Bidirectional dual network

Details Bidirectional dual network Bidirectional dual network

1985-04-19

1986-12-16

Orsino, Jr., Joseph A.

Multiplex communications

Wide area network

Packet switching

370 85, 370 86, 455607, 455612, H04B 900

Patent

active

046302565

ABSTRACT:
Two, operationally independent networks are established along a common transmission bus by having the signals for the respective networks propagate in opposite directions, and directionally coupling the station units of the respective networks to the transmission bus so as to receive and transmit signals in one of the two directions. The two networks can operate at different bit rates and wavelengths and, being operationally independent, can be installed and added to at different times.

REFERENCES:
patent: 4089584 (1978-05-01), Polczynski
patent: 4090067 (1978-05-01), Bell, III et al.
patent: 4161786 (1979-07-01), Hopkins et al.
patent: 4186380 (1980-01-01), Edwin et al.
patent: 4210780 (1980-07-01), Hopkins et al.
patent: 4317614 (1982-03-01), Palmer
patent: 4432088 (1984-02-01), Frankel
Campbell-Multiterminal Fiber Systems-Laser Focus-Jun. 1978, pp. 42, 44, 45.
Kraft-A 1 M Bit/Sec Data Loop for Security Sites-Conf. ICC '80, 1980 Inter. Conf. on Comm., Seattle, Wash. (8-12 Jun. 1980), pp. 14.3.1-14.3.5.
Trover-Fiber Optical Communications in Data Acquisition/Control Systems Conf. Inter. Instrumentation Symposium, Seattle, Wash., (5-8 May, 1980), pp. 675-691.

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