Invention Grant
- Patent Title: Circuits for and methods of robust adaptation of a continuous time linear equalizer circuit
- Patent Title (中): 电路和连续时间线性均衡电路的鲁棒适应方法
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Application No.: US14885666Application Date: 2015-10-16
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Publication No.: US09461851B1Publication Date: 2016-10-04
- Inventor: Yu Liao , Geoffrey Zhang
- Applicant: Xilinx, Inc.
- Applicant Address: US CA San Jose
- Assignee: XILINX, INC.
- Current Assignee: XILINX, INC.
- Current Assignee Address: US CA San Jose
- Agent John J. King
- Main IPC: H03K5/159
- IPC: H03K5/159 ; H04L27/01 ; H04L25/03

Abstract:
A circuit for enabling an adaptation of an equalization circuit is described. The circuit comprises a continuous time linear equalizer configured to receive an input data signal and generate an equalized input data signal; a decision circuit configured to receive the equalized input data signal, wherein the decision circuit generates an estimate of the input data signal; channel estimation circuit configured to receive the estimate of the input data signal and an error signal to generate an impulse response estimate of an equivalent channel; a frequency response computation circuit configured to receive the impulse response estimate of the equivalent channel and generate a channel frequency response; and a continuous time linear equalizer control circuit configured to receive the channel frequency response and to generate a CTLE adaptation signal for controlling the continuous time linear equalizer.
Information query