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:
Nov. 10, 2009
Filed:
Jan. 04, 2007
David Shank, Hersey, MI (US);
Edward Cox, Marion, MI (US);
John Washeleski, Cadillac, MI (US);
Nartron Corporation, Reed City, MI (US);
Abstract
One embodiment of the present application includes a vehicle illumination system. The vehicle illumination system comprises an input keypad configured to receive at least one input provided by a user. The vehicle illumination system also comprises a controller configured to receive input commands provided by the input keypad and to sequentially control a state of a plurality of output device drivers corresponding to a respective plurality of vehicle lamps. The vehicle illumination system further comprises overvoltage protection circuitry configured to continuously monitor an electrical signal associated with each of the plurality of output device drivers relative to respective over-current condition thresholds and a summation over-current condition threshold. The summation over-current threshold can be less than a sum of the respective over-current condition thresholds associated with each of the plurality of outputs.