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    Optical signal processing device, optical signal processing method and optical signal processing program
    1.
    发明公开
    Optical signal processing device, optical signal processing method and optical signal processing program 审中-公开
    Optische Signalverarbeitungsvorrichtung，optisches Signalverarbeitungsverfahren und optisches Signalverarbeitungsprogramm

    公开(公告)号：EP2811669A1

    公开(公告)日：2014-12-10

    申请号：EP14169974.4

    申请日：2014-05-27

    申请人： FUJITSU LIMITED ,  Fujitsu Telecom Networks Limited

    发明人： Saito, Taku ,  Fukumitsu, Katsumi ,  Takeuchi, Osamu ,  Araki, Hirofumi ,  Naito, Kanji ,  Murakami, Shoichi

    IPC分类号： H04B10/61 ,  H04L27/38

    CPC分类号： H04B10/0795 ,  H04B10/6165 ,  H04L27/2053 ,  H04L27/223

    摘要： An optimization unit(44) in an optical receiver(3) divides a symbol region out of a plurality of symbol regions(C1 to C4) into which signal points that specifies symbol information included in an optical signal are classified, into a plurality of division regions(B1 to B4) from the symbol center coordinate of the symbol region. Moreover, the optimization unit accumulates the signal points of the symbol information for every division region in the symbol region. Furthermore, based on the accumulated number of signal points for every division region, the optimization unit controls the average length of a phase estimation unit(41) when the phase noise of the optical signal is calculated.

    摘要翻译： 光接收器（3）中的优化单元（44）将指定包括在光信号中的符号信息的信号点分类的多个符号区域（C1至C4）中的符号区域划分成多个分区 从符号区域的符号中心坐标的区域（B1至B4）。 此外，优化单元对于符号区域中的每个划分区域累积符号信息的信号点。 此外，基于每个划分区域的累积信号点数，当计算出光信号的相位噪声时，优化单元控制相位估计单元（41）的平均长度。

    Failure protection method and node apparatus
    2.
    发明公开
    Failure protection method and node apparatus 审中-公开
    Verfahren zum Fehlerschutz und Knotenvorrichtung

    公开(公告)号：EP2660999A2

    公开(公告)日：2013-11-06

    申请号：EP13164265.4

    申请日：2013-04-18

    申请人： FUJITSU LIMITED

    发明人： Togo, Toshihiro ,  Naito, Kanji ,  Katagiri, Toru ,  Takeguchi, Koji ,  Nakashima, Mineshi

    IPC分类号： H04J3/14 ,  H04J3/16

    CPC分类号： H04L41/0654 ,  H04J3/14 ,  H04J3/1652 ,  H04J3/1664 ,  H04J2203/006 ,  H04L41/0663 ,  H04L43/0882 ,  H04L43/16

    摘要： A failure protection method of a network connecting between nodes by multiple working paths and a protection path is disclosed. An allocation bandwidth is determined to allocate to a detected path where a failure is detected in multiple paths being set to the multiple working paths, depending on the detected path. The detected path is switched from one of the multiple working paths to the protection path. Data to be transmitted by the detected path is transmitted by using the allocation bandwidth determined within an entire bandwidth of the protection path.

    摘要翻译： 公开了通过多个工作路径和保护路径在节点之间连接的网络的故障保护方法。 确定分配带宽，以分配给检测到的路径，其中根据检测到的路径，在多个路径中检测到故障被设置为多个工作路径。 检测到的路径从多个工作路径之一切换到保护路径。 通过使用在保护路径的整个带宽内确定的分配带宽来发送由检测到的路径发送的数据。