Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-07-19
2005-07-19
Perez-Gutierrez, Rafael (Department: 2686)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S013200, C455S430000, C370S324000
Reexamination Certificate
active
06920323
ABSTRACT:
In a satellite communications system, where a user terminal10, on the surface of the earth12, can be in diversity communication to an earth station18via two orbiting satellites14, 16at once, and there is a need, at some time, when one of the two satellites14, 16orbits our of range, to engage another satellite22in its place, the user terminal10is operative to suppress TDMA timeslots in its communications with the two satellites14, 16to listen and report on broadcast messages from another satellite22, the suppressed timeslots being based on an assessment of which of the two satellites has the largest path attenuation.
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Davis , Wright, Tremaine, LLP
Donohue Michael J.
ICO Services Ltd.
Perez-Gutierrez Rafael
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