Optical navigation device and associated methods
US8405607B2 · kind B2 · utility
3Cited by
1References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sensor for an optical device includes an array of pixels in rows and columns which detect and process illumination falling thereon so as to identify inputs generated by a user on a surface of the optical device. A second reset period of variable length between a black calibration phase and an integration phase occurs in a processing cycle of a frame for each pixel, wherein the length of the second reset period is adjusted based on the ambient light conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.