Pointing device utilizing a photodetector array
US6124587A · kind A · utility
109Cited by
18References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Dec 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A cursor control device for personal computers and workstations includes various embodiments, some of which include a patterned ball and some of which rely on other patterned surfaces, which recognizes changes in the position of the pattern relative to a sensor having an array of photosensitive elements. Circuitry associated with the sensor determines movement of the pattern across the array, and translates that movement into conventional cursor control signals supplied to a host system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.