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    • 71. 发明专利
    • ノード装置および光通信システム
    • 节点设备和光通信系统
    • JP2014220551A
    • 2014-11-20
    • JP2013096173
    • 2013-05-01
    • 古河電気工業株式会社Furukawa Electric Co Ltd:The
    • KUMAGAI ATSUSHITSUJI YUTOMIURA MASAYUKI
    • H04L12/703H04B10/038H04B10/075H04L12/70
    • 【課題】ノード装置の機能が失われた場合でもシステム全体に影響を与えないノード装置を提供する。【解決手段】自ノード装置の異常発生を検出する検出手段(制御部10−1)と、異常検出時、自ノード装置は光信号をバイパスさせ、隣接する他のノード装置同士を直接接続するバイパス手段(光スイッチ4−1)と、バイパス手段の動作前に、他のノード装置に送信する光信号を通常状態から変更する変更手段(光インタフェース3−1,3−2)と、他のノード装置からの光信号を受信する光受信手段(光インタフェース3−1,3−2)と、他のノード装置の出力状態が通常状態から変更されたことを受信状態に基づいて検知する検知手段(光インタフェース3−1,3−2)と、検知結果に応じた処理を実行する実行手段(制御部10−1)とを有する。【選択図】図1
    • 要解决的问题:即使节点设备的功能丢失,也提供对整个系统没有影响的节点设备。解决方案:节点设备包括:用于检测发生的检测装置(控制单元10-1) 节点设备中的异常; 旁路装置(光开关4-1),用于在异常检测时使节点装置旁路光信号并直接连接其他相邻节点装置; 改变装置(光学接口3-1,3-2),用于在旁路装置操作之前将正在发送到另一节点装置的光信号从正常状态改变; 光接收装置(光接口3-1,3-2),用于从另一节点装置接收光信号; 检测装置(光接口3-1,3-2),用于根据接收状态检测另一节点装置的输出状态从正常状态的变化; 以及用于执行与检测结果相对应的处理的执行装置(控制单元10-1)。
    • 75. 发明专利
    • Los signal correction device, los signal correction method, los signal generating device, and optical receiver
    • LOS信号校正装置,LOS信号校正方法,LOS信号发生装置和光接收器
    • JP2011211378A
    • 2011-10-20
    • JP2010075456
    • 2010-03-29
    • Fujikura Ltd株式会社フジクラ
    • ABE SHINYA
    • H04B10/07H04B10/075H04B10/077H04B10/079H04B10/40H04B10/50H04B10/524H04B10/60H04B10/69
    • PROBLEM TO BE SOLVED: To provide a controller which can prevent alarm quality deterioration due to chattering.SOLUTION: A microcomputer 10 is provided with an edge detection unit 101 which detects an edge in a LOS (Loss of Signal) signal before correction, and an LOS output unit 102 which prepares a first state which outputs a value of the LOS signal before correction as a value of the LOS signal after correction and a second state which outputs a reversed value of the LOS signal before correction in the first state as a value of the LOS signal after correction. The LOS output unit 102 transits from the first state to the second state by making it as a trigger that the edge detection unit 101 detects the edge in the LOS signal before correction, and transits from the second state to the first state at the time when a predetermined time passes after the transition to the second state.
    • 要解决的问题:提供一种可以防止由于抖动引起的报警质量劣化的控制器。解决方案:微计算机10设置有边缘检测单元101,其检测校正之前的LOS(丢失信号)信号中的边缘,并且 LOS输出单元102,其准备在校正之前输出LOS信号的值作为校正后的LOS信号的值的第一状态,以及在第一状态下将修正之前的LOS信号的反相值作为值输出的第二状态 的LOS信号修正后。 LOS输出单元102通过将其作为触发而将其从第一状态转变到第二状态,边缘检测单元101在校正之前检测到LOS信号中的边缘,并且在第二状态转换到第一状态时, 在转变到第二状态之后经过预定时间。
    • 78. 发明专利
    • Optical add-drop multiplexer
    • 光学增益多路复用器
    • JP2009290487A
    • 2009-12-10
    • JP2008140060
    • 2008-05-28
    • Fujitsu Ltd富士通株式会社
    • NAKAZATO HIROAKIHANAZAWA HIRONARIOKUDA TAKASHI
    • H04B10/07H04B10/075H04B10/077H04B10/079H04J14/00H04J14/02
    • G02B6/29383G02B6/2931G02B6/29313H04J14/0204H04J14/0209H04J14/021H04J14/0212
    • PROBLEM TO BE SOLVED: To measure and check a level diagram while being closed with respect to a self-device irrespective of whether it is under initial device construction or under operation.
      SOLUTION: An optical add-drop multiplexer is configured such that an optically multiplexed signal input via an optical cable is divided into individual optical signals of different wavelengths and the individual optical signals of different wavelengths are branched and supplied to a transponder, and at the same time, an optical signal from the transponder is added onto the individual optical signals of different wavelengths and then the individual optical signals of different wavelengths are combined and output to other optical cable. The optical add-drop multiplexer includes a means for adding an optical signal for measurement for each wavelength to an optical multi-core cord for connecting the individual optical signals of different wavelengths in the equipment; a means for preventing the outflow of the optical signal for measurement to the optical cable side for each wavelength; a means for measuring the optical levels of the individual optical signals of different wavelengths in a pre-stage and a post-stage of the optical multi-core cord for each wavelength; a means for calculating a value of loss of the optical multi-core cord for each wavelength according to the measured optical level; and a means for notifying the calculated value of loss for each wavelength of the optical multi-core cord.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:无论是在初始设备构造还是正在运行中,都能够在关于自身设备关闭时测量和检查水平图。 解决方案:光分插复用器被配置为使得经由光缆输入的光复用信号被分成不同波长的单个光信号,并且不同波长的各个光信号被分支并提供给应答器,并且 同时,将来自应答器的光信号加到不同波长的各个光信号上,然后组合不同波长的各个光信号并输出​​到其他光缆。 光分插复用器包括用于将用于每个波长的测量的光信号添加到用于连接设备中不同波长的各个光信号的光多核线的装置; 用于每个波长防止用于光缆测量的光信号流向光缆侧的装置; 用于在每个波长的光学多芯线的前级和后级中测量不同波长的各个光信号的光学水平的装置; 根据测量的光学水平计算每个波长的光学多芯线的损耗值的装置; 以及用于通知光学多芯线的每个波长的计算的损耗值的装置。 版权所有(C)2010,JPO&INPIT
    • 80. 发明专利
    • Network management apparatus and program
    • 网络管理装置和程序
    • JP2008182639A
    • 2008-08-07
    • JP2007016084
    • 2007-01-26
    • Kddi CorpKddi株式会社
    • MIYAZAWA MASANORITSURITANI TAKEHIROOTANI TOMOHIRO
    • H04L12/70H04B10/07H04B10/075H04B10/291H04B10/556
    • PROBLEM TO BE SOLVED: To provide a network management apparatus that can immediately determine what is influenced by a path specified by logical information such as an address, from an alarm generated in a physical position.
      SOLUTION: The network management apparatus comprises: means for acquiring path information specifying a route of a path using logical information provided to a link constituting a path from each communication device; means for acquiring information indicating a correspondence relationship between logical information of a link and physical information of an optical interface accommodating the link from each communication device; and means for producing physical route information specifying a route of the path with physical information from the correspondence relationship between logical information of a link and physical information of an optical interface accommodating the link.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种网络管理装置,其可以从在物理位置处产生的警报中立即确定由诸如地址的逻辑信息指定的路径的影响。 网络管理装置包括:使用提供给构成从每个通信设备的路径的链路的逻辑信息获取指定路径的路径的路径信息的装置; 用于获取指示链接的逻辑信息与容纳来自每个通信设备的链路的光接口的物理信息之间的对应关系的信息的装置; 以及用于根据链路的逻辑信息和容纳该链路的光接口的物理信息之间的对应关系,生成指定具有物理信息的路径的路由的物理路由信息的装置。 版权所有(C)2008,JPO&INPIT