image based on information on positions where the similar provisional patches have been acquired; a low-rank approximation unit that performs low-rank approximation based on the plurality of similar encoded patches to acquire a patch in which noise on an image has been reduced in a region included in the similar encoded patches; and a patch integrating unit that generates an encoded image by integrating a plurality of patches in which noise has been reduced, depending on information on positions of the patches.

IPC Classes  ?

• G06T 5/70 - DenoisingSmoothing
• G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces

Abstract

A detection device includes processing circuitry configured to acquire position information and a file size of a falsification detection target file, and determine a change in the position information or the file size acquired, and detect falsification of the falsification detection target file in a case where there is a change in the position information or the file size.

IPC Classes  ?

• G06F 21/64 - Protecting data integrity, e.g. using checksums, certificates or signatures

Abstract

An information processing apparatus acquires an operation log regarding operation information, analyzes the operation log, and specifies attribute information of the operation log. Then, the information processing apparatus visualizes an image including an object on the basis of the specified attribute information, where the object is an object of operation logs in predetermined units and is selectable by an operation of a user. Next, the information processing apparatus generates a feasible automatic operation program on the basis of a selected object in a case where the object included in the visualized image is selected by the operation of the user.

IPC Classes  ?

• G06Q 10/0639 - Performance analysis of employeesPerformance analysis of enterprise or organisation operations
• G06Q 10/0631 - Resource planning, allocation, distributing or scheduling for enterprises or organisations

Abstract

An object of the present disclosure is to enable a three-dimensional model to be created even for a target object which has unevenly spaced inter-point distances and only a part of a point cloud. According to the present disclosure, there are provided an apparatus and a method in which a three-dimensional model of a target object is created from point cloud data in which each point represents three-dimensional coordinates, the three-dimensional model is superimposed on an image in which a target object of the three-dimensional model is photographed, a point cloud data to be added to a point cloud data that constitutes the three-dimensional model is selected by comparing the three-dimensional model with the target object in the image, and the three-dimensional model of the target object is created again using the point cloud data including the point cloud to be added.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts

Abstract

Provided are a delay time measurement server, a delay time measurement method, and a program for calculating a video display delay time without arranging a special device on the client side. The delay time measurement server calculates a video transmission delay time from when a video signal obtained by encoding a specific video is transmitted toward a monitor until when a reaction signal for the specific video is received, as a video display delay time from when the video signal is transmitted toward the monitor until when the video is displayed on the monitor.

IPC Classes  ?

• H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests

Abstract

Provided is an optical access system that performs communication using an optical signal on which management control signals used for management and control are superimposed in a plurality of transmission lines connecting a plurality of subscriber devices, the optical access system including: a plurality of splitters that are provided for the respective transmission lines and split a plurality of optical signals transmitted from the plurality of subscriber devices; a monitoring unit configured to acquire the management control signals from each of the plurality of optical signals split by each of the plurality of splitters; and an output device that is provided between the monitoring unit and the plurality of splitters and outputs the plurality of optical signals split by the plurality of splitters to the monitoring unit.

IPC Classes  ?

• H04Q 11/00 - Selecting arrangements for multiplex systems