Voltage detecting device for camera

Details Voltage detecting device for camera Voltage detecting device for camera

1980-06-16

1981-09-01

Gellner, Michael L.

354 23D, G03B 7093, G03B 1718

Patent

active

042868580

ABSTRACT:
A voltage detecting device for a camera arranged to use an analog-to-digital converter of the camera in common. A signal representing the power source voltage of the camera to be detected is impressed on an integrator of the analog-to-digital converter. There is provided an annunciating means such as a light emitting diode or a sound emitting body which changes the condition of the output thereof alternately in accordance with charge and discharge of the integrator and has a span of output time in each of the output conditions corresponds to a span of charge time or a span of discharge time of the integrator.

REFERENCES:
patent: 4211478 (1980-07-01), Huber et al.
patent: 4223987 (1980-09-01), Shimiju et al.

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