US PATENT SUBCLASS 455 / 180.2
.~.~.~.~ UHF and VHF


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}
180.1  DF  .~.~.~ Combined with band selection {1}
180.2.~.~.~.~ UHF and VHF {2}
180.3  DF  .~.~.~.~.~> With phase locked loop (PLL) tuning
180.4  DF  .~.~.~.~.~> Varactor tuned (e.g., varactor diode)


DEFINITION

Classification: 455/180.2

UHF and VHF:

(under subclass 180.1) Subject matter wherein the desired frequency range is within 30 to 3000 MHz.

SEE OR SEARCH THIS CLASS, SUBCLASS:

188.2, for band selection receivers in general which include UHF and VHF band.