Digitally controlled analog RF filtering in subsampling communication receiver architecture
US7079826B2 · kind B2 · utility
9Cited by
5References
38Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.