Image reading apparatus
US11503173B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2021 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00771
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image reading apparatus includes a reading unit having a plurality of light receiving elements arranged in a main scanning direction and configured to read an original placed on an original platen, a moving portion configured to move the reading unit in a sub-scanning direction, an edge extractor configured to extract original edges from image data of an original pressure plate and the original read by the reading unit, a determiner configured to determine, from the original edges, an angle of an original leading edge with respect to the main scanning direction and position information of one end of the original leading edge, a controller configured to terminate a movement of the reading unit when an original trailing edge end point is extracted from the original edges, and a rotation correction unit configured to correct a rotation of the image data based on the angle and the position information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.