公开(公告)号：US20100188970A1

公开(公告)日：2010-07-29

申请号：US12618187

申请日：2009-11-13

申请人： Yasuki FUJII ,  Yuji Tochio ,  Shinya Kano ,  Ryoichi Mutoh

发明人： Yasuki FUJII ,  Yuji Tochio ,  Shinya Kano ,  Ryoichi Mutoh

IPC分类号： G06F11/00

CPC分类号： H04L12/437 ,  H04L47/72 ,  H04L47/781

摘要： A node apparatus in a ring network in which a protection path is provided that cycles around the ring network and transports a signal in a direction opposite to a signal transporting direction of the working path and in the event of a failure of the working path, a node apparatus adjacent to the failure loops back the signal flowing on the working path onto the protection path, the node apparatus comprising: allowable bandwidth storing unit which stores a maximum total bandwidth value, which represents the largest value among per-link total values of bandwidths that a plurality of working paths use on respective links connecting between the node apparatuses, as an allowable bandwidth for a shared path; and bandwidth control unit which controls the bandwidth of traffic flowing on the protection path, in accordance with the allowable bandwidth.

摘要翻译： 环形网络中的节点装置，其中提供保护路径，其围绕环形网络循环并且沿与工作路径的信号传送方向相反的方向传送信号，并且在工作路径发生故障的情况下， 所述节点装置包括：允许带宽存储单元，其存储最大总带宽值，其表示带宽的每链路总值中的最大值 多个工作路径用于在节点设备之间连接的相应链路上，作为用于共享路径的可允许带宽; 以及带宽控制单元，其根据允许带宽控制在保护路径上流动的流量的带宽。

公开(公告)号：US08432792B2

公开(公告)日：2013-04-30

申请号：US12618187

申请日：2009-11-13

申请人： Yasuki Fujii ,  Yuji Tochio ,  Shinya Kano ,  Ryoichi Mutoh

发明人： Yasuki Fujii ,  Yuji Tochio ,  Shinya Kano ,  Ryoichi Mutoh

IPC分类号： G08C15/00

CPC分类号： H04L12/437 ,  H04L47/72 ,  H04L47/781

摘要： A node apparatus in a ring network in which a protection path is provided that cycles around the ring network and transports a signal in a direction opposite to a signal transporting direction of the working path and in the event of a failure of the working path, a node apparatus adjacent to the failure loops back the signal flowing on the working path onto the protection path, the node apparatus comprising: allowable bandwidth storing unit which stores a maximum total bandwidth value, which represents the largest value among per-link total values of bandwidths that a plurality of working paths use on respective links connecting between the node apparatuses, as an allowable bandwidth for a shared path; and bandwidth control unit which controls the bandwidth of traffic flowing on the protection path, in accordance with the allowable bandwidth.

摘要翻译： 环形网络中的节点装置，其中提供保护路径，其围绕环形网络循环并且沿与工作路径的信号传送方向相反的方向传送信号，并且在工作路径发生故障的情况下， 所述节点装置包括：允许带宽存储单元，其存储最大总带宽值，其表示带宽的每链路总值中的最大值 多个工作路径用于在节点设备之间连接的相应链路上，作为用于共享路径的可允许带宽; 以及带宽控制单元，其根据允许带宽控制在保护路径上流动的流量的带宽。

公开(公告)号：US20100074102A1

公开(公告)日：2010-03-25

申请号：US12493030

申请日：2009-06-26

申请人： Ryoichi MUTOH ,  Yuji Tochio ,  Shinya Kano

发明人： Ryoichi MUTOH ,  Yuji Tochio ,  Shinya Kano

IPC分类号： H04L12/26

CPC分类号： H04L41/0668 ,  H04L12/413 ,  H04L12/437 ,  H04L12/4625 ,  H04L12/4633 ,  H04L12/4645

摘要： A transmission device includes an ingress edge device that receives a frame, an egress edge device having a plurality of destination addresses, and a rewrite unit that rewrites a destination MAC address of the frame to another destination MAC address of the egress edge device when detecting a failure on a working path between the ingress edge device and the egress edge device.

摘要翻译： 传输设备包括接收帧的入口边缘设备，具有多个目的地地址的出口边缘设备，以及重写单元，当检测到出口边缘设备时，将该目的地MAC地址重写到出口边缘设备的另一目的地MAC地址 入侵边缘设备和出口边缘设备之间的工作路径故障。

公开(公告)号：US08873380B2

公开(公告)日：2014-10-28

申请号：US13401209

申请日：2012-02-21

申请人： Yuji Tochio

发明人： Yuji Tochio

IPC分类号： G01R31/08 ,  H04L12/40 ,  H04L12/427 ,  H04L12/46 ,  H04L12/437

CPC分类号： H04L12/427 ,  H04L12/40189 ,  H04L12/437 ,  H04L12/4637

摘要： In a multi-ring communication network, first and second rings include first and second connection nodes, respectively, that are adjacently connected to each other. The first connection node receives, from adjacent nods, traffic information storing a pair of input and output node identifiers in association with each of storage areas included in a frame to be transmitted, where the input node identifier identifies an adjacent node from which data is inputted, and the output node identifier identifies an adjacent node to which the data is outputted. When the received traffic information includes the output node identifier identifying the second connection node, the first connection node sets a plurality of redundant path segments each including the second connection node, based on the received traffic information, where the plurality of redundant path segments includes a currently-used path segment.

摘要翻译： 在多环通信网络中，第一和第二环分别包括彼此相邻连接的第一和第二连接节点。 第一连接节点从相邻节点接收与要发送的帧中包括的每个存储区域相关联地存储一对输入和输出节点标识符的业务信息，其中输入节点标识符标识从其输入数据的相邻节点 ，并且输出节点标识符识别输出数据的相邻节点。 当接收到的交通信息包括标识第二连接节点的输出节点标识符时，第一连接节点基于接收到的交通信息设置每个包括第二连接节点的多个冗余路径段，其中多个冗余路径段包括 当前使用的路径段。

公开(公告)号：US07907516B2

公开(公告)日：2011-03-15

申请号：US11822525

申请日：2007-07-06

申请人： Yuji Tochio ,  Akio Endo

发明人： Yuji Tochio ,  Akio Endo

IPC分类号： G01R31/08

CPC分类号： H04L12/423

摘要： A plurality of nodes are connected to one another so as to form a ring network. A pseudo master node blocks relay of user data on one side, and transmits in the ring network a health packet that contains information about a priority order in which the pseudo master node is to be set as a master node. If the pseudo master node receives the health packet transmitted by it, or receives a health packet transmitted by another node, the pseudo master node judges whether the pseudo master node is to be set as a master node based on the priority order contained in the received health packet.

摘要翻译： 多个节点彼此连接以形成环网。 伪主节点阻止一方的用户数据的中继，并且在环形网中发送包含关于伪主节点将被设置为主节点的优先顺序的信息的健康分组。 如果伪主节点接收到由其发送的健康分组，或者接收到另一个节点发送的健康分组，则伪主节点根据包含在接收到的优先级顺序来判断是否将伪主节点设置为主节点 健康包。

公开(公告)号：US07596290B2

公开(公告)日：2009-09-29

申请号：US11761958

申请日：2007-06-12

申请人： Yoshio Sakai ,  Yuji Tochio ,  Kazuyuki Mori ,  Atsuo Ishizuka

发明人： Yoshio Sakai ,  Yuji Tochio ,  Kazuyuki Mori ,  Atsuo Ishizuka

IPC分类号： G02B6/26 ,  G02B6/42 ,  G02F1/29 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04B10/08 ,  H04B17/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： G02B6/3586 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3588 ,  H04Q11/0005 ,  H04Q2011/0049

摘要： A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror, and outputs the deflection control amount to a driving unit. When an input and an output ports are same, optical offset of the tilt mirror is calculated based on optimal angle at which the light detector detects an optimal point of the light receiving level. Whenever the input and the output port are different, a structure parameter of the tilt mirror is calculated based on the optical offset and the optimal angle. The optical offset and the structure parameter are stored in a memory as a test result.

摘要翻译： 光源将光信号提供给光开关，检测器检测光接收电平。 控制单元改变用于改变倾斜镜的角度的偏转控制量，并将偏转控制量输出到驱动单元。 当输入端口和输出端口相同时，基于光检测器检测到光接收电平的最佳点的最佳角度来计算倾斜镜的光学偏移。 无论何时输入和输出端口不同，基于光学偏移和最佳角度计算倾斜镜的结构参数。 光学偏移和结构参数作为测试结果存储在存储器中。

公开(公告)号：US20090010182A1

公开(公告)日：2009-01-08

申请号：US12230608

申请日：2008-09-02

申请人： Yuji Tochio

发明人： Yuji Tochio

IPC分类号： H04L12/28

CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： The present invention provides a protection providing method in a network configuration having a customer edge apparatus redundantly connected to a first provider edge apparatus and a second provider edge apparatus for setting a primary provider edge apparatus and a secondary provider edge apparatus with the customer edge apparatus. The first provider edge apparatus transmits a first signaling message received when establishing a pseudowire to the customer edge apparatus. The second provider edge apparatus also transmits a second signaling message received when establishing a pseudowire to the customer edge apparatus. The customer edge apparatus compares the first and second signaling messages and sets the primary provider edge apparatus and the secondary provider edge apparatus.

摘要翻译： 本发明提供了一种网络配置中的保护提供方法，其具有冗余地连接到第一提供商边缘设备的客户边缘设备和用于设置主要提供商边缘设备的第二提供商边缘设备和具有客户边缘设备的辅助提供商边缘设备。 第一提供商边缘装置在向客户边缘装置建立伪线时发送接收到的第一信令消息。 第二提供商边缘装置还在向客户边缘装置建立伪线时发送接收到的第二信令消息。 客户边缘设备比较第一信令消息和第二信令消息，并设置主提供商边缘设备和辅助提供商边缘设备。

公开(公告)号：US06563613B1

公开(公告)日：2003-05-13

申请号：US09203099

申请日：1998-12-02

申请人： Yuji Tochio

发明人： Yuji Tochio

IPC分类号： H04B1008

CPC分类号： H04B10/077 ,  H04B10/035 ,  H04B10/071 ,  H04B10/0795 ,  H04B10/272 ,  H04J3/0682 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： In an optical subscriber network having a station, a plurality of subscriber units and an optical transmission line through which optical signals are sent and received by the station and plurality of subscriber units, (1) wavelengths &lgr;1-&lgr;n for delay time measurement are allocated respective ones of the subscriber units; (2) delay-measurement optical signals having these wavelengths are wavelength-multiplexed and transmitted, the number of these multiplexed optical signals being equivalent to the number of subscribers; (3) the wavelength-multiplexed delay-measurement optical signals are distributed to each of the subscriber units via a star coupler in the optical transmission line; (4) each subscriber unit selects, by wavelength selection, a delay-measurement optical signal having the wavelength that has been allocated to it, and loops back the selected optical signal; (5) the star coupler of the optical transmission line combines the delay-measurement optical signals returned from each of the subscriber units and sends the combined signals to the station; and (6) the station separates, according to each subscriber, the delay-measurement optical signals returned, and measures delay time to each subscriber unit based upon the time between transmission and receipt of the associated delay-measurement optical signal.

摘要翻译： 在具有站，多个用户单元和光传输线路的光用户网络中，由站和多个用户单元发送和接收光信号，（1）用于延迟时间测量的波长lambd1-lambdn分别被分配 用户单位中的一个; （2）具有这些波长的延迟测量光信号被波分复用和发送，这些复用光信号的数量等于用户数; （3）波分复用延迟测量光信号经由光传输线路中的星形耦合器分配给每个用户单元; （4）每个用户单元通过波长选择来选择具有分配给其的波长的延迟测量光信号，并且回送所选择的光信号; （5）光传输线的星形耦合器组合从每个用户单元返回的延迟测量光信号并将组合的信号发送到站; 以及（6）根据每个用户，所述站根据返回的延迟测量光信号分离，并且基于相关延迟测量光信号的发送和接收之间的时间来测量每个用户单元的延迟时间。

公开(公告)号：US06215567B1

公开(公告)日：2001-04-10

申请号：US09013539

申请日：1998-01-26

申请人： Yuji Tochio

发明人： Yuji Tochio

IPC分类号： H04J1402

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/08

摘要： An optical transmitting apparatus used in an optical communicating system in an optical communication network using a broad-band characteristic of fibers, which can transmit wavelength division multiplexed optical signals over the optical communication network, has an optical signal generating unit for generating optical signals for the respective plural opposite apparatus by using a combination of p (p; an integer not less than 2) wavelengths set in advance for each of the plural opposite apparatus, and a wavelength division multiplexing transmitting unit for wavelength division multiplexing the optical signals generated by the optical signal generating unit and transmitting the optical signals, thereby accommodating subscriber terminals larger in number than the number of times of wavelength division multiplexing while realizing privacy protection.

摘要翻译： 在光通信系统中使用的光通信系统中的光发送装置具有用于生成光信号的光信号生成单元，该光通信系统使用能够通过光通信网络发送波分复用光信号的光纤的宽带特性， 通过使用对于多个相对装置中的每一个预先设定的p（p;不小于2的整数）波长的组合的多个相反装置，以及用于波分复用由光学产生的光信号的波分复用发送单元 信号发生单元并发送光信号，从而在实现隐私保护的同时容纳比波分复用次数更多的用户终端。

公开(公告)号：US07912329B2

公开(公告)日：2011-03-22

申请号：US12542975

申请日：2009-08-18

申请人： Yoshio Sakai ,  Yuji Tochio ,  Kazuyuki Mori ,  Atsuo Ishizuka

发明人： Yoshio Sakai ,  Yuji Tochio ,  Kazuyuki Mori ,  Atsuo Ishizuka

IPC分类号： G02B6/26 ,  G02B6/42 ,  G01R31/08 ,  H04Q11/00 ,  H04B10/08 ,  H04J14/00

CPC分类号： G02B6/3586 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3588 ,  H04Q11/0005 ,  H04Q2011/0049

摘要： A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror, and outputs the deflection control amount to a driving unit. When an input and an output ports are same, optical offset of the tilt mirror is calculated based on optimal angle at which the light detector detects an optimal point of the light receiving level. Whenever the input and the output port are different, a structure parameter of the tilt mirror is calculated based on the optical offset and the optimal angle. The optical offset and the structure parameter are stored in a memory as a test result.

摘要翻译： 光源将光信号提供给光开关，检测器检测光接收电平。 控制单元改变用于改变倾斜镜的角度的偏转控制量，并将偏转控制量输出到驱动单元。 当输入端口和输出端口相同时，基于光检测器检测到光接收电平的最佳点的最佳角度来计算倾斜镜的光学偏移。 无论何时输入和输出端口不同，基于光学偏移和最佳角度计算倾斜镜的结构参数。 光学偏移和结构参数作为测试结果存储在存储器中。