公开(公告)号：EP1938537B1

公开(公告)日：2009-12-09

申请号：EP06809284.0

申请日：2006-09-12

申请人： NXP B.V.

发明人： GERFERS, Friedel ,  DEN BESTEN, Gerrit, W. ,  CONDER, Jim, E. ,  PETKOV, Pavel ,  KOELLMANN, Andreas

IPC分类号： H04L25/03

CPC分类号： H04L25/03885 ,  H04L25/0305 ,  H04L2025/03802 ,  H04L2027/0038

公开(公告)号：EP1938537A2

公开(公告)日：2008-07-02

申请号：EP06809284.0

申请日：2006-09-12

申请人： NXP B.V.

发明人： GERFERS, Friedel ,  DEN BESTEN, Gerrit, W. ,  CONDER, Jim, E. ,  PETKOV, Pavel ,  KOELLMANN, Andreas

IPC分类号： H04L25/03

CPC分类号： H04L25/03885 ,  H04L25/0305 ,  H04L2025/03802 ,  H04L2027/0038

摘要： An adaptive equalizer comprises an adjustable equalizer circuit (10) that allows to enhance the frequency dependence of contents of the transmitted signals which suffer from losses in the connected transmission channel. A blind equalization tuning procedure is proposed that operates without knowledge about the characteristic of transmission channel. Phase positions of transitions in the equalized signal are detected by a transition phase detector (44). A digital post-processing circuit (14) evaluates a measure for spread of the detected phase positions of transitions accumulated over a plurality of the symbol periods. The digital post processing circuit controls the adjustable equalizer, setting the adjustable equalizer to a setting wherein the detected spread is minimized.