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:
Jul. 02, 2002
Filed:
Sep. 22, 2000
Werner Diez, Wolfschlugen, DE;
Christine Weber, Esslingen, DE;
Reitter & Schefenacker GmbH & Co. KG, Esslingen, DE;
Abstract
In a method for controlling illumination devices of motor vehicles, wherein the illumination devices are correlated with different functional areas of a light assembly and are supplied with current, the illumination devices are cycled with a rated current and the brightness level of the illumination devices are adjusted with a pulse width modulated signal. A device for performing the method has an electrical power source and illumination devices correlated with at least two functional areas and connected to the electrical power source. Actuating elements are provided for activating the illumination devices. At least one microprocessor is provided, wherein the actuating elements are connected to the at least one microprocessor, wherein the at least one microprocessor converts signals emitted by the actuating elements into pulse width modulated signals supplied to output terminals of the at least one microprocessor. Driver stages are connected to the output terminals of the at least one microprocessor and the illumination devices and configured to transmit the pulse width modulated signals to the illumination devices.