Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-07-16
1993-02-09
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 41, 358 75, H04N 907
Patent
active
051856590
ABSTRACT:
A color image reading apparatus includes reading circuitry for reading a color image and dot sequentially outputting a plurality of color component signals. Common amplifying circuitry is provided for sequentially amplifying the plurality of analog color component signals which are dot sequentially output from the reading circuitry. Common converting circuitry is provided for sequentially converting the plurality of color component signals, which are amplified by the common amplifying circuitry, into a plurality of digital color component signals. Separating circuitry is provided for separating the plurality of digital color component signals, which are converted by the common converting circuitry, into digital color component signals of each color. Finally, switching circuitry is provided for sequentially switching a gain of the amplifying circuitry in accordance with a color of the analog color signal to be amplified.
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Itagaki Hiroshi
Matsuoka Nobuo
Canon Kabushiki Kaisha
Groody James J.
Lee Michael
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