发明授权
US08320443B2 System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system
有权
多对收发器系统中的高速解码和ISI补偿的系统和方法
- 专利标题： System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system
- 专利标题（中）： 多对收发器系统中的高速解码和ISI补偿的系统和方法
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申请号： US12768817申请日： 2010-04-28
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公开(公告)号： US08320443B2公开(公告)日： 2012-11-27
- 发明人: Oscar E. Agazzi , David Kruse , Arthur Abnous , Mehdi Hatamian
- 申请人： Oscar E. Agazzi , David Kruse , Arthur Abnous , Mehdi Hatamian
- 申请人地址： US CA Irvine
- 专利权人： Broadcom Corporation
- 当前专利权人： Broadcom Corporation
- 当前专利权人地址： US CA Irvine
- 代理机构： Thomas | Horstemeyer, LLP
- 主分类号： H03H7/40
- IPC分类号： H03H7/40
摘要：
A method and a system for providing ISI compensation to an input signal in a bifurcated manner. ISI compensation is provided in two stages, a first stage compensates ISI components induced by characteristics of a transmitter's partial response pulse shaping filter, a second stage compensates ISI components induced by characteristics of a multi-pair transmission channel. First stage ISI compensation is performed in an inverse response filter having a characteristic feedback gain factor K, during system start-up. Second stage ISI compensation is performed by a single DFE in combination with a MDFE operating on tentative decisions output from a Viterbi decoder. As the DFE of the second stage reaches convergence, the feedback gain factor K of the first stage is ramped to zero.
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