Patents by Inventor David Kay Campbell

David Kay Campbell 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).

  • System and method for image capture device
    Patent number: 8558943
    Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 15, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Donald J. Stavely, Mark E. Wanger, James Anderson, Casey Miller, David Kay Campbell
  • System And Method For Image Capture Device
    Publication number: 20130002940
    Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 3, 2013
    Inventors: Donald J. Stavely, Mark E. Wanger, James Anderson, Casey Miller, David Kay Campbell
  • System and method for image capture device
    Patent number: 8289399
    Abstract: A system and method for stabilization of an image capture device are disclosed. Also disclosed are a system and method for autofocus of an image capture device.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: October 16, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Donald J. Stavely, Mark E. Wanger, James Anderson, Casey Miller, David Kay Campbell
  • Method and apparatus for color non-uniformity correction in a digital camera
    Patent number: 7233352
    Abstract: Reducing or eliminated color-dependent vignetting in a digital camera includes: providing, for each color that said camera can image, a raw array of data corresponding to a desired scene; and changing the raw arrays such that the array for each color exhibits substantially the same amount of vignetting so as to reduce color-dependent vignetting in a composite image based upon each of the changed arrays.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: June 19, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin J Matherson, Robert E Sobol, Christopher A Whitman, David Kay Campbell
  • Shutter delay calibration method and apparatus
    Publication number: 20040218087
    Abstract: A lens/shutter/sensor assembly or complete camera makes a photographic exposure, targeting a target exposure time, of a stable light source. The exposure time is initiated electronically and terminated using an electromechanical shutter. A nominal value for the shutter delay is assumed. The exposure level of this first exposure is recorded. A second photographic exposure is made in the same way of the same light source, but targeting a different target exposure time. The exposure levels of the two photographic exposures, the target exposure times, and the assumed value of the shutter delay are used to compute the actual shutter delay. The actual shutter delay may optionally be associated with the shutter.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 4, 2004
    Inventors: Thomas Jazbutis, David Kay Campbell, Gregory V. Hofer
  • Method and apparatus for color non-uniformity correction in a digital camera
    Publication number: 20030234872
    Abstract: Reducing or eliminated color-dependent vignetting in a digital camera includes: providing, for each color that said camera can image, a raw array of data corresponding to a desired scene; and changing the raw arrays such that the array for each color exhibits substantially the same amount of vignetting so as to reduce color-dependent vignetting in a composite image based upon each of the changed arrays.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventors: Kevin J. Matherson, Robert E. Sobol, Christopher A. Whitman, David Kay Campbell
  • Method and apparatus for color non-uniformity correction in a digital camera
    Publication number: 20030234879
    Abstract: Reducing or eliminated color-dependent vignetting in a digital camera includes: providing a raw array of data corresponding to an image of a scene for each color that the camera can image; and adjusting the raw arrays such that the array for each color exhibits substantially the same amount of vignetting.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventors: Christopher A. Whitman, Kevin J. Matherson, Robert E. Sobol, David Kay Campbell