利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.014 秒)

    Inverse channel apparatus and transmitter, receiver and system containing the apparatus
    1.
    发明授权
    Inverse channel apparatus and transmitter, receiver and system containing the apparatus 有权
    逆信道装置和包含该装置的发射机，接收机和系统

    公开(公告)号：EP2639976B1

    公开(公告)日：2018-04-25

    申请号：EP13158130.8

    申请日：2013-03-07

    申请人： FUJITSU LIMITED

    发明人： Yan, Weizhen ,  Tao, Zhenning

    IPC分类号： H04B10/2507 ,  H04B10/2543

    CPC分类号： H04B10/2507 ,  H04B10/2543

    摘要： The embodiments of the present invention provide an inverse channel apparatus and transmitter, receiver and system containing the apparatus; wherein the inverse channel apparatus comprises: an inverse nonlinear calculating unit configured to perform nonlinear additive calculation and nonlinear multiplicative calculation on input signals, so as to obtain signals containing nonlinear damage of the input signals on at least one polarization state; and an inverse linear calculating unit configured to calculate signals containing nonlinear damage and linear damage of the input signals on at least one polarization state according to the signals containing nonlinear damage of the input signals on at least one polarization state and a linear function of a channel. The advantages of the embodiments of the present invention exist in that a transmitted signal is recovered by being passed through an inverse channel after or before being transmitted in a practical channel, thereby effectively compensating for intra-channel nonlinear damage of an optical fiber communication system.

    Method and apparatus for compensating nonlinear distortions in intensity modulation-direct detection system
    2.
    发明公开
    Method and apparatus for compensating nonlinear distortions in intensity modulation-direct detection system 有权
    一种用于在系统补偿非线性失真的方法和装置IMDD

    公开(公告)号：EP2651084A2

    公开(公告)日：2013-10-16

    申请号：EP13163313.3

    申请日：2013-04-11

    申请人： FUJITSU LIMITED

    发明人： Yan, Weizhen ,  Liu, Bo ,  Li, Lei ,  Tao, Zhenning ,  Tanaka, Toshiki

    IPC分类号： H04L25/02

    CPC分类号： H04B10/2507 ,  H04L25/0202 ,  H04L25/03019 ,  H04L2025/03375 ,  H04L2025/03592

    摘要： The embodiments of the present invention provide a method and an apparatus for compensating nonlinear distortions in an intensity modulation-direct detection (IM-DD) system; wherein the method comprises: calculating, according to nonlinear coefficients and differences between values of an input signal at different time, nonlinear distortions of the input signal, so as to eliminate the nonlinearity distortions. By applying the method and the apparatus provided by the embodiments of the present invention, nonlinear cost of the IM-DD system can be effectively reduced, thereby improving the system capacity.

    摘要翻译： 本发明的实施例提供了在强度调制的直接检测（IM-DD）系统补偿非线性失真的方法和装置来; worin该方法包括：计算，gemäß非线性系数和在不同时间的输入信号的值之间的差，在输入信号的非线性失真，从而消除非线性失真。 通过应用该方法和通过本发明的实施例提供的装置中，IM-DD系统的非线性成本可以有效地降低，从而改善了系统容量。

    Inverse channel apparatus and transmitter, receiver and system containing the apparatus
    6.
    发明公开
    Inverse channel apparatus and transmitter, receiver and system containing the apparatus 有权
    Inverskanalvorrichtung sowie Sender，Empfängerund System mit der Vorrichtung

    公开(公告)号：EP2639976A1

    公开(公告)日：2013-09-18

    申请号：EP13158130.8

    申请日：2013-03-07

    申请人： FUJITSU LIMITED

    发明人： Yan, Weizhen ,  Tao, Zhenning

    IPC分类号： H04B10/2507 ,  H04B10/2543

    CPC分类号： H04B10/2507 ,  H04B10/2543

    摘要： The embodiments of the present invention provide an inverse channel apparatus and transmitter, receiver and system containing the apparatus; wherein the inverse channel apparatus comprises: an inverse nonlinear calculating unit configured to perform nonlinear additive calculation and nonlinear multiplicative calculation on input signals, so as to obtain signals containing nonlinear damage of the input signals on at least one polarization state; and an inverse linear calculating unit configured to calculate signals containing nonlinear damage and linear damage of the input signals on at least one polarization state according to the signals containing nonlinear damage of the input signals on at least one polarization state and a linear function of a channel. The advantages of the embodiments of the present invention exist in that a transmitted signal is recovered by being passed through an inverse channel after or before being transmitted in a practical channel, thereby effectively compensating for intra-channel nonlinear damage of an optical fiber communication system.

    摘要翻译： 本发明的实施例提供了一种反向信道装置和包含该装置的发射机，接收机和系统; 其中所述反向信道装置包括：反非线性计算单元，被配置为对输入信号执行非线性加法计算和非线性乘法运算，以便在至少一个极化状态下获得包含所述输入信号的非线性损伤的信号; 以及逆线性计算单元，被配置为根据在至少一个极化状态和通道的线性函数中包含输入信号的非线性损伤的信号，计算包含至少一个偏振状态的输入信号的非线性损伤和线性损伤的信号 。 本发明的实施例的优点在于，通过在实际信道中传输之后或之后通过反向信道来恢复发送信号，从而有效地补偿光纤通信系统的信道内非线性损伤。

    Method and apparatus for compensating nonlinear damage
    8.
    发明公开
    Method and apparatus for compensating nonlinear damage 有权
    Verfahren und Vorrichtung zum Ausgleich eines nicht linearen Schadens

    公开(公告)号：EP2495890A1

    公开(公告)日：2012-09-05

    申请号：EP12150909.5

    申请日：2012-01-12

    申请人： Fujitsu Limited

    发明人： Yan, Weizhen ,  Tao, Zhenning ,  Hoshida, Takeshi

    IPC分类号： H04B10/06 ,  H04L25/02

    CPC分类号： H04L25/0202 ,  H04B10/6971

    摘要： The present invention relates to a method and an apparatus for compensating nonlinear damage. The method and apparatus being used in a dual-polarization communication system, the method comprising: calculating, according to input time-domain signals, a plurality of multiplicative parameters indicative of nonlinear damages to the input signals; constructing a plurality of multiplicators by using the plurality of multiplicative parameters; and compensating the input time-domain signals by using the plurality of multiplicators.

    摘要翻译： 本发明涉及一种用于补偿非线性损伤的方法和装置。 所述方法和装置用于双极化通信系统中，所述方法包括：根据输入时域信号，计算指示对所述输入信号的非线性损伤的多个乘法参数; 通过使用所述多个乘法参数构造多个乘法器; 以及通过使用所述多个乘法器来补偿所述输入时域信号。

    Method and apparatus for compensating nonlinear damage
    9.
    发明公开
    Method and apparatus for compensating nonlinear damage 审中-公开
    用于补偿非线性损耗的方法和设备

    公开(公告)号：EP2495888A1

    公开(公告)日：2012-09-05

    申请号：EP12150907.9

    申请日：2012-01-12

    申请人： Fujitsu Limited

    发明人： Yan, Weizhen ,  Tao, Zhenning ,  Hoshida, Takeshi

    IPC分类号： H04B10/00

    CPC分类号： H04B10/255 ,  H04B10/6971

    摘要： A Method and apparatus for compensating nonlinear damage are disclosed. The method for compensating nonlinear damage, comprising: determining an additive parameter indicating an amount of nonlinear damage based on a plurality of sampled signal sets among which a sampling time of an input signal varies according to different time; and subtracting the additive parameter from the input signal.

    摘要翻译： 一种用于补偿非线性损伤的方法和装置游离缺失光盘。 用于补偿非线性损伤的方法，包括：添加剂参数指示基于采样的信号集的多个之间的输入信号的采样时间变化雅丁到不同的时间非线性损伤的量确定性开采; 并减去从输入信号的添加剂参数。

    Apparatus and method for cross phase modulation recovery
    10.
    发明公开
    Apparatus and method for cross phase modulation recovery 审中-公开
    Vorrichtung und Verfahren zur Kreuzphasen-Modulationswiederherstellung

    公开(公告)号：EP2413555A2

    公开(公告)日：2012-02-01

    申请号：EP11165444.8

    申请日：2011-05-10

    申请人： FUJITSU LIMITED

    发明人： Yan, Weizhen ,  Tao, Zhenning

    IPC分类号： H04L27/06 ,  H04L27/20

    CPC分类号： H04L27/20 ,  H04L5/04 ,  H04L25/03006 ,  H04L27/06 ,  H04L27/3854

    摘要： Apparatus and method for cross phase modulation recovery are disclosed. An apparatus for cross phase modulation recovery may include M stages of cross phase modulation recovering devices connected in cascade, wherein M≥2, and each stage of the M-stages of cross phase modulation recovering devices is configured to perform cross phase modulation recovery to a polarization de-multiplexed signal input into the each stage. An optical coherent receiver including such an apparatus for cross phase modulation recovery is also disclosed.

    摘要翻译： 公开了用于交叉相位调制恢复的装置和方法。 用于交叉相位调制恢复的装置可以包括级联连接的M级交叉相位调制恢复装置，其中M≥2，并且跨越相位调制恢复装置的M级的每一级被配置为执行交叉相位调制恢复 输入到每个级的极化解复用信号。 还公开了一种包括用于交叉相位调制恢复的装置的光学相干接收机。