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17 条记录 (耗时 0.017 秒)

    Communication system and ONU system
    1.
    发明授权
    Communication system and ONU system 有权

    公开(公告)号：US12088978B2

    公开(公告)日：2024-09-10

    申请号：US17911736

    申请日：2020-03-19

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Tomoya Hatano ,  Keita Takahashi ,  Naotaka Shibata ,  Hiroko Nomura

    IPC分类号： H04Q11/00 ,  H04B10/61

    CPC分类号： H04Q11/0067 ,  H04B10/614 ,  H04Q2011/0079

    摘要： One aspect of the present invention is a communication system for a passive optical network that includes: an OLT system including a first OLT (Optical Line Terminal), a second OLT, and an OLT control apparatus that controls the first OLT and the second OLT; a plurality of splitters that are connected between the first OLT and the second OLT using optical communication channels; and ONU systems that are connected to the respective splitters using optical communication channels, and each include a first session establishing unit that establishes a session with the first OLT, a second session establishing unit that establishes a session with the second OLT, and a signal processing unit that executes signal processing of an ONU (Optical Network Unit) based on an optical signal output from the first session establishing unit or the second session establishing unit.

    Communication apparatus and communication method
    2.
    发明授权
    Communication apparatus and communication method 有权

    公开(公告)号：US11611470B2

    公开(公告)日：2023-03-21

    申请号：US17258416

    申请日：2019-07-05

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Takamitsu Tochino ,  Takashi Mitsui ,  Tomoya Hatano

    IPC分类号： H04L41/0654 ,  H04L12/44 ,  H04L41/0686 ,  H04Q11/00

    摘要： A communication device including a first communication device and a plurality of second communication devices in an optical access system in which a first communication device and the plurality of second communication devices perform communications with each other under a time division multiple access scheme includes an Ethernet controller configured to implement the communications as Ethernet (registered trademark) communications, and a link failure processing unit configured to output, in response to reception of a link failure notification for notifying occurrence of a link failure in the communications from the first communication device, a termination instruction to terminate data transmission when the communication device is performing the data transmission to the first communication device, and a start instruction to start the data transmission after recovery from the link failure when the communication device is not performing the data transmission to the first communication device.

    Information management system and information management method
    4.
    发明授权
    Information management system and information management method 有权

    公开(公告)号：US11388056B2

    公开(公告)日：2022-07-12

    申请号：US17052884

    申请日：2019-05-15

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Keita Nishimoto ,  Tomoya Hatano ,  Kota Asaka

    IPC分类号： H04L41/0866 ,  H04L41/0813 ,  H04L41/084 ,  H04L41/085 ,  H04L41/0853

    摘要： An information management system includes a first information storage configured to store first attribute information regarding a communication device, a second information storage configured to store second attribute information regarding the communication device, a related information storage configured to store information representing a relationship between the first attribute information and the second attribute information, a detector configured to detect update, addition, or deletion of the first attribute information or the second attribute information, and an updater configured to output a command for the update of the second attribute information associated with the first attribute information to the second information storage when the update of the first attribute information is detected, and to output a command for the update of the first attribute information associated with the second attribute information to the first information storage when the update of the second attribute information is detected.

    Failure determination system and failure determination method
    7.
    发明授权
    Failure determination system and failure determination method 有权

    公开(公告)号：US11876555B2

    公开(公告)日：2024-01-16

    申请号：US17601706

    申请日：2019-04-23

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Tomoya Hatano ,  Takumi Harada ,  Hiroo Suzuki

    IPC分类号： H04B10/07 ,  H04B10/079 ,  H04B10/071

    CPC分类号： H04B10/0791 ,  H04B10/071 ,  H04B10/0793

    摘要： A breakdown determination system includes a switching device that switches a transmission path of optical signals between an upper network and a lower network, one or more intermediate communication devices that relay communication between the upper network and the lower network, a selection device that selects a standby port of the intermediate communication devices, a measurement device that connects to the selected standby port via the switching device and measures an optical signal of the connected standby port, a determination device that determines whether an intermediate communication device including the selected standby port breaks down based on a result of measuring the optical signal, and a storage device that stores a result of determining whether the intermediate communication device breaks down.

    Systems and methods for collecting metadata and sensor terminals
    8.
    发明授权
    Systems and methods for collecting metadata and sensor terminals 有权

    公开(公告)号：US12058018B2

    公开(公告)日：2024-08-06

    申请号：US18026638

    申请日：2020-09-30

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Shinya Tamaki ,  Ryota Shiina ,  Tetsuya Suzuki ,  Yasutaka Kimura ,  Tomohiro Taniguchi ,  Sei Kou ,  Tomoya Hatano

    IPC分类号： H04L43/08 ,  G16Y20/20 ,  G16Y40/10

    CPC分类号： H04L43/08 ,  G16Y20/20 ,  G16Y40/10

    摘要： An object of the present disclosure is to collectively collect sensing data and metadata regarding normality of equipment by utilizing light communication protocol.
    The present disclosure is a system that collects sensing data from a sensor terminal in a data collection unit using a data collection network, the sensor terminal including a detection unit configured to detect metadata regarding internal information of the sensor terminal other than a sensor device that detects sensing data and equipment information and transmitting the metadata detected by the detection unit using an extended area or an optional area defined in communication protocol for transmitting the sensing data or the equipment information in a frame defined in the communication protocol, and the data collection unit associating the sensing data, the equipment information, and the metadata on the basis of information for identifying the sensor terminal described in the frame.

    Communication apparatus and communication method
    9.
    发明授权
    Communication apparatus and communication method 有权

    公开(公告)号：US11997171B2

    公开(公告)日：2024-05-28

    申请号：US17631198

    申请日：2019-08-02

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Tomoya Hatano ,  Manabu Yoshino

    IPC分类号： H04L67/00 ,  H04L12/44

    CPC分类号： H04L67/34 ,  H04L12/44

    摘要： A communication device in a communication system in which functions that are converted to software are configured as a plurality of components, and the functions are realized as a result of the components being respectively executed by a plurality of communication devices that are connected to a network, the communication device including a sorting unit configured to acquire a signal that is transmitted by a first component and transmit the signal to a second component indicated by destination information that is added to the signal by the first component.