Pointing device utilizing a photodector array
US5854482A · kind A · utility
70Cited by
17References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Mar 28, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0338
- 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.