Operator input device
US6172354A · kind A · utility
132Cited by
46References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0333
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An operator input device is configured to provide position information based on relative movement of the surface and the operator input device. The operator input device includes an image detector which is configured to detect an image on the surface and provide an image signal corresponding to the image detected. A controller is coupled to the image detector and is configured to receive the image signal and provide the position information based on a position of the image relative to the image detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.