Patents by Inventor Daivd Holmgren

Daivd Holmgren 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).

  • Publication number: 20050077452
    Abstract: A camera-based touch system (50) includes a passive touch surface (60) and at least two cameras (63) associated surface. The at least two cameras (63) have overlapping fields of view (FOV) encompassing the touch surface. The at least two cameras (63) acquire images of the touch surface from different locations and generate image data. A processor (54) receives and processes image data generated by the at least two cameras to determine the location of the pointer relative to the touch surface when the pointer is captured in images acquired by the at least two cameras. Actual pointer contact with the touch surface sand pointer hover above the touch surface can be determined.
    Type: Application
    Filed: July 5, 2001
    Publication date: April 14, 2005
    Inventors: Gerald Morrison, Daivd Holmgren