公开(公告)号：US08306439B2

公开(公告)日：2012-11-06

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： H04B10/06

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：US20120251127A1

公开(公告)日：2012-10-04

申请号：US13365819

申请日：2012-02-03

申请人： Toshiaki OHKUBO ,  Toru Katagiri ,  Hiroyuki Honma ,  Hiromichi Makishima ,  Hiroyuki Kitajima

发明人： Toshiaki OHKUBO ,  Toru Katagiri ,  Hiroyuki Honma ,  Hiromichi Makishima ,  Hiroyuki Kitajima

IPC分类号： H04B10/04

CPC分类号： H04J3/1652

摘要： An apparatus for mapping multiple lower-speed signal transmission frames to a higher-speed signal transmission frame. The apparatus includes buffers configured to buffer the lower-speed signal transmission frames, determination units configured to determine frequency justification information for the lower-speed signal transmission frames, a barrel shifter configured to receive signals output from the buffers, and a controller configured to control the barrel shifter to map the lower-speed signal transmission frames to the higher-speed signal transmission frame based on external settings for the respective lower-speed signal transmission frames and the frequency justification information determined by the determination units. When the minimum unit of the lower-speed signal transmission frames is a channel, the number of the buffers and the number of the determination units correspond to the maximum number of channels that can be multiplexed in the higher-speed signal transmission frame.

摘要翻译： 一种用于将多个低速信号传输帧映射到更高速度的信号传输帧的装置。 该装置包括被配置为缓冲低速信号传输帧的缓冲器，被配置为确定低速信号传输帧的频率调整信息的确定单元，被配置为接收从缓冲器输出的信号的桶形移位器，以及被配置为控制 桶形移位器基于各个低速信号传输帧的外部设置和由确定单元确定的频率对齐信息将低速信号传输帧映射到较高速度的信号传输帧。 当低速信号传输帧的最小单位是信道时，缓冲器的数量和确定单元的数量对应于在高速信号传输帧中可以多路复用的最大信道数。

公开(公告)号：US08275259B2

公开(公告)日：2012-09-25

申请号：US12578751

申请日：2009-10-14

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

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

IPC分类号： H04B10/08

CPC分类号： H04B10/07951

摘要： A method for determining a value of chromatic dispersion compensation in an optical network including a plurality of nodes connected by at least one transmission line, the plurality of nodes including a plurality of dispersion compensators, the optical network including a plurality of wavelength paths between the optional nodes, the method includes determining a compensation value of the dispersion compensators in the optical network by the computer, the compensation value selecting that an error between the object value of the residual chromatic dispersion in accordance with of the first end node of the first path and the permissible value of the residual chromatic dispersion of the first end node of the first path is least, and the value of the residual chromatic dispersion of the first end is in the permissible value of the residual chromatic dispersion of the second end node of the second path.

摘要翻译： 一种用于确定包括由至少一个传输线连接的多个节点的光网络中的色散补偿值的方法，所述多个节点包括多个色散补偿器，所述光网络包括可选择的多个波长路径 所述方法包括：由所述计算机确定所述光网络中的色散补偿器的补偿值，所述补偿值选择根据所述第一路径的第一端节点的所述残余色散的对象值之间的误差;以及 第一路径的第一端节点的残余色散的允许值最小，第一端的残留色散的值在第二端的第二端节点的残余色散的容许值中 路径。

公开(公告)号：US08270829B2

公开(公告)日：2012-09-18

申请号：US12618913

申请日：2009-11-16

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

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

IPC分类号： H04B10/08

CPC分类号： H04B10/0793 ,  H04J14/0221 ,  H04J14/0257 ,  H04J14/0271 ,  H04J14/0278 ,  H04L41/145 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/16 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0086

摘要： In a network design apparatus, a full channel evaluator determines whether all wavelength channels for main signals can deliver the main signals of an existing optical network. When it is found that one or more wavelength channels cannot deliver main signals, a chromatic dispersion evaluator determines whether there are a specified number of wavelength channels that satisfy a specified chromatic dispersion condition. An optical signal-to-noise ratio (SNR) evaluator extracts a specified number of wavelength channels out of those satisfying the chromatic dispersion condition in descending order of optical SNRs thereof, and determines whether the extracted wavelength channels satisfy a specified optical SNR condition.

摘要翻译： 在网络设计装置中，全信道评估器确定主信号的所有波长信道是否可以传送现有光网络的主信号。 当发现一个或多个波长信道不能传送主信号时，色散估计器确定是否存在满足特定色散条件的指定数量的波长信道。 光信噪比（SNR）评估器以其光学SNR的降序从满足色散条件的那些提取指定数量的波长信道，并且确定提取的波长信道是否满足指定的光学SNR条件。

公开(公告)号：US08121481B2

公开(公告)日：2012-02-21

申请号：US12395709

申请日：2009-03-01

申请人： Toru Katagiri ,  Tomohiro Hashiguchi ,  Yutaka Takita ,  Kazuyuki Tajima ,  Motoyoshi Sekiya ,  Takashi Toyomaki

发明人： Toru Katagiri ,  Tomohiro Hashiguchi ,  Yutaka Takita ,  Kazuyuki Tajima ,  Motoyoshi Sekiya ,  Takashi Toyomaki

IPC分类号： H04B10/08 ,  H04B10/12 ,  H04J14/02

CPC分类号： H04B10/25133 ,  H04J14/0221

摘要： A residual chromatic dispersion target value at a terminal node is set for each wavelength path, and also, candidates of a dispersion compensation amount settable in each chromatic dispersion compensation module on an optical network are set, and further, computation processing is executed for selecting the dispersion compensation amount in each chromatic dispersion compensation module from the candidates so that the sum of errors between the residual chromatic dispersion amounts and the set residual chromatic dispersion target values at the terminal nodes for all of wavelength paths becomes minimum. As a result, for each wavelength path on the optical network, the dispersion compensation amount in each chromatic dispersion compensation module can be designed in optimum so as to satisfy the desired optical signal quality at the terminal node, while considering the residual chromatic dispersion during the transmission.

摘要翻译： 针对每个波长路径设置终端节点的残留色散目标值，并且设置在光网络上的每个色散补偿模块中可设置的色散补偿量的候选，并且还执行计算处理以选择 每个色散补偿模块中的色散补偿量，使得残留色散量与所有波长路径的终端节点处的残留色散目标值之间的误差之和变得最小。 结果，对于光网络上的每个波长路径，可以将每个色散补偿模块中的色散补偿量最优地设计成在终端节点处满足期望的光信号质量，同时考虑到在 传输。

公开(公告)号：US08005373B2

公开(公告)日：2011-08-23

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：US20100080556A1

公开(公告)日：2010-04-01

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： H04J14/00

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。

公开(公告)号：US07664397B2

公开(公告)日：2010-02-16

申请号：US11038281

申请日：2005-01-21

申请人： Masahiro Yuki ,  Toru Katagiri ,  Takao Naito

发明人： Masahiro Yuki ,  Toru Katagiri ,  Takao Naito

IPC分类号： H04B10/00

CPC分类号： H04J14/0227 ,  H04J14/0221 ,  H04J14/0241 ,  H04J14/0284

摘要： An optical network system enabling confirmation of connection and tracking of wavelength paths at a high speed and a low cost without introducing any special hardware by having a wavelength path monitoring unit in an NMS give temporary change of optical power through a change generating unit to an optical signal S from an optical transmitting/receiving node, by having a change detecting unit confirm that this change of optical power has propagated through an optical transmission line and appeared at each node on the way, and confirming connections and monitoring the wavelength path while confirming the presence of the change.

摘要翻译： 通过在NMS中具有波长路径监视单元，能够以高速和低成本确认波长路径的连接和跟踪而不引入任何特殊硬件的光网络系统通过改变生成单元将光功率暂时改变为光 来自光发送/接收节点的信号S通过使变化检测单元确认光功率的这种变化已经通过光传输线传播并出现在路径上的每个节点处，并确认连接并监测波长路径，同时确认 存在变化。

公开(公告)号：US20090003198A1

公开(公告)日：2009-01-01

申请号：US12215449

申请日：2008-06-27

申请人： Tomohiro Hashiguchi ,  Toru Katagiri ,  Kazuyuki Tajima

发明人： Tomohiro Hashiguchi ,  Toru Katagiri ,  Kazuyuki Tajima

IPC分类号： G08C15/00 ,  H04J3/08 ,  H04L12/28

CPC分类号： H04J3/085 ,  H04J2203/0067 ,  H04L45/123 ,  H04L45/124 ,  H04L45/302

摘要： According an aspect of the embodiment, there is provided a method for accommodating signal paths to a ring network. A demand chain is defined as a series of traffic demands in which each traffic demand shares one of the pair of terminal nodes pointed thereby with at least one adjacent traffic demand and the number of pairs of terminal nodes pointed by traffic demands in the series of traffic demands is maximized. Each traffic demand of the demand chain is corresponded to a demand accommodating route which is defined as a route between the pair of terminal nodes on the ring network pointed by the each traffic demand and arranged in a predetermined rotation direction on the ring network. Then, signal paths required by traffic demands each pointing a pair of terminal nodes both included in the demand accommodating route chain are accommodated to the demand accommodating route chain.

摘要翻译： 根据实施例的一个方面，提供一种用于适应信号路径到环形网络的方法。 需求链被定义为一系列交通需求，其中每个交通需求分享至少一个相邻交通需求的一对终端节点中的一个，以及一系列业务中的交通需求指向的终端节点对数 要求最大化。 需求链的每个业务需求对应于需求容纳路由，其被定义为由每个业务需求指向的环形网络上的一对终端节点之间的路由，并且以环形网络上的预定旋转方向布置。 然后，由需求容纳路径链包括的一对终端节点指向需求容纳路由链所需的信号路径。

公开(公告)号：US20070253712A1

公开(公告)日：2007-11-01

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

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。