发明授权
- 专利标题: Adaptive signal latency control for communications systems signals
- 专利标题(中): 通信系统信号的自适应信号延迟控制
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申请号: US10789702申请日: 2004-02-27
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公开(公告)号: US07379495B2公开(公告)日: 2008-05-27
- 发明人: Qian Yu , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit G. Shanbhag , Edem Ibragimov , Fabian Giroud
- 申请人: Qian Yu , Venugopal Balasubramonian , Jishnu Bhattacharjee , Debanjan Mukherjee , Abhijit Phanse , Abhijit G. Shanbhag , Edem Ibragimov , Fabian Giroud
- 申请人地址: US CA Sunnyvale
- 专利权人: Scintera Networks Inc.
- 当前专利权人: Scintera Networks Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Vedder Price P.C.
- 主分类号: H04B3/46
- IPC分类号: H04B3/46
摘要:
An apparatus and method for adaptively introducing a compensating signal latency related to a signal latency of a data symbol decision circuit. Adaptive timing control circuitry, including an interpolating mixer implemented as a tapped delay line with correlated tap coefficients, introduces a latency adaptively and substantially matching the latency of the data decision circuit for use within an adaptive equalizer, thereby minimizing the mean-squared error of such decision circuit. This adaptive latency is used in generating the feedback error signal which, in turn, can be used by the feedforward equalizer for dynamically adjusting its adaptive filter tap coefficients.
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