-
公开(公告)号：US10181921B2
公开(公告)日：2019-01-15
申请号：US15527274
申请日：2015-11-26
发明人： Masahiro Yokota , Takafumi Hamano , Takashi Kotanigawa , Kaoru Arai , Kei Kitamura , Hideki Maeda , Yoshiaki Yamada , Takuya Ohara , Kengo Shintaku
IPC分类号： H04J3/16 , H04J14/08 , H04L12/801 , H04L12/939 , H04B10/03 , H04J3/14 , H04J14/00 , H04J14/02
摘要： 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 subcarriers 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.
-
公开(公告)号：US20150229329A1
公开(公告)日：2015-08-13
申请号：US14428084
申请日：2013-09-06
CPC分类号： H03M13/1105 , H03M7/3082 , H03M7/6023 , H03M13/1515 , H03M13/353 , H03M13/373 , H03M13/611 , H03M13/618 , H03M13/6561
摘要： An object is to enable erasure correction even at the time of a degeneration operation and reduce the number of necessary parallel media through dynamic setting of degree of redundancy. A parallel data encoding/decoding system performs parallel data transmissions using a plurality of lanes from an encoder to a decoder. The encoder encodes products of elements of an encoding vector M of symbols of each lane and a state vector U indicating validity of the symbols, and transmits the state vector U along with a transmission vector Y obtained through the encoding. The decoder decodes a subset Msub constituted of valid elements of the encoding vector M using a received reception vector Y′, the received state vector U, and an erasure vector E indicating whether each element of the transmission vector has been erased in a transmission/reception section.
摘要翻译： 目的是即使在退化操作时也能够进行擦除校正，并且通过动态设置冗余度来减少所需的并行介质的数量。 并行数据编码/解码系统使用从编码器到解码器的多个通道来执行并行数据传输。 编码器对每个通道的符号的编码矢量M的元素的乘积和表示符号的有效性的状态向量U进行编码，并且将状态矢量U与通过编码获得的发送矢量Y一起发送。 解码器使用接收到的接收矢量Y'，接收状态向量U和指示传输矢量的每个要素是否在发送/接收中被擦除的擦除矢量E来解码由编码矢量M的有效元素构成的子集Msub 部分。
-
公开(公告)号：US10063321B2
公开(公告)日：2018-08-28
申请号：US15528629
申请日：2015-11-27
发明人： Kei Kitamura , Takashi Kotanigawa , Takafumi Hamano , Kaoru Arai , Masahiro Yokota , Hideki Maeda , Yoshiaki Yamada , Takuya Ohara , Kengo Shintaku
IPC分类号： H04B10/50 , H04J14/08 , H04B10/40 , H04B10/516
摘要： 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.
-
公开(公告)号：US20160056886A1
公开(公告)日：2016-02-25
申请号：US14377555
申请日：2013-02-21
IPC分类号： H04B10/032 , H04L12/927 , H04L12/939 , H04L12/741 , H04L12/801 , H04J3/16 , H04Q11/00
CPC分类号： 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
摘要： It is an object to provide a technique capable of using a single framer as a necessary framer and causing the framer to be shared among a plurality of transmission destinations and priorities when coping with a plurality of transmission destinations or priorities and a change in a bandwidth of a physical lane that is caused by a change in a modulation scheme or a change in the number of wavelengths.A multilane transmission device that allocates client signals based on a transmission destination or a priority, decides the number of virtual lanes necessary for transmission of the client signals allocated based on each transmission destination or each priority, allocates the client signals allocated based on each transmission destination or each priority to the virtual lanes whose number has been decided, and frames the client signals allocated to the virtual lanes as transport frames, multiplexes the virtual lanes into a physical lane, and transmits the framed transport frames by using the physical lane.
摘要翻译： 本发明的目的是提供一种能够使用单个成帧器作为必要成帧器的技术，并且当应对多个发送目的地或优先级时，使成帧器在多个发送目的地和优先级之间共享，并且带宽的变化 由调制方案的改变或波长数的变化引起的物理通道。 基于发送目的地或优先级分配客户端信号的多路传输装置决定基于每个发送目的地或每个优先级分配的客户端信号的发送所需的虚拟通道的数量，分配基于各发送目的地分配的客户端信号 或每个优先级到其已经被确定的虚拟通道的每个优先级，并将分配给虚拟通道的客户机信号作为传输帧进行帧化，将虚拟通道复用到物理通道中，并且通过使用物理通道发送成帧的传输帧。
-
公开(公告)号：US11509392B2
公开(公告)日：2022-11-22
申请号：US17252833
申请日：2019-06-05
IPC分类号： H04B10/079 , H04B10/29 , H04J3/16
摘要： 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.
-
公开(公告)号：US10250348B2
公开(公告)日：2019-04-02
申请号：US15526927
申请日：2015-11-26
发明人： Yoshiaki Yamada , Kengo Shintaku , Takuya Ohara , Kei Kitamura , Takashi Kotanigawa , Takafumi Hamano , Kaoru Arai , Masahiro Yokota , Hideki Maeda
摘要： 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.
-
公开(公告)号：US10230457B2
公开(公告)日：2019-03-12
申请号：US15526835
申请日：2015-11-27
发明人： Kei Kitamura , Takafumi Hamano , Takashi Kotanigawa , Kaoru Arai , Masahiro Yokota , Hideki Maeda , Yoshiaki Yamada , Takuya Ohara , Kengo Shintaku
摘要： 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.
-
公开(公告)号：US10122462B2
公开(公告)日：2018-11-06
申请号：US15126557
申请日：2014-11-19
发明人： Takuya Ohara , Kei Kitamura , Yoshiaki Kisaka , Shigeki Aisawa , Masahiro Suzuki , Etsushi Yamazaki , Tomoyoshi Kataoka , Masahito Tomizawa , Yoshiaki Yamada , Mitsuhiro Teshima , Akira Hirano
摘要： 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.
-
公开(公告)号：US10193566B2
公开(公告)日：2019-01-29
申请号：US14428084
申请日：2013-09-06
摘要： An object is to enable erasure correction even at the time of a degeneration operation and reduce the number of necessary parallel media through dynamic setting of degree of redundancy. A parallel data encoding/decoding system performs parallel data transmissions using a plurality of lanes from an encoder to a decoder. The encoder encodes products of elements of an encoding vector M of symbols of each lane and a state vector U indicating validity of the symbols, and transmits the state vector U along with a transmission vector Y obtained through the encoding. The decoder decodes a subset Msub constituted of valid elements of the encoding vector M using a received reception vector Y′, the received state vector U, and an erasure vector E indicating whether each element of the transmission vector has been erased in a transmission/reception section.
-
公开(公告)号：US11581988B2
公开(公告)日：2023-02-14
申请号：US17257759
申请日：2019-06-24
发明人： Takafumi Tanaka , Tetsuro Inui , Akira Hirano , Yoshiaki Yamada
IPC分类号： H04L1/22 , H04L1/00 , H04L1/1809
摘要： 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.
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.023 秒)
