Invention Grant
US08111792B2 Apparatus and methods for digital adaptive equalizer in serial receiver
有权
串行接收机中数字自适应均衡器的装置和方法
- Patent Title: Apparatus and methods for digital adaptive equalizer in serial receiver
- Patent Title (中): 串行接收机中数字自适应均衡器的装置和方法
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Application No.: US12633533Application Date: 2009-12-08
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Publication No.: US08111792B2Publication Date: 2012-02-07
- Inventor: Chiung-Ting Ou
- Applicant: Chiung-Ting Ou
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
Circuits and methods for performing adaptive frequency compensation in a serial receiver coupled to a differential signal channel link are disclosed. In an exemplary embodiment, a receiver for signals over a serial channel link is provided including a linear equalization function. A data recovery circuit is coupled to the output of the receiver and receives frequency compensated analog signals. A digital feedback control circuit observes the digital output. A data accumulator circuit receives the output of a comparator and a signal indicating the data pattern observed in the digital data output. A digital filter receives the accumulator data and outputs control signals for modifying the linear equalization in a feedback loop. The receiver and linear equalization function are automatically and adaptively modified to provide frequency compensation. Methods for adaptively modifying the frequency response of a receiver and linear equalizer using digital feedback are disclosed.
Public/Granted literature
- US20100246657A1 Apparatus and Methods for Digital Adaptive Equalizer in Serial Receiver Public/Granted day:2010-09-30
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