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    Skew compensation based on equalizer coefficients
    1.
    发明授权
    Skew compensation based on equalizer coefficients 有权
    基于均衡器系数的偏移补偿

    公开(公告)号：US09036751B1

    公开(公告)日：2015-05-19

    申请号：US13744205

    申请日：2013-01-17

    Applicant: ClariPhy Communications, Inc.

    Inventor： Shih Cheng Wang ,  Martin Serra ,  Cesar Sanchez Peñak ,  Mario Rafael Hueda ,  Alfredo Taddei ,  Diego Ernesto Crivelli ,  Hugo Santiago Carrer ,  Oscar Ernesto Agazzi

    IPC: H04B1/10 ,  H04L27/01

    CPC classification number: H04B10/0795 ,  H04B10/07 ,  H04B10/25073 ,  H04B10/614 ,  H04B10/616 ,  H04L7/0058 ,  H04L25/03 ,  H04L25/03019 ,  H04L25/03292 ,  H04L25/03878 ,  H04L27/01

    Abstract: A receiver applies a calibration method to compensate for skew between input channels. The receiver skew is estimated by observing the coefficients of an adaptive equalizer which adjusts the coefficients based on time-varying properties of the multi-channel input signal. The receiver skew is compensated by programming the phase of the sampling clocks for the different channels. Furthermore, during real-time operation of the receiver, channel diagnostics is performed to automatically estimate differential group delay and/or other channel characteristics based on the equalizer coefficients using a frequency averaging or polarization averaging approach. Framer information can furthermore be utilized to estimate differential group delay that is an integer multiple of the symbol rate. Additionally, a DSP reset may be performed when substantial signal degradation is detected based on the channel diagnostics information.

    Abstract translation: 接收机应用校准方法来补偿输入通道之间的偏斜。 通过观察基于多通道输入信号的时变特性来调整系数的自适应均衡器的系数来估计接收器偏移。 通过对不同通道的采样时钟的相位进行编程来补偿接收器偏移。 此外，在接收机的实时操作期间，执行信道诊断以使用频率平均或极化平均方法基于均衡器系数自动估计差分组延迟和/或其他信道特性。 还可以使用成帧器信息来估计作为符号率的整数倍的差分组延迟。 另外，当基于信道诊断信息检测到实质的信号劣化时，可以执行DSP复位。

    Systems and methods for biasing optical modulating devices
    4.
    发明授权
    Systems and methods for biasing optical modulating devices 有权
    用于偏置光调制装置的系统和方法

    公开(公告)号：US09496962B1

    公开(公告)日：2016-11-15

    申请号：US14316566

    申请日：2014-06-26

    Applicant: ClariPhy Communications, Inc.

    Inventor： Shih Cheng Wang ,  Jinwoo Cho ,  Shu Hao Fan

    IPC: H04B10/50

    CPC classification number: H04B10/50575 ,  H04B10/5053

    Abstract: Systems and methods described herein include methods and systems for controlling bias voltage provided to an optical modulating device. The optical modulating device is biased at a bias point that is different from a null point of the device such that an offset to the received optical power due to limited extinction ratio is reduced.

    Abstract translation: 本文描述的系统和方法包括用于控制提供给光调制装置的偏置电压的方法和系统。 光调制装置被偏置在与装置的零点不同的偏置点处，使得由于有限消光比而导致的对接收光功率的偏移减小。

    Channel diagnostics based on equalizer coefficients
    5.
    发明授权
    Channel diagnostics based on equalizer coefficients 有权
    基于均衡器系数的通道诊断

    公开(公告)号：US09094117B1

    公开(公告)日：2015-07-28

    申请号：US13744211

    申请日：2013-01-17

    Applicant: ClariPhy Communications, Inc.

    Inventor： Shih Cheng Wang ,  Seyedmohammadreza Motaghiannezam ,  Matthew C. Bashaw

    IPC: H04B1/10 ,  H04B10/07 ,  H04L27/01

    CPC classification number: H04B10/0795 ,  H04B10/07 ,  H04B10/25073 ,  H04B10/614 ,  H04B10/616 ,  H04L7/0058 ,  H04L25/03 ,  H04L25/03019 ,  H04L25/03292 ,  H04L25/03878 ,  H04L27/01

    Abstract: A receiver applies a calibration method to compensate for skew between input channels. The receiver skew is estimated by observing the coefficients of an adaptive equalizer which adjusts the coefficients based on time-varying properties of the multi-channel input signal. The receiver skew is compensated by programming the phase of the sampling clocks for the different channels. Furthermore, during real-time operation of the receiver, channel diagnostics is performed to automatically estimate differential group delay and/or other channel characteristics based on the equalizer coefficients using a frequency averaging or polarization averaging approach. Framer information can furthermore be utilized to estimate differential group delay that is an integer multiple of the symbol rate. Additionally, a DSP reset may be performed when substantial signal degradation is detected based on the channel diagnostics information.

    Abstract translation: 接收机应用校准方法来补偿输入通道之间的偏斜。 通过观察基于多通道输入信号的时变特性来调整系数的自适应均衡器的系数来估计接收器偏移。 通过对不同通道的采样时钟的相位进行编程来补偿接收器偏移。 此外，在接收机的实时操作期间，执行信道诊断以使用频率平均或极化平均方法基于均衡器系数自动估计差分组延迟和/或其他信道特性。 还可以使用成帧器信息来估计作为符号率的整数倍的差分组延迟。 另外，当基于信道诊断信息检测到实质的信号劣化时，可以执行DSP复位。

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