US PATENT SUBCLASS 455 / 182.1
.~.~.~ With frequency control

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
150.1  DF  .~ Signal selection based on frequency (e.g., tuning) {13}
179.1  DF  .~.~ Channel or station selection {8}
182.1.~.~.~ With frequency control {1}
182.2  DF  .~.~.~.~> Automatic (AFC)

DEFINITION

Classification: 455/182.1

With frequency control:

(under subclass 179.1) Subject matter wherein the channel or station selection includes a local oscillator and a control means for stabilizing the oscillator frequency.

SEE OR SEARCH THIS CLASS, SUBCLASS:

75, for transceiver with frequency stabilization.

164.1+, for frequency scanning receivers with automatic frequency control.

173.1, for receivers with mechanical or electromechanical frequency selection means using AFC or fine tune control.

192.1+, for signal selection with AFC or fine tuning control.

257+, for receivers in general with automatic frequency control.