Communications protocol for distributed station network

Details Communications protocol for distributed station network Communications protocol for distributed station network

1987-10-08

1989-02-21

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3408255, H04J 302

Patent

active

048072230

ABSTRACT:
A communication protocol is provided to enable one of a number of transmitters using a common transmission line to independently gain exclusive use of the line. Before transmitting data, a transmitter first monitors the line to establish that it is idle. If it is, the transmitter then asserts the line for an interval unique to that given device. Thereafter the transmitter monitors the device momentarily to determine that no other transmitter is asserting the line and, if so, the transmitter may then gain exclusive control of the line.

REFERENCES:
patent: 4345250 (1982-08-01), Jacobsthal
patent: 4476467 (1984-10-01), Terwilliger et al.

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