Multiplex communications – Wide area network – Packet switching
Patent
1993-04-19
1995-07-11
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 691, 370 951, 370 38, 379 59, 455 331, 455 531, H04B 726, H04B 702
Patent
active
054327806
ABSTRACT:
A cellular radiotelephone communication system cell site equipment is provided. The cell site equipment includes a radio frequency transmitter operating as one signal frequency source. In addition, the cell site equipment includes a first and a second signal combiner device tuned to a first and a second signal frequency, respectively. Further, the cell site equipment includes a radio frequency switching mechanism, operatively coupled to the radio frequency transmitter, the first signal combiner device, and the second signal combiner device, for coupling the radio frequency transmitter to either of the first and the second signal combiner devices. In one embodiment, each signal combiner device includes a resonant cavity for isolating a signal frequency source from other signal frequency sources and a coupling for coupling the isolated signal frequency source to a common transmitter output. In an alternative embodiment, each signal combiner device includes a resonant cavity for isolating a signal frequency source from other signal frequency sources and a coupling for coupling the isolated signal frequency source of the first and the second signal combiner device to a first and a second common transmitter output, respectively.
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Kobrinetz Anthony
Long James F.
Smith John M.
Wanat Ronald J.
Buford Kevin A.
Chin Wellington
Dempster Shawn B.
Motorola Inc.
Motsinger F. John
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