US PATENT SUBCLASS 455 / 278.1
.~.~.~ Combined with noise or interference elimination

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

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}
278.1.~.~.~ Combined with noise or interference elimination {1}
279.1  DF  .~.~.~.~> Plural antenna currents entering single transformer

DEFINITION

Classification: 455/278.1

Combined with noise or interference elimination:

(under subclass 272) Subject matter including noise or interference elimination combined with or in the output circuit of at least one of the plurality collectors.

(1) Note. The claimed noise or interference elimination found in this subclass will be combined with or in the output path of at least one of a plurality of claimed antenna, collector device, or antenna circuit and generally consist of static or other noise elimination but may comprise correction for fading or other interfering signals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

283, for noise reduction or elimination in the output circuit of a single claimed antenna or collector means.

296, for noise or interference reduction or elimination means within or comprising an integral part of the receiver circuitry or structure.

SEE OR SEARCH CLASS

343, Communications: Radio Wave Antennas,

850+, for antenna structure with coupling network or impedance in the lead-in which may include noise or static suppression means, particularly subclass 851 for such networks with radiation suppressor.