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:
Mar. 24, 2009

Filed:

May. 02, 2007
Applicants:

Bum-lai Cho, Suwon-si, KR;

Moon-young Cha, Anyang-si, KR;

Inventors:

Bum-Lai Cho, Suwon-si, KR;

Moon-Young Cha, Anyang-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An illumination sensing device for a portable terminal is disclosed. The illumination sensing device includes a housing having a sensor hole extending through a side of the housing, a printed circuit board in the housing and connected to a backlight unit, an illumination sensor coupled with the printed circuit board and disposed in the sensor hole, and an optical guide disposed in the sensor hole and facing the illumination sensor. The illumination sensor senses light introduced through the optical guide from outside the housing, and the backlight unit is operated based on the light sensed by the illumination sensor.


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