US PATENT SUBCLASS 330 / 293
.~.~ Having negative feedback

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

250  DF  WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) {21}
291  DF  .~ Including signal feedback means {3}
293.~.~ Having negative feedback

DEFINITION

Classification: 330/293

Having negative feedback:

(under subclass 291) Subject matter wherein the signal feedback which is superimposed on the input signal has at least one component thereof opposite in phase to the input signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

75+, for signal feedback in other amplifiers.