System and method for DC correction in wireless receivers
US7391256B2 · kind B2 · utility
0Cited by
3References
23Claims
0Family size
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Key dates
| Filing date | Sep 18, 2006 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/191
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates generally to systems and methods for direct current (DC) correction in wireless devices. In one example, a method includes setting a cutoff frequency of a filter at a first frequency, where a signal entering the filter is attenuated based on the cutoff frequency. If a qualified change is detected in a DC component of the signal, the cutoff frequency is set at a second frequency that attenuates more of the signal than the first frequency for a defined time period. The cutoff frequency may then be set to the first frequency after the defined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.