Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Patent
1993-08-11
1996-03-19
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
364459, 455 132, G01S 502
Patent
active
055006485
ABSTRACT:
A radio telecommunication system includes a number of satellites in low earth orbits. Any number of subscriber units communicates with the satellites. A single subscriber unit communicates with a single satellite using electromagnetic signals so that a measurement processor can obtain Doppler component, propagation duration, and real time measurements of the signals. A location processor converts these measurements into a geographic location with respect to the earth. A service processor determines which qualifications to apply to communication services offered by the system. These qualifications are based on the subscriber unit's location. A call processor carries out the qualifications when requests to setup calls involving the subscriber unit are received by the system and during calls involving the subscriber unit.
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Davieau Gerald J.
Maine Kristine P.
Olds Keith A.
Hall Phillip E.
Handy Robert M.
Johanson Kevin K.
Motorola Inc.
Phan Dao L.
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