Optical sensor switch system for a scanner
US6268599A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00962
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical sensor switch system is used to effect a selection function of a scanner. The depressed switch for a selected function changes the light intensity incident on the pixels of a light sensitive panel in two steps. This change in light intensity activates the operation of the particular function. The change in light intensity is effected by shuttering the light from a source to the pixels. The pixels of the panel are divided into different sections, each designated to a particular function for the scanner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.