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:
Nov. 05, 2013

Filed:

May. 28, 2010
Applicant:

Fu-yuan Hsueh, Taoyuan County, TW;

Inventor:

Fu-Yuan Hsueh, Taoyuan County, TW;

Assignee:

Chimei Innolux Corporation, Miao-Li County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/18 (2006.01); H04N 5/58 (2006.01);
U.S. Cl.
CPC ...
Abstract

A sensing device is provided to sense light and generates a sensing output signal indicating intensity of the light. The sensing device includes a photo element, a comparison circuit, and a logic circuit. The photo element senses the light and generates a current signal at a first node. The comparison circuit is coupled to the first node and receives the current signal. The comparison circuit includes a filter for filtering a high-frequency component on the current signal, and the comparison circuit generates a result signal according to the filtered current signal. The logic circuit receives the result signal and performs a logic operation to the result signal to generate the sensing output signal.


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