US PATENT SUBCLASS 348 / 512
.~ Locking of video or audio to reference timebase

Current as of: June, 1999
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348 /   HD   TELEVISION

500  DF  SYNCHRONIZATION {11}
512.~ Locking of video or audio to reference timebase {5}
513  DF  .~.~> Frame or field synchronizers {1}
515  DF  .~.~> Audio to video
516  DF  .~.~> By controlling video or sync generator {1}
518  DF  .~.~> Including compensation for transmission delays {1}
520  DF  .~.~> Color

DEFINITION

Classification: 348/512

Locking of video or audio to reference timebase:

(under subclass 500) Subject matter including means for changing the time or phase of video or audio signals so as to correspond to a reference time or phase.