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. 09, 1990
Filed:
Mar. 31, 1988
Takanori Ito, Kanagawa, JP;
Ricoh Company Ltd., Tokyo, JP;
Abstract
A digital color copying machine including a color-decomposing circuit for decomposing an incident color image into three fundamental colors and generating respective corresponding digital color signals; a color conversion circuit connected to the color-decomposing circuit for extracting a black component and one signal with the greatest density level from the three digital color signals and generating a plurality of fundamental color signals corresponding to the three digital color signals, and a first signal corresponding to the black component and a second signal corresponding to the one signal with the greatest density level; an image recorder connected to the color conversion circuit for recording on a predetermined medium images in the color corresponding to at least one of the fundamental color signals, the first signal and the second signal supplied thereto from the color conversion circuit; and a control circuit for controlling the color conversion circuit to deliver to the image recorder either the fundamental color signals and the first signal when recording in a plurality of colors in said first signal, the second signal when recording in the color corresponding to the second signal, or the first signal when recording in the color corresponding to the first signal.