发明申请
- 专利标题: Methods and Apparatus for Detecting and Decoding Adaptive Equalization Training Frames
- 专利标题(中): 用于检测和解码自适应均衡训练帧的方法和装置
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申请号: US11967463申请日: 2007-12-31
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公开(公告)号: US20090168862A1公开(公告)日: 2009-07-02
- 发明人: Yasser Ahmed , Xingdong Dai , Mohammad S. Mobin , Lane A. Smith
- 申请人: Yasser Ahmed , Xingdong Dai , Mohammad S. Mobin , Lane A. Smith
- 主分类号: H04L27/01
- IPC分类号: H04L27/01
摘要:
Methods and apparatus are provided for detecting and decoding adaptive equalization training frames (having a frame marker comprised of a string of binary ones and binary zeroes). Training frames are detected by shifting the received data; inserting at least one binary value at one end of the shifted received data to generate a modified version of the received data; applying a logic function to the received data and the modified version of the received data that identifies when corresponding bit positions have different values; and detecting the frame marker when an output of the logic function has a first binary value in an approximate middle of a string of a second binary value. The training frames are decoded using a distance between the approximate center of the frame maker and a predefined binary value in an output of the logic function.