The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 1994
Filed:
May. 19, 1993
Cornelius Peter, Ottersweier, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A network interface, in particular for motor vehicles having at least two computers and having at least two bus lines ('0') includes by a monitoring circuit (100), which cooperates with an evaluation circuit to detect the operativeness of the bus lines and identify a faulty bus line and an emergency circuit (210,215) controlled by the monitoring circuit to connect the faulty bus line to an emergency potential. Even in the event of a short circuit, to the supply voltage U.sub.B or earth, of one of the bus lines connected to a terminating unit (OP1,R3; OP2,R4) or in the event of a defective driver stage (T10,T20) of a network substation connected to the bus lines, it is still possible to operate the comparator (K) of a receiver or signal evaluation circuit even with only one operational bus line. In this way, a particularly high operational reliability of the network interface is obtained.