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:
Jan. 29, 1991
Filed:
Mar. 07, 1989
Applicant:
Inventor:
Takanori Ito, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G03F / ;
U.S. Cl.
CPC ...
358 80 ; 358 75 ;
Abstract
A color correction device used for a color electrophotographic machine or color printing machine. The device includes a hue area judgement unit for judging to which hue area among at least three predetermined hue areas the hut represented by input color image signals belongs by comparing the input color image signals with each other. With respect to the judged hue area according to this judgment, color correction parameters are set, and in accordance with the set color correction parameters, the input image signals are converted to output color image signals used for printing.