US PATENT SUBCLASS 455 / 184.1
.~.~.~ With comparing desired and existing tuning conditions

Current as of: June, 1999
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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}
184.1.~.~.~ With comparing desired and existing tuning conditions

DEFINITION

Classification: 455/184.1

With comparing desired and existing tuning conditions:

(under subclass 179.1) Subject matter including comparison means for determining the difference between the carrier wave to which the receiver is current tuned and a newly selected carrier wave.

SEE OR SEARCH THIS CLASS, SUBCLASS:

161.1+, for frequency scanning receivers which may include comparison means.

170.1+, for manual, mechanical, or electromechanical frequency selection which may also include comparison means.