Document sheet size or position recognition device
US4698511A · kind A · utility
24Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1985 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Nov 4, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00189
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a document sheet recognition device, a size or position of a document sheet mounted on a document table is detected by detecting light intensities at a plurality of fixed areas on the document sheet table, and the size or position thereof is determined in accordance with the detected light intensities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.