Method and apparatus for reducing coupled noise influence in touch screen controllers
US9229577B2 · kind B2 · utility
4Cited by
0References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Feb 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses and methods to reduce the influence of a noise signal on touch screen controllers are described. One apparatus includes a detector to determine a presence of a noise signal from a display coupled to a capacitive touch screen. The apparatus also includes a synchronization circuit to synchronize signals produced by a touch screen controller with the noise signal to reduce the influence of the noise signal on capacitance measurements by the touch screen controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.