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公开(公告)号：US20240187763A1
公开(公告)日：2024-06-06
申请号：US18286415
申请日：2021-04-21
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kengo SHINTAKU , Takuya OHARA , Fumikazu INUZUKA , Takuya ODA , Katsuaki HIGASHIMORI
CPC classification number: H04Q11/0062 , H04B10/27 , H04Q2011/0064 , H04Q2011/0086
Abstract: A transmission device, which is provided between user devices and transmits a client signal transmitted by the user devices through an optical transmission network, the transmission device comprising: a setting unit of setting a path having a band for accommodating the client signal obtained from a monitoring result of a control signal transmitted and received at a time of negotiation between the user devices; and a transfer unit of transferring the client signal using the path set by the setting unit.
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公开(公告)号：US20230344753A1
公开(公告)日：2023-10-26
申请号：US18028042
申请日：2020-09-25
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Takuya ODA , Takuya OHARA , Fumikazu INUZUKA , Takafumi TANAKA , Masayuki SHIMODA
Abstract: Distribution devices are each connected to a single or a plurality of line switching networks and a single or a plurality of packet switching networks, selects either the line switching network or the packet switching network as the distribution destination on the basis of distribution policy information in a case where data to which the service providing device or the calculation device is set as a transmission destination, and transmits the received data to the selected switching network is received, and the distribution device captures the received data on the basis of the aggregation policy information and transmit the data to the service providing device or the calculation device corresponding to the transmission destination of the captured data in a case where data transmitted by the other distribution device is received from the line switching network or the packet switching network.
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公开(公告)号：US20230232307A1
公开(公告)日：2023-07-20
申请号：US18029722
申请日：2020-10-22
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Takafumi Tanaka , Takuya OHARA , Fumikazu INUZUKA , Takuya ODA , Masayuki SHIMODA
IPC: H04W40/04 , H04B10/114 , H04W72/0446
CPC classification number: H04W40/04 , H04B10/114 , H04W72/0446
Abstract: An optical path design device includes: a search unit configured to search for one or more route possibilities from a start point to an end point in an optical network including one or more transmission paths as links and a plurality of node devices as nodes on the basis of topology information of the optical network, information on the start point, and information on the end point; a time derivation unit configured to derive available time which is time at which a frequency band including one or more frequency slots becomes available for communication for each of the transmission paths or the node devices included in the route; and a design unit configured to select the route from the one or more route possibilities that have been searched for on the basis of the available time derived for each of the transmission paths or the node devices and select a frequency band of an optical signal to be transmitted through an optical path in the selected route.
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公开(公告)号：US20220321210A1
公开(公告)日：2022-10-06
申请号：US17632589
申请日：2019-08-05
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kei KITAMURA , Fumikazu INUZUKA , Kengo SHINTAKU , Takuya ODA , Takafumi TANAKA , Masahito TOMIZAWA
IPC: H04B10/032
Abstract: A transmission apparatus includes a control unit for carrying out processing to secure a resource for a standby system path in response to detection of a sign of failure in an active system path.
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公开(公告)号：US20220006577A1
公开(公告)日：2022-01-06
申请号：US17293743
申请日：2019-11-18
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Kei Kitamura , Fumikazu INUZUKA , Akira Hirano , Masahito TOMIZAWA , Takuya OHARA
Abstract: A transmission apparatus includes redundant first communication devices configured to communicate with a communication apparatus provided in a first network, and redundant second communication devices configured to communicate with a communication apparatus provided in a second network. The second communication devices include respective first ends that are ends of redundant communication paths of the first communication devices, and the first communication devices include respective second ends that are ends of redundant communication paths of the second communication devices.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240235683A1
公开(公告)日：2024-07-11
申请号：US18561510
申请日：2021-05-21
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Fumikazu INUZUKA
CPC classification number: H04B10/27 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0075
Abstract: An aspect of the present invention is a communication route allocation device including a route possibility extraction unit configured to extract connectable possible routes on the basis of utilization condition information of a network from among optical path routes connecting start points to end points of optical paths accommodating communication demand in the network, a core selection unit configured to select a core, a link, and the optical path route to accommodate the optical paths by leveling wavelength utilization conditions over the entire network on the basis of utilization condition information of multicore fibers of all links in the network or the possible routes, and a wavelength selection unit configured to select a wavelength to be used for the core, the link, and the optical path route selected by the route possibility extraction unit and the core selection unit.
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公开(公告)号：US20240056179A1
公开(公告)日：2024-02-15
申请号：US17766451
申请日：2019-10-30
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kei KITAMURA , Fumikazu INUZUKA , Kengo SHINTAKU , Takafumi TANAKA , Takuya ODA
IPC: H04B10/032 , H04Q11/00
CPC classification number: H04B10/032 , H04Q11/0062 , H04Q2213/08 , H04Q2011/0081
Abstract: A transmission apparatus includes a first communication unit, a second communication unit, a detection unit, a control unit, and a selection unit. The first communication unit uses a first path for communication, when electric power is supplied. The second communication unit uses a second path for communication, when electric power is supplied. The detection unit detects a fault predictive sign. The control unit supplies no electric power to the second communication unit when the detection unit does not detect the fault predictive sign. The control unit starts supplying electric power to the second communication unit and performs normality confirmation of the second path when the detection unit detects the fault predictive sign, before switching from the first path to the second path. The selection unit selects and outputs, when the first communication unit and the second communication unit have received signals, either the signal received by the first communication unit or the signal received by the second communication unit.
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公开(公告)号：US20240028552A1
公开(公告)日：2024-01-25
申请号：US18025129
申请日：2020-09-14
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takuya OHARA , Takuya ODA , Fumikazu INUZUKA , Takafumi TANAKA , Masayuki SHIMODA
Abstract: One aspect of the present invention is an information processing system including a computer installed in a computer base, a first transceiver connected to the computer, a second transceiver installed in a user base used by a user, a device connected to the second transceiver, a network configured to perform communication between a plurality of the first transceivers and the second transceiver, and a controller configured to control connection between one of the plurality of the first transceivers and the second transceiver, in which the controller is configured to control connection between one of the plurality of the first transceivers and the second transceiver via the network having a circuit switching function.
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公开(公告)号：US20230336629A1
公开(公告)日：2023-10-19
申请号：US18025524
申请日：2020-09-14
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Takuya OHARA , Takuya ODA , Fumikazu INUZUKA , Takafumi TANAKA , Masayuki SHIMODA
IPC: H04L67/141 , H04L41/084
CPC classification number: H04L67/141 , H04L41/0846
Abstract: One aspect of the present invention is an information processing system that includes a computing machine installed in a computing machine base, and a first transmitting/receiving apparatus connected to the computing machine, a second transmitting/receiving apparatus installed in a user base that is used by a user, and a device connected to the second transmitting/receiving apparatus, and a control apparatus configured to control connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus. In the information processing system, the control apparatus is configured to change the connection between the first transmitting/receiving apparatus and the second transmitting/receiving apparatus, and copy the state of the pre-change computing machine from the pre-change computing machine into the post-change computing machine.
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公开(公告)号：US20220109449A1
公开(公告)日：2022-04-07
申请号：US17311646
申请日：2019-12-04
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Fumikazu INUZUKA , Kei KITAMURA , Akira HIRANO , Masahito TOMIZAWA , Takuya OHARA
Abstract: A first reception processing unit performs a process of receiving a first signal transmitted on a first transmission line, a second reception processing unit performs a process of receiving a second signal transmitted on a second transmission line, and an output speed control unit controls output speeds of the first signal and the second signal subjected to the reception process. A system switching unit selects and outputs the first signal or the second signal subjected to a reception process, and an output processing unit performs a process for output to another apparatus on the output from the system switching unit. A reception side clock output unit outputs a clock signal giving a processing timing of each process, and a clock frequency control unit adjusts a frequency of the clock signal giving the processing timing to the output processing unit. A frequency adjustment range calculation unit calculates an adjustment range of the frequency based on frequency deviation accuracy of the reception side clock output unit, frequency deviation accuracy of a transmission side clock output unit that outputs a clock signal giving a processing timing to a transmission process at a transmission apparatus on the transmission side, and a prescribed value of a frequency deviation.
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