Patent
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.
Ogihara Masuo
Saito Hiroyuki
Seki Yoichi
Blankenship Howard B.
Seikosha Co. Ltd.
LandOfFree
Camera and film winding-up apparatus for camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Camera and film winding-up apparatus for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera and film winding-up apparatus for camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-138614