Multiplex communications – Wide area network – Packet switching
Patent
1988-03-28
1990-02-27
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
333110, H04J 110
Patent
active
049052390
ABSTRACT:
Apparatus for transferring RF signals between a plurality of inputs and a plurality of outputs comprises a plurality of output multiplexers 30.sub.1 . . . 30.sub.10, each made up of a plurality of hybrid/tunable filter combinations 21.sub.1 . . . 21.sub.8. The RF signal inputs of the apparatus are supplied to one output multiplexer 30.sub.1 and the inputs of each output multiplexers are connected to the inputs of the adjacent multiplexer, such that a signal not transmitted by one output multiplexer will be passed to a next output multiplexer, and so on. By appropriate tuning of the filters 24 in the output and multiplexers the RF signals may be reconfigurably distributed between the inputs and the outputs, and, the need for switching is avoided while maintaining an acceptably low path loss.
REFERENCES:
patent: 4029902 (1977-06-01), Bell, Jr. et al.
patent: 4426630 (1984-01-01), Folkmann
patent: 4706239 (1987-11-01), Ito et al.
patent: 4815075 (1989-03-01), Cameron
Barnett Richard J.
Lockwood Andrew S.
British Aerospace Public Limited Company
Marcelo Melvin
Olms Douglas W.
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