发明授权
- 专利标题： Programmable receiver equalization circuitry and methods
- 专利标题（中）： 可编程接收机均衡电路和方法
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申请号： US11182658申请日： 2005-07-14
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公开(公告)号： US07697600B2公开(公告)日： 2010-04-13
- 发明人: Simardeep Maangat , Sergey Shumarayev , Wilson Wong , ThuNgoc Tran
- 申请人： Simardeep Maangat , Sergey Shumarayev , Wilson Wong , ThuNgoc Tran
- 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
- 主分类号： H03H7/30
- IPC分类号： H03H7/30
摘要：
Data signals transmitted over transmission media suffer from attenuation caused by the transmission media. Equalization circuitry may be provided to compensate for attenuation caused by the transmission media. Equalization circuitry may include multiple stages arranged in series to allow the frequency responses of the stages to aggregate together. Each stage may be programmable to insert a zero, which causes the frequency response of the stage to increase in magnitude by 20 dB/decade. The frequency location of the zero may also be programmable to allow each stage to contribute a certain amount of gain for a specific frequency. Each stage may also be programmable to determine the location of poles for reduction of high frequency noise and cross-talk cancellation.
公开/授权文献
- US20070014344A1 Programmable receiver equalization circuitry and methods 公开/授权日：2007-01-18