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:
Apr. 12, 2011
Filed:
Nov. 19, 2004
Applicants:
Uli Joos, Nonnenhorn, DE;
Jochen Zwick, Markdorf, DE;
Nicolai Jeutner, Fürth, DE;
Inventors:
Assignee:
Conti Temic Microelectronic, GmbH, Nuremberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The function of a lamp circuit is tested by measuring the current and voltage. A resistance value is taken into account which is specified as a polynomial of at least the 1st order depending on the effective measured voltage on the lamp circuit. The parameters of the polynomial are determined by a quantity of measurements which correspond to the order of the polynomial, under operating conditions which are known to differ, and the specific resistance value or a value derived from it are compared with a specified value.