1987-07-10
1988-04-12
Gellner, Michael L.
G03B 112
Patent
active
047378077
ABSTRACT:
A film rewinding device for a camera in which the rewind switch need only be momentarily depressed to initiate the rewinding operation. The rewind switch is a type which remains depressed after momentary activation. Activation of the rewind switch produces a first signal which is ANDed with a second signal which is present when the camera is in a normal state and it is possible to perform a rewinding operation. When both the first and second signals are active, a switching circuit applies power to a control section to effect the rewinding operation. The completion of the rewinding operation is detected by sensing the movement of the film. When the rewinding operation has been completed, the second signal is deactivated, thereby removing power from the control circuitry. The rewind switch is opened when the rear cover is opened.
REFERENCES:
patent: 4637702 (1987-01-01), Kazami et al.
Ohsawa Yutaka
Takami Satoshi
Asahi Kogaku Kogyo Kabushiki Kaisha
Gellner Michael L.
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