Camera and film winding-up apparatus for camera

Details Camera and film winding-up apparatus for camera Camera and film winding-up apparatus for camera

1992-12-16

1994-10-25

Blankenship, Howard B.

G03B 118

Patent

active

053593766

ABSTRACT:
An apparatus for winding up film in a camera has a direct current brush motor and an arrangement for producing a pulse train of pulses in response to the production of brush noise by said motor as it rotates. A control circuit is responsive to the pulse train of pulses to control the advancing and rewinding of the film as well as to detect the winding ends and to detect the occurrence of film loading errors.

REFERENCES:
patent: 4758851 (1988-07-01), Zeth
patent: 5124735 (1992-06-01), Tsukahara et al.

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