Multiplex transmission system for automotive vehicles

Details Multiplex transmission system for automotive vehicles Multiplex transmission system for automotive vehicles

1989-10-25

1993-10-05

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, 370 952, H04J 302

Patent

active

052512118

ABSTRACT:
A multiplex transmission system for automotive vehicles includes a plurality of communication nodes interconnected via a common multiplex transmission line. Each communication node includes a communication control device for controlling communication among the communication nodes in accordance with a decentralized multiplex protocol, a transmitting device for transmitting a reception acknowledgement signal to the multiplex transmission line upon receiving reception data from the multiplex transmission line normally in a reception mode, a memory device for storing beforehand, as data in table form, reception acknowledgment signals from respective ones of the communication nodes in a predetermined state, a comparator device for comparing, after a transmission, an actual reception acknowledgment signal from each communication node with the data table in a transmission mode, and a re-transmission control device for performing re-transmission control of communication among the communication nodes based on the results of the comparison.

REFERENCES:
patent: 4914654 (1990-04-01), Matsuda et al.
patent: 4942571 (1990-07-01), Moller et al.
patent: 4951281 (1990-08-01), Muto et al.
Doc #EP-A-217571--Crawford et al "Data Transfer Communication System" Oct. 9, 1986.
Doc #EP-A-319271--Muto et al. "Multiplex Transmission System" Nov. 30, 1988.
English summary of U.S. Ser. No. 276,222 and U.S. Ser. No. 277,060.

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