Circuit arrangement for serial data transmission between a plura

Details Circuit arrangement for serial data transmission between a plura Circuit arrangement for serial data transmission between a plura

1987-02-17

1989-02-21

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 36, H04L 2502

Patent

active

048072494

ABSTRACT:
A circuit arrangement is provided for serial data transmission between a plurality of subscriber stations via a data bus, the circuit arrangement comprising data transmitters that are in a high-impedance state in the passive condition and in a low-impedance state in the active condition. In such a circuit arrangement, a mutual control of the subscriber stations occurs by way of the data bus without the assistance of additional control lines. This is achieved with the assistance of a recognition circuit having two data receivers in fail-safe circuitry connected in an antiparallel manner at their inputs and having their outputs connected to a logic element. The control arrangement is particularly suited for utilization in remote control devices.

REFERENCES:
patent: 4380080 (1983-04-01), Rattlingourd
patent: 4398298 (1983-08-01), Egmond et al.
patent: 4479228 (1984-10-01), Crane
patent: 4519074 (1985-05-01), Basile
patent: 4649548 (1987-03-01), Crane
"Data Transmission Is Faster With Ternary Coding," Bruins, Electronics vol. 47, No. 11, May 30, 1974 (pp. 119-120).
"IC-Reihe fur RS-485-und RS-422-Anwedungen," Elektronik, vol. 10, May 17, 1985, p. 131.
"RS422 and Beyond," Burgess, Electronic Engineering, Oct. 1981, pp. 81-85.
"Line Drivers Are Not Limited To Computer Systems," Pippenger, Electronic Design News, vol. 17, No. 6, Mar. 1972, pp. 44-46.
"Interface-Standard RS-485 Jetzt Praktisch Anwendbar," Elekotronik, vol. 6, Mar. 23, 1984, p. 24.
"Bus-fahige Schnittstelle Nach RS 485/422," Elektronik, vol. 12, Jun. 15, 1984, pp. 97-98.

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