US PATENT SUBCLASS 455 / 183.1
.~.~.~ With frequency synthesizer

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}
183.1.~.~.~ With frequency synthesizer {1}
183.2  DF  .~.~.~.~> Processor controlled

DEFINITION

Classification: 455/183.1

With frequency synthesizer:

(under subclass 179.1) Subject matter including means for deriving a plurality of local oscillator frequencies from a variable frequency oscillator by frequency multiplication or division.

SEE OR SEARCH THIS CLASS, SUBCLASS:

76, for transceivers with frequency synthesizers.

165.1, for frequency scanning receivers with frequency synthesizers.

260, for automatic frequency control receivers with frequency synthesizers.

SEE OR SEARCH CLASS

331, Oscillators,

1, for oscillator frequency control circuits with particular logic elements (e.g., programmable divider in a phase locked loop).