Method and apparatus for identifying location of a lost token si

Details Method and apparatus for identifying location of a lost token si Method and apparatus for identifying location of a lost token si

1988-04-20

1989-08-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 86, H04J 314

Patent

active

048602841

ABSTRACT:
Apparatus and method for identifying the location of a lost token signal continuously transmitted on transmission paths interconnecting nodes of a network to sequentially enable the nodes to write data onto the network. The arrival of the token signal at each node is recorded in counter states of a token track counter corresponding with the node. The recorded binary counter states are compared upon the failure of the token signal to arrive at a node to detect mismatches and transitions occurring between adjacent nodes counter states identifying the network location of the lost token signal.

REFERENCES:
patent: 4404557 (1983-09-01), Grow
patent: 4805168 (1989-02-01), Kato
patent: 4805170 (1989-02-01), Fergeson et al.

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