US PATENT SUBCLASS 348 / 565
.~.~.~ Picture in picture

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.~.~.~ Picture in picture {3}
566  DF  .~.~.~.~> Color television
567  DF  .~.~.~.~> Memory
568  DF  .~.~.~.~> Compression

DEFINITION

Classification: 348/565

Picture in picture:

(under subclass 564) Subject matter including a specific circuitry for processing a second image signal and for inserting the second image into the normal image.