Multiplex communications – Wide area network – Packet switching
Patent
1978-12-22
1981-05-26
Stewart, David L.
Multiplex communications
Wide area network
Packet switching
307243, H04J 304
Patent
active
042702046
ABSTRACT:
A multiplexer circuit is disclosed wherein a diode ring circuit is coupled to a pair of logical signal sources and a first winding of a transformer. A second winding of the transformer is coupled to a control signal source. One of the pair of logical signal sources is coupled to a center tap of the first winding selectively in accordance with the control signal.
REFERENCES:
patent: 2923894 (1960-02-01), Thompson
patent: 3098214 (1963-07-01), Windes
patent: 3327135 (1967-06-01), Robb
patent: 4150256 (1979-04-01), Berne
Bartlett Milton D.
Pannone Joseph D.
Raytheon Company
Sharkansky Richard M.
Stewart David L.
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