Computer input system utilizing a camera to sense point source
US6538645B1 · kind B1 · utility
15Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | May 3, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer input system utilizing a camera to sense a point source includes a movable light emitting device, which is operated by the user to move and emit at least two lights of different colors. The computer input system further has a camera for capturing the light emitted by the movable light emitting device and transforming a captured light trace produced by the movable light emitting device to XY coordinate data, so as to perform a pointing input operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.