Duplex communication wireless

Details Duplex communication wireless Duplex communication wireless

1988-07-20

1990-03-06

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

370 32, 370 38, H04B 150, H04L 514

Patent

active

049072196

ABSTRACT:
A duplex communication wireless apparatus of the type wherein the sum or difference component of a transmission frequency f1 and a reception frequency f2 becomes an intermediate frequency of a receiver. The apparatus includes an input/output resonance circuit exhibiting resonance substantially with said transmission frequency f1 and said reception frequency f2; and a reception input circuit adapted to receive simultaneously both a transmission signal at the transmission frequency f1 from a transmitter and a reception signal at the reception frequency f2 supplied through said input/output resonance circuit for conversion into an intermediate frequency component signal of .vertline.f1.+-.52.vertline. and to produce an output.

REFERENCES:
patent: 4212013 (1980-07-01), Biethan et al.
patent: 4231116 (1980-10-01), Sekiguchi et al.
patent: 4685099 (1987-08-01), White et al.

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