Sensing circuit for capacitive touch panel
US8305360B2 · kind B2 · utility
19Cited by
0References
18Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 4, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04182
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sensing circuit for a capacitive touch panel is disclosed. By adding a path for a noise to pass through, the noise is differentially processed through two paths which have the same electrical conditions with each other. The noise is then decreased significantly, and a sensing signal can be detected correctly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.