Apparatus and method for controlling data transmissions in a com

Details Apparatus and method for controlling data transmissions in a com Apparatus and method for controlling data transmissions in a com

1995-10-11

1997-05-27

Safourek, Benedict V.

Multiplex communications

Diagnostic testing

Fault detection

39518207, H04L 1240

Patent

active

056338570

ABSTRACT:
An apparatus for controlling data transmissions in a communication network which includes a plurality of nodes connected to a common bus, each of said nodes having a communication processor with a memory and a bus control device associated with the processor. The apparatus comprises malfunction a detect control device provided in one of the nodes for detecting a malfunction in the network and generating a malfunction signal to every node over the bus when the malfunction is detected and an alarm to an operator for repair of the network in case of a network malfunction, a malfunction detect device provided in each of the other nodes for receiving the malfunction signal and controlling the connection with a bus diagnosing device provided in every node and responsive to the malfunction detect device for diagnosing whether the detected malfunction has occurred in its node and forcing the processor to stop its operation for data transmissions; and the malfunction detect device also forcing the bus control device to disconnect with the bus, thereby removing the malfunction in the network.

REFERENCES:
patent: 4354226 (1982-10-01), Flickinger
patent: 4608559 (1986-08-01), Friedman et al.
patent: 5249183 (1993-09-01), Wong et al.
patent: 5299193 (1994-03-01), Szczepamek

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