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1. 发明授权

US08861956B2 Apparatus and method for switching paths in a wavelength-multiplexing network 有权
标题翻译：用于在波长复用网络中切换路径的装置和方法
公开(公告)号：US08861956B2
公开(公告)日：2014-10-14
申请号：US13533332
申请日：2012-06-26
申请人： Yasuki Fujii , Ryoichi Mutoh , Toru Katagiri
发明人： Yasuki Fujii , Ryoichi Mutoh , Toru Katagiri
IPC分类号： H04J14/00 , H04J14/02 , H04Q11/00
CPC分类号： H04J14/0295 , H04J14/0269 , H04J14/0283 , H04Q11/0005 , H04Q2011/0039
摘要： An apparatus switches paths in a wavelength-multiplexing network in which a first number of wavelengths each used for a path to transmit an optical signal are multiplexed into an optical fiber. The apparatus includes an entire switching unit and a second number of individual switching units where the second number is smaller than the first number. The entire switching unit is configured to perform a path-switching process for switching a path, simultaneously on all the first number of wavelengths when failures have occurred for all the first number of wavelengths. The second number of individual switching units are each configured to perform the path-switching process individually on one of a third number of wavelengths included in the first number of wavelengths when at least one failure has occurred for the third number of wavelengths where the third numbers is smaller than the first number.
摘要翻译：一种装置切换波长复用网络中的路径，其中每个用于发送光信号的路径的第一数量的波长被复用到光纤中。该装置包括整个开关单元和第二数量的单独开关单元，其中第二数量小于第一数量。整个开关单元被配置为执行用于在所有第一数量的波长发生故障时同时对所有第一数量的波长切换路径的路径切换处理。第二数量的各个开关单元被配置为当对于第三数量的波长发生至少一个故障时，分别在包括在第一波长数中的第三数量波长之一上执行路径切换处理，其中第三数量小于第一个数字。

2. 发明授权

US08594508B2 Optical transmission system 有权
标题翻译：光传输系统
公开(公告)号：US08594508B2
公开(公告)日：2013-11-26
申请号：US13137024
申请日：2011-07-15
申请人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
发明人： Hisao Nakashima , Takeshi Hoshida , Takahito Tanimura , Toru Katagiri , Shoichiro Oda
IPC分类号： H04B10/00
CPC分类号： H04B10/2572 , H04B10/532 , H04B10/5561
摘要： An optical transmission system, where in an optical transmitter a detection bit having a specific pattern set according to the number of bits to be transmitted within one symbol time, is imparted with respect to a transmission signal in which transmission information has been encoded according to a preset format, and an optical signal generated by modulating light according to the transmission signal is transmitted to a transmission line. In an optical receiver, logic inversion or bit swap of received data is detected and compensated by using the detection bit included in the received signal, a decoding process of the compensated received signal is executed. As a result, when an optical signal capable of transmitting multi-bit information within one symbol time is transferred, it is possible to realize excellent transmission characteristics, by reliably compensating an error in received data caused by the modulation format or the multiplex system of the optical signal.
摘要翻译：一种光传输系统，其中在光发射机中，根据在一个符号时间内要发送的比特数的数量，具有特定模式集的检测比特，根据发送信号已被编码的发送信号预设格式和根据发送信号调制光产生的光信号被发送到传输线。在光接收机中，通过使用包含在接收信号中的检测位来检测和补偿接收数据的逻辑反转或位交换，执行经补偿的接收信号的解码处理。结果，当在一个符号时间内能够发送多位信息的光信号被传送时，通过可靠地补偿由调制格式或多路复用系统引起的接收数据中的错误，可以实现优异的传输特性光信号。

3. 发明申请

US20130028592A1 APPARATUS AND METHOD FOR SWITCHING PATHS IN A WAVELENGTH-MULTIPLEXING NETWORK 有权
标题翻译：用于在波长多重网络中切换波段的装置和方法
公开(公告)号：US20130028592A1
公开(公告)日：2013-01-31
申请号：US13533332
申请日：2012-06-26
申请人： Yasuki Fujii , Ryoichi Mutoh , Toru Katagiri
发明人： Yasuki Fujii , Ryoichi Mutoh , Toru Katagiri
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04J14/0295 , H04J14/0269 , H04J14/0283 , H04Q11/0005 , H04Q2011/0039
摘要： An apparatus switches paths in a wavelength-multiplexing network in which a first number of wavelengths each used for a path to transmit an optical signal are multiplexed into an optical fiber. The apparatus includes an entire switching unit and a second number of individual switching units where the second number is smaller than the first number. The entire switching unit is configured to perform a path-switching process for switching a path, simultaneously on all the first number of wavelengths when failures have occurred for all the first number of wavelengths. The second number of individual switching units are each configured to perform the path-switching process individually on one of a third number of wavelengths included in the first number of wavelengths when at least one failure has occurred for the third number of wavelengths where the third numbers is smaller than the first number.
摘要翻译：一种装置切换波长复用网络中的路径，其中每个用于发送光信号的路径的第一数量的波长被复用到光纤中。该装置包括整个开关单元和第二数量的单独开关单元，其中第二数量小于第一数量。整个开关单元被配置为执行用于在所有第一数量的波长发生故障时同时对所有第一数量的波长切换路径的路径切换处理。第二数量的各个开关单元被配置为当对于第三数量的波长发生至少一个故障时，分别在包括在第一波长数中的第三数量波长之一上执行路径切换处理，其中第三数量小于第一个数字。

4. 发明申请

US20130010591A1 TRANSMISSION APPARATUS, FAILURE RECOVERY METHOD, AND NETWORK SYSTEM 有权
标题翻译：传输装置，故障恢复方法和网络系统
公开(公告)号：US20130010591A1
公开(公告)日：2013-01-10
申请号：US13609745
申请日：2012-09-11
申请人： Yuji Tochio , Toru Katagiri
发明人： Yuji Tochio , Toru Katagiri
IPC分类号： H04L12/26
CPC分类号： H04L12/437 , H04L12/40013 , H04Q2213/1301 , H04Q2213/13166 , H04Q2213/13167
摘要： An object is to simplify a process performed due to a failure recovery. To realize this object, the transmission apparatus includes a determining unit that determines, when a transmission apparatus receives a frame from each ring in a network including multiple rings in which a part of each ring is shared, whether failure information indicating that a failure has occurred in one of the rings is contained in one of the received frames. The transmission apparatus also includes a mapping unit that maps a frame that is determined by the determining unit to contain the failure information, onto a shared frame that is a frame used in a shared portion in the multiple rings. Accordingly, the process performed due to a failure recovery can be simplified.
摘要翻译：目的是简化由于故障恢复而执行的进程。为了实现该目的，传输装置包括：确定单元，确定在发送装置从包含多个环的多个环路的网络中接收到来自每个环的帧时，确定是否发生故障的故障信息其中一个环包含在一个接收的帧中。发送装置还包括映射单元，其将由确定单元确定的包含故障信息的帧映射到作为在多个环中的共享部分中使用的帧的共享帧。因此，可以简化由于故障恢复而执行的处理。

5. 发明申请

US20120170928A1 OPTICAL TRANSMITTER, OPTICAL TRANSMISSION METHOD, AND WAVELENGTH-SELECTIVE VARIABLE DELAYER 有权
标题翻译：光学发射器，光学传输方法和波长选择性可变延迟器
公开(公告)号：US20120170928A1
公开(公告)日：2012-07-05
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki TANAKA , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
IPC分类号： H04J14/02 , H04B10/08
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译：提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。光发射机还包括波长多路复用信号输出单元，从比特时间差给定信号发生器输入至少两个光信号，并且生成并输出在相位调制之间给出比特时间差的波长多路复用信号光信号和强度调制光信号。

6. 发明授权

US08000595B2 Optical receiver, optical communication device, and optical signal receiving method 有权
标题翻译：光接收机，光通信设备和光信号接收方式
公开(公告)号：US08000595B2
公开(公告)日：2011-08-16
申请号：US12056804
申请日：2008-03-27
申请人： Toru Katagiri
发明人： Toru Katagiri
IPC分类号： H04B10/06
CPC分类号： H04B10/677
摘要： An optical receiver including a demodulator to convert an in-phase signal of a received differential phase modulated optical signal into a first electrical signal, and to convert a quadrature signal of the received differential phase modulated optical signal into a second electrical signal; a decision member deciding logic states of the first and second electrical signals; a logic controller using the decision result of the decision member to control logic states of the first and second electrical signals; and a memory storing information relating to the decision result. The logic controller controls the logic state using the information relating to the decision result stored in the memory.
摘要翻译：一种光接收机，包括：解调器，用于将接收到的差分相位调制光信号的同相信号转换为第一电信号，并将所接收的差分相位调制光信号的正交信号转换为第二电信号; 决定成员决定第一和第二电信号的逻辑状态; 逻辑控制器，其使用所述决策成员的判定结果来控制所述第一和第二电信号的逻辑状态; 以及存储器，其存储与所述判定结果有关的信息。逻辑控制器使用与存储在存储器中的判定结果有关的信息来控制逻辑状态。

7. 发明授权

US07864892B2 Control method and apparatus for receiving optical signal 有权
标题翻译：用于接收光信号的控制方法和装置
公开(公告)号：US07864892B2
公开(公告)日：2011-01-04
申请号：US11606067
申请日：2006-11-30
申请人： Tadashi Ikeuchi , Naoki Kuwata , Toru Katagiri
发明人： Tadashi Ikeuchi , Naoki Kuwata , Toru Katagiri
IPC分类号： H04L27/22
CPC分类号： H04L27/2096 , H04B10/677
摘要： A receiving/processing unit receives signals parallelized by a parallelizing unit, and executes a frame process including frame synchronization process on the signals. A phase comparing circuit and a phase judging circuit judge whether a bit delay is present based on a phase difference between a phase of a clock signal at a clock/data recovering unit and a phase of a clock signal at the parallelizing unit. The receiving/processing unit includes a logic processing circuit that executes a bit delay process based on a result of judgment by the phase comparing circuit and the phase judging circuit.
摘要翻译：接收/处理单元接收由并行化单元并行化的信号，并对信号执行包括帧同步处理的帧处理。相位比较电路和相位判断电路基于时钟/数据恢复单元的时钟信号的相位与并行化单元中的时钟信号的相位之间的相位差来判断是否存在位延迟。接收/处理单元包括基于相位比较电路和相位判断电路的判断结果执行位延迟处理的逻辑处理电路。

8. 发明授权

US07826741B2 Optical network system 有权
标题翻译：光网络系统
公开(公告)号：US07826741B2
公开(公告)日：2010-11-02
申请号：US11829199
申请日：2007-07-27
申请人： Toru Katagiri
发明人： Toru Katagiri
IPC分类号： H04J14/00
CPC分类号： H04J3/22 , H04J3/1664 , H04J14/0201 , H04J14/0226 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0279 , H04J14/0283 , H04J14/0284 , H04J2203/0067
摘要： An optical transponder includes a mapping unit mapping, out of multiple types of signals including a first client signal and a second client signal that transmission rates are different from each other, the first client signal having a lower transmission rate to a Generic Framing Procedure (GFP) frame defined in ITU-T Recommendations; a coding unit applying 64B/66B coding to the first client signal mapped to the GFP frame; and a multiplexing unit multiplexing the first client signal to which the 64B/66B coding has been applied and the second client signal in a frame conforming to an Optical Transport Network (OTN) defined in ITU-T Recommendations; in which the first client signal and the second client signal are accommodated in an identical frame in a mixed manner and transmitted as an optical signal having one wavelength.
摘要翻译：一种光学应答器包括一个映射单元，其映射包括传输速率彼此不同的第一客户端信号和第二客户端信号的多种类型的信号，第一客户信号具有较低的传输速率到通用成帧过程（GFP））框架在ITU-T建议书中定义; 对映射到GFP帧的第一客户信号应用64B / 66B编码的编码单元; 以及复用单元，复用在符合ITU-T建议书中定义的光传输网络（OTN）的帧中已应用了64B / 66B编码的第一客户端信号和第二客户端信号; 其中第一客户端信号和第二客户端信号以混合方式容纳在相同的帧中并作为具有一个波长的光信号发送。

9. 发明授权

US07761006B2 Method for designing optical network, and computer readable medium 有权
标题翻译：光网络设计方法和计算机可读介质
公开(公告)号：US07761006B2
公开(公告)日：2010-07-20
申请号：US11808911
申请日：2007-06-13
申请人： Toru Katagiri , Kazuyuki Tajima , Tomohiro Hashiguchi
发明人： Toru Katagiri , Kazuyuki Tajima , Tomohiro Hashiguchi
IPC分类号： H04B10/20 , H04L12/28
CPC分类号： H04J14/0227 , H04B10/275 , H04J14/0241 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： An appropriate ring topology is selected by searching network topology information on the basis of given information about client signal paths on a predetermined condition, and a wavelength ring accommodating the client signal paths and having an optimal transmission characteristic is designed on the basis of the selected ring topology. Accordingly, accommodation of client signal paths in an optical network is efficiently designed.
摘要翻译：通过在预定条件下，基于关于客户信号路径的给定信息搜索网络拓扑信息来选择适当的环形拓扑，并且基于所选择的环设计容纳客户端信号路径并具有最佳传输特性的波长环拓扑。因此，有效地设计了光网络中的客户端信号路径的适应。

10. 发明授权

US07689133B2 Optical signal reception device and method of controlling optical signal reception 有权
标题翻译：光信号接收装置及控制光信号接收的方法
公开(公告)号：US07689133B2
公开(公告)日：2010-03-30
申请号：US11510729
申请日：2006-08-28
申请人： Toru Katagiri , Takeshi Hoshida , Tomoo Takahara , Kentaro Nakamura , Naoki Kuwata
发明人： Toru Katagiri , Takeshi Hoshida , Tomoo Takahara , Kentaro Nakamura , Naoki Kuwata
IPC分类号： H04B10/06
CPC分类号： H04B10/66 , H04L27/223
摘要： An optical signal reception device is disclosed that receives and demodulates an optical signal modulated by DQPSK and performs logical inversion and other controls to transit to the object reception state. The signal reception device includes a front end including a delay interferometer and an opto-electric conversion element that receive the DQPSK optical signal and convert it into an in-phase signal and a quadrature-phase signal, a clock regenerator that regenerates a clock signal based on the in-phase signal and the quadrature-phase signal, a multiplexer that multiplexes the in-phase signal and the quadrature-phase signal, a reception frame processing unit that detects frame synchronization based on the signal multiplexed by the multiplexer and de-maps the received frames, and a controller that, based on out-of-frame-synchronization information (LOF/OOF) from the reception frame processing unit, performs logical inversion control in the clock regenerator, multiplexing timing control in the multiplexer, and controls the delay interferometer in the front end so as to transit to the object reception state.
摘要翻译：公开了一种光信号接收装置，其接收并解调由DQPSK调制的光信号，并执行逻辑反转和其它控制以转接到对象接收状态。信号接收装置包括前端，其包括延迟干涉仪和光电转换元件，其接收DQPSK光信号并将其转换为同相信号和正交相位信号，时钟再生器基于时钟信号再生在同相信号和正交相位信号上，复用多路复用同相信号和正交相位信号的接收帧处理单元，其基于由多路复用器多路复用的信号和去映射来检测帧同步接收帧，以及基于来自接收帧处理单元的帧外同步信息（LOF / OOF）执行时钟再生器中的逻辑反转控制的控制器，多路复用器中的复用定时控制，并且控制延迟干涉仪在前端，以便转移到物体接收状态。

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