Contention free local area network

Details Contention free local area network Contention free local area network

1992-06-01

1995-06-06

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 161, 370 851, 370 853, 370 8511, 455 561, H04J 302

Patent

active

054228859

ABSTRACT:
A contention free local area network includes a token passing control bus (102) and a data bus (104) coupled to a plurality of communication nodes ( 108, 112, 114, 116, 118, and 120). The control bus (102) allows for a transmit-enable token to be daisy-chained along the plurality of communication nodes. When one of the communication nodes wants to transmit a message, the node upon receiving the transmit-enable token holds the token until it transmits its message along a data bus (104) to the other communication nodes. Once the message is transmitted, the particular communication node releases the transmit-enable token, allowing the token to continue to be rotated among the plurality of communication nodes (108, 112, 114, 116, 118 and 120).

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patent: 5274841 (1993-12-01), Natarajan et al.

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