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.

Date of Patent:
May. 12, 1992

Filed:

Oct. 27, 1989
Applicant:
Inventors:

Yoshiharu Hibi, Kanagawa, JP;

Masao Seki, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 75 ; 358 80 ;
Abstract

In a picture forming apparatus for reproducing original images, an image processing device separates a signal corresponding to an original image into a plurality of separated color signals, an image converter converts the color signals into recording signals wherein each of the recording signals corresponds to a different color of coloring material used by the picture forming apparatus to reproduce the original image, a determining circuit determines the minimum value of the recording signals, and a color removal circuit performs under color removal on each of the recording signals in accordance with the determined minimum value.


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