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:
Dec. 24, 1996
Filed:
Dec. 14, 1994
Applicant:
Inventors:
Thomas Schneider, Markgroeningen, DE;
Stefan Grieser-Schmitz, Mainz, DE;
Michael Walther, Ludwigsburg, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ; G08B / ;
U.S. Cl.
CPC ...
324556 ; 324133 ; 324555 ; 340650 ;
Abstract
An indicating device for electric control units has a light-emitting diode together with at least two resistors placed between a supply voltage and ground. A control line extends from the control unit and is connected between the two resistors. The control unit controls the potential on the control line in such a manner that when a defect is recognized an indication is provided. An indication is also provided in the event of a short circuit between the control line and the supply voltage, as well as upon an interruption in the control line.