Image pick up apparatus having pixel compensation circuit

Details Image pick up apparatus having pixel compensation circuit Image pick up apparatus having pixel compensation circuit

1988-05-13

1990-02-20

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 43, H04N 9083

Patent

active

049031210

ABSTRACT:
In an image pick up apparatus having an image pick up device (1), an amplifier (2), a vertical contour compensation circuit (500), a gamma correction circuit (8), a horizontal contour compensation circuit (9), a color operation circuit (200), and an encoder (10), pixel compensation circuits (100, 100') are provided for reducing modulation components are caused by a color filter during saturation in an image pick up device (1). Horizontal low-pass circuits (7a, 7b) combined with clippers (24a, 24b) are provided in the vertical contour compensation circuit (500) to reduce a modulation components caused by such compensation in the pixel compensation circuits (100, 100').

REFERENCES:
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patent: 4205336 (1980-05-01), Nagumo
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patent: 4390895 (1983-06-01), Sato et al.
patent: 4473839 (1984-09-01), Noda
patent: 4638352 (1987-01-01), Noda et al.
patent: 4697208 (1987-09-01), Eino
patent: 4714955 (1987-12-01), Nishimura et al.
patent: 4714966 (1987-12-01), Saito et al.
patent: 4833527 (1989-05-01), Kondo

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