US PATENT SUBCLASS 455 / 275
.~.~.~ With frequency changing or selecting in the output path of one or more collectors

Current as of: June, 1999
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130  DF  RECEIVER OR ANALOG MODULATED SIGNAL FREQUENCY CONVERTER {24}
269  DF  .~ With wave collector (e.g., antenna) {4}
272  DF  .~.~ Plural separate collectors {5}
275.~.~.~ With frequency changing or selecting in the output path of one or more collectors

DEFINITION

Classification: 455/275

With frequency changing or selecting in the output path of one or more collectors:

(under subclass 272) Subject matter including specific details relating to frequency changing or fixed frequency selecting in the output path of at least one or more of the plurality of separate antennas or collectors and not

comprising an integral part of the receiver proper.

SEE OR SEARCH THIS CLASS, SUBCLASS:

193.1, for signal selection based on frequency with antenna circuit tuning.

289, for coupling varying, regulating, or control.

313+, for frequency modifying or conversion.