US PATENT SUBCLASS 342 / 357.05
.~.~.~ Using Doppler frequency shift

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

350  DF  DIRECTIVE {10}
352  DF  .~ Including a satellite {6}
357.01  DF  .~.~ With position indicating {5}
357.05.~.~.~ Using Doppler frequency shift

DEFINITION

Classification: 342/357.05

Using Doppler frequency shift:

(under subclass 357.01) Subject matter wherein position is determined using the magnitude of the change in the observed wave cycles per time when the satellite and object are moving with respect to each other.