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61. 发明授权

US07555061B2 Optical communication device 有权
标题翻译：光通信设备
公开(公告)号：US07555061B2
公开(公告)日：2009-06-30
申请号：US11155666
申请日：2005-06-20
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： H04L27/20
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/5053 , H04B10/5055 , H04B10/5561 , H04L25/03343 , H04L27/2075 , H04L27/2096
摘要： An optical sender is disclosed that operates in a Differential Quadrature Phase Shift Keying modulation scheme for high speed optical transmission and is capable of performing logical calculations at a low speed. The optical sender transmits a Differential Quadrature Phase Shift Keying (DQPSK) signal generated with modulation signals ρk and ηk so that a signal directly output from a signal receiver corresponding to the optical sender is in agreement with data signals Ik and Qk to be transmitted. The signal receiver is capable of modulation by DQPSK, and the modulation signals ρk and ηk are precoded by using the data signals Ik and Qk and the modulation signals one symbol earlier (ρk−1 and ηk−1) . The optical sender includes plural precoders that perform logical calculation simultaneously and in parallel on plural data signals one period after another period.
摘要翻译：公开了一种用于高速光传输的差分正交相移键控调制方案的光发送器，并能够以低速进行逻辑运算。光发送器发送利用调制信号rhok和etak生成的差分正交相移键控（DQPSK）信号，使得从与光发送器对应的信号接收器直接输出的信号与要发送的数据信号Ik和Qk一致。信号接收机能够通过DQPSK调制，并且通过使用数据信号Ik和Qk以及前一个符号（rhok-1和etak-1）的调制信号对调制信号rhok和etak进行预编码。光发送器包括多个预编码器，这些预编码器在一个周期之后的一个周期上同时并行并行地执行多个数据信号。

62. 发明授权

US07433600B2 Optical node device and system including the device 失效
标题翻译：光节点设备和系统包括设备
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。

63. 发明申请

US20080019463A1 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：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。

64. 发明申请

US20060209854A1 Node device for transfering supervisory control information in photonic network 有权
标题翻译：用于在光网络中传输监控信息的节点设备
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。

65. 发明申请

US20050232629A1 Optical connection switching apparatus and management control unit thereof 有权
标题翻译：光连接交换装置及其管理控制单元
公开(公告)号：US20050232629A1
公开(公告)日：2005-10-20
申请号：US11081056
申请日：2005-03-16
申请人： Kouichirou Amemiya , Takao Naito , Toru Katagiri , Toshiki Tanaka
发明人： Kouichirou Amemiya , Takao Naito , Toru Katagiri , Toshiki Tanaka
IPC分类号： H04B10/03 , H04B10/032 , H04B10/27 , H04L12/70 , H04L12/931 , H04Q11/00 , H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0039 , H04Q2011/0079
摘要： An optical connection switching according to the present invention comprises an optical connection switching facility capable of making a connection between any one of optical input ports and any one of optical output ports, one or more optical transmitting/receiving units connected to a portion of the optical input/output ports, and management control units for controlling the optical connection switching facility to make a connection between the optical input/output port connected to the optical transmitting/receiving unit and the optical input/output port connected to equipment for acquiring and managing information on the equipment by making a communication with the equipment through the use of the optical transmitting/receiving unit. This enables acquiring the information on the equipment having an optical communication interface to be optically connected, thereby automating the connection management of the equipment.
摘要翻译：根据本发明的光学连接切换包括光连接切换设备，其能够进行任何一个光输入端口和光输出端口中的任一个之间的连接，一个或多个光发送/接收单元连接到光学部件的一部分输入/输出端口和管理控制单元，用于控制光学连接切换设备，以连接到与光学发送/接收单元连接的光学输入/输出端口与连接到用于获取和管理信息的设备的光学输入/输出端口之间的连接通过使用光发送/接收单元与设备进行通信，在设备上。这使得能够获取具有光学连接的光通信接口的设备的信息，从而使设备的连接管理自动化。

66. 发明授权

US06643422B2 Optical switch changeover controlling method, optical node device and optical switch system 有权
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.

67. 发明授权

US09154326B2 Transmission apparatus, failure recovery method, and network system 有权
标题翻译：传输设备，故障恢复方法和网络系统
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。

68. 发明授权

US08737839B2 Network design apparatus, method, and computer product 有权
标题翻译：网络设计，方法和计算机产品
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。

69. 发明授权

US08625996B2 Optical transmitter, optical transmission method, and wavelength-selective variable delayer 有权
标题翻译：光发射机，光传输方式和波长选择可变延迟器
公开(公告)号：US08625996B2
公开(公告)日：2014-01-07
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： H04B10/00
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，至少两个光信号从比特时间差给定信号发生器输入到该波长多路复用信号输出单元，并且其生成并输出波长多路复用信号，其中在强度调制光信号和相位调制光信号。

70. 发明授权

US08380077B2 Chromatic dispersion compensation design system and chromatic dispersion compensation design method 有权
标题翻译：色散补偿设计系统和色散补偿设计方法
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。

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