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1.发明公开DIGITAL TRANSMISSION SYSTEM AND DIGITAL TRANSMISSION METHOD 审中-公开DIGITALESÜBERTRAGUNGSSYSTEMUND DIGITALESÜBERTRAGUNGSVERFAHREN
公开(公告)号：EP2106051A4
公开(公告)日：2011-06-22
申请号：EP08703294
申请日：2008-01-16
发明人： KISAKA YOSHIAKI , OHARA TAKUYA , AISAWA SHIGEKI , MIYAMOTO YUTAKA , TAKEI KAZUHITO , ENDOH YASUYUKI , MIURA KATSUYOSHI , NIKAIDO TADANOBU , TOMIZAWA MASAHITO
CPC分类号： H04J3/1664 , H04J3/07 , H04J3/14 , H04J2203/0085 , H04J2203/0089
摘要： A digital transmission system having at least a client device and a transmission device and rate-adjusting a client signal transmitted from the client device to the transmission device as necessary, to accommodate/multiplex the signal in a frame, is provided. The transmission device has a rate adjusting unit and a framer processing unit. The rate adjusting unit encapsulates the client signal using a predetermined frame structure, and inserts an idle pattern, as necessary, to perform rate adjustment to a bit rate that can be accommodated in the frame. The framer processing unit accommodates/multiplexes the signal into the frame after the rate adjustment. The digital transmission system accommodates, or accommodates and multiplexes, a bit string of the client signal directly in a payload portion, accommodates, or accommodates and multiplexes, the bit string in the payload portion after subjecting it to a reversible digital signal processing.
摘要翻译： 提供一种数字传输系统，其至少具有客户端设备和传输设备，并且根据需要对从客户端设备传输到传输设备的客户端信号进行速率调整，以适应/复用帧中的信号。 发送装置具有速率调整单元和成帧器处理单元。 速率调整单元使用预定的帧结构来封装客户端信号，并且根据需要插入空闲模式，以对可以容纳在帧中的比特率执行速率调整。 成帧器处理单元在速率调整之后将信号容纳/复用到帧中。 数字传输系统在经过可逆数字信号处理之后，直接在有效载荷部分中容纳或容纳和复用客户端信号的位串，容纳或复用有效负载部分中的位串。
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公开(公告)号：EP3208957A4
公开(公告)日：2018-06-20
申请号：EP15863525
申请日：2015-11-26
发明人： YAMADA YOSHIAKI , SHINTAKU KENGO , OHARA TAKUYA , KITAMURA KEI , KOTANIGAWA TAKASHI , HAMANO TAKAFUMI , ARAI KAORU , YOKOTA MASAHIRO , MAEDA HIDEKI
CPC分类号： H04J3/0652 , H04J3/0623 , H04J3/07 , H04J3/1652 , H04J14/00 , H04J14/02 , H04J14/08 , H04J2203/006
摘要： An optical transport system includes: a transport frame generation unit that divides a transport frame in which a plurality of client signals are accommodated into a plurality of transmission signals; a plurality of subcarrier transmission units that convert the plurality of transmission signals into optical signals using different optical carriers and transmit the converted optical signals; a plurality of subcarrier reception units that receive the transmitted optical signals and convert the optical signals into reception signals; a transport frame termination unit that combines the reception signals to restore the transport frame; a time-demultiplexing processing unit that time-demultiplexes the restored transport frame to be separated into the plurality of client signals; and a time slot control unit that determines a new time slot allocation when time-multiplexing the plurality of 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：EP3226449A4
公开(公告)日：2018-07-25
申请号：EP15862960
申请日：2015-11-27
发明人： KITAMURA KEI , KOTANIGAWA TAKASHI , HAMANO TAKAFUMI , ARAI KAORU , YOKOTA MASAHIRO , MAEDA HIDEKI , YAMADA YOSHIAKI , OHARA TAKUYA , SHINTAKU KENGO
摘要： There is provided a framer 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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4.发明公开LIGHT-RECEIVING DEVICE AND PHASE CYCLE SLIP REDUCTION METHOD 审中-公开EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN
公开(公告)号：EP2930867A4
公开(公告)日：2016-10-26
申请号：EP14742856
申请日：2014-01-24
发明人： HORIKOSHI KENGO , SHIBAHARA KOHKI , YAMAZAKI ETSUSHI , YOSHIDA MITSUTERU , ISHIHARA KOICHI , KOBAYASHI TAKAYUKI , KISAKA YOSHIAKI , OHARA TAKUYA , TOMIZAWA MASAHITO , KATAOKA TOMOYOSHI
IPC分类号： H04B10/61
CPC分类号： H04B10/6165 , H04L7/0041 , H04L7/0075 , H04L27/066 , H04L27/389
摘要： An optical receiving device receives an optical signal that has been modulated by means of phase modulation or quadrature amplitude modulation, converts the received optical signal into an electrical signal using coherent detection, and performs phase compensation on the converted received signal, and includes: a carrier phase estimation unit that estimates carrier phase errors in a received symbol string obtained from the received signal; a gain adjustment unit that performs gain adjustment on symbols input into the carrier phase adjustment unit; a phase cycle slip reduction unit that, by performing statistical processing on an output from the carrier phase estimation unit, detects general noise that causes a phase cycle slip, and reduces the phase cycle slip; and a phase compensation circuit that compensates carrier phase errors contained in the received signal using an output from the carrier phase estimation unit.
摘要翻译： 光接收装置接收通过相位调制或正交幅度调制调制的光信号，使用相干检测将接收到的光信号转换为电信号，并对转换的接收信号进行相位补偿，并包括：载波 估计从接收信号获得的接收符号串中的载波相位误差的相位估计单元; 增益调整单元，对输入到所述载波相位调整单元的符号进行增益调整; 通过对载波相位推定部的输出进行统计处理，检测引起相位滑动的一般噪声，并减少相位滑动的相位滑移减小部; 以及相位补偿电路，其使用来自载波相位估计单元的输出来补偿接收信号中包含的载波相位误差。
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公开(公告)号：EP3208956A4
公开(公告)日：2018-03-28
申请号：EP15862214
申请日：2015-11-27
发明人： KITAMURA KEI , HAMANO TAKAFUMI , KOTANIGAWA TAKASHI , ARAI KAORU , YOKOTA MASAHIRO , MAEDA HIDEKI , YAMADA YOSHIAKI , OHARA TAKUYA , SHINTAKU KENGO
摘要： A framer is in a transmission device which allocates a plurality of time slots of an optical channel to a plurality of logical paths each having a transmission priority, allocates a plurality of client signals received by the plurality of logical paths to the plurality of time slots allocated to the plurality of logical paths, and transmits the plurality of client signals by a plurality of optical subcarriers that use a plurality of optical wavelengths corresponding to the plurality of time slots, and 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：EP3107227A4
公开(公告)日：2018-02-28
申请号：EP14885881
申请日：2014-11-19
发明人： OHARA TAKUYA , KITAMURA KEI , KISAKA YOSHIAKI , AISAWA SHIGEKI , SUZUKI MASAHIRO , YAMAZAKI ETSUSHI , KATAOKA TOMOYOSHI , TOMIZAWA MASAHITO , YAMADA YOSHIAKI , TESHIMA MITSUHIRO , HIRANO AKIRA
CPC分类号： H04B10/40 , H04B10/27 , H04B10/5161 , H04B10/60 , H04J3/00 , H04J3/1652 , H04J14/00
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.
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公开(公告)号：EP3208958A4
公开(公告)日：2018-03-28
申请号：EP15863549
申请日：2015-11-26
发明人： YOKOTA MASAHIRO , HAMANO TAKAFUMI , KOTANIGAWA TAKASHI , ARAI KAORU , KITAMURA KEI , MAEDA HIDEKI , YAMADA YOSHIAKI , OHARA TAKUYA , SHINTAKU KENGO
CPC分类号： H04J3/1652 , H04B10/03 , H04J3/14 , H04J14/00 , H04J14/02 , H04J14/08 , H04L47/34 , H04L49/552
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 54 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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公开(公告)号：EP2651056A4
公开(公告)日：2014-03-19
申请号：EP11846946
申请日：2011-12-09
CPC分类号： H04J3/0658 , H04J3/07 , H04J3/1652 , H04J14/0227 , H04Q11/0005 , H04Q2011/0045
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9.发明公开
公开(公告)号：EP1713151A4
公开(公告)日：2010-02-03
申请号：EP05709708
申请日：2005-02-03
发明人： MORI KUNIHIKO , SATO KENJI , OHARA TAKUYA
IPC分类号： H01S5/065 , G02F1/365 , H01S3/00 , H01S3/067 , H01S5/0625 , H01S5/50 , H04J14/00 , H04J14/02
CPC分类号： H01S5/065 , H01S3/005 , H01S3/0064 , H01S3/06754 , H01S5/06255 , H04B10/506 , H04J14/02
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公开(公告)号：EP2051420A4
公开(公告)日：2009-11-04
申请号：EP07807741
申请日：2007-09-21
发明人： KISAKA YOSHIAKI , AISAWA SHIGEKI , TAKAHASHI TETSUO , OHARA TAKUYA , KOGA MASAFUMI , TOMIZAWA MASAHITO , MIYAMOTO YUTAKA
CPC分类号： H04J3/1664 , H04J3/07 , H04L25/14
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