US PATENT SUBCLASS 455 / 272
.~.~ Plural separate collectors

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.~.~ Plural separate collectors {5}
273  DF  .~.~.~> With particular output combining {1}
275  DF  .~.~.~> With frequency changing or selecting in the output path of one or more collectors
276.1  DF  .~.~.~> With phase shifting, correcting, or regulating in the output path of one or more collectors
277.1  DF  .~.~.~> Selectively or alternately connected to receiver {1}
278.1  DF  .~.~.~> Combined with noise or interference elimination {1}

DEFINITION

Classification: 455/272

Plural separate collectors:

(under subclass 269) Subject matter in which there are two or more separate and distinct collecting means combined with a single receiving system.

SEE OR SEARCH CLASS

343, Communications: Radio Wave Antennas,

725+, for plural separate diverse type antennas; subclasses 729+ for plural diverse type antennas using the same active element; subclasses 776+ for plural waveguide type antennas; subclass 844 for plural antennas spaced a fractional or full wavelength apart (e.g., diversity); subclass 869 for plural loop antennas; subclass 879 for support means for plural antennas; and subclass 893 for plural antennas in general.

370, Multiplex Communications, appropriate subclasses for systems which may employ plural antenna to receive a plurality of messages or carriers (i.e., multiplex).