Methods and systems for efficient filtering of digital signals
US7177889B2 · kind B2 · utility
3Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Apr 8, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method in a signal processor for filtering samples in a digital signal is provided. An approximate filtered sample is generated as a function of less than four samples of the digital signal. A correction is generated as a function of the less than four samples, and a filtered sample is generated by modifying the approximate filtered sample with the correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.