US PATENT SUBCLASS 375 / 270
.~.~ Vestigial or single sideband or suppressed carrier

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

259  DF  SYSTEMS USING ALTERNATING OR PULSATING CURRENT {4}
268  DF  .~ Amplitude modulation {2}
270.~.~ Vestigial or single sideband or suppressed carrier

DEFINITION

Classification: 375/270

Vestigial or single sideband or suppressed carrier:

(under subclass 268) Subject matter where less than two complete sidebands are transmitted, with or without the carrier or two complete sidebands are transmitted without the carrier.

SEE OR SEARCH THIS CLASS, SUBCLASS:

277, for vestigial, or single sideband-frequency shift keyed systems.

SEE OR SEARCH CLASS

332, Modulators,

167+, or 170+ for a suppressed carrier type or a single or vestigial sideband type amplitude modulator, per se.

348, Television, appropriate subclasses for television systems and transmitters that use vestigial sidebands.

455, Telecommunications, 46, and 47 for suppressed carrier and single or vestigial sideband systems; subclass 109 for amplitude modulation transmitters; and subclasses 202 through 204 for amplitude modulated receivers.