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:
Mar. 19, 2002
Filed:
Jun. 22, 1999
Chien-Hsiu Huang, Tainan Hsien, TW;
Silicon Integrated Systems Corp., Hsinchu, TW;
Abstract
A VGA to TV data transformation system uses a background-based adaptive flicker reduction method. Information in a picture displayed on a screen of a monitor is divided as graphic and video information. Graphic information which includes cursor, graphic data, and sub-picture of video data in video information is prone to flicker. A background-based adaptive flicker reduction is applied to pixels in regions containing graphic information. A current pixel and the adjacent pixels directly above and below the current pixel are used to compute Mean and Diff values. The background state of a current pixel is determined by comparing the Mean value with a threshold value. The background state, the Mean value and the Diff value are then used to select a flicker reduction mode that may be strong reduction, median reduction, mild reduction or no reduction. An anti-flicker pixel is generated according to the flicker reduction mode.