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.

Date of Patent:
Jan. 14, 2003

Filed:

Dec. 29, 2000
Applicant:
Inventors:

Paul F. L. Weindorf, Novi, MI (US);

Gregory John Milne, South Lyon, MI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 1/00 ; G02F 1/17 ; G05B 3/900 ;
U.S. Cl.
CPC ...
G08B 1/00 ; G02F 1/17 ; G05B 3/900 ;
Abstract

According to the system and the method of the present invention, a display's visibility is maintained depending on lighting conditions that are sensed by an ambient light sensor ( ). Logic ( ) is applied to the output of the light sensor ( ) and in conjunction with a headlight status indicator ( ) to determine whether daytime (D) or nighttime (N) lighting condition exists and to determine a brightness level ( ) to be commanded to the display. The logic ( ) of the present invention maintains a visible display even in situations where a vehicle's headlights are active during daylight lighting conditions.


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