US PATENT SUBCLASS 332 / 159
.~ Including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation

Current as of: June, 1999
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332 /   HD   MODULATORS

149  DF  AMPLITUDE MODULATOR {14}
159.~ Including stabilization or alternatively distortion, noise or other interference prevention, reduction or compensation {3}
160  DF  .~.~> Reduction or compensation of nonlinearity in modulation characteristic
161  DF  .~.~> Reduction of carrier phase or frequency variations or modulation
162  DF  .~.~> Using feedback to reduce distortion, noise or other interference

DEFINITION

Classification: 332/159

Including stabilization or alternatively distortion, noise, or other interference prevention, reduction or compensation:

(under subclass 149) Subject matter including the

neutralization of an undesirable characteristic of an amplitude modulator or its signals.

(1) Note. In some instances, distortion may be introduced to the AM system in order to compensate for other inherent distortion.

(2) Note. The neutralized characteristic might be some form of system instability.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107, for distortion or noise control in a pulse modulator.

123+, for distortion or noise control in a frequency modulator.

SEE OR SEARCH CLASS 455, Telecommunications,

63+, and 501+, for noise control in a telecommunication system with separated transmitter and receiver and subclass 114 for harmonic radiation control in a transmitter.