US PATENT SUBCLASS 348 / 567
.~.~.~.~ Memory

Current as of: June, 1999
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348 /   HD   TELEVISION

553  DF  BASIC RECEIVER WITH ADDITIONAL FUNCTION {4}
563  DF  .~ For display of additional information {2}
564  DF  .~.~ Simultaneously and on same screen (e.g., multiscreen) {1}
565  DF  .~.~.~ Picture in picture {3}
567.~.~.~.~ Memory

DEFINITION

Classification: 348/567

Memory:

(under subclass 565) Subject matter including a specific circuitry for storing at least the second image signal before it is inserted or combined with the primary image signal.