High integrity touch screen system
US8896546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A high integrity touch screen system includes, but is not limited to, a display screen, a first sensor array to detect a touch on the display screen and to generate a first set of touch position coordinates, a first processor connected to the first sensor array and configured to receive the first set of touch position coordinates, a second sensor array to detect the touch on the display screen and to generate a second set of touch position coordinates and a second processor connected to the second sensor array and configured to receive the second set of touch position coordinates. The first processor and the second processor cooperate to compare the first set of touch position coordinates with the second set of touch position coordinates and to invalidate the touch when the first set of touch position coordinates and the second set of touch position coordinates do not substantially coincide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.