US PATENT SUBCLASS 330 / 273
.~.~ Having particular biasing arrangement

Current as of: June, 1999
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330 /   HD   AMPLIFIERS

250  DF  WITH SEMICONDUCTOR AMPLIFYING DEVICE (E.G., TRANSISTOR) {21}
262  DF  .~ Including push-pull amplifier {8}
273.~.~ Having particular biasing arrangement {1}
274  DF  .~.~.~> To eliminate crossover distortion

DEFINITION

Classification: 330/273

Having particular biasing arrangement:

(under subclass 262) Subject matter with specific details or distinctive characteristics of the biasing means applied to the amplifying device.

(1) Note. Merely claiming biasing means or bias filter by name only, or broadly without significant details or distinctive characteristics, is insufficient for classification in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199+, for particular biasing in general.

261, for particular biasing in combination with a

differential amplifier.

267, for particular biasing in combination with complementary symmetry.

285, for particular biasing in gain control circuits. 296, for particular biasing in other transistor amplifiers.