发明名称 |
Digitally controlled analog RF filtering in subsampling communication receiver architecture |
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.
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申请公布号 |
US2003050027(A1) |
申请公布日期 |
2003.03.13 |
申请号 |
US20020099831 |
申请日期 |
2002.03.15 |
申请人 |
MUHAMMAD KHURRAM;LEIPOLD DIRK;CHEN FENG;MAGGIO KENNETH J. |
发明人 |
MUHAMMAD KHURRAM;LEIPOLD DIRK;CHEN FENG;MAGGIO KENNETH J. |
分类号 |
H03H15/00;H03H19/00;H04B1/28;H04L27/24;(IPC1-7):H04B1/06;H04B7/00 |
主分类号 |
H03H15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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