Image reading apparatus and method for controlling the same
US7782503B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Nov 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4097
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image reading apparatus reads an image from a document being simultaneously fed by the apparatus. A document feeder unit feeds the document on a original plate. A first image reading unit reads an image from the fed document at a first document-read position on the original plate. A second image reading unit reads an image from the fed document at a second document-read position located at a predetermined distance from the first document-read position in a document feeding direction. An abnormal pixel detection unit detects abnormal pixels resulting from rubbish moved between the first document-read position and second document-read position on the original plate together with the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.