Method and apparatus for correcting the phase of a clock in a data receiver
    1.
    发明授权
    Method and apparatus for correcting the phase of a clock in a data receiver 失效
    用于校正数据接收机中的时钟相位的方法和装置

    公开(公告)号:US07065160B2

    公开(公告)日:2006-06-20

    申请号:US10042594

    申请日:2002-01-09

    IPC分类号: H03D1/00 H04L27/06

    CPC分类号: H03L7/091 H03L7/089 H04L7/033

    摘要: A method for correcting the phase of a clock in a data receiver which receives a data flow representing different signal levels with logical high and low signal values and signal transitions positioned therebetween, wherein the positions of such signal transitions between respective two adjacent logical signal values are evaluated for correcting the phase of the clock. The position of a signal transition between a first pair of signal values on one level (11) or a second pair of signal values on the other level (00) is weighted stronger in the evaluation then the positions of signal transitions between adjacent single signal values (1,0) of different signal levels.

    摘要翻译: 一种用于校正数据接收机中的时钟相位的方法,该数据接收机接收表示具有逻辑高和低信号值的信号电平的数据流以及位于其间的信号转换,其中相应的两个相邻逻辑信号值之间的这种信号转换的位置是 评估用于校正时钟的相位。 一个电平(11)上的第一对信号值之间的信号转换位置或另一个电平(00)上的第二对信号值在评估中加权得较强,然后在相邻单个信号值之间的信号转换位置 (1,0)不同的信号电平。

    Adjustment for equalization parameters in receivers
    2.
    发明授权
    Adjustment for equalization parameters in receivers 有权
    接收机均衡参数的调整

    公开(公告)号:US07184475B2

    公开(公告)日:2007-02-27

    申请号:US10054551

    申请日:2002-01-22

    摘要: A method of adjusting equalization parameters in a receiver wherein a bit error rate (BER) in a data stream is measured from the number of corrected bits in data blocks which have an information section and an error correction section. A predetermined equalization parameter is changed, and the bit error rate (BER) after change is again measured to find out how to change the predetermined equalization parameter until an optimum is reached.When adjusting the threshold value of the receiver, the history of occurring bits preceding the actual sampled bit is taken into consideration in that the amount and direction of adjustment is derived from a look-up table.

    摘要翻译: 一种在接收机中调整均衡参数的方法,其中根据具有信息部分和纠错部分的数据块中的校正比特数来测量数据流中的误码率(BER)。 改变预定的均衡参数,并且再次测量改变之后的误码率(BER),以找出如何改变预定的均衡参数,直到达到最佳值。 当调整接收机的阈值时,考虑到实际采样位之前出现位的历史,因为从查找表导出调整的量和方向。