Transmission-reception equipment for a bus system

Details Transmission-reception equipment for a bus system Transmission-reception equipment for a bus system

1987-12-11

1989-12-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

375 17, 375 7, 375 36, H04J 302

Patent

active

048887641

ABSTRACT:
Transmission-reception equipment for a bus system and for handling access collision of subscriber stations connected dc-free in a bus system preferably constructed with a shielded twisted-pair cable. The transmission-reception equipment of the subscriber stations at their transmission sides, has a difference bus transmitter unlocked for only a fraction of a bit time span and thereby outputting a difference voltage pulse of one the other operational sign but placed in a quiescent condition in the remaining part of every bit time span. At the reception side of the subscriber stations, two difference bus receivers are connected to the bus signal conductors, oppositely in comparison to one another, and a bi-stable RS flip-flop has its inputs connected to outputs of the difference bus receivers.

REFERENCES:
patent: 3671671 (1972-06-01), Watanabe
patent: 3980826 (1976-09-01), Widmer
patent: 4083005 (1978-04-01), Looschen
patent: 4282260 (1981-08-01), Flora
patent: 4380080 (1983-04-01), Rattingourd
patent: 4638311 (1987-01-01), Gerety
patent: 4710943 (1987-12-01), Duley
patent: 4719458 (1988-01-01), Miesterfeld et al.
"The D.sup.2 B a One Logical Wire Bus for Consumer Applications" IEEE Transactions on Consumer Electronics, vol. CE-27, Feb. 1981, No. 1, pp. 102-116.
"Ultra-Low Cost Network for Personal Computers", BYTE Publications, Inc., Oct. 1961, pp. 50-60.

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