Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2007-11-06
2007-11-06
Lee, Andrew C. (Department: 2616)
Multiplex communications
Communication over free space
Repeater
C370S503000, C370S516000
Reexamination Certificate
active
10153250
ABSTRACT:
A nodal division multiple access technique for multiple access to a communications channel such as a satellite transponder. The present invention provides multiple access into a communications channel where each accessing site utilizes one signal from a composite amplitude/phase digital signal constellation, such that demodulators receive the composite signal without changes in the system design related to the multiple access operation.
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Chen Ernest C.
Godwin John P.
Gates & Cooper LLP
Lee Andrew C.
The DIRECTV Group Inc.
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