Patents by Inventor Steven C. Taetzsch

Steven C. Taetzsch 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).

  • Electronic pan tilt zoom video camera with adaptive edge sharpening filter
    Patent number: 7471320
    Abstract: An apparatus and a method is provided for enhancing a digital image comprised of pixels by adaptively sharpening the pixels and clipping the numerical values of the sharpened edge pixels so as to fall between the smallest unsharpened numerical value and the greatest unsharpened numerical value, respectively, of the pixels located within a neighborhood of the pixels. Pixels which are located on an edge are sharpened in the direction perpendicular to the edge. The threshold value used to ascertain the presence of an edge and sharpening parameter used to control the degree of sharpening can be adaptively controlled by the zoom ratio. The apparatus of the invention is particularly suited for an electronic set-top video camera.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: December 30, 2008
    Assignee: Polycom, Inc.
    Inventors: Kenneth W. Malkin, Larry K. Baxter, Steven C. Taetzsch, Daniel R. Phelps
  • Electronic pan tilt zoom video camera with adaptive edge sharpening filter
    Publication number: 20030193584
    Abstract: An apparatus and a method is provided for enhancing a digital image comprised of pixels by adaptively sharpening the pixels and clipping the numerical values of the sharpened edge pixels so as to fall between the smallest unsharpened numerical value and the greatest unsharpened numerical value, respectively, of the pixels located within a neighborhood of the pixels. Pixels which are located on an edge are sharpened in the direction perpendicular to the edge. The threshold value used to ascertain the presence of an edge and sharpening parameter used to control the degree of sharpening can be adaptively controlled by the zoom ratio. The apparatus of the invention is particularly suited for an electronic set-top video camera.
    Type: Application
    Filed: April 29, 2003
    Publication date: October 16, 2003
    Inventors: Kenneth W. Malkin, Larry K. Baxter, Steven C. Taetzsch, Daniel R. Phelps
  • Electronic pan tilt zoom video camera with adaptive edge sharpening filter
    Patent number: 6614474
    Abstract: An apparatus and a method is provided for enhancing a digital image comprised of pixels by adaptively sharpening the pixels and clipping the numerical values of the sharpened edge pixels so as to fall between the smallest unsharpened numerical value and the greatest unsharpened numerical value, respectively, of the pixels located within a neighborhood of the pixels. Pixels which are located on an edge are sharpened in the direction perpendicular to the edge. The threshold value used to ascertain the presence of an edge and sharpening parameter used to control the degree of sharpening can be adaptively controlled by the zoom ratio. The apparatus of the invention is particularly suited for an electronic set-top video camera.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: September 2, 2003
    Assignee: Polycom, Inc.
    Inventors: Kenneth W. Malkin, Larry K. Baxter, Steven C. Taetzsch, Daniel R. Phelps