Telecommunications – Interference signal transmission
Reexamination Certificate
2006-03-07
2006-03-07
Gesesse, Tilahun (Department: 2684)
Telecommunications
Interference signal transmission
C342S357490, C342S357490
Reexamination Certificate
active
07010262
ABSTRACT:
A method and apparatus for circumventing jamming of receivers for a global positioning system (GPS) include determining that a receiver is being jammed by a jamming signal not originating from the GPS. A first signal is transmitted from a portable unit including the receiver to a component of a second positioning system that is different from the GPS. A second signal is received from the second positioning system. The second signal includes data that indicates a position for the portable unit determined in the second positioning system based at least in part on the first signal.
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Fasulo, II Albert J.
Gesesse Tilahun
The Johns Hopkins University
Trinh Tan
LandOfFree
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