US PATENT SUBCLASS 348 / 19
.~.~.~ Field or frame difference (e.g., moving frame)

Current as of: June, 1999
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348 /   HD   TELEVISION

13  DF  TWO-WAY (E.G., INTERACTIVE) {1}
14  DF  .~ With voice capability (e.g., videophone) {4}
17  DF  .~.~ Transmission scheme {2}
19.~.~.~ Field or frame difference (e.g., moving frame)

DEFINITION

Classification: 348/19

Field or frame difference (e.g., moving frame):

(under subclass 17) Subject matter wherein transmitted image information represents only changes from a previous image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

412+, and 415, for digital bandwidth reduction involving difference transmission which may include a field or frame difference.