Invention Application
US20140376651A1 Performing Image Rejection On Bandpass Signals 有权
在带通信号上执行图像抑制

  • Patent Title: Performing Image Rejection On Bandpass Signals
  • Patent Title (中): 在带通信号上执行图像抑制
  • Application No.: US13921375
    Application Date: 2013-06-19
  • Publication No.: US20140376651A1
    Publication Date: 2014-12-25
  • Inventor: John KhouryYan Zhou
  • Applicant: Silicon Laboratories Inc.
  • Main IPC: H03D1/04
  • IPC: H03D1/04
Performing Image Rejection On Bandpass Signals
Abstract:
An image rejection (IR) circuit is configured to receive a complex signal from a radio frequency (RF) mixer, where the complex signal includes an in-phase signal portion and a quadrature signal portion. This IR circuit may include: an in-phase path to remove first mismatch information from the in-phase signal portion and associated with at least one in-phase multi-tap filter; a quadrature path to remove second mismatch information from the quadrature signal portion and associated with at least one quadrature multi-tap filter; and a correlation unit to independently update each of the multiple taps of the in-phase multi-tap filter and the quadrature multi-tap filter according to a priority scheme.
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