Message generating communication apparatus having a message prea

Details Message generating communication apparatus having a message prea Message generating communication apparatus having a message prea

1989-01-30

1990-01-16

Yusko, Donald J.

Multiplex communications

Wide area network

Packet switching

370 941, 370 13, 34082544, 34082552, H04J 316

Patent

active

048948268

ABSTRACT:
A communication system has a first node which transmits on a data bus messages each having a preamble having a predetermined format including a message type and the message length, and a plurality of second nodes receiving messages from the data bus and including elements which can determine that the preamble in each message has the predetermined format. The preamble is particularly useful for allowing the second nodes to quickly detect messages not directed to those nodes of which the elements form a part, allowing the node to ignore the remainder of the message. This allows the individual nodes to exclude the message interpretation for detecting message directed to them, from their processing tasks thereby improving the effective processing speed of the network.

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