Optical pointing device
US6552713B1 · kind B1 · utility
42Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1999 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Dec 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03547
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device has a case and a screen attached to the case. The screen indicates a cursor position. The electronic device further has an input device mounted to the case. The input device includes a curved surface for detecting an object disposed on the curved surface using a light path that transfers an image of the object to an optical sensor. The optical sensor detects the movement of the object across the curved surface and in response, the input device manipulates the cursor position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.