发明授权
- 专利标题： Triple conversion RF tuner with synchronous local oscillators
- 专利标题（中）： 具有同步本地振荡器的三重转换RF调谐器
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申请号： US09880291申请日： 2001-06-13
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公开(公告)号： US07088979B1公开(公告)日： 2006-08-08
- 发明人: Ravindra U. Shenoy , Samuel W. Sheng , Lapoe E. Lynn
- 申请人： Ravindra U. Shenoy , Samuel W. Sheng , Lapoe E. Lynn
- 申请人地址： US CA Milpitas
- 专利权人： LSI Logic Corporation
- 当前专利权人： LSI Logic Corporation
- 当前专利权人地址： US CA Milpitas
- 代理商 Christopher P. Maiorana, P.C.
- 主分类号： H04B1/26
- IPC分类号： H04B1/26
摘要：
An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate an upconverted signal in response to an input signal and a first oscillation signal. The second circuit may be configured to generate a downconverted signal in response to the upconverted signal and as second oscillation signal. The third circuit may be configured to generate an output signal in response to the downconverted signal and a third oscillation signal derived from the second oscillation signal. The upconverting and downconverting may filter undesired channels from the output signal.
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