Techniques for creating a virtual touchscreen
US8446389B2 · kind B2 · utility
6Cited by
18References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for creating a virtual touchscreen includes capturing, with a first infrared camera, a first reflection from an object that is at a known position adjacent a surface associated with a device. A second reflection from the object (at the known position) is captured with a second infrared camera. The first and second reflections are correlated with the known position to provide a two-dimensional position for the object that is calibrated with respect to the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.