US PATENT SUBCLASS 455 / 193.3
.~.~.~ Including 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}
193.1  DF  .~.~ With antenna circuit tuning {2}
193.3.~.~.~ Including varactor diode

DEFINITION

Classification: 455/193.3

Including varactor diode:

(under subclass 193.1) Subject matter wherein the tunable RF circuit includes a two-terminal semiconductor capacitive device.