Automatic calibration of a capacitive touch screen used with a fixed element flat screen display panel
US5283559A · kind A · utility
178Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1992 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04186
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch screen display is automatically calibrated during periods of active use or extended periods of non-use. Calibration contacts are cemented or embedded to the surface of a touch sensitive panel, and electrically connected to a reference during calibration. The reference is either electrical ground or a resistive, capacitive, or inductive load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.