Patents by Inventor Jason E Yost

Jason E Yost has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for producing calibration data for a digital camera
    Patent number: 7151560
    Abstract: Producing calibration data (to remove vignetting, e.g., color-dependent vignetting) for a digital camera includes: arranging, in front of the camera, a white reference surface that is to be imaged; capturing, via the camera, a characteristic array of data corresponding to an image of the reference surface for each color that the camera can image; and manipulating each characteristic array to reduce a total amount of data representing the reference image.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: December 19, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin J Matherson, Christopher A Whitman, Jason E Yost
  • Method and apparatus for detecting the presence of artificial illumination in a scene
    Patent number: 7009642
    Abstract: A method and apparatus for detecting the presence of artificial illumination in a scene powered by alternating current by sampling the light in a scene at a periodic rate.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: March 7, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gregory V Hofer, Jason E Yost
  • Method and apparatus for auto-exposure control in the presence of artificial illumination
    Patent number: 6989860
    Abstract: A method and apparatus is disclosed for auto-exposure control in a scene under artificial illumination that synchronizes the exposure control algorithm and final image capture with the intensity variations in the artificial illumination.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: January 24, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gregory V Hofer, Jason E Yost
  • Color correction for a scene based on the detection of artificial illumination in the scene
    Patent number: 6865293
    Abstract: A method and apparatus for color correcting for the presence, in a scene, of artificial illumination that is powered by alternating current is disclosed. By sampling the light in a scene at a periodic rate the presence of artificial illumination can be detected and then color corrected.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: March 8, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert E. Sobol, Gregory V Hofer, Jason E Yost