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    Efficient data transmission and training of data processing functions
    3.
    发明申请
    Efficient data transmission and training of data processing functions 失效
    高效的数据传输和数据处理功能的培训

    公开(公告)号：US20070092260A1

    公开(公告)日：2007-04-26

    申请号：US11328199

    申请日：2006-01-10

    申请人： Chandra Bontu ,  Kuang Wu ,  John McNicol ,  Kim Roberts ,  Han Sun

    发明人： Chandra Bontu ,  Kuang Wu ,  John McNicol ,  Kim Roberts ,  Han Sun

    IPC分类号： H04B10/00

    CPC分类号： H04J3/0608 ,  H04J14/06 ,  H04L7/027 ,  H04L7/0278 ,  H04L7/048

    摘要： A method of a conveying data through an optical communications system. An optical signal is received through the optical communication system, the optical signal comprising data symbols and SYNC bursts, each SYNC burst having a predetermined symbol sequence. The received optical signal is oversampled to generate a multi-bit sample stream. The sample stream is partitioned into blocks of contiguous samples, wherein each block of samples partially overlaps at least one other block of samples and encompasses at least one SYNC burst and a plurality of data symbols. Each block of samples is independently processed to detect a value of each data symbol.

    摘要翻译： 一种通过光通信系统传送数据的方法。 通过光通信系统接收光信号，光信号包括数据符号和SYNC脉冲串，每个SYNC脉冲串具有预定的符号序列。 所接收的光信号被过采样以产生多比特采样流。 样本流被划分为连续样本块，其中每个样本块与至少一个其他样本块部分重叠，并且包含至少一个SYNC突发和多个数据符号。 每个样本块被独立地处理以检测每个数据符号的值。

    Methods and systems for reducing waiting-time jitter
    5.
    发明申请
    Methods and systems for reducing waiting-time jitter 失效
    减少等待时间抖动的方法和系统

    公开(公告)号：US20070053384A1

    公开(公告)日：2007-03-08

    申请号：US11218430

    申请日：2005-09-06

    申请人： Kim Roberts ,  Chandra Bontu ,  James Harley

    发明人： Kim Roberts ,  Chandra Bontu ,  James Harley

    IPC分类号： H04J3/06

    CPC分类号： H04J3/076 ,  H04L1/205

    摘要： A method of minimizing jitter in a system for rate adapting a data signal for transport through a synchronous network. A phase difference is measured between a data clock synchronous with the data signal and a local clock of the synchronous network. A timing reference (F) indicative of a frequency difference between the asynchronous data signal and the local clock is measured using the measured phase difference. Calculation of the timing reference includes compensating ambiguity in the measured phase difference.

    摘要翻译： 一种使系统中的抖动最小化的方法，用于速率调整用于通过同步网络传输的数据信号。 在与数据信号同步的数据时钟与同步网络的本地时钟之间测量相位差。 使用测量的相位差来测量表示异步数据信号与本地时钟之间的频率差的定时参考（F）。 定时参考的计算包括补偿测量相位差的模糊度。

    Signal equalizer in a coherent optical receiver
    6.
    发明授权
    Signal equalizer in a coherent optical receiver 有权
    相干光接收机中的信号均衡器

    公开(公告)号：US08005368B2

    公开(公告)日：2011-08-23

    申请号：US11950585

    申请日：2007-12-05

    申请人： Kim Roberts ,  Han Sun

    发明人： Kim Roberts ,  Han Sun

    IPC分类号： H04B10/00

    CPC分类号： H04B10/6971 ,  H04B10/2569 ,  H04B10/2572 ,  H04B10/532 ,  H04B10/677

    摘要： A signal equalizer for compensating impairments of an optical signal received through a link of a high speed optical communications network. At least one set of compensation vectors are computed for compensating at least two distinct types of impairments. A frequency domain processor is coupled to receive respective raw multi-bit in-phase (I) and quadrature (Q) sample streams of each received polarization of the optical signal. The frequency domain processor operates to digitally process the multi-bit sample streams, using the compensation vectors, to generate multi-bit estimates of symbols modulated onto each transmitted polarization of the optical signal. The frequency domain processor exhibits respective different responses to each one of the at least two distinct types of impairments.

    摘要翻译： 一种信号均衡器，用于补偿通过高速光通信网络的链路接收的光信号的损伤。 计算至少一组补偿向量以补偿至少两种不同类型的损伤。 频域处理器被耦合以接收光信号的每个接收极化的相应的原始多位同相（I）和正交（Q）采样流。 频域处理器操作以使用补偿矢量对多位采样流进行数字处理，以产生调制到光信号的每个透射偏振上的符号的多位估计。 所述频域处理器对所述至少两种不同类型的损伤中的每一种表现出相应的不同响应。

    Optical communications system having chromatic dispersion and polarization mode dispersion compensation
    8.
    发明授权
    Optical communications system having chromatic dispersion and polarization mode dispersion compensation 有权
    具有色散和偏振模色散补偿的光通信系统

    公开(公告)号：US09520950B2

    公开(公告)日：2016-12-13

    申请号：US12330691

    申请日：2008-12-09

    申请人： James Harley ,  Kim Roberts ,  Chuandong Li

    发明人： James Harley ,  Kim Roberts ,  Chuandong Li

    IPC分类号： H04B10/00 ,  H04B10/532 ,  H04B10/2513 ,  H04B10/69

    CPC分类号： H04B10/532 ,  H04B10/25137 ,  H04B10/6972 ,  H04B2210/252 ,  H04B2210/254

    摘要： Described are an optical communications system and a method that allow for compensation of chromatic dispersion and polarization mode dispersion imparted to a communications signal propagating through an optical link. The system is based on a cost-effective optical transport architecture that accommodates baud rates exceeding 15 Gbaud and eliminates the need for costly optical dispersion compensators. Compensation for polarization mode dispersion is performed at the receiver using nonlinear processing. Advantageously, direct detection modulation using inexpensive electro-optic system components can be used in place of more costly and complex coherent and differential modulation formats. Digital filtering can be performed at the transmitter and the input signal can be inverted based on the nonlinearity of the transmitter electro-optic components. Consequently, the bandwidth and linearity requirements for the transmitter electro-optic components are relaxed, and cost reductions are realized.

    摘要翻译： 描述了允许补偿通过光链路传播的通信信号的色散和偏振模色散的光通信系统和方法。 该系统基于具有成本效益的光学传输架构，其适应波特率超过15Gbaud，并且不需要昂贵的光学色散补偿器。 使用非线性处理在接收机处执行偏振模色散的补偿。 有利地，可以使用廉价的电光系统组件的直接检测调制来代替更昂贵和复杂的相干和差分调制格式。 可以在发射机处执行数字滤波，并且可以基于发射机电光部件的非线性来反转输入信号。 因此，放大了发射机电光元件的带宽和线性要求，并实现成本降低。

    Optimization of a communications system based on identification of an optical member
    9.
    发明申请
    Optimization of a communications system based on identification of an optical member 审中-公开
    基于光学构件的识别的通信系统的优化

    公开(公告)号：US20050074244A1

    公开(公告)日：2005-04-07

    申请号：US10625696

    申请日：2003-07-24

    申请人： Kim Roberts ,  Maurice O'Sullivan ,  Paul Warren ,  Les Chan

    发明人： Kim Roberts ,  Maurice O'Sullivan ,  Paul Warren ,  Les Chan

    IPC分类号： H04B10/02 ,  H04B10/08 ,  H04B10/00

    CPC分类号： H04B10/0793

    摘要： An optical communications system is adapted for connection to an optical fiber link of an optical communications network. The system obtains a fiber identifier respecting the optical fiber link; a respective optimum setting of one or more parameters of the optical communications system; and adjusts a respective value of each parameter in accordance with the respective optimum setting. The fiber identifier can be obtained from a value of at least one fiber transmission property of the optical fiber link. The fiber transmission property value is used to search a look-up table of class definitions, each class definition including a respective class identifier and at least one corresponding characteristic transmission property value. A class identifier is selected as the fiber identifier from the class definition for which each characteristic transmission property value most closely matches a corresponding fiber transmission property value. Each class definition may also include an optimum setting for each parameter.

    摘要翻译： 光通信系统适于连接到光通信网络的光纤链路。 该系统获得关于光纤链路的光纤标识符; 光通信系统的一个或多个参数的相应最佳设置; 并根据各自的最佳设定调整各参数的相应值。 可以从光纤链路的至少一个光纤传输特性的值获得光纤标识符。 光纤传输属性值用于搜索类定义的查找表，每个类定义包括相应的类标识符和至少一个对应的特征传输属性值。 从类别定义中选择类别标识符作为每个特征传输特性值与其对应的光纤传输属性值最匹配的类定义。 每个类定义也可以包括每个参数的最佳设置。