Analog delay circuit
    1.
    发明授权
    Analog delay circuit 有权
    模拟延迟电路

    公开(公告)号:US07352826B2

    公开(公告)日:2008-04-01

    申请号:US10741001

    申请日:2003-12-19

    IPC分类号: H03K9/00

    CPC分类号: H03H11/26 H03H15/00

    摘要: An analog delay circuit to impart a group delay to an analog input signal is described. The analog delay circuit may comprise a capacitor to impart at least a portion of the group delay to the analog output signal and a buffer circuit coupled between the capacitor and an input stage to substantially remove at least a portion of a capacitive load at the input stage.

    摘要翻译: 描述了对模拟输入信号赋予组延迟的模拟延迟电路。 模拟延迟电路可以包括电容器以将组延迟的至少一部分赋予模拟输出信号;以及缓冲电路,耦合在电容器和输入级之间,以在输入级基本上移除电容性负载的至少一部分 。

    Filter with signal taps temporally spaced at fractional symbol intervals
    2.
    发明授权
    Filter with signal taps temporally spaced at fractional symbol intervals 有权
    用分数符号间隔时间间隔的信号抽头滤波

    公开(公告)号:US07301998B2

    公开(公告)日:2007-11-27

    申请号:US10742119

    申请日:2003-12-19

    IPC分类号: H03K5/159

    摘要: Described are methods and devices for processing a signal transmitting symbols which are temporally spaced on symbol intervals. The signal may be tapped at fractional symbol intervals to provide a plurality of signal taps at the fractional symbol intervals. Each of a plurality of coefficients may be applied to a corresponding one of the signal taps to generate an equalized signal. For at least one of the signal taps, the corresponding coefficient may be updated no more frequently than once per symbol interval.

    摘要翻译: 描述了用于处理在符号间隔上在时间上间隔开的符号的信号的方法和装置。 信号可以以分数符号间隔被抽头以在分数符号间隔处提供多个信号抽头。 多个系数中的每一个可以被施加到相应的一个信号抽头以产生均衡的信号。 对于至少一个信号抽头,相应的系数可以不再比每个符号间隔更频繁地更新。

    Feedback filter
    3.
    发明授权
    Feedback filter 失效
    反馈过滤器

    公开(公告)号:US07561619B2

    公开(公告)日:2009-07-14

    申请号:US10741029

    申请日:2003-12-19

    IPC分类号: H03H7/30

    摘要: Disclosed are a system, method and device for generating an equalized signal from an input signal. Symbols in the equalized signal may be detected on each of a sequence of symbol intervals to recover a symbol value in the symbol interval. A feedback coefficient may be applied to a symbol value recovered in a previous symbol interval to generate the equalized signal in a current symbol interval. The feedback coefficient may be generated based, at least in part, on an estimated error associated with the equalized signal. The estimated error associated with the equalized output signal from among a plurality of candidate estimated error values.

    摘要翻译: 公开了一种用于从输入信号产生均衡信号的系统,方法和装置。 可以在符号间隔的每一个上检测均衡信号中的符号,以恢复符号间隔中的符号值。 可以将反馈系数应用于在先前符号间隔中恢复的符号值,以在当前符号间隔中生成均衡信号。 可以至少部分地基于与均衡信号相关联的估计误差来生成反馈系数。 与多个候选估计误差值中的均衡输出信号相关联的估计误差。