Dynamic filtering device and method thereof
US8386551B2 · kind B2 · utility
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4References
26Claims
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Key dates
| Filing date | Jun 28, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Oct 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A dynamic filtering device includes a variation detector, a coefficient generator and a filter. The cut-off frequency of the filter is dynamically adjusted according to variations of an input signal. A higher signal-to-noise ratio is obtained when a finger moves in slow motion and its response time is reduced when the finger moves in fast motion, therefore improving the response time and the noise immunity of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.