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:
May. 22, 2018
Filed:
Oct. 10, 2013
Applicant:
Continental Automotive Gmbh, Hannover, DE;
Inventors:
Emil Kovatchev, Vienna, AT;
Christian Stoeger, Vienna, AT;
Assignee:
Continental Automotive GmbH, Hannover, DE;
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H01L 23/36 (2006.01); G01R 31/44 (2006.01);
U.S. Cl.
CPC ...
G01R 31/44 (2013.01); H01L 23/36 (2013.01); H05B 33/0893 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A method and a device for the diagnosis of faulty light emitting diodes in a string () formed of at least two light emitting diodes. The light emitting diodes () are divided into at least two groups and an electrical measured variable is determined for each group with respective measurement units. Differences between the measured variable and a reference value are established per group and, by way of a diagnosis unit that is connected to the measurement units, a defect of a light emitting diode is identified on the basis of the ratio of the differences in the groups and signaled.