US PATENT SUBCLASS 342 / 45
.~ IFF or SIF


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}
45.~ IFF or SIF


DEFINITION

Classification: 342/45

IFF or SIF:

(under subclass 42) Subject matter including means to transmit radio signals between two stations located on ships, aircraft, or the ground, for automatic identification of particular station characteristics, such as station type (e.g., ally or enemy, bomber or fighter, etc.).

(1) Note. IFF is an acronym for Identification - Friend or Foe.

(2) Note. SIF is an acronym for Selective Identification Feature.