Master controller succession system for bus control access for d

Details Master controller succession system for bus control access for d Master controller succession system for bus control access for d

1983-05-25

1986-06-17

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 16, H04J 302

Patent

active

045960127

ABSTRACT:
An apparatus and a method which permits a plurality of master stations to be attached to a communications channel and to provide an arbitrating mechanism within each master by which one master station is designated as in control of the communications channel. The method overcomes the single point failure of the true master slave station by providing redundant masters. Furthermore, each station in the network is polled by a grant transmission at a constant interval of time irrespective of which master is in control of the bus to assure efficient utilization of the bus.

REFERENCES:
patent: 4177450 (1979-12-01), Sarrand
patent: 4328586 (1982-05-01), Hansen
patent: 4347602 (1982-08-01), Kister et al.
patent: 4349856 (1982-09-01), West et al.
patent: 4406007 (1983-09-01), Kister et al.
patent: 4432054 (1984-02-01), Okada et al.
patent: 4434421 (1984-02-01), Baker et al.
patent: 4466096 (1984-08-01), Heins et al.

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