Multiplex communications – Wide area network – Packet switching
Patent
1978-09-21
1980-07-08
Konick, Bernard
Multiplex communications
Wide area network
Packet switching
375 7, H04B 140
Patent
active
042120136
ABSTRACT:
A duplex-transmitter-receiver arrangement wherein only a single oscillator is utilized for the transmitter and receiver for a digitally modulated radio communication system wherein each location has a transmitter and receiver and a single oscillator is used for both the transmitter and receiver with a circulator switch connected respectively to the antenna, the receiver and the transmitter with the oscillator in the transmitter coupling through to the branch for the receiver so as to serve as a mixing frequency for the receiver.
REFERENCES:
patent: 2939139 (1960-05-01), Handler
patent: 3426279 (1969-02-01), Berman
patent: 4134068 (1979-01-01), Richardson
Biethan Gunter
Kloeber Peter
Konick Bernard
Popek Joseph A.
Siemens Aktiengesellschaft
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