公开(公告)号：US08345538B2

公开(公告)日：2013-01-01

申请号：US12853336

申请日：2010-08-10

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： H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04Q11/0062 ,  H04J14/0267 ,  H04J14/0268 ,  H04L45/1283 ,  H04L45/1287 ,  H04L45/22 ,  H04Q2011/0073

摘要： There is provided topology information including connection states among nodes in a network, and port information including restriction conditions on connectivity among ports within a restricted node. A path search apparatus finds a first path having the minimum total link-cost among a plurality of paths. The topology information is changed so that the first path is not searched for as a path having the minimum total link-cost among the plurality of paths, and the port information is changed based on a port connectivity change rule. Then, the path search apparatus finds a second path different from the first path, based on the changed port information and the changed topology information, and reconfigures a pair of link-disjoint paths satisfying the restriction conditions imposed on the restricted node, by removing a link shared by both the first and second paths from the original topology information.

摘要翻译： 提供了包括网络中的节点之间的连接状态的拓扑信息，以及包括受限节点内的端口之间的连接性的限制条件的端口信息。 路径搜索装置在多个路径中找到具有最小总链路成本的第一路径。 改变拓扑信息，使得第一路径不被搜索为多个路径中具有最小总链路成本的路径，并且基于端口连接性改变规则改变端口信息。 然后，路径搜索装置基于改变的端口信息和改变的拓扑信息，找到与第一路径不同的第二路径，并且通过去除一个对应于限制节点的限制条件来重新配置满足限制条件的一对链路不相交路径 链路由原始拓扑信息由第一和第二路径共享。

公开(公告)号：US08068732B2

公开(公告)日：2011-11-29

申请号：US12479206

申请日：2009-06-05

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： H04B10/00

CPC分类号： H04Q11/0062 ,  H04L41/12 ,  H04L41/145 ,  H04Q2011/0086 ,  H04Q2011/009

摘要： A network design apparatus includes an information acquiring unit acquiring optical network information, a section dividing unit dividing an optical network into linear sections, a combination candidate determining unit determining candidates for combinations of various kinds of optical transmission equipment to be placed in each station in each of the linear sections, a noise amount upper limit determining unit determining an upper limit to the amount of noise allowed for each wavelength path, and an equipment placement unit solving an integer programming problem having an objective function that minimizes the cost of the optical transmission equipment and OEO regenerators, subject to the constraints that one optical transmission equipment combination is selected for each linear section and that the number of OEO regenerators necessary for each wavelength path is determined by the cumulative amount of noise of the wavelength path and the noise upper limit determined for the wavelength path.

摘要翻译： 一种网络设计装置，包括：获取光网络信息的信息获取单元，将光网络划分成线性区段的区段划分单元;组合候选确定单元，确定各放置在每个站中的各种光传输设备的组合的候选项 线性部分的噪声量上限确定单元，确定每个波长路径允许的噪声量的上限;以及解决具有使光传输设备的成本最小化的目标函数的整数规划问题的设备布置单元 和OEO再生器，受到每个线性部分选择一个光传输设备组合的限制，并且每个波长路径所需的OEO再生器的数量由波长路径的累积噪声和确定的噪声上限确定 对于波长 路径

公开(公告)号：US20110229133A1

公开(公告)日：2011-09-22

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： H04J14/00

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：US20110103222A1

公开(公告)日：2011-05-05

申请号：US12913061

申请日：2010-10-27

申请人： Ryoichi MUTOH ,  Yasuki Fujii ,  Toru Katagiri

发明人： Ryoichi MUTOH ,  Yasuki Fujii ,  Toru Katagiri

IPC分类号： G06F11/00

CPC分类号： H04L12/437 ,  H04J3/085 ,  H04J2203/0042 ,  H04J2203/006

摘要： A signal transmission method includes causing each of a plurality of nodes to transfer, using the actually used line, a second signal in a second layer, in which one or a plurality of first signals in a first layer are contained, to a node adjacent in the first or the second direction when each of the plurality of nodes transmits or receives the first signal, when no failure occurs in a transmission path in a network, and causing a first node, located at an end of a failure point, to switch a transmission direction of the second signal and to send out the second signal to the backup line, and causing a second node, which is a transmission source or a reception destination of the first signal, to select one of the first and second directions, when a failure occurs in the transmission path in the network.

摘要翻译： 信号传输方法包括使多个节点中的每一个使用实际使用的线路将第一层中的一个或多个第一信号包含在第二层中的第二信号传送到邻近的节点 当所述多个节点中的每一个节点发送或接收所述第一信号时，当在网络中的传输路径中没有发生故障，并且使位于故障点的末端的第一节点切换到所述第一或第二方向时， 并且将第二信号发送到备用线路，并且使作为第一信号的发送源或接收目的地的第二节点选择第一和第二方向中的一个，当a 在网络中的传输路径中发生故障。

公开(公告)号：US07936749B2

公开(公告)日：2011-05-03

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： H04L12/50 ,  H04B10/08 ,  H04J14/02

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：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：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.