US PATENT SUBCLASS 380 / 7
.~ Video

Current as of: June, 1999
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380 /   HD   CRYPTOGRAPHY

6  DF  ELECTRIC SIGNAL MASKING {2}
7.~ Video

DEFINITION

Classification: 380/7

Video:

(under subclass 6) Subject matter for masking a picture signal representative of an object or image.

(1) Note. The picture signal may represent either a static image (e.g., facsimile), or an object or image movable with time.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10+, for video signal encryption by scrambling or other modification.