Abstract: A terminal according to one aspect includes: at least one memory configured to store an instruction; and at least one processor configured to perform the instruction, wherein the processor performs the instruction, and thus provides, to another terminal, an authentication request related to data being an authentication target, authentication information about an own terminal, and credit information about the own terminal, acquires, from the another terminal, an authentication result of the another terminal for the authentication request, and reclaims the credit information from the another terminal or an authentication server after the another terminal accesses the authentication server and thus validity of the authentication information is authenticated.
Abstract: Provided are a lightning stroke detection device, etc., whereby the occurrence of a lightning stroke can be detected by a simple system configuration. A lightning stroke detection device (4) comprises an optical signal reception means (12) for receiving an optical signal including sensing information from an optical fiber network (3) for detecting the sensing information, and a lightning stroke detection means (13) for using the sensing information included in the optical signal to detect the occurrence of a lightning stroke in the optical fiber network, the sensing information indicating at least a vibration pattern of the lightning stroke, and the lightning stroke detection means (13) detecting the occurrence of a lightning stroke on the basis of the vibration pattern.
Abstract: An information processing device acquires a first position indicating a physical position of a first communication device, a second position indicating a physical position of a second communication device, and a plurality of third positions indicating physical positions set in a path connecting the first position and the second position; and searches for a physical path corresponding to a communication path of the first communication device and the second communication device based on the first position, the second position, and the plurality of third positions.
Abstract: A terminal according to one aspect includes: at least one memory configured to store an instruction; and at least one processor configured to perform the instruction, wherein the at least one processor performs the instruction, and thus provides an electronic signature to data by using a secret key of an own terminal, provides, as an authentication request to another terminal, the data provided with the electronic signature, acquires, from the another terminal, an authentication result of an authentication server for the authentication request, the authentication result being encoded by using a public key of the own terminal, and decodes the authentication result by using the secret key of the own terminal.
Abstract: A search apparatus according to the present disclosure includes a transmission unit configured to transmit, at a plurality of sites, a first communication request signal to a terminal; a reception unit configured to receive, from the terminal, a first response signal to the first communication request signal; and a calculation unit configured to calculate an approximate position of the terminal, in which the reception unit receives the first response signal including a time of reception of the first communication request signal by the terminal, and the calculation unit calculates a time difference obtained from a time when the first communication request signal is transmitted and a time when the first communication request signal is received, and calculates the approximate position of the terminal using Observed Time Difference Of Arrival (OTDOA) obtained based on a time difference at at least two of a plurality of sites.
Abstract: An anomaly detection device that includes an extraction unit that acquires sensor data from a sensor installed in footwear and extract a gait feature amount characteristic in gait of a pedestrian wearing the footwear by using the sensor data, and a detection unit that detects an anomaly in a foot of the pedestrian walking wearing the footwear based on the gait feature amount extracted by the extraction unit.
Abstract: An information transmission apparatus can use a salesclerk information storage unit. The salesclerk information storage unit stores, by a plurality of salesclerks, salesclerk identification information about the salesclerk and detailed information about the salesclerk in association with each other. Then, the information transmission apparatus includes a salesclerk position transmission unit and a detailed information transmission unit. The salesclerk position transmission unit transmits, for each of a plurality of salesclerks present in a store, salesclerk position information about the salesclerk and salesclerk identification information about the salesclerk in association with each other to a customer terminal.
Abstract: A movement control system (1000) includes at least one moving body (1), a sensor (3) configured to transmit movement region information related to a movement region of the moving body, a route generating unit (440) configured to generate a route for the moving body to move through the movement region, based on the movement region information received via a network, and a moving body control unit (450) configured to control movement of the moving body, based on the route. The route generating unit is configured to generate an avoidance route for avoiding a second region including a first region representing a position of an object existing in the movement region and a surrounding region at the first region. The moving body control unit is configured to control the moving body based on the avoidance route.
Abstract: An ensemble learning based method is for a binary classification on an imbalanced dataset. The imbalanced dataset has a minority class comprising positive samples and a majority class comprising negative samples. The method includes: generatively oversampling the imbalanced dataset by synthetically generating minority class examples, thereby generating a generated dataset; using the generated dataset to generate subsamples, and learning a base classifier on each of the subsamples to determine a plurality of base classifiers; and learning a weighted majority vote classifier by combining outputs of the base classifiers. Each of the base classifiers is assigned a weight in such a way that a diversity between the base classifiers on the positive samples is minimized.
Abstract: In order to detect occurrence of an influence on quality of an optical signal due to a non-linear effect of an optical fiber, an optical receiver includes: a demodulation unit that demodulates a received optical signal and outputs a reception signal, and calculates a quality value indicating quality of the optical signal; an extraction unit that extracts, from the reception signal, transmission power being a value indicating optical power at a time of transmitting the optical signal; an arithmetic unit that determines a change rate of the quality value to the transmission power; and a monitoring unit that determines, based on a comparison result between the change rate and a predetermined threshold, an influence of a non-linear effect in the optical signal.
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media of communication. A terminal device receives, from a network device, a scheduling for a set of PUSCH transmissions in DCI, determines a first subset of SRS resources in a first SRS resource set and a second subset of SRS resources in a second SRS resource set, at most one of the first subset of SRS resources and the second subset of SRS resources comprising no SRS resource, and transmit, to a network device, the set of PUSCH transmissions based on the at least one of the first subset of SRS resources and the second subset of SRS resources. In this way, single DCI based multi-TRP PUSCH repetition scheme is provided with reduced overhead and increased flexibility.
Abstract: A measuring apparatus including: a transmission part transmitting a probe packet wherein a communication apparatus to be measured is arranged in a communication path destined for a destination-communication apparatus, a reception part receiving a response packet from destination-communication apparatus in response to the probe packet, a time-measuring part measuring time, an analyzing part analyzing the response packet, an output part outputting an analysis result, the analyzing part calculating analysis result based on measuring result of the time-measuring part.
Abstract: A mobility management apparatus (10) is a mobility management apparatus that establishes a communication connection, via a network connected on the basis of cooperation between communication providers in a roaming country and a home country which has a plurality of time zones, with a connection destination that is selected from a plurality of session management apparatuses in the home country, the mobility management apparatus including at least one processor (C1), the at least one processor (C1) carrying out a selection process (S11) for selecting the connection destination, on the basis of time zone information indicating a time zone to which each of the plurality of session management apparatuses belongs.
Abstract: The learning device includes a metric space learning unit and a case example storage unit. The metric space learning unit learns a metric space including feature vectors extracted from attributed image data, for each combination of different attributes, using the attributed image data to which attribute information is assigned. The case example storage unit computes the feature vector from the image data for case example to store the computed feature vector as a case example associated with the metric space, and stores additional information associated with the case example.
Abstract: A person state detection apparatus (10) according to the present disclosure includes a skeleton detection unit (11) for detecting a two-dimensional skeletal structure of a person based on a two-dimensional image acquired from a camera, an aggregation unit (12) for aggregating skeleton information based on the two-dimensional skeletal structure detected by the detection unit (11) for each predetermined area in the two-dimensional image, and a state detection unit (13) for detecting a state of a target person for each predetermined area in the two-dimensional image based on the skeleton information aggregated by the aggregation unit (12).
Abstract: An estimation apparatus includes an acquisition unit and an estimation unit. The acquisition unit acquires an image. The estimation unit estimates the number of target objects included in a target region being at least part of the acquired image by using a learned model. Input data of the model are an image. Output data of the model include likelihood data and numerical data. The likelihood data indicate a likelihood of a one or more target objects being included in each of a plurality of partial regions acquired by dividing the image. The numerical data indicate an estimated number of target objects for a partial region estimated to include one or more target objects out of the plurality of partial regions. The estimation unit estimates the number of target objects included in a target region by using the likelihood data and the numerical data.
Abstract: A phase shifter includes: transmission channels that have one ends connected to an antenna element, are formed with a gap, and have different lengths; movable electrodes that are provided to the gaps, and move in a direction parallel to the transmission channels to be switched to an on-state in which the movable electrode overlaps transmission channel end portions on both ends of a corresponding one of the gaps and is inductively coupled with the transmission channel end portions and to an off-state in which the movable electrode does not overlap at least one of the transmission channel end portions on both ends of the corresponding gap and is not inductively coupled with the at least one of the transmission channel end portions; and MEMS mechanisms that change a phase difference by switching the movable electrodes to one of the on-state and the off-state to switch lengths of the transmission channels.
Abstract: Provided is a work management device including an acquisition unit that acquires information indicating login to a system using a first terminal and an operation history of the first terminal occurring after login to the system, a specifying unit that specifies a non-operation period of a terminal from the operation history of the first terminal, and a calculation unit that calculates working hours including the non-operation period of the terminal according to a length of the non-operation period of the terminal.
Abstract: An anomaly detection device that includes an extraction unit that acquires sensor data from a sensor installed in footwear and extract a gait feature amount characteristic in gait of a pedestrian wearing the footwear by using the sensor data, and a detection unit that detects an anomaly in a foot of the pedestrian walking wearing the footwear based on the gait feature amount extracted by the extraction unit.
Abstract: In order to detect a detailed walking event in both legs on the basis of a physical quantity that relates to leg motion measured by a sensor mounted on one leg, there is provided a detection device including: an extraction unit for generating time-series data that accompany walking, using sensor data based on a physical quantity that relates to leg motion measured by a sensor installed on one leg part of a walking person, and extracting a walking waveform from the generated time-series data; and a detection unit for detecting a walking event in both legs of the walking person from the walking waveform extracted by the extraction unit.
Type:
Application
Filed:
December 14, 2023
Publication date:
April 4, 2024
Applicant:
NEC Corporation
Inventors:
Chenhui HUANG, Kenichiro FUKUSHI, Zhenwei WANG