Data communication system

Details Data communication system Data communication system

1994-02-25

1997-04-01

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

361 58, 361 18, H02H 900

Patent

active

056172826

ABSTRACT:
A data communication system, particularly for motor vehicles, includes a bus system with transmission lines which connect terminal devices to a common node. A protective circuit is connected between the transmission lines and a reference potential such as ground. If the ground connection of one of the terminal devices becomes detached, this protective circuit allows communication among the remaining terminal devices. The protective circuit is simultaneously secured against destruction in case of a short circuit.

REFERENCES:
patent: 3983471 (1976-09-01), Itoh et al.
patent: 3983473 (1976-09-01), Sanderson
patent: 4758920 (1988-07-01), McCartney
patent: 4942571 (1990-07-01), Moller et al.
patent: 5130636 (1992-07-01), Kumar et al.
Philips Components Unternehmensbereich der Philips GmbH, "CAN Specification Version 1.2" (Sep. 1990), pp. 1-30.
International Organization for Standardization, "Road vehicles--Interchange of digital information--Controller Area Network (CAN) for high speed communication," (ISO/TC 22/SC3 N 608), (Jan. 1991) pp. 1-17, 49, 59, 60.

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