CMOS digital optical navigation chip
US6631218B2 · kind B2 · utility
3Cited by
12References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 9, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jan 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CMOS digital integrated circuit digitally captures an image, generates a result surface on which a minima resides, and compares the result surfaces. The correlation of the result surfaces represents a best fit image displacement between image frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.