公开(公告)号：US20100135676A1

公开(公告)日：2010-06-03

申请号：US12656413

申请日：2010-01-28

申请人： Toru Katagiri

发明人： Toru Katagiri

IPC分类号： H04B10/06

CPC分类号： H04B10/66 ,  H04L27/223

摘要： An optical signal reception device 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： 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他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。

公开(公告)号：US20100067547A1

公开(公告)日：2010-03-18

申请号：US12461002

申请日：2009-07-29

申请人： Toru Katagiri ,  Osamu Takeuchi

发明人： Toru Katagiri ,  Osamu Takeuchi

IPC分类号： H04J3/24

CPC分类号： H04J3/1658 ,  H04J3/07 ,  H04J2203/0085

摘要： A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byte and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8+10n (“n” is zero or a given positive integer))×4 rows, the second fixed stuff byte being of a given byte×4 rows, the given byte being equal to zero or more and being equal to (24−10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte and the second fixed stuff byte.

摘要翻译： 框架产生装置包括插入部分和容纳部分。 插入部分将第一固定填充字节和第二固定填充字节插入到OTU帧的有效载荷区域中，第一固定填充字节为（8 + 10n（“n”为零或给定的正整数））×4 行，第二固定填充字节为给定字节×4行，给定字节等于零或更大，等于（24-10n）或更大。 容纳部分容纳除了第一固定填充字节和第二固定填充字节之外的有效载荷区域中的以太网信号。

公开(公告)号：US07433600B2

公开(公告)日：2008-10-07

申请号：US09960405

申请日：2001-09-24

申请人： Toru Katagiri ,  Hiroaki Tomofuji ,  Hiroshi Onaka

发明人： Toru Katagiri ,  Hiroaki Tomofuji ,  Hiroshi Onaka

IPC分类号： H04J14/02 ,  H04B10/20

CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0075 ,  H04Q2011/0092

摘要： Disclosed herein is an optical node device applicable to an optical network including a closed loop provided by an optical fiber. This optical node device includes a tunable wavelength selecting element adapted to input WDM signal light obtained by wavelength division multiplexing a plurality of optical signals having different wavelengths, the tunable wavelength selecting element having a function of dropping at least one optical signal from the WDM signal light and a function of adding at least one optical signal to at least one unassigned wavelength channel of the WDM signal light; and a wavelength selecting filter optically connected to the tunable wavelength selecting element for removing noise present in any bands other than a signal band of each optical signal passing through the tunable wavelength selecting element. With this configuration, the oscillation of optical power in the closed loop can be prevented by the use of the wavelength selecting filter for removing noise in any bands other than the signal band.

摘要翻译： 这里公开了一种适用于包括由光纤提供的闭环的光网络的光节点装置。 该光节点装置包括可调波长选择元件，其适于输入通过波分复用具有不同波长的多个光信号而获得的WDM信号光，该可调波长选择元件具有从WDM信号光中丢弃至少一个光信号的功能 以及将至少一个光信号添加到WDM信号光的至少一个未分配波长信道的功能; 以及波长选择滤波器，其光学连接到可调波长选择元件，用于去除除了通过可调波长选择元件的每个光信号的信号频带之外的任何频带中存在的噪声。 利用这种配置，可以通过使用波长选择滤波器来除去信号频带以外的任何频带中的噪声来防止闭环中的光功率的振荡。

公开(公告)号：US20080019463A1

公开(公告)日：2008-01-24

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。

公开(公告)号：US20060209854A1

公开(公告)日：2006-09-21

申请号：US11258000

申请日：2005-10-26

申请人： Toru Katagiri ,  Takao Naito

发明人： Toru Katagiri ,  Takao Naito

IPC分类号： H04L12/56

CPC分类号： H04L41/04 ,  H04B10/077 ,  H04L41/12

摘要： A node device receives supervisory control information on a dedicated wavelength different from a wavelength of signal light, which is input from an input port together with the signal light, and extracts, from signal light to be output from an output port, information superposed on an optical main signal of the signal light. Then, it is confirmed whether or not the signal light to be output and the supervisory control information correspond by using the extracted information, and supervisory control information corresponding to the signal light to be output is transmitted on the dedicated wavelength from the output port.

摘要翻译： 节点装置接收与从信号光一起从输入端口输入的不同于信号光波长的专用波长的监视控制信息，并从输出端口输出的信号光中提取叠加在信号光上的信息 光信号的主要信号灯。 然后，通过使用提取的信息来确认要输出的信号光和监控信息是否对应，并且从输出端口以专用波长发送与要输出的信号光相对应的监控信息。

公开(公告)号：US06643422B2

公开(公告)日：2003-11-04

申请号：US09797731

申请日：2001-03-05

申请人： Toru Katagiri ,  Satoshi Kuroyanagi ,  Tetsuya Nishi ,  Ichiro Nakajima ,  Takuji Maeda

发明人： Toru Katagiri ,  Satoshi Kuroyanagi ,  Tetsuya Nishi ,  Ichiro Nakajima ,  Takuji Maeda

IPC分类号： G02B635

CPC分类号： H04Q11/0005 ,  H04J14/0283 ,  H04J14/0295 ,  H04Q2011/0035 ,  H04Q2011/0049 ,  H04Q2011/0058 ,  H04Q2011/0081

摘要： The present invention aims at providing an optical switch changeover controlling method, an optical node device and an optical switch system, capable of avoiding an interruption in an optical output power when changing over an optical path making use of a spatial optical switch arranged with a plurality of optical switch elements. To this end, the optical switch changeover controlling method according to the present invention enables an uninterrupted changeover of an optical path by conducting a reconnection of the optical path after establishing a state where the optical path before the changeover and the optical path after the changeover are simultaneously set concerning the spatial optical switch within the optical node device, when conducting a changeover of the optical path so as to transmit a client optical signal having been transmitted through a working ray path to a protective ray path such as in a case that a fault occurs in the working ray path.

公开(公告)号：US09154326B2

公开(公告)日：2015-10-06

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： H04L12/437 ,  H04L12/40

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。

公开(公告)号：US08737839B2

公开(公告)日：2014-05-27

申请号：US12858222

申请日：2010-08-17

申请人： Yutaka Takita ,  Toru Katagiri ,  Tomohiro Hashiguchi ,  Kazuyuki Tajima

发明人： Yutaka Takita ,  Toru Katagiri ,  Tomohiro Hashiguchi ,  Kazuyuki Tajima

IPC分类号： H04B10/12

CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04J14/0271 ,  H04J14/0283 ,  H04J14/0284 ,  H04L41/145 ,  H04Q2011/0086

摘要： A network design apparatus includes an input unit configured to receive network information that indicates nodes connected by optical transmission paths and path information that indicates paths between the nodes; an design unit configured to perform, based on the network information and the path information, wavelength dispersion compensation design using a constraint condition that a path whose span count is larger than a span count of another path that does not satisfy a transmission condition does not satisfy the transmission condition; and an output unit configured to output a result obtained by the design unit.

摘要翻译： 网络设计装置包括：输入单元，被配置为接收指示通过光传输路径连接的节点的网络信息和指示节点之间的路径的路径信息; 设计单元，其被配置为基于网络信息和路径信息，使用跨度计数大于不满足传输条件的另一路径的跨度计数的路径不满足的约束条件来执行波长色散补偿设计 传输条件; 以及输出单元，被配置为输出由所述设计单元获得的结果。

公开(公告)号：US08588256B2

公开(公告)日：2013-11-19

申请号：US12961463

申请日：2010-12-06

申请人： Toru Katagiri ,  Hiroyuki Kitajima

发明人： Toru Katagiri ,  Hiroyuki Kitajima

IPC分类号： G01R31/08 ,  G06F11/00 ,  H04J3/07

CPC分类号： H04J3/07 ,  H04J3/1629

摘要： A transmission apparatus exercises insertion control for inserting a client signal and a stuff byte into a payload area in a frame into which the client signal is to be mapped, and sends the frame after the insertion control. In addition, the transmission apparatus inserts the client signal or the stuff byte in columns of the frame into the payload area except a leading column.

摘要翻译： 发送装置进行插入控制，将客户端信号和填充字节插入到要映射客户端信号的帧中的有效载荷区域中，并且在插入控制之后发送帧。 此外，发送装置将客户端信号或填充字节插入到帧中的除了前导列之外的有效载荷区域中。

公开(公告)号：US08380077B2

公开(公告)日：2013-02-19

申请号：US12562799

申请日：2009-09-18

申请人： Yutaka Takita ,  Toru Katagiri ,  Kazuyuki Tajima ,  Tomohiro Hashiguchi

发明人： Yutaka Takita ,  Toru Katagiri ,  Kazuyuki Tajima ,  Tomohiro Hashiguchi

IPC分类号： H04B10/12

CPC分类号： H04B10/2513 ,  H04J14/0256 ,  H04J14/0271

摘要： A chromatic dispersion compensation design system includes: an input unit that inputs information of an optical network having a plurality of nodes optically coupled to each other via an optical transmission path; an allowable range determining unit that determines an allowable range of a residual chromatic dispersion with respect to every wavelength path of a plurality of signals from a starting node to a terminal node, based on the information of the optical network; and a calculation unit that calculates a wavelength path capacity in the allowable range of the residual chromatic dispersion, in view of a chromatic dispersion variability of each optical element in the optical network.

摘要翻译： 色散补偿设计系统包括：输入单元，其输入具有经由光传输路径彼此光耦合的多个节点的光网络的信息; 允许范围确定单元，基于所述光网络的信息，确定相对于从起始节点到终端节点的多个信号的每个波长路径的残余色散的容许范围; 以及考虑到光网络中的每个光学元件的色散变化性，计算剩余色散的容许范围内的波长路径容量的计算单元。