Touch device for determining real coordinates of multiple touch points and method thereof
US9069420B2 · kind B2 · utility
3Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Sep 18, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04104
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch device for determining real coordinates of multiple touch points is provided. The touch device for determining real coordinates of the multiple touch points comprises a plurality of electrodes and a scanning circuit having a Normal Scanning Circuit and a Split Scanning Circuit connected to said electrodes for eliminating ghost coordinates of the multiple touch points from raw coordinates to output the real coordinates of the multiple touch points. The method of determining real coordinates of multiple touch points on the touch device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.