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:
Feb. 12, 2013
Filed:
Sep. 21, 2009
Yu-mao Lin, Tainan, TW;
Chih-chia Kuo, Hsinchu County, TW;
Yu-Mao Lin, Tainan, TW;
Chih-Chia Kuo, Hsinchu County, TW;
NOVATEK Microelectronics Corp., Hsinchu Science Park, Hsin-Chu, TW;
Abstract
A text protection device for de-interlacing operation includes a pixel value difference calculation unit, a text detection unit and a vertical interpolation unit. The pixel value difference calculation unit is utilized for calculating pixel value differences of a plurality of pixels of a field according to a position of a target pixel being inserted into the field. The plurality of pixels forms a detection area corresponding to the target pixel. The text detection unit is utilized for determining whether the detection area includes a text stroke and determining whether the target pixel is located within a range of the text stroke to generate a text detection signal. The vertical interpolation unit performs a vertical interpolation operation to generate a pixel value of the target pixel according to the text detection signal.