US PATENT SUBCLASS 342 / 42
RADAR TRANSPONDER SYSTEM

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

42RADAR TRANSPONDER SYSTEM {6}
43  DF  .~> Combined with primary radar system
44  DF  .~> Unique identity
45  DF  .~> IFF or SIF
46  DF  .~> Navigational {1}
50  DF  .~> With Telemetry
51  DF  .~> Transponder only

DEFINITION

Classification: 342/42

RADAR TRANSPONDER SYSTEM:

(under the class definition) Subject matter having means wherein the radar signal is received from an originating station, has information coded thereon or added and is retransmitted to the originating station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for repeater jammers which add false information to the radar signal.

30+, for transponder used in aircraft collision avoidance systems.

187, for radar augmenter circuitry, per se.