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公开(公告)号：US20170324472A1
公开(公告)日：2017-11-09
申请号：US15526835
申请日：2015-11-27
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kei KITAMURA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC: H04B10/032 , H04J3/16
Abstract: A framer in a transmission device allocates plural optical channel time slots to a plurality of logical prioritized paths. It allocates received client signals to the allocated time slots, and transmits the client signals by a plurality of optical subcarriers that use a plurality of optical wavelengths corresponding to the plurality of time slots. The framer includes: a time slot allocation unit that, in a case where an optical wavelength corresponding to a time slot allocated to a logical path having a high transmission priority is not used, allocates at least one of the plurality of time slots to the logical path having the high transmission priority while the time slot corresponding to the unused optical wavelength is avoided, to change the time slot allocated to the logical path having the high transmission priority.
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公开(公告)号：US20160261339A1
公开(公告)日：2016-09-08
申请号：US15157189
申请日：2016-05-17
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kei KITAMURA , Kenji HISADOME , Mitsuhiro TESHIMA , Yoshiaki YAMADA , Osamu ISHIDA
IPC: H04B10/032 , H04J3/16 , H04Q11/00
CPC classification number: H04B10/032 , H04J3/1652 , H04J3/1664 , H04J2203/0094 , H04L45/245 , H04L45/28 , H04L45/745 , H04L47/2433 , H04L47/34 , H04L47/745 , H04L47/805 , H04L49/552 , H04Q11/0005 , H04Q11/0062 , H04Q11/0066 , H04Q2011/0045 , H04Q2011/0081 , H04Q2011/0083 , H04Q2011/0086
Abstract: A multilane transmission device that transmits data frames by using a plurality of lanes, comprising: a data frame allocating unit that allocates data frames based on a transmission destination; a flow group information sequence information adding unit that adds flow group information indicating a flow group corresponding to a transmission source and transmission destinations and sequence information indicating a sequence of the data frames to the data frames allocated based on each transmission destination by the data frame allocating unit; and a lane selecting/outputting unit that transmits the data frames having the respective flow group information and the respective sequence information added thereto by the flow group information sequence information adding unit to the transmission destinations by using one or more lanes corresponding to the respective flow group information.
Abstract translation: 一种通过使用多个通道发送数据帧的多路传输装置，包括：数据帧分配单元，其基于发送目的地分配数据帧; 流量组信息序列信息添加单元，其通过数据帧分配将表示对应于发送源的流组的流组信息和发送目的地以及指示数据帧序列的序列信息添加到基于每个发送目的地分配的数据帧 单元; 以及车道选择/输出单元，其通过使用与各个流动组对应的一个或多个车道将具有各个流动组信息和由流动组信息序列信息添加单元附加的各个顺序信息的数据帧发送到发送目的地 信息。
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公开(公告)号：US20170111116A1
公开(公告)日：2017-04-20
申请号：US15126557
申请日：2014-11-19
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takuya OHARA , Kei KITAMURA , Yoshiaki KISAKA , Shigeki AISAWA , Masahiro SUZUKI , Etsushi YAMAZAKI , Tomoyoshi KATAOKA , Masahito TOMIZAWA , Yoshiaki YAMADA , Mitsuhiro TESHIMA , Akira HIRANO
IPC: H04B10/40 , H04B10/60 , H04B10/27 , H04B10/516
CPC classification number: H04B10/40 , H04B10/27 , H04B10/5161 , H04B10/60 , H04J3/00 , H04J3/1652 , H04J14/00
Abstract: A transport apparatus includes: a client signal transceiving unit which transceives a client signal; a line signal transceiving unit which performs electric-optic conversion on a line signal to be transmitted, transmits an optical line signal, performs optic-electric conversion on a received line signal, and outputs an electrical line signal; and a plurality of signal processing units which perform signal processing on the client signal to generate the line signal to be transmitted and perform signal processing on the electrical line signal to generate the client signal. Each of the plurality of signal processing units includes a signal transceiving unit which performs transfer of a branched signal obtained by branching a signal to be transmitted and a merged signal obtained by merging received signals with another signal processing unit, and the signal transceiving unit of each of the plurality of signal processing units and the signal transceiving unit of the other signal processing unit are coupled via an inter-chip wiring.
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公开(公告)号：US20170366288A1
公开(公告)日：2017-12-21
申请号：US15527274
申请日：2015-11-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Masahiro YOKOTA , Takafumi HAMANO , Takashi KOTANIGAWA , Kaoru ARAI , Kei KITAMURA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
IPC: H04J3/16 , H04J14/08 , H04L12/801 , H04L12/939
CPC classification number: H04J3/1652 , H04B10/03 , H04J3/14 , H04J14/00 , H04J14/02 , H04J14/08 , H04L47/34 , H04L49/552
Abstract: A framer in a transmission device that allocates time slots of an optical channel to a logical path, divides client signals received via the logical path to the time slots allocated to the logical path, and transmits the client signals by a plurality of optical suhcarriers using optical wavelengths correlated with the time slots includes: a time slot allocating unit configured to perform a process of reducing a transmission band of the logical path when some of the optical wavelengths are unavailable and changing the time slots allocated to the logical path depending on the reduced transmission band to avoid using the time slots corresponding to the unavailable optical wavelengths.
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Patent Agency Ranking
公开(公告)号：US20170324496A1
公开(公告)日：2017-11-09
申请号：US15526927
申请日：2015-11-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Yoshiaki YAMADA , Kengo SHINTAKU , Takuya OHARA , Kei KITAMURA , Takashi KOTANIGAWA , Takafumi HAMANO , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA
CPC classification number: H04J3/0652 , H04J3/0623 , H04J3/07 , H04J3/1652 , H04J14/00 , H04J14/02 , H04J14/08 , H04J2203/006
Abstract: In the optical transport system a transport frame generator divides a transport frame accommodating plural client signals into plural transmission signals. Subcarrier transmission units convert the signals into optical signals using different optical carriers and transmit the converted optical signals. Subcarrier reception units receive the transmitted optical signals and convert the optical signals into reception signals. A transport frame termination unit combines the reception signals to restore the transport frame. A time-demultiplexing processor time-demultiplexes the restored transport frame to be separated into the client signals. A time slot control unit determines a new time slot allocation when time-multiplexing the client signals in the transport frame and stops supply of electric power to a subcarrier transmission unit and a subcarrier reception unit that transmit and receive an optical signal to which the client signals are not allocated.
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公开(公告)号：US20210160017A1
公开(公告)日：2021-05-27
申请号：US17257759
申请日：2019-06-24
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takafumi TANAKA , Tetsuro INUI , Akira HIRANO , Yoshiaki YAMADA
Abstract: A transmission device includes a frame processing unit, a redundant channel processing unit, a transmission and reception unit, and a channel selection unit. The frame processing unit generates division frames, adds error detection signals to the division frames, and outputs the division frames to which the error detection signals are added to a plurality of data channels. The redundant channel processing unit generates, from the division frames, one or more redundant frames including restoration information that enables restoration of the division frames, and outputs the generated redundant frames to a data channel. The transmission and reception unit outputs the division frames and the redundant frames to a transmission line. The channel selection unit allocates the division frames and the redundant frames to allocable transmission and reception units.
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公开(公告)号：US20210126707A1
公开(公告)日：2021-04-29
申请号：US17252833
申请日：2019-06-05
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takafumi TANAKA , Shokei KOBAYASHI , Seiki KUWABARA , Yoshiaki YAMADA
IPC: H04B10/079 , H04B10/29 , H04J3/16
Abstract: A communication system transmits relay data through a communication path including a plurality of sections in which different communication schemes are used. A relay communication device is provided between a first section and a second section which are adjacent sections. The relay communication device includes a receiving unit receiving the relay data from the first section through a frame of a first communication scheme, and a relaying unit configuring, in a frame of a second communication scheme used to transmit the relay data to a relay destination, signal quality information representing signal quality calculated for a physical link in each of the sections through which the relay data is transmitted before arriving at the relay communication device, and outputting the frame of the second communication scheme to the second section.
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公开(公告)号：US20190273560A1
公开(公告)日：2019-09-05
申请号：US16320065
申请日：2017-07-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kengo HORIKOSHI , Seiji OKAMOTO , Asuka MATSUSHITA , Mitsuteru YOSHIDA , Fukutaro HAMAOKA , Yoshiaki YAMADA , Yoshiaki KISAKA
IPC: H04B10/516 , H04J14/08 , H04B10/60
Abstract: An optical transmitter of an optical data transmission system transmitting data through an optical fiber transmission path includes a main signal generator that converts first transmission data into a predetermined signal format to generate a first signal, a DCSK modulator that DCSK-modulates second transmission data to generate a second signal, a signal-multiplexer that performs time-division multiplexing of the first signal and the second signal, and an electro-optical converter that converts a multiplexed signal obtained by the time-division multiplexing of the signal-multiplexer from an electric signal into an optical signal, and outputs the optical signal to the optical fiber transmission path.
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公开(公告)号：US20170257169A1
公开(公告)日：2017-09-07
申请号：US15528629
申请日：2015-11-27
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kei KITAMURA , Takashi KOTANIGAWA , Takafumi HAMANO , Kaoru ARAI , Masahiro YOKOTA , Hideki MAEDA , Yoshiaki YAMADA , Takuya OHARA , Kengo SHINTAKU
Abstract: There is provided a tray which is connected to a plurality of transmitters that multicarrier-transmit a plurality of parallel signals by optical subcarriers. The framer selects time slots to be allocated to a path to be accommodated such that the number of optical subcarriers corresponding to the time slots satisfies a predetermined condition on the basis of empty time slots which are specified by path accommodation information indicating a correspondence between paths allocated to a client signal and time slots in a signal frame and the optical subcarriers corresponding to the empty time slots indicated by time slot information indicating a correspondence between the time slots and the optical subcarriers, and sets the selected time slot in the path accommodation information. The framer sets a client signal to the time slots on the basis of the path accommodation information.
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