Optical mouse chip with silicon retina structure
US6697052B2 · kind B2 · utility
5Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0317
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical mouse chip with silicon retina structure comprises an image sensor array, an accumulator and a comparing/selecting unit. The image sensor array senses a direction parameter of an image along each axis. The accumulator sums the direction parameters of the image along different axes. The comparing/selecting unit selects a largest one from the sum of direction parameters of the image along different axes to determine a moving direction of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.