US PATENT SUBCLASS 455 / 165.1
.~.~.~ 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}
161.1  DF  .~.~ Frequency scanning {9}
165.1.~.~.~ With frequency synthesizer

DEFINITION

Classification: 455/165.1

With frequency synthesizer:

(under subclass 161.1) Subject matter wherein the selection means includes 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.

183.1, for channel or station selection with frequency synthesizers.

260, for automatic frequency control receivers with frequency synthesizers.

SEE OR SEARCH CLASS

331, Oscillators,

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