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:
Apr. 27, 2010
Filed:
Sep. 15, 2006
Tianbing Brian Teng, Beaverton, OR (US);
Tianbing Brian Teng, Beaverton, OR (US);
Pixelworks, Inc., Tualatin, OR (US);
Abstract
I describe and claim a system and method for improved keystone correction. The method comprising identifying input values associated with an image projected on the projection surface, the input values including one or more center-points on edges of a distorted projection of the image and including a plurality of corners within the distorted projection of the image, the corners corresponding to an undistorted projection of the image, determining one or more keystone scaling values responsive to the identifying, and predistorting the image responsive to the determining, the predistorted image exhibiting no distortion and aligning with the plurality of corners when projected on the projection surface.