H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/71
H04L 12/42 (2006.01) H04L 12/437 (2006.01)
Patent
CA 1332186
- 29 - METHOD AND APPARATUS FOR IDENTIFYING LOCATION OF A LOST TOKEN SIGNAL IN A DATA COMMUNICATION NETWORK 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.
596362
Brown David Brooks
Wallace Richard Egbert
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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