Image pickup apparatus with excess-charge control

Details Image pickup apparatus with excess-charge control Image pickup apparatus with excess-charge control

1985-12-17

1988-05-31

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821319, 35821315, H04N 314

Patent

active

047485060

ABSTRACT:
An image pickup apparatus in which a flux of light which enters through an iris to form an optical image is received by an image pickup element, the accumulating time of this image pickup element is changed, thereby converting the optical image which is obtained for a desired period of time into an electrical signal. In this apparatus, for example, the gain of the iris or signal processing system of the electrical signal is changed to control the electrical signal to a predetermined level irrespective of the noise component which is generated when the accumulating time is changed, to eliminate adverse effects of undrained excess charge in the pickup unit.

REFERENCES:
patent: 3435136 (1969-03-01), Bachmann et al.
patent: 4327378 (1982-04-01), Tanaka et al.
patent: 4409472 (1983-10-01), Kimura
patent: 4435729 (1984-03-01), Harwood et al.
patent: 4516172 (1985-05-01), Miyata et al.
patent: 4599654 (1986-07-01), Monroe
patent: 4599657 (1986-07-01), Kinoshita et al.
patent: 4651215 (1987-03-01), Bell et al.
patent: 4689686 (1987-08-01), Hasimoto et al.

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