Patents Examined by Christopher Mahonry
  • Keystone correction derived from the parameters of projectors
    Patent number: 6997563
    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.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: February 14, 2006
    Assignee: Pixelworks, Inc.
    Inventors: Zhongde Wang, Tianbing Brian Teng