Optical pointing device
US6847350B2 · kind B2 · utility
9Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Dec 10, 2022 |
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.