发明授权
US07272374B2 Dynamic selection of local oscillator signal injection for image rejection in integrated receivers
有权
动态选择本地振荡器信号注入用于集成接收机中的图像抑制
- 专利标题： Dynamic selection of local oscillator signal injection for image rejection in integrated receivers
- 专利标题（中）： 动态选择本地振荡器信号注入用于集成接收机中的图像抑制
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申请号： US10881579申请日： 2004-06-30
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公开(公告)号： US07272374B2公开(公告)日： 2007-09-18
- 发明人: G. Tyson Tuttle , Dan B. Kasha , Donald A. Kerth
- 申请人： G. Tyson Tuttle , Dan B. Kasha , Donald A. Kerth
- 申请人地址： US TX Austin
- 专利权人： Silicon Laboratories Inc.
- 当前专利权人： Silicon Laboratories Inc.
- 当前专利权人地址： US TX Austin
- 代理机构： O'Keefe, Egan, Peterman & Ender, LLP
- 主分类号： H04B1/28
- IPC分类号： H04B1/28
摘要：
A system and method are disclosed for dynamically selecting high-side injection or low-side injection of local oscillator mixing signals based upon an assessment of signal power within the input signal spectrum that could cause unwanted images in the processed signal. This image rejection assessment provides an advantageous basis upon which to make dynamic high-side versus low-side injection determinations.
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