Image reading apparatus
US8339685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Aug 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4097
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The image reading apparatus is provided with: a manuscript table on which a manuscript is placed; a reflection mirror that moves relative to the manuscript table, and that reflects light which is emitted to and then reflected by the manuscript placed on the manuscript table; an image data generating unit that includes plural light receiving pixels receiving the light reflected by the reflection mirror, and that generates image data on the basis of the light received by the plural light receiving pixels; and a positional information acquiring unit that acquires the image data generated by the image data generating unit with movement of the reflection mirror, and that acquires, on the basis of a density value of each pixel in the image data, information on a position of a pixel affected by an adhesion substance adhering to the reflection mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.