Invention Grant
US09461851B1 Circuits for and methods of robust adaptation of a continuous time linear equalizer circuit 有权
电路和连续时间线性均衡电路的鲁棒适应方法

  • 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
  • Application No.: US14885666
    Application Date: 2015-10-16
  • Publication No.: US09461851B1
    Publication Date: 2016-10-04
  • Inventor: Yu LiaoGeoffrey 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
Circuits for and methods of robust adaptation of a continuous time linear equalizer circuit
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.
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