Transmission failure diagnosis apparatus

Details Transmission failure diagnosis apparatus Transmission failure diagnosis apparatus

1990-02-15

1992-08-25

Chin, Stephen

Multiplex communications

Wide area network

Packet switching

370 13, 375 10, 371 151, H04J 314, H04B 1700

Patent

active

051425262

ABSTRACT:
A transmission failure diagnosis apparatus for use in a multiplex transmission system which sends and receives data by time division communication among a plurality of nodes connected by a common transmission path. This transmission failure diagnosis apparatus comprises a reception circuit, connected in the transmission path, for receiving a transmission signal on the transmission path, an amplitude detection circuit for detecting the signal amplitude of a transmission signal received by this reception circuit, and a judgment circuit for judging failures in the system on the basis of the amplitude of the transmission signal detected by the amplitude detection circuit.

REFERENCES:
patent: 3593275 (1971-07-01), Pumpe et al.
patent: 4213015 (1980-07-01), Kimbrough
patent: 4387461 (1983-06-01), Evans
patent: 4512033 (1985-04-01), Schrock
patent: 4951281 (1990-08-01), Muto et al.
Patent Abstracts of Japan, unexamined applications, vol. 7, No. 104, May 6, 1983, p. 113.

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