Image pickup apparatus

Details Image pickup apparatus Image pickup apparatus

1997-10-14

2000-02-15

Coles, Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358475, 358509, 399198, H04N 140, G03G 15041

Patent

active

060259337

ABSTRACT:
According to an image pickup apparatus of this invention, a light source illuminates an object, an image pickup unit picks up an image of the illuminated object, an amplifier circuit amplifies the output signal for the image pickup unit, and a control unit adjusts the light amount of the light source after setting the maximum gain of the amplifier circuit and controls the image pickup unit to pickup the image of the object. An image pickup operation can be performed by irradiating an object with a minimum amount of light that the circuitry is capable of coping with.

REFERENCES:
patent: 3765776 (1973-10-01), Bravenec
patent: 3767907 (1973-10-01), Radcliffe, Jr.
patent: 4408231 (1983-10-01), Bushaw et al.
patent: 4766503 (1988-08-01), Lambert et al.
patent: 4951135 (1990-08-01), Sasagawa et al.
patent: 5053808 (1991-10-01), Takagi
patent: 5151796 (1992-09-01), Ito et al.
patent: 5414535 (1995-05-01), Kanmoto et al.
patent: 5563723 (1996-10-01), Beaulieu et al.
patent: 5726437 (1998-03-01), Ashikaga et al.

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