发明名称 Image reading apparatus
摘要 An image reading device includes a light irradiation device that moves and scans a document while irradiating the light on the document table, a color CCD sensor which reads the reflecting light of the light from the light irradiating device and photoelectric converts it into plural color signals, and a correction device which executes the shading correction of plural color signals that are photoelectric converted by the color CCD sensor and at the same time, executes the color balance correction and the stray light correction. Further, at the same time with the shading correction executed using white document data comprising R, G, B signals of a white document in color equipment to the shading correction plate that are read and photoelectric converted by the color CCD sensor as desired values for the shading correction, this image reading device executes the color balance correction and the stray light correction.
申请公布号 US6958834(B1) 申请公布日期 2005.10.25
申请号 US20000613868 申请日期 2000.07.11
申请人 TOSHIBA TEC KABUSHIKI KAISHA 发明人 IDE NAOAKI
分类号 H04N1/401;H04N1/407;H04N1/46;(IPC1-7):H04N1/46 主分类号 H04N1/401
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