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:
Oct. 28, 2008
Filed:
Jul. 05, 2005
Zhongde Wang, Camas, WA (US);
Ashok Aravamudhan, Beaverton, OR (US);
Mike West, Portland, OR (US);
Dennis Morel, Lake Oswego, OR (US);
Zhongde Wang, Camas, WA (US);
Ashok Aravamudhan, Beaverton, OR (US);
Mike West, Portland, OR (US);
Dennis Morel, Lake Oswego, OR (US);
Pixelworks, Inc., Tualatin, OR (US);
Abstract
We describe a keystone correction system and method. A vertical scalar vertically scales an input image and stores the results to a line buffer. A horizontal scalar retrieves the stored results from the line buffer and horizontally scales the stored results using the relatively small number of lines from the line buffer. The system repeats the vertically scaling, storing, and horizontal scaling until it processes all input image lines.