Optics: image projectors – Distortion compensation – For projection axis inclined to screen
Reexamination Certificate
2006-02-14
2006-02-14
Mahonry, Christopher (Department: 2851)
Optics: image projectors
Distortion compensation
For projection axis inclined to screen
Reexamination Certificate
active
06997563
ABSTRACT:
A projector determines horizontal and vertical tilt angles. Using the tilt angles and the inherent properties of the projector, keystone correction corner points for the image can be computed. The keystone correction corner points can be used to perform keystone correction on the image.
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Teng Tianbing Brian
Wang Zhongde
Mahonry Christopher
Marger & Johnson & McCollom, P.C.
Pixelworks, Inc.
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