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:
Jun. 21, 2011
Filed:
Dec. 21, 2006
Pyeong-woo Lee, Chungcheongbuk-do, KR;
Chae-sung Kim, Chungcheongbuk-do, KR;
Jeong-guk Lee, Chungcheongbuk-do, KR;
Pyeong-Woo Lee, Chungcheongbuk-do, KR;
Chae-Sung Kim, Chungcheongbuk-do, KR;
Jeong-Guk Lee, Chungcheongbuk-do, KR;
Crosstek Capital, LLC, Wilmington, DE (US);
Abstract
A circuit includes a luminance average value output unit for extracting luminance values from pixel data of the first and the second frames to generate first luminance average values for pixel lines of the first frame and second luminance average values for pixel lines of the second frame, a flicker curve generating unit for subtracting the second luminance average values from the first luminance average values, thereby generating a flicker curve, and a flicker detecting unit for extracting a plurality of local minimum points from the flicker curve, calculating a distance between each two neighboring local minimum points of the extracted local minimum points, and determining whether the flicker is present based on the distances and the frequency numbers of the distances.