Monitoring multiplex transmission system having a respective con

Details Monitoring multiplex transmission system having a respective con Monitoring multiplex transmission system having a respective con

1994-06-02

1996-04-02

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 858, 34082554, 34082506, 307 101, H04J 314, H04J 326

Patent

active

055047378

ABSTRACT:
A multiplex transmission system includes a number of multiplex transmission devices connected to each other via a common transmission line for transmitting frames of data. Each frame of data includes a string of bits. The number of multiplex transmission devices includes a first multiplex transmission device having a first communication controller, the first communication controller transmitting a first frame of data at predetermined intervals of time while changing a predetermined bit of data in the first frame; and a second multiplex transmission device having a second communication controller, the second communication controller transmitting a second frame of data to the first multiplex transmission device in response to one of (i) a change in input data from an external equipment, and (ii) a change in the predetermined bit of the first frame when the first frame is received by the second multiplex transmission device from the first multiplex transmission device.

REFERENCES:
patent: 4939725 (1990-07-01), Matsuda et al.
patent: 5305316 (1994-04-01), Yoshida et al.
patent: 5309436 (1994-05-01), Hirano et al.
patent: 5375120 (1994-12-01), Hirano et al.

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