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. 19, 2009
Filed:
Dec. 22, 2003
Applicant:
Timo T. Lindqvist, Teijo, FI;
Inventor:
Timo T. Lindqvist, Teijo, FI;
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lighting control arrangement controls the user interface lighting in a portable electronic device. An output of the lighting control arrangement selectively provides lighting intensity commands to a lighting controller. Each of the lighting intensity commands indicates one of certain basic lighting intensity levels. A level selector repeatedly changes, at a frequency that is higher than an integration frequency of a human visual system, the lighting intensity command to be provided at said output.