US PATENT SUBCLASS 327 / 551
.~ Unwanted signal suppression

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
551.~ Unwanted signal suppression {1}
552  DF  .~.~> Active filter {5}

DEFINITION

Classification: 327/551

Unwanted signal suppression:

(under subclass 524) Subject matter wherein an undesired signal or group of signals is diminished and wherein such subject matter is not elsewhere classifiable.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98, for separating composite signals.

310+, for transient or signal noise reduction by limiting, clipping, or clamping.

SEE OR SEARCH CLASS

326, Electronic Digital Logic Circuitry,

21+, for signal sensitivity or transmission integrity which includes input noise margin enhancement.