发明授权
US07079826B2 Digitally controlled analog RF filtering in subsampling communication receiver architecture
有权
二次采样通信接收机架构中的数字控制模拟RF滤波
- 专利标题： Digitally controlled analog RF filtering in subsampling communication receiver architecture
- 专利标题（中）： 二次采样通信接收机架构中的数字控制模拟RF滤波
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申请号： US10099831申请日： 2002-03-15
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公开(公告)号： US07079826B2公开(公告)日： 2006-07-18
- 发明人: Khurram Muhammad , Dirk L. Leipold , Feng Chen , Kenneth J. Maggio
- 申请人： Khurram Muhammad , Dirk L. Leipold , Feng Chen , Kenneth J. Maggio
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- 主分类号： H04B1/06
- IPC分类号： H04B1/06
摘要：
A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding half-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform, and are also manipulated to implement a filtering operation such that the second voltage waveform represents a downconverted, filtered version of the first voltage waveform.