US PATENT SUBCLASS 380 / 10
.~ Video

Current as of: June, 1999
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380 /   HD   CRYPTOGRAPHY

9  DF  ELECTRIC SIGNAL MODIFICATION (E.G., SCRAMBLING) {18}
10.~ Video {10}
11  DF  .~.~> Variable time delay modulation of baseband video signal
12  DF  .~.~> Carrier phase shift
13  DF  .~.~> Carrier frequency conversion
14  DF  .~.~> Nonstandard scan of video information
15  DF  .~.~> By modifying synchronizing signal
16  DF  .~.~> Record or coin controlled
17  DF  .~.~> Phase inversion of scan line information
18  DF  .~.~> Facsimile
19  DF  .~.~> Encrypting of accompanying audio signal
20  DF  .~.~> Control coding

DEFINITION

Classification: 380/10

Video:

(under subclass 9) Subject matter for modifying either (a) a picture signal representative of an object or image, or (b) a signal transmitted with such a picture signal (e.g., audio).

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