.~> By signal having discrete step amplitude variation
DEFINITION
Classification: 380/6
ELECTRIC SIGNAL MASKING:
(under the class definition) Subject matter wherein the characteristics of an information bearing electric signal are obscured by the addition of an extraneous interfering signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9+, for signal encryption by scrambling or other modification.
SEE OR SEARCH CLASS
455, Telecommunications,
1, for jamming of a modulated carrier wave signal.