The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1998
Filed:
Apr. 18, 1995
Applicant:
Inventor:
Tomoshi Hara, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
358518 ; 358520 ; 382167 ;
Abstract
A color image reading device having a function of correcting a variation in the color separation characteristic for each device. In the color image reading device, a standard document is read to detect variations in the color separation characteristic, and on the basis of the detected values, the color separation characteristic is corrected by a color correction processing section provided at a stage after the color conversion unit. Thus, even if the color separation characteristic has a slight variation for each device, the variation can be corrected easily by reading the standard document as occasion requires.