US PATENT SUBCLASS 348 / 513
.~.~ Frame or field synchronizers

Current as of: June, 1999
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348 /   HD   TELEVISION

500  DF  SYNCHRONIZATION {11}
512  DF  .~ Locking of video or audio to reference timebase {5}
513.~.~ Frame or field synchronizers {1}
514  DF  .~.~.~> Color television

DEFINITION

Classification: 348/513

Frame or field synchronizers:

(under subclass 512) Subject matter in which the audio or video data is written into a frame or field memory according to its own time or phase and read out according to the reference time or phase.