Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-11-14
2006-11-14
Ferguson, Keith (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S427000, C455S430000, C455S431000, C455S003010, C455S003020, C455S403000, C455S012100
Reexamination Certificate
active
07136640
ABSTRACT:
A satellite system provides geosynchronous satellites in tundra orbits in respective elliptical orbital planes separated by 120 degrees. The satellites traverse a common figure-eight ground track comprising northern and southern loops. The satellites are controllably switched to operate the satellite currently traversing the northern loop to deliver a selected signal (e.g., a selected frequency signal) to satellite receivers.
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Ferguson Keith
Roylance,Abrams,Berch & Goodman, L.L.P.
XM Satellite Radio Inc.
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