US PATENT SUBCLASS 455 / 169.2
.~.~.~.~ With varactor diode

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}
169.1  DF  .~.~.~ With particular variable voltage or current tuning {1}
169.2.~.~.~.~ With varactor diode

DEFINITION

Classification: 455/169.2

With varactor diode:

(under subclass 169.1) Subject matter wherein the particular variable voltage or current tuning means includes a two-terminal semiconductor device capacitance varies with the applied voltage.