Dual cable communication system

Details Dual cable communication system Dual cable communication system

1989-03-30

1990-09-25

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 8511, H04J 302

Patent

active

049598295

ABSTRACT:
Apparatus and method for communicating between two or more cable interface units on a local area network such that each cable interface unit supports the International Standard Organization's 802.3 standard with the exception that two communication channels or paths are connected between the cable interface units. Only data is transferred on the first communication channel while a signal indicating usage of the first communication medium is broadcast on the second communication channel. Each cable interface unit on the network monitors the second communication channel while transmitting on the first. If it is determined that two cable interface units are transmitting simultaneously both cable interface units notify their respective communicating devices to cease transmission. Retransmission will be attempted at a later time.

REFERENCES:
patent: 4621360 (1986-11-01), Inoue
patent: 4638311 (1987-01-01), Gerety
patent: 4652873 (1987-03-01), Dolsen et al.
patent: 4755990 (1988-07-01), Bohler et al.

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