Invention Grant
- Patent Title: Programmable receiver equalization circuitry and methods
- Patent Title (中): 可编程接收机均衡电路和方法
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Application No.: US11182658Application Date: 2005-07-14
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Publication No.: US07697600B2Publication Date: 2010-04-13
- Inventor: Simardeep Maangat , Sergey Shumarayev , Wilson Wong , ThuNgoc Tran
- Applicant: Simardeep Maangat , Sergey Shumarayev , Wilson Wong , ThuNgoc Tran
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agency: Ropes & Gray LLP
- Main IPC: H03H7/30
- IPC: H03H7/30

Abstract:
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.
Public/Granted literature
- US20070014344A1 Programmable receiver equalization circuitry and methods Public/Granted day:2007-01-18
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