公开(公告)号：US20100215377A1

公开(公告)日：2010-08-26

申请号：US12620812

申请日：2009-11-18

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

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

IPC分类号： H04B10/12

CPC分类号： H04B10/2513

摘要： In an optical network design apparatus, a constraint setter sets a first constraint that one of alternative values given beforehand is selected as the dispersion compensation amount of each node, sets a first margin value that assumes a nonnegative value, sets a second constraint that the first margin value is equal to or greater than the difference between the residual dispersion and the lower bound of an allowable range, sets a second margin value that assumes a nonnegative value, and sets a third constraint that the second margin value is equal to or greater than the difference between the upper bound of the allowable range and the residual dispersion. A calculation controller generates an objective function including the first, second and third constraints and including a summation of the first and second margin values for all paths, and derives a solution that minimizes the objective function.

摘要翻译： 在光网络设计装置中，约束设定器设定将预先给出的备选值中的一个选择为每个节点的色散补偿量的第一约束，设置假定为非负值的第一边距值，设定第二约束， 余量值等于或大于允许范围的残差色散和下限之间的差值，设置假设为非负值的第二余量值，并设定第二限制值等于或大于 允许范围的上限与剩余色散之间的差异。 计算控制器产生包括第一，第二和第三约束的目标函数，并且包括对于所有路径的第一和第二边界值的求和，并导出最小化目标函数的解。

公开(公告)号：US07751345B2

公开(公告)日：2010-07-06

申请号：US11742532

申请日：2007-04-30

申请人： Tomohiro Hashiguchi ,  Toru Katagiri ,  Kazuyuki Tajima

发明人： Tomohiro Hashiguchi ,  Toru Katagiri ,  Kazuyuki Tajima

IPC分类号： H04B10/00 ,  H04B10/08

CPC分类号： H04J14/0294 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0278 ,  H04J14/0283 ,  H04J2203/0089

摘要： If exists a client signal of a bandwidth larger than “optical signal bandwidth BW” divided by “the number of utilizable ports P”, extracted is a combination(s) of signals including one or more of a signal of a maximum bandwidth, of signals of which a total bandwidth is within the BW and of signals of which the number of total ports required in correspondence with a protection type of each client signal is equal to P, and selected is a combination of which the total bandwidth is a maximum from among the extracted combinations.

摘要翻译： 如果存在大于“光信号带宽BW”的带宽的客户端信号除以“可利用端口P的数量”，则提取的是包括最大带宽的信号中的一个或多个信号的信号的组合，信号 其总带宽在BW内，并且与每个客户端信号的保护类型相对应所需的总端口数等于P的信号，并且选择的总和带宽是从 提取的组合。

公开(公告)号：US20100003036A1

公开(公告)日：2010-01-07

申请号：US12457593

申请日：2009-06-16

申请人： Naoki Kuwata ,  Tadashi Ikeuchi ,  Toru Katagiri

发明人： Naoki Kuwata ,  Tadashi Ikeuchi ,  Toru Katagiri

IPC分类号： H04B10/12 ,  H04B10/06

CPC分类号： H04B10/677

摘要： A communication apparatus in accordance with an embodiment comprises a reception unit configured to demodulate a received signal to output a first demodulated signal in dependence on a reception condition. The communication apparatus further comprises a pattern detection unit configured to detect a characteristic pattern in the first demodulated signal to output a pattern detection signal, and a pitch detection unit configured to detect a pitch of the characteristic pattern based on the pattern detection signal to output a first signal detection signal indicating that the first demodulated signal is one of an in-phase signal and a quadrature signal, or an inverted version of the one of the in-phase signal and the quadrature signal.

摘要翻译： 根据实施例的通信装置包括：接收单元，被配置为解调接收信号，以根据接收条件输出第一解调信号。 通信装置还包括：图案检测单元，被配置为检测第一解调信号中的特征图案以输出图案检测信号;以及音调检测单元，被配置为基于图案检测信号检测特征图案的音调，以输出 第一信号检测信号，指示第一解调信号是同相信号和正交信号中的一个，或同相信号和正交信号之一的反相版本。

公开(公告)号：US20090087194A1

公开(公告)日：2009-04-02

申请号：US12219863

申请日：2008-07-29

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。

公开(公告)号：US20080240738A1

公开(公告)日：2008-10-02

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 ,  H04B10/00

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。

公开(公告)号：US20070291666A1

公开(公告)日：2007-12-20

申请号：US11705582

申请日：2007-02-13

申请人： Toru Katagiri ,  Kazuyuki Tajima ,  Tomohiro Hashiguchi

发明人： Toru Katagiri ,  Kazuyuki Tajima ,  Tomohiro Hashiguchi

IPC分类号： H04L12/28

CPC分类号： H04L12/437 ,  H04L12/66

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.

公开(公告)号：US07146066B2

公开(公告)日：2006-12-05

申请号：US10995179

申请日：2004-11-24

申请人： Toru Katagiri ,  Takao Naito

发明人： Toru Katagiri ,  Takao Naito

IPC分类号： G02B6/14 ,  G02B6/28

CPC分类号： H04B10/25133

摘要： The objective of the present invention is to realize a chromatic dispersion compensation method which does not depend on a wavelength path in a photonic network to which a HUB node is applied and its monitoring control. In order to achieve this purpose, the present invention controls a plurality of variable chromatic dispersion compensators arbitrarily disposed in the photonic network based on the measured results of a plurality of chromatic dispersion monitors arbitrarily disposed in the photonic network and wavelength path information kept by the network management system which manages the entire photonic network. Here, the variable chromatic dispersion compensator within the network that should be controlled and the chromatic dispersion compensated quantity thereof are determined based on the measured results of the chromatic dispersion monitor and the wavelength path information kept by NMS.

摘要翻译： 本发明的目的是实现不依赖于应用了HUB节点的光子网络中的波长路径及其监视控制的色散补偿方法。 为了实现该目的，本发明基于任意设置在光子网络中的多个色散监视器的测量结果和由网络保存的波长路径信息来控制任意设置在光子网络中的多个可变色散补偿器 管理整个光网络的管理系统。 这里，基于色散监视器的测量结果和由NMS保持的波长路径信息来确定网络内可变色散补偿器和应该被控制的色散补偿量。

公开(公告)号：US20050264872A1

公开(公告)日：2005-12-01

申请号：US11133336

申请日：2005-05-20

申请人： Kouichiro Amemiya ,  Takao Naito ,  Toru Katagiri

发明人： Kouichiro Amemiya ,  Takao Naito ,  Toru Katagiri

IPC分类号： G02B6/26 ,  G02B6/42 ,  H04B10/2525 ,  H04J14/02 ,  H04B10/12

CPC分类号： H04B10/25253

摘要： A chromatic dispersion compensation method is disclosed that compensates for chromatic dispersion in an optical transmission line. Dispersion compensators provided one for each of first dispersion compensation segments, each of which constitutes a predetermined length of the optical transmission line, are set such that a residual dispersion slope in each of the first dispersion compensation segments becomes positive. Then, dispersion slope compensators provided one for each of second dispersion compensation segments, each of which includes a predetermined number of the first dispersion compensation segments, are set to have a negative dispersion slope such that residual dispersion slopes in each of the second dispersion compensation segments becomes zero.

摘要翻译： 公开了补偿光传输线中的色散的色散补偿方法。 对于每个构成光传输线的预定长度的第一色散补偿段中的每一个设置的色散补偿器被设置为使得每个第一色散补偿段中的残余色散斜率变为正。 然后，为每个第二色散补偿段提供一个色散斜率补偿器，每个第二色散补偿段包括预定数量的第一色散补偿段，被设置为具有负色散斜率，使得第二色散补偿段中的每一个中的残差色散斜率 变成零。

公开(公告)号：US08665738B2

公开(公告)日：2014-03-04

申请号：US13047083

申请日：2011-03-14

申请人： Toru Katagiri ,  Hiroyuki Honma

发明人： Toru Katagiri ,  Hiroyuki Honma

IPC分类号： H04L12/26

CPC分类号： H04J3/07 ,  H04J3/0685 ,  H04J3/1652

摘要： A transmission apparatus stores frame data of a first frame in a second frame having a bit rate different from that of the first frame through regulation of the amount of stuffs to be stored in the second frame. The transmission apparatus includes: a storage unit storing the first-frame frame data; a first control unit controlling a timing of writing the first-frame frame data in the storage unit based on first stuff information indicating the amount of stuffs contained in the first frame; an arithmetic and logic unit obtaining second stuff information indicating the amount of stuffs to be contained in the second frame based on a bit rate ratio between the first frame and the second frame; and a second control unit controlling a timing of reading out the first-frame frame data stored in the storage unit based on the second stuff information.

摘要翻译： 发送装置通过调整要存储在第二帧中的填充量来存储具有与第一帧不同的比特率的第二帧中的第一帧的帧数据。 发送装置包括：存储单元，存储第一帧帧数据; 第一控制单元，基于表示第一帧中包含的填充量的第一填充信息，控制将第一帧帧数据写入存储单元的定时; 算术和逻辑单元，基于第一帧和第二帧之间的比特率，获得指示要包含在第二帧中的填充量的第二填充信息; 以及第二控制单元，其基于第二填充信息控制读出存储在存储单元中的第一帧帧数据的定时。

公开(公告)号：US08406626B2

公开(公告)日：2013-03-26

申请号：US12801899

申请日：2010-06-30

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： H04B10/20

CPC分类号： H04Q11/0062 ,  H04Q2011/0086

摘要： An apparatus for designing an optical network having nodes, includes: a parameter holding unit which holds values of one or more optical-transmission parameters corresponding to one or more components constituting the optical network; a part generation unit which generates design candidates for a part to be arranged in each of one or more spans between the nodes so that each of the design candidates contains at least one of the one or more components; a part selection unit which makes a selection, for each of the one or more spans, of one of the design candidates which has at least one value of at least one of the one or more optical-transmission parameters satisfying a design condition; and a construction control unit which constructs the optical network by combining one or more parts each of which is selected by the part selection unit.

摘要翻译： 一种用于设计具有节点的光网络的装置，包括：参数保持单元，其保持对应于构成光网络的一个或多个组件的一个或多个光传输参数的值; 一部分生成单元，其生成要布置在节点之间的一个或多个跨度中的每一个中的部分的设计候选，使得每个设计候选包含所述一个或多个组件中的至少一个; 对于所述一个或多个跨度中的每一个选择具有满足设计条件的所述一个或多个光学传输参数中的至少一个值的所述设计候选中的一个的部件选择单元; 以及构造控制单元，其通过组合由部件选择单元选择的一个或多个部件构造光网络。