US PATENT SUBCLASS 455 / 187.1
.~.~.~ Separate tuned circuits for each channel or station

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}
187.1.~.~.~ Separate tuned circuits for each channel or station

DEFINITION

Classification: 455/187.1

Separate tuned circuits for each channel or station:

(under subclass 179.1) Subject matter including a plurality of separate and distinct circuit means each of which is tuned or tunable to resonate at a particular frequency corresponding to the frequency of a modulated carrier wave channel.

(1) Note. Each of the plurality of circuit means may be preadjusted to be resonant at the carrier frequency of a separate transmitting station and may be selectively inserted into the system at random or in a sequential order.

SEE OR SEARCH THIS CLASS, SUBCLASS:

178.1, for receivers with manual, mechanical, or electromechanical selection means using a plurality of tunable circuits.

SEE OR SEARCH CLASS

334, Tuners, appropriate subclasses, especially

7, for push button-type tuners utilizing a plurality of tuned selector circuits.