Touch sensitive device, system and method thereof
US9715309B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | May 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensitive detecting method, applicable to a touch panel or screen, comprises: setting at least one dummy pad to a dummy high voltage; after setting the at least one dummy pad to the dummy high voltage, setting a sensing electrode nearby the at least one dummy pad to floating; after the sensing electrode is set to floating, setting the at least one dummy pad to a ground voltage and a driving electrode to a driving voltage; measuring the voltage of the sensing electrode; setting the sensing electrode to the ground voltage and stopping measurement; and determining whether an externally conducted object is approximating or touching the touch panel or screen nearby the sensing electrode by comparing a difference between a threshold voltage and the measured voltage of the sensing electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.