Pointing device utilizing a photodetector array
US5907152A · kind A · utility
145Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0383
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical detection system particularly suited to us as a pointing device uses a photodetector array capable of generating a quasi-sinusoidal signal in response to illumination with an image of appropriate size. The detection system can use either coherent or non-coherent light, and existing textures in standard materials such as paper or printed patterns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.