US PATENT SUBCLASS 455 / 192.2
.~.~.~ Automatic (AFC)

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}
192.1  DF  .~.~ With frequency control {2}
192.2.~.~.~ Automatic (AFC)

DEFINITION

Classification: 455/192.2

Automatic (AFC):

(under subclass 192.1) Subject matter wherein the control means is a self-regulating control circuit in the receiver which compensates for small variations in a carrier signal frequency to provide a stable audio output.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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 tuning control.

182.2, for channel or station selection receivers with automatic frequency control.

SEE OR SEARCH CLASS

348, Television,

735, for television receiver with automatic frequency control.