Gain correction for fast panel scanning
US9069399B2 · kind B2 · utility
0Cited by
3References
18Claims
0Family size
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Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Apr 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method calculates a correction factor for one or more of capacitance sensors and generates a current from a mutual capacitance of one of the capacitance sensors. The method applies the correction factor to the generated current to generate a corrected current and converts the corrected current to a digital value. The method determines a position of one or more conductive objects in proximity to the one or more capacitance sensors based on the digital value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.