Touch recognition method and system for a capacitive touch apparatus
US9367190B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Feb 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method and system for touch signal recognition adapted to be used in a capacitive touch panel or apparatus. In order to achieve an objection of enhancement of a touch signal for recognition and getting rid of noise impact simultaneously, the present invention discloses a touch recognition method that actually includes two different measurement cycles to acquire two different sample voltage values. Consequently, noise impact can be removed by calculation of a sample voltage value difference between two different sample voltage values, at the same time, and the sample voltage value difference can provide a double magnitude as disclosed in the prior art to enhance accuracy for recognizing a user touch input while preventing from influence of noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.