Image reading apparatus capable of reading desired image areas
US5138670A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jun 19, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/3875
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A plurality of index members are arranged at desired positions on an end portion of a platen glass, the members being movable in a scanning direction of a scanner. A black mark is provided on a rear surface of each index member, and the mark as well as the original are read by an image reader, so that the positions of the index members can be detected. When one of the index members is detected as the scanner is moved, the image signals of the original included in the scanning region of the scanner are not outputted until the next index member is detected. In this manner, by continuously outputting image signals only of the desired areas of the original, the column skip edition can be readily and surely carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.