Image reading apparatus
US8345327B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image reading apparatus, which reads an image on an original, including: a light source extending along a main scanning direction to illuminate the original; a plurality of line sensors configured to receive light reflected from the original and to output light intensity signals; a storage unit configured to store reference data; and a determination unit configured to obtain determination data regarding hue based on a light intensity signal output from one of the plurality of line sensors that receive light reflected from a reflective reference member illuminated by the light source and a light intensity signal output from another of the plurality of line sensors that receive light reflected from the reflective reference member illuminated by the light source and to determine a hue balance of the light source based on the determination data and the reference data stored in the storage unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.