发明授权
US07989748B2 Image reading apparatus, image forming apparatus, image inspecting apparatus and image forming system
有权
图像读取装置，图像形成装置，图像检查装置以及图像形成系统
- 专利标题： Image reading apparatus, image forming apparatus, image inspecting apparatus and image forming system
- 专利标题（中）： 图像读取装置，图像形成装置，图像检查装置以及图像形成系统
-
申请号： US11484641申请日： 2006-07-12
-
公开(公告)号： US07989748B2公开(公告)日： 2011-08-02
- 发明人: Yoshihisa Soeda , Norio Yamada , Yoshinobu Kagami , Osamu Inage , Kenichi Satoh , Atsushi Ikeda
- 申请人： Yoshihisa Soeda , Norio Yamada , Yoshinobu Kagami , Osamu Inage , Kenichi Satoh , Atsushi Ikeda
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 优先权： JP2005-204837 20050713; JP2005-204840 20050713; JP2006-075710 20060317
- 主分类号： H01L27/00
- IPC分类号： H01L27/00 ; G01N21/88 ; H04N5/217 ; H04N9/64
摘要：
A level detecting part detects image data levels for the respective output directions of the first half and the second half to be used for the linearity correction, which image data levels correspond to image data around a connection point between the first half and the second half and are obtained from respective combinations for the respective output directions of the first half and the second half. A calculating part calculates linearity correction values or correction value calculating parameters from the detected image data levels for any one of the first half and the second half; and a defect detection part detecting a defect in the image data levels thus detected around the connection point are provided.
公开/授权文献
信息查询
IPC分类:
