Motor-drive controlling apparatus

Details Motor-drive controlling apparatus Motor-drive controlling apparatus

1974-05-13

1976-02-24

Hix, L. T.

354204, 354206, G03B 118

Patent

active

039407764

ABSTRACT:
A motor-drive controlling apparatus used in attachment with a still camera includes a motor circuit having a motor for driving the shutter releasing mechanism and the film winding mechanism of the still camera, a motor-driven switch, and a shutter switch actuated interlockingly with the shutter releasing mechanism. At least one operating switch controls the operation of a timer circuit in association with that of the shutter switch. The timer switch varies its output condition when it is successively operated longer than a length of time from the end of operation of the shutter switch to the start of the next operation thereof. A control circuit operates in response to the output condition of the timer circuit for controlling the energization of the motor in association with the motor-driven switch and the shutter switch.

REFERENCES:
patent: 3640201 (1972-02-01), Kimura
patent: 3688669 (1972-09-01), Ogiso et al.
patent: 3813681 (1974-05-01), Sahara

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