发明申请
US20100177419A1 AGC Loop with Weighted Zero Forcing and LMS Error Sources and Methods for Using Such
有权
具有加权零强制和LMS误差源的AGC环路及其使用方法
- 专利标题： AGC Loop with Weighted Zero Forcing and LMS Error Sources and Methods for Using Such
- 专利标题（中）： 具有加权零强制和LMS误差源的AGC环路及其使用方法
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申请号： US12352540申请日： 2009-01-12
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公开(公告)号： US20100177419A1公开(公告)日： 2010-07-15
- 发明人: Jingfeng Liu , Hongwei Song , Jongseung Park , George Mathew , Yuan Xing Lee
- 申请人： Jingfeng Liu , Hongwei Song , Jongseung Park , George Mathew , Yuan Xing Lee
- 专利权人： LSI Corporation
- 当前专利权人： LSI Corporation
- 主分类号： G11B5/00
- IPC分类号： G11B5/00 ; H03G3/30
摘要：
Various embodiments of the present invention provide systems and methods for gain control. For example, some embodiments of the present invention provide variable gain control circuits. Such circuits include a zero forcing loop generating a zero forcing feedback and a least mean square loop generating a least mean square feedback. An error quantization circuit generates a hybrid feedback based upon a threshold condition using the zero forcing feedback and the least mean square feedback. A variable gain amplifier is at least in part controlled by a derivative of the hybrid feedback.
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