Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 5, 2010
Patent Application Number
10832488
Date Filed
April 26, 2004
Patent Primary Examiner
Patent abstract
The invention relates to an automatic keystone correction system and method. The system includes an interface to display a pattern on a projection surface and a controller to distort image data responsive to the pattern. The pattern includes a plurality of polygons, each with a predetermined shape. Each polygon corresponds to a particular system rotation angle. The controller distorts the image data responsive to the rotation angle. A user interacts with the interface to identify a particular polygon that, when projected on a projection surface, has a predetermined shape.
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