US PATENT SUBCLASS 330 / 279
.~.~ And significant control voltage developing means

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

250  DF  WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) {21}
278  DF  .~ Including gain control means {4}
279.~.~ And significant control voltage developing means {2}
280  DF  .~.~.~> With delay means
281  DF  .~.~.~> With time constant means

DEFINITION

Classification: 330/279

And significant control voltage developing means:

(under subclass 278) Subject matter including specific details or distinctive characteristics of the gain control developing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127+, 143 and 144+, for other amplifiers having gain control systems which may have significant control voltage developing means.

SEE OR SEARCH CLASS

455, Telecommunications,

232.1+, for receivers which may have significant control voltage developing means as part of a gain control system.