Image pickup apparatus and method and system for controlling the

Details Image pickup apparatus and method and system for controlling the Image pickup apparatus and method and system for controlling the

1990-03-28

1994-03-29

Groody, James J.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348364, H04N 5238, H04N 530

Patent

active

052990150

ABSTRACT:
Disclosed are an image pickup apparatus and method and system for controlling the exposure of the image pickup apparatus. The image pickup apparatus includes a circuit for detecting a voltage corresponding to a current value of an iris, a circuit for generating a voltage corresponding to a desired iris value, a circuit for comparing the two voltages, and a circuit for controlling the iris based on the result of the comparison so as to keep the iris value at the desired value, in which the exposure start time of an image pick-up device is changed in an increment/decrement of one horizontal scanning period and/or in an increment/decrement of a period shorter than one horizontal scanning period to thereby make it possible to perform manual-iris mode automatic exposure control.

REFERENCES:
patent: 4300167 (1980-11-01), Miller et al.
patent: 4806964 (1989-02-01), Tamada et al.
patent: 4835617 (1989-05-01), Todaka et al.
patent: 4868667 (1989-09-01), Tani et al.
patent: 4884144 (1989-11-01), Jinnai et al.
patent: 4890166 (1989-12-01), Kimura et al.
patent: 4959727 (1990-09-01), Imaide et al.
patent: 4959728 (1990-09-01), Takahashi et al.
patent: 4967281 (1990-10-01), Takada
patent: 4972266 (1990-11-01), Tani
patent: 5087978 (1992-02-01), Hieda
IEEE Trans. on Consumer Electronics, vol. CE-33, No. 3, Aug. 1987, pp. 249-254.
Kinugasa et al., "An Electronic Variable-Shutter System in Video Camera Use", I.E.E.E. Transactions on Consumer Electronics, vol. CE-33, No. 3, Aug. 1987, New York, U.S.A., pp. 249-254.
IEEE Transactions on Consumer Electronics, vol. CE-33, No. 3, Aug. 1987, pp. 249-254, entitled "An Electronic Variable-Shutter System in Video Camera Use", by Kinugasa et al.
Nikkei Microdevices Publication, Oct. 1987, pp. 63-64, entitled "Electronic Variable Shutter Effective for Example in Enhancing Moving Object Resolution".

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