Method and apparatus for synchronizing the reading of audible an

Details Method and apparatus for synchronizing the reading of audible an Method and apparatus for synchronizing the reading of audible an

1978-01-11

1980-05-27

Gellner, Michael L.

Optics: motion pictures

With sound accompaniment

Picture and sound synchronizing

352 31, G03B 3104

Patent

active

042047510

ABSTRACT:
The sound support comprises an address track with coded words dividing the sound support into consecutive sections, each associated with a particular address. The positioning of the sound support is controlled in such a manner as to advance a section of the sound support bearing a predetermined address, to the level of a reading head. The video support comprises images, each associated with a particular address, and its positioning is controlled so as to advance in front of a projection gate an image having a predetermined address. The simultaneous running of the sound and video supports are then controlled, the speed of image projection being able to vary and being controlled according to pre-recorded instructions on a control data support, the access to which is neither related to the advance motion of the sound support nor to the image support.

REFERENCES:
patent: 3979774 (1976-09-01), Chen et al.
patent: 4027958 (1977-06-01), Shigeta et al.

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