发明授权
US07522899B1 Image rejection scheme for receivers 有权
接收机的图像抑制方案

  • 专利标题: Image rejection scheme for receivers
  • 专利标题(中): 接收机的图像抑制方案
  • 申请号: US10891672
    申请日: 2004-07-15
  • 公开(公告)号: US07522899B1
    公开(公告)日: 2009-04-21
  • 发明人: Runsheng He
  • 申请人: Runsheng He
  • 申请人地址: BM Hamilton
  • 专利权人: Marvell International Ltd.
  • 当前专利权人: Marvell International Ltd.
  • 当前专利权人地址: BM Hamilton
  • 主分类号: H04B1/10
  • IPC分类号: H04B1/10
Image rejection scheme for receivers
摘要:
An RF receiver image rejection scheme. The RF is received and mixed in two quadrature channels allowing separation of the undesired image portion within the RF signal from the desired portion. The two channels can be summed to allow the image portions to cancel out and form a signal which is predominantly based on the desired portion. Another sum of the two channels can also be made to provide a signal which is primarily based on the image portion. Since there are some components of the image portion even in the compensated desired signal, that signal indicative of the image portion is used to compensate for that undesired portion.
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