发明授权
- 专利标题: High-speed decoder for a multi-pair gigabit transceiver
- 专利标题(中): 用于多对千兆位收发器的高速解码器
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申请号: US12633451申请日: 2009-12-08
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公开(公告)号: US08259787B2公开(公告)日: 2012-09-04
- 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, Kayden, Horstemeyer & Risley, LLP
- 主分类号: H03H7/30
- IPC分类号: H03H7/30
摘要:
A method and a system for providing an input signal from a multiple decision feedback equalizer to a decoder based on a tail value and a subset of coefficient values received from a decision-feedback equalizer. A set of pre-computed values based on the subset of coefficient values is generated. Each of the pre-computed values is combined with the tail value to generate a tentative sample. One of the tentative samples is selected as the input signal to the decoder. In one aspect of the system, tentative samples are saturated and then stored in a set of registers before being outputted to a multiplexer which selects one of the tentative samples as the input signal to the decoder. This operation of storing the tentative samples in the registers before providing the tentative samples to the multiplexer facilitates high-speed operation by breaking up a critical path of computations into substantially balanced first and second portions, the first portion including computations in the decision-feedback equalizer and the multiple decision feedback equalizer, the second portion including computations in the decoder.
公开/授权文献
- US20100086019A1 High-Speed Decoder for a Multi-Pair Gigabit Transceiver 公开/授权日:2010-04-08
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