Communications network, state machine therefor

Details Communications network, state machine therefor Communications network, state machine therefor

1994-12-16

1996-02-27

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

370 852, 375238, 34082507, H04L 502

Patent

active

054954690

ABSTRACT:
A link apparatus in a node of a mulitinode, collision--resolution, multiplexing communications system connected between a microcontroller (MCU) and a integrated driver and receiver (IDR) of the node for assuming some of the functions of the MCU in delivering and receiving messages to and from a signal-wire communications bus. The link apparatus provides circuits for automatically prepending a start-of-frame to a message being placed on the bus after determining that the conditions on the bus are suitable for transmitting messages. The link apparatus also contains circuits for determining when a node has won arbitration over another node competing for time on the bus.

REFERENCES:
patent: 5274636 (1993-12-01), Halter et al.
patent: 5287523 (1994-02-01), Allison et al.
patent: 5402420 (1995-03-01), Kobayashi

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