Invention Grant
US08369470B2 Methods and apparatus for adapting one or more equalization parameters by reducing group delay spread
有权
通过减少组延迟扩展来适应一个或多个均衡参数的方法和装置
- Patent Title: Methods and apparatus for adapting one or more equalization parameters by reducing group delay spread
- Patent Title (中): 通过减少组延迟扩展来适应一个或多个均衡参数的方法和装置
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Application No.: US12323155Application Date: 2008-11-25
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Publication No.: US08369470B2Publication Date: 2013-02-05
- Inventor: Mohammad S. Mobin , Kenneth W. Paist , Lane A. Smith
- Applicant: Mohammad S. Mobin , Kenneth W. Paist , Lane A. Smith
- Applicant Address: US PA Allentown
- Assignee: Agere Systems, LLC
- Current Assignee: Agere Systems, LLC
- Current Assignee Address: US PA Allentown
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: H03D1/06
- IPC: H03D1/06 ; H03K5/01

Abstract:
Methods and apparatus are provided for adapting one or more equalization parameters in a communications system by reducing group delay spread. According to one aspect of the invention, one or more equalization parameters in a communications system are adapted by detecting one or more predefined run length patterns in a received signal, such as a plurality of consecutive same-valued bits; evaluating a transition latch value for each of the detected predefined run length patterns, wherein the transition latch value provides an indication of whether the received signal is under-equalized or over-equalized; and adjusting the one or more equalization parameters of the communications system based on the evaluation of the transition latch value. The adjusted equalization parameters may be employed to equalize intersymbol interference. A data eye monitor can be employed to evaluate the transition latch value.
Public/Granted literature
- US20100128828A1 METHODS AND APPARATUS FOR ADAPTING ONE OR MORE EQUALIZATION PARAMETERS BY REDUCING GROUP DELAY SPREAD Public/Granted day:2010-05-27
Information query
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