Invention Grant
- Patent Title: Adaptive equalizer with tap coefficient averaging
- Patent Title (中): 具有抽头系数平均的自适应均衡器
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Application No.: US11710212Application Date: 2007-02-23
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Publication No.: US07813422B2Publication Date: 2010-10-12
- Inventor: Matthew E. Cooke , Adriel P. Kind , Long Ung
- Applicant: Matthew E. Cooke , Adriel P. Kind , Long Ung
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Agency: Mendelsohn, Drucker & Associates, P.C.
- Agent Craig M. Brown; Steve Mendelsohn
- Main IPC: H03H7/30
- IPC: H03H7/30 ; H03H7/40 ; H03K5/159

Abstract:
In one embodiment, a receiver has an equalizer, a tap-averaging block, a delay buffer, and a filter. The equalizer receives an input signal from upstream processing and generates sets of filter coefficients. Each set of filter coefficients is adaptively generated by 1) filtering the received signal to generate an equalized signal, 2) calculating an error of the equalized signal, and 3) generating a new set of coefficients based on the error of the equalized signal. The sets of filter coefficients are output to the tap-averaging block, which averages groups of the sets of filter coefficients to generate sets of averaged filter coefficients, where each averaged set is output to the filter. The filter receives a time-delayed version of the input signal from the delay buffer and applies the current set of averaged filter coefficients to the time-delayed signal. The filtered signal is then output to downstream processing.
Public/Granted literature
- US20080205503A1 Adaptive equalizer with tap coefficient averaging Public/Granted day:2008-08-28
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