US PATENT SUBCLASS 380 / 12
.~.~ Carrier phase shift

Current as of: June, 1999
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380 /   HD   CRYPTOGRAPHY

9  DF  ELECTRIC SIGNAL MODIFICATION (E.G., SCRAMBLING) {18}
10  DF  .~ Video {10}
12.~.~ Carrier phase shift

DEFINITION

Classification: 380/12

Carrier phase shift:

(under subclass 10) Subject matter in which a picture signal modulated onto a carrier wave is modified by a phase change of the carrier.