公开(公告)号：US6130920A

公开(公告)日：2000-10-10

申请号：US76992

申请日：1998-05-13

申请人： Clinton C. Powell, II ,  Chun-Ye Chang ,  David L. Brown ,  David F. Brown ,  Robert Karl Schweickert

发明人： Clinton C. Powell, II ,  Chun-Ye Chang ,  David L. Brown ,  David F. Brown ,  Robert Karl Schweickert

IPC分类号： H03M13/39 ,  H03M13/23 ,  H04L7/00 ,  H04L7/02 ,  H04L7/04 ,  H04L25/38 ,  H04L27/06 ,  H04L27/14

CPC分类号： H04L7/0062 ,  H04L7/042

摘要： A circuit (12) for symbol decision directed feedback synchronization includes a current synchonization clock (45) that provides an initial sampling point and selects a detector corresponding to a current symbol decision. The circuit further includes a plurality of detectors (31, 32, 33, and 34) including the detector corresponding to the current symbol decision, a buffer (736) for storing the output of the detector corresponding to the current symbol decision and a processor (300) for seeking within a predetermined window about the initial sampling point for an optimum phase value to provide an adjustment signal which is used by the processor to adjust a subsequent symbol's sychronization clock to provide an optimal sampling point.

摘要翻译： 用于符号决定定向反馈同步的电路（12）包括提供初始采样点并选择对应于当前符号判定的检测器的当前同步时钟（45）。 电路还包括多个包括与当前符号决定相对应的检测器的检测器（31,32,33和34），用于存储与当前符号判定相对应的检测器的输出的缓冲器（736） 300），用于在关于初始采样点的预定窗口内寻找最佳相位值，以提供由处理器用于调整后续符号的同步时钟以提供最佳采样点的调整信号。