Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-03-31
1990-01-09
Braun, Fred L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
346157, 355327, G03F 308, H04N 146, G03G 1501
Patent
active
048931799
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.
REFERENCES:
patent: 4410909 (1983-10-01), Uedo et al.
patent: 4469433 (1984-09-01), Kurata et al.
patent: 4667250 (1987-05-01), Murai
patent: 4739397 (1988-04-01), Hayashi
patent: 4789892 (1988-12-01), Tsuzuki et al.
Braun Fred L.
Ricoh & Company, Ltd.
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