Touch panel calibration system
US9766751B2 · kind B2 · utility
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2References
8Claims
0Family size
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Key dates
| Filing date | Jan 26, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A readout system for capacitive touch panel, particularly for single-ended capacity sensing matrixes, capable of internally calibrate and equalize the response of its capacity-to-digital converters (CDC). The readout system includes reference lines for interconnecting together different sub-circuits, and measuring the response of CDC in different circuits on common reference capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.