Data transmission method and arrangement

Details Data transmission method and arrangement Data transmission method and arrangement

1990-10-30

1993-01-26

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

375 36, 375 7, 370 31, 370 27, 370 24, H04L 514, H04J 302

Patent

active

051827450

ABSTRACT:
For the transmission of data in the form of difference signals between subscribers connected to a bus, bus couplers are provided which permit switching between transmit and receive operation. The bus couplers each include a multiplexer connected in such a manner that, for receive operation, only push-pull states of the difference signal are evaluated. If common-mode states occur, the immediately previously decoded data are used. In the case of interference, e.g. one subscriber experiences a short circuit, his bus is terminated passively so that the bus traffic for the other subscribers is not adversely affected.

REFERENCES:
patent: 4445222 (1984-04-01), Smitt
patent: 4742309 (1988-05-01), Chu
B. Wiemann et al.; Bussysteme; rtp-Seminar; pp. S61 to S64; Aug. 1983.
B. Wiemann et al.; Bussysteme; rtp-Seminar; pp. S69 to S70; Oct. 1983.
National Semiconductor; FACT Advanced CMOS Logic Databook; pp. 5-121 to 5-124; 1987.

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