Video camera with low-speed shutter mode and automatic gain and

Details Video camera with low-speed shutter mode and automatic gain and Video camera with low-speed shutter mode and automatic gain and

1994-10-27

1996-07-30

Garber, Wendy

Television

Camera, system and detail

Combined image signal generator and general image signal...

348224, 348363, 348364, H04N 5235

Patent

active

055416500

ABSTRACT:
A video camera has a low-speed shutter mode in which an exposure time longer than a field period can be set. The camera has a memory means for storing a detected signal of a video signal. A selector has a first terminal, a second terminal and third terminal, the first terminal being supplied with the detected signal of the video signal which is stored in the memory, the second terminal being directly supplied with the detected signal of the video signal, and the third terminal being provided for selecting the first terminal or the second terminal. The detected signal of the video signal is stored in the memory in a period in which the detected signal of the video signal is supplied and optical control is performed by using the detected signal of the video signal which is stored in the memory in a period in which the detected signal of the video signal is not supplied.

REFERENCES:
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patent: 4881127 (1989-11-01), Isoguchi et al.
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patent: 5107334 (1992-04-01), Matsumoto
patent: 5153727 (1992-10-01), Choi
patent: 5293238 (1994-03-01), Nakano et al.
patent: 5386231 (1995-01-01), shimizu et al.
patent: 5387930 (1995-02-01), Toh
patent: 5400074 (1995-03-01), Shimizu

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