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    BLIND EQUALIZATION TAP COEFFICIENT ADAPTATION IN OPTICAL SYSTEMS
    11.
    发明申请
    BLIND EQUALIZATION TAP COEFFICIENT ADAPTATION IN OPTICAL SYSTEMS 有权
    光学系统中的盲均衡技术适应技术

    公开(公告)号：US20150117511A1

    公开(公告)日：2015-04-30

    申请号：US14527206

    申请日：2014-10-29

    Applicant: FINISAR CORPORATION

    Inventor： Ilya Lyubomirsky ,  Jonathan Paul King

    IPC: H04L25/03

    CPC classification number: H04L25/0307 ,  H04B10/0795 ,  H04L25/03019 ,  H04L25/03038 ,  H04L25/03044 ,  H04L25/0305 ,  H04L25/03057 ,  H04L25/03133 ,  H04L25/03885 ,  H04L27/01 ,  H04L2025/0349 ,  H04L2025/03509 ,  H04L2025/03668 ,  H04Q2011/0083

    Abstract: A method of blind tap coefficient adaptation includes receiving a digital data signal including random digital data, equalizing a first portion of the digital data signal using a first set of predetermined tap coefficients and a second portion of the digital data signal using a second set of predetermined tap coefficients. The method includes generating a first eye diagram and a second eye diagram from a first portion and a second portion of an equalized signal, respectively. The first eye diagram is compared with the second eye diagram to determine which of the sets of predetermined tap coefficients results in a data signal having a higher signal quality. The method includes inputting to an equalizer as an initial set of tap coefficients the first set of predetermined tap coefficients or the second set of predetermined tap coefficients according to the determination.

    Abstract translation: 盲抽头系数适配的方法包括：接收包括随机数字数据的数字数据信号，使用第一组预定抽头系数对数字数据信号的第一部分进行均衡，以及使用第二组预定的抽头系数的数字数据信号的第二部分 抽头系数。 该方法包括分别从均衡信号的第一部分和第二部分生成第一眼图和第二眼图。 将第一眼图与第二眼图进行比较，以确定预定抽头系数中的哪一组导致具有较高信号质量的数据信号。 该方法包括根据该确定，将均衡器作为初始抽头系数集合输入第一组预定抽头系数或第二组预定抽头系数。

    Clock recovery and equalizer estimation in a multi-channel receiver
    12.
    发明授权
    Clock recovery and equalizer estimation in a multi-channel receiver 有权

    公开(公告)号：US10122523B2

    公开(公告)日：2018-11-06

    申请号：US15451227

    申请日：2017-03-06

    Applicant: FINISAR CORPORATION

    Inventor： Ilya Lyubomirsky ,  The′ Linh Nguyen

    IPC: H04B10/69 ,  H04L7/00 ,  H04L25/03 ,  H04L25/14

    Abstract: A multi-channel receiver that includes a first clock recovery unit configured to recover a first clock signal associated with a first optical channel is disclosed. A first coefficient estimation unit estimates a first set of coefficients using the first clock signal. A second clock recovery unit configured to recover a second clock signal associated with a second optical channel using the first clock signal as a reference clock signal. A second coefficient estimation unit estimates a second set of coefficients using the first set of coefficients.

    DATA COMMUNICATION USING MULTIPLE CHANNELS
    13.
    发明申请
    DATA COMMUNICATION USING MULTIPLE CHANNELS 有权
    使用多通道的数据通信

    公开(公告)号：US20160142150A1

    公开(公告)日：2016-05-19

    申请号：US14943926

    申请日：2015-11-17

    Applicant: Finisar Corporation

    Inventor： Ilya Lyubomirsky ,  Christopher Kocot ,  Jonathan Paul King ,  Sascha Hallstein ,  Brendan Hamel-Bissell

    IPC: H04B10/564 ,  H04B10/25 ,  H04B10/50

    CPC classification number: H04J14/0257 ,  H04J14/0221

    Abstract: A method of transmitting data may include receiving feedback information that includes effective channel bandwidths, signal-to-noise ratios (SNRs) associated with multiple optical channels on an optical link, and individual SNRs associated with subcarriers on each optical channel. The method may include determining multiple subcarrier power allocation schemes based on the feedback information. Each subcarrier power allocation scheme may be associated with a corresponding optical channel from the multiple optical channels and may be configured to allocate a signal power among subcarriers configured to transmit on the corresponding optical channel. The method may include determining, based on the feedback information, an optical power allocation scheme configured to allocate an optical power among the multiple optical channels. The method may include transmitting data on the multiple optical channels based on the multiple subcarrier power allocation schemes and the optical power allocation scheme.

    Abstract translation: 发送数据的方法可以包括接收包括有效信道带宽，与光链路上的多个光信道相关联的信噪比（SNR）以及与每个光信道上的子载波相关联的各个SNR的反馈信息。 该方法可以包括基于反馈信息确定多个子载波功率分配方案。 每个子载波功率分配方案可以与来自多个光信道的对应的光信道相关联，并且可以被配置为在被配置为在相应的光信道上发送的子载波之间分配信号功率。 该方法可以包括基于反馈信息确定配置为在多个光信道之间分配光功率的光功率分配方案。 该方法可以包括基于多个子载波功率分配方案和光功率分配方案在多个光信道上发送数据。

    Clock recovery and equalizer estimation in a multi-channel receiver
    15.
    发明授权
    Clock recovery and equalizer estimation in a multi-channel receiver 有权
    多通道接收机中的时钟恢复和均衡器估计

    公开(公告)号：US09590799B2

    公开(公告)日：2017-03-07

    申请号：US14664810

    申请日：2015-03-21

    Applicant: Finisar Corporation

    Inventor： Ilya Lyubomirsky ,  The' Linh Nguyen

    IPC: H04B10/69 ,  H04L7/00 ,  H04L25/03 ,  H04L25/14

    CPC classification number: H04L7/0075 ,  H04L7/0004 ,  H04L25/03 ,  H04L25/03006 ,  H04L25/14

    Abstract: A method of performing clock recovery and equalizer coefficient estimation in a multi-channel receiver may include recovering, at a first clock recovery unit, a first clock signal associated with a first channel. The method may include estimating a first set of coefficients for a first equalizer associated with the first channel using the first clock signal. The method may include passing the first clock signal to a second clock recovery unit associated with a second channel. The method may also include recovering, at the second clock recovery unit, a second clock signal associated with the second channel using the first clock signal as a reference clock signal. The method may also include passing the first set of coefficients as initialization coefficients to a second equalizer associated with the second channel. The method may also include estimating a second set of coefficients for the second equalizer using the initialization coefficients.

    Abstract translation: 在多信道接收机中执行时钟恢复和均衡器系数估计的方法可包括在第一时钟恢复单元处恢复与第一信道相关联的第一时钟信号。 该方法可以包括使用第一时钟信号估计与第一信道相关联的第一均衡器的第一组系数。 该方法可以包括将第一时钟信号传递到与第二信道相关联的第二时钟恢复单元。 该方法还可以包括使用第一时钟信号作为参考时钟信号在第二时钟恢复单元处恢复与第二信道相关联的第二时钟信号。 该方法还可以包括将第一组系数作为初始化系数传递到与第二信道相关联的第二均衡器。 该方法还可以包括使用初始化系数来估计第二均衡器的第二组系数。

    Clock Recovery and Equalizer Estimation In a Multi-Channel Receiver
    16.
    发明申请
    Clock Recovery and Equalizer Estimation In a Multi-Channel Receiver 有权
    多通道接收机中的时钟恢复和均衡器估计

    公开(公告)号：US20160277175A1

    公开(公告)日：2016-09-22

    申请号：US14664810

    申请日：2015-03-21

    Applicant: Finisar Corporation

    Inventor： Ilya Lyubomirsky ,  The' Linh Nguyen

    IPC: H04L7/00 ,  H04L25/03

    CPC classification number: H04L7/0075 ,  H04L7/0004 ,  H04L25/03 ,  H04L25/03006 ,  H04L25/14

    Abstract: A method of performing clock recovery and equalizer coefficient estimation in a multi-channel receiver may include recovering, at a first clock recovery unit, a first clock signal associated with a first channel. The method may include estimating a first set of coefficients for a first equalizer associated with the first channel using the first clock signal. The method may include passing the first clock signal to a second clock recovery unit associated with a second channel. The method may also include recovering, at the second clock recovery unit, a second clock signal associated with the second channel using the first clock signal as a reference clock signal. The method may also include passing the first set of coefficients as initialization coefficients to a second equalizer associated with the second channel. The method may also include estimating a second set of coefficients for the second equalizer using the initialization coefficients.

    Abstract translation: 在多信道接收机中执行时钟恢复和均衡器系数估计的方法可包括在第一时钟恢复单元处恢复与第一信道相关联的第一时钟信号。 该方法可以包括使用第一时钟信号估计与第一信道相关联的第一均衡器的第一组系数。 该方法可以包括将第一时钟信号传递到与第二信道相关联的第二时钟恢复单元。 该方法还可以包括使用第一时钟信号作为参考时钟信号在第二时钟恢复单元处恢复与第二信道相关联的第二时钟信号。 该方法还可以包括将第一组系数作为初始化系数传递到与第二信道相关联的第二均衡器。 该方法还可以包括使用初始化系数来估计第二均衡器的第二组系数。

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