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    BANDWIDTH MEASUREMENT APPARATUS, DATA TRANSMISSION APPARATUS, AND METHOD
    11.
    发明申请
    BANDWIDTH MEASUREMENT APPARATUS, DATA TRANSMISSION APPARATUS, AND METHOD 有权

    公开(公告)号：US20250126038A1

    公开(公告)日：2025-04-17

    申请号：US18833972

    申请日：2022-03-08

    Applicant: NEC Corporation

    Inventor： Wenjing CUI ,  Nobuo FUWA ,  Yasuhiro MIZUKOSHI ,  Yasunori FUTATSUGI ,  Kiyotaka KAJI ,  Kazuhiro FUKUOKA ,  Kenichi SAWADA

    IPC: H04L43/0882

    Abstract: Data transmission means divides data into one or more transmission packets in units of a predetermined size in conformity with a predetermined protocol, transmits the transmission packets to a reception apparatus, and receives an acknowledgement packet returned from the reception apparatus. Data size acquisition means acquires a data size of transmission data. Acknowledgement reception time acquisition means acquires a reception time of an acknowledgement packet. An available bandwidth calculation means calculates the available bandwidth in a network using the reception time of the acknowledgement packet when a sum of the data sizes of the transmission data in the predetermined time is double or more the predetermined size.

    COMMUNICATION CONTROL DEVICE, COMMUNICATION CONTROL SYSTEM, COMMUNICATION CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PROGRAM
    12.
    发明公开
    COMMUNICATION CONTROL DEVICE, COMMUNICATION CONTROL SYSTEM, COMMUNICATION CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING PROGRAM 审中-公开

    公开(公告)号：US20240031535A1

    公开(公告)日：2024-01-25

    申请号：US18023294

    申请日：2020-09-30

    Applicant: NEC Corporation

    Inventor： Yasuhiro MIZUKOSHI

    IPC: H04N7/18 ,  H04L9/40

    CPC classification number: H04N7/181 ,  H04L63/0457 ,  H04L65/80

    Abstract: According to an example embodiment, a communication control device (11) includes an acquisition unit (111) configured to acquire first video quality information (I1) of first video data transmitted from a first imaging device (12_1) to the display device (13_1) and second video quality information (I2) of second video data transmitted from a second imaging device (12_1) to the display device (13_1); a band estimation unit (1121) configured to estimate an available communication band of the second video data from the second video quality information (12); a band prediction unit (1122) configured to predict an available communication band of the first video data based on a reception time difference between the first and second video quality information (I1 and I2) and predict a common available communication band based on the prediction result thereof and the estimation result by the band estimation unit (1121); and a determination unit (1123) configured to determine transmission conditions of the respective items of first and second video data based on the available communication band common to the first and second imaging devices (12_1 and 12_2).

    MANAGEMENT SYSTEM, MOBILE BODY, MANAGEMENT DEVICE, VELOCITY NOTIFICATION METHOD, MANAGEMENT METHOD, AND STORAGE MEDIUM HAVING PROGRAM STORED THEREON
    13.
    发明申请
    MANAGEMENT SYSTEM, MOBILE BODY, MANAGEMENT DEVICE, VELOCITY NOTIFICATION METHOD, MANAGEMENT METHOD, AND STORAGE MEDIUM HAVING PROGRAM STORED THEREON 审中-公开

    公开(公告)号：US20190141481A1

    公开(公告)日：2019-05-09

    申请号：US16096381

    申请日：2017-04-14

    Applicant: NEC Corporation

    Inventor： Makoto FUJINAMI ,  Yasuhiro MIZUKOSHI

    IPC: H04W4/029 ,  H04W4/02

    Abstract: A management system, according to one aspect of the present invention, includes: a mobile body that uses a predetermined motion model to estimate, on the basis of the velocity of the own device, the position of an own device after a predetermined period has elapsed; and a management device that uses the predetermined motion model to estimate, on the basis of information about the velocity of the mobile body, the position of the mobile body after the predetermined period has elapsed. The management system is further characterized in that when an error between the position of the own device measured after the predetermined period has elapsed and the estimated position of the own device exceeds a predetermined threshold, the mobile body transmits information about the velocity of the own device to the management device.

    COMMUNICATION CONTROL SYSTEM, COMMUNICATION CONTROL METHOD, AND RECORDING MEDIUM
    14.
    发明申请
    COMMUNICATION CONTROL SYSTEM, COMMUNICATION CONTROL METHOD, AND RECORDING MEDIUM 审中-公开

    公开(公告)号：US20170353360A1

    公开(公告)日：2017-12-07

    申请号：US15541187

    申请日：2016-01-13

    Applicant: NEC CORPORATION

    Inventor： Masahiro HAYASHITANI ,  Yasuhiro MIZUKOSHI

    IPC: H04L12/24 ,  H04L12/26

    Abstract: A communication control system to obtain required reliability for an entire network is provided. The communication control system includes: a means for obtaining, based on a load status of a control device that controls nodes included in a network and receives a content of a control signal sent and received between the nodes as a status notification signal, a capability for processing the status notification signal; a means for determining, based on network status information related to communication on the network, area segments each including an arbitrarily number of the nodes; and a means for calculating, based on the capability, a sending interval of the status notification signal of the node for each of the area segments, and sending the sending interval to the node included in the corresponding area segment.

    NEURAL NETWORK LEARNING DEVICE, METHOD, AND PROGRAM
    20.
    发明申请
    NEURAL NETWORK LEARNING DEVICE, METHOD, AND PROGRAM 有权

    公开(公告)号：US20220076125A1

    公开(公告)日：2022-03-10

    申请号：US17418007

    申请日：2019-10-11

    Applicant: NEC Corporation

    Inventor： Yasuhiro MIZUKOSHI

    IPC: G06N3/08 ,  G06N3/04 ,  G06K9/62

    Abstract: The learning unit 81 learns a neural network. The linearization quantity determination unit 82 determines linearization quantity, which is a parameter included in an activation function used in the neural network, and which is a parameter that brings the activation function closer to a linear function by increasing or decreasing itself. The aggregation unit 83 replaces the activation function, which is determined to converge to a linear function by increasing or decreasing the linearization quantity, with the linear function, and aggregating weights among layers using the replaced linear function. The learning unit 81 calculates evaluation value based on output by the neural network in learning the neural network, and the linearization quantity determination unit 82 changes the linearization quantity when the evaluation value satisfies the predetermined criterion.

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