Electronic flash photographing system

Details Electronic flash photographing system Electronic flash photographing system

1985-02-04

1989-12-12

Adams, Russell E.

3541451, G03B 1505

Patent

active

048871206

ABSTRACT:
An electronic flash photographing system transmits a timing clock signal from a camera to a flash unit through a first signal transmission path, and also transmits a plurality of information signals as a serial signal from the flash unit to the camera through a second signal transmission path in synchronism with the timing clock signal. At least when a subject is photographed, generation of the timing clock signal is stopped or transmission thereof to the first signal transmission path is interrupted. While the subject is being photographed, a light-emission stop signal is transmitted from the camera to the flash unit through the first signal transmission path.

REFERENCES:
patent: 4422744 (1983-12-01), Maida
patent: 4436396 (1984-03-01), Maida
patent: 4457601 (1984-07-01), Kondo et al.
patent: 4477164 (1984-10-01), Makai et al.
patent: 4491404 (1985-01-01), Hasegawa et al.

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