Improvements in apparatus for reproducing motion picture...

Details Improvements in apparatus for reproducing motion picture... Improvements in apparatus for reproducing motion picture...

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G11B 7/20 (2006.01) G03B 31/02 (2006.01) G11B 7/003 (2006.01) G11B 7/007 (2006.01) G11B 7/085 (2006.01) G11B 15/60 (2006.01) G11B 33/10 (2006.01)

Patent

CA 1221167

IMPROVEMENTS IN APPARATUS FOR REPRODUCING MOTION PICTURE FILM PHOTOGRAPHIC SOUND-TRACKS TO CORRECT REPRODUCTION ERRORS AND REDUCE NOISE Abstract of the Disclosure Apparatus for reproducing motion picture photo- graphic (optical) sound tracks is disclosed in which significant information regarding track placement, slit illumination, azimuth and impulse noise is derived by dynamically processing and comparing the signals ob- tained by reading each half of a bilateral sound-track. In a further embodiment a pair of detector elements mon- itors the septum between two tracks in order to detect lateral film misalignment.

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