US PATENT SUBCLASS 352 / 20
.~.~.~ Control signal carried by picture record

Current as of: June, 1999
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352 /   HD   OPTICS: MOTION PICTURES

1  DF  WITH SOUND ACCOMPANIMENT {12}
12  DF  .~ Picture and sound synchronizing {7}
19  DF  .~.~ Picture controls sound {1}
20.~.~.~ Control signal carried by picture record

DEFINITION

Classification: 352/20

(under subclass 19) Subject matter in which the sound recorder or reproducer is controlled from a signal or signal generating element carried by the picture record.