Film feeding circuit

Details Film feeding circuit Film feeding circuit

1981-11-13

1984-02-14

Gellner, Michael L.

G03B 112, G03B 166

Patent

active

044312920

ABSTRACT:
A film feeding circuit operates to feed a film of a camera in response to a drive from a motor. Perforations formed in the film are detected at a given location, and counted by a counter. The count in the counter controls the energization of the motor. When the count reaches a predetermined number, the speed of movement of the film is reduced. In the absence of a film, the counter is counted by a pseudo signal. A power supply is turned off at the termination of a film feeding operation.

REFERENCES:
patent: 4309097 (1982-01-01), Stemme et al.

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