Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
Patent
1998-02-09
2000-03-14
Adams, Russell
Optics: motion pictures
With sound accompaniment
Common picture and sound record carrier systems
352 29, 352 30, G03B 3102
Patent
active
060380101
ABSTRACT:
A digital sound signal reproducing device 10 includes a reduced number of guide rolls and so forth by changing the mounting position of a sound drum 13. The digital sound signal reproducing device 10 is made up of a guide sprocket 11, a guide roll 14 and a sound drum 13, about which runs an image film 1. The sound drum 13 carries a optical readout device 20 for reading out and reproducing digital sound signals recorded on a digital sound signal recording portion 5 of the image film 1. The guide sprocket 11 is arranged in the vicinity of an image film supply port 10A supplied with the image film 1. The guide roll 14 is arranged in the vicinity of an image film output port 10B from which the image film 1 is led out. The guide sprocket 11 includes an image film running adjustment device 30 adapted for applying a running load on the image film 1 supplied to the optical readout device 20.
REFERENCES:
patent: 4551827 (1985-11-01), Custer et al.
patent: 5155510 (1992-10-01), Beard
patent: 5327182 (1994-07-01), Kohut et al.
patent: 5386255 (1995-01-01), Beard et al.
patent: 5596380 (1997-01-01), Ozaki et al.
Adams Russell
Frommer William S.
Sony Cinema Products Corporation
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