Image sensing apparatus having tone control function

Details Image sensing apparatus having tone control function Image sensing apparatus having tone control function

1991-10-28

1994-03-15

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358474, 358483, 250214B, 348230, 348241, H04N 104

Patent

active

052950018

ABSTRACT:
An image sensing apparatus includes a sensing device for receiving a light signal, performing a photoelectric conversion and storing information, and a control device for changing the saturation level of the electric charge storable by the sensing device. The saturation level of the electric charge is changed by the control device so as to be comparatively small in an earlier part of a unit-light storage interval which forms one picture, and larger in a latter part of the interval.

REFERENCES:
patent: 3953733 (1976-04-01), Levine
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patent: 4584611 (1986-04-01), Katahira
patent: 4626915 (1986-12-01), Takatsu
patent: 4635126 (1987-01-01), Kinoshita
patent: 4701626 (1987-10-01), Ishizaki et al.
patent: 4901152 (1990-02-01), Hieda et al.
patent: 5182658 (1993-01-01), Ishizaki et al.

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