Image sensing device utilizing synchronized LEDs and light senso

Details Image sensing device utilizing synchronized LEDs and light senso Image sensing device utilizing synchronized LEDs and light senso

1992-07-31

1993-12-07

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

358475, 358482, H04N 146

Patent

active

052687520

ABSTRACT:
A red light is emitted from a red light source and a manuscript is radiated with the emitted red light and the red light reflected from the manuscript enters image sensors arranged in parallel. The red light source is synchronized with a first switching means of a first image sensor to output an output electric signal from the first image sensor. A green light is emitted, radiated reflected, and enters in the same manner as the red light. A green light source is synchronized with the first switching means to output another output electric signal from the first image sensor. A blue light is emitted and other output electric signal is outputted in the same manner as the green light. In this way a color image of the manuscript is converted into the three electric signals with respect to a first dot of the manuscript. With respect to a second dot to a 1728th dot (in the case of an A4 size manuscript), a color image of the manuscript is also converted into the three electric signals. In this way a first line of the manuscript is scanned by the device of the present invention.

REFERENCES:
patent: 4394089 (1983-07-01), McIntosh et al.
patent: 4415925 (1983-11-01), Tamura
patent: 4517591 (1985-05-01), Nagashima et al.
patent: 4638372 (1987-01-01), Leng et al.
patent: 4660095 (1987-04-01), Cannella et al.
patent: 4731661 (1988-03-01), Nagano
patent: 4833533 (1989-05-01), Augusti et al.

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