US PATENT SUBCLASS 342 / 47
.~.~ Distance measuring equipment (DME)

Current as of: June, 1999
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342 /   HD   COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)

42  DF  RADAR TRANSPONDER SYSTEM {6}
46  DF  .~ Navigational {1}
47.~.~ Distance measuring equipment (DME) {2}
48  DF  .~.~.~> With automatic lock-on
49  DF  .~.~.~> With VOR/TACAN

DEFINITION

Classification: 342/47

Distance measuring equipment (DME):

(under subclass 46) Subject matter including means to provide distance information by measuring total round-trip time of transmission from an interrogator to a transponder and return, with internationally recognized signals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

125, for distance determining system having an augmenter.

SEE OR SEARCH CLASS

701, Data Processing: Vehicles, Navigation, and Relative Location,

201+, for computer navigation systems.