发明授权
US07773668B1 Adaptive equalization methods and apparatus for programmable logic devices
有权
用于可编程逻辑器件的自适应均衡方法和装置
- 专利标题： Adaptive equalization methods and apparatus for programmable logic devices
- 专利标题（中）： 用于可编程逻辑器件的自适应均衡方法和装置
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申请号： US10762864申请日： 2004-01-21
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公开(公告)号： US07773668B1公开(公告)日： 2010-08-10
- 发明人: Wilson Wong , Sergey Shumarayev , Simardeep Maangat , Rakesh Patel
- 申请人： Wilson Wong , Sergey Shumarayev , Simardeep Maangat , Rakesh Patel
- 申请人地址： US CA San Jose
- 专利权人： Altera Corporation
- 当前专利权人： Altera Corporation
- 当前专利权人地址： US CA San Jose
- 代理机构： Ropes & Gray LLP
- 代理商 Robert R. Jackson; Gall C. Gotfried
- 主分类号： H03H7/30
- IPC分类号： H03H7/30 ; H03H7/40
摘要：
A programmable logic device is provided with adaptive equalization circuitry that is programmable in one or more respects. Examples of the programmable aspects of the equalization circuitry are (1) the number of taps used, (2) whether integer or fractional spaced taps are used, (3) what starting values are used in the computation of coefficient values, (4) whether satisfactory coefficient values are computed only once or on an on-going basis, (5) whether an error signal is generated using a decision directed algorithm or using a training pattern, (6) what training pattern (if any) is used, and/or (7) the location of the sampling point in the bit period of the signal to be equalized.
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