发明授权
US08848833B2 Receiver having controller to set local oscillators so as to render interfering signals filterable and associated methods
有权
接收机具有设置本地振荡器的控制器，以便使干扰信号可滤波和相关联的方法
- 专利标题： Receiver having controller to set local oscillators so as to render interfering signals filterable and associated methods
- 专利标题（中）： 接收机具有设置本地振荡器的控制器，以便使干扰信号可滤波和相关联的方法
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申请号： US13227885申请日： 2011-09-08
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公开(公告)号： US08848833B2公开(公告)日： 2014-09-30
- 发明人: Oleksiy Kravets
- 申请人： Oleksiy Kravets
- 申请人地址： CA Waterloo, Ontario
- 专利权人： BlackBerry Limited
- 当前专利权人： BlackBerry Limited
- 当前专利权人地址： CA Waterloo, Ontario
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号： H04L27/38
- IPC分类号： H04L27/38 ; H04L27/06 ; H04L25/08 ; H04B1/00 ; H04B1/28
摘要：
A receiver includes a first local oscillator (LO), with a pair of in-phase and quadrature (IQ) mixers coupled to the first LO and configured to generate complex IQ signals having an IQ imbalance. The receiver also includes a second LO, with a complex mixer coupled to the second LO and configured to mix the complex IQ signals and generate intermediate frequency (IF) signals based thereon. A controller is coupled between the pair of IQ mixers and the complex mixer and configured to set the first LO and the second LO so that the complex IQ signals and an interfering signal generated due to the IQ imbalance of the complex IQ signals have a same sign and non-overlapping bands at an input of the complex mixer.
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