Optical mouse using VCSELs
US7791591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Jul 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0317
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical mouse for controlling a cursor on a display. The mouse emits a light beam that interacts with a target surface and receives reflected light therefrom to detect movement of the mouse. The mouse includes a housing, a single-mode VCSEL disposed within the housing for emitting the light beam through a surface of the housing, the emitted light interacting with the target surface, a photodetector disposed within the housing that receives the light reflected from the target surface and that provides an electrical output and a processor that receives the electrical output and calculates a value that is indicative of the amount and direction of movement of the optical mouse relative to the target surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.