Patents by Inventor Daniel Dementhon

Daniel Dementhon 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).

  • Device using a camera and light polarization for the remote displacement of a cursor on a display
    Patent number: 7542072
    Abstract: A system and method is provided for imaging a screen of a display device, including filtering light emitted or reflected from the screen and a background region in proximity to the screen using first and second polarizing angles; sensing the filtered light; and generating at least one image set corresponding to the sensed filtered light. Each image set includes at least one image having a first plurality of pixels corresponding to the sensed filtered light using the first polarizing angle and a second plurality of pixels corresponding to the sensed filtered light using the second polarizing angle.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: June 2, 2009
    Assignee: The University of Maryland
    Inventor: Daniel DeMenthon
  • Device using a camera and light polarization for the remote displacement of a cursor on a display
    Publication number: 20060023111
    Abstract: A system and method is provided for imaging a screen of a display device, including filtering light emitted or reflected from the screen and a background region in proximity to the screen using first and second polarizing angles; sensing the filtered light; and generating at least one image set corresponding to the sensed filtered light. Each image set includes at least one image having a first plurality of pixels corresponding to the sensed filtered light using the first polarizing angle and a second plurality of pixels corresponding to the sensed filtered light using the second polarizing angle.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 2, 2006
    Inventor: Daniel DeMenthon
  • Wave energy converter
    Patent number: 4412417
    Abstract: An improved rotational buoyant mass for wave energy conversion apparatus is disclosed. The rotational buoyant mass comprises at least one pair of helical volumes mounted for rotation about a common axis. The helical volumes are rotationally displaced with respect to one another about the common axis. The improved rotational buoyant mass may include multiple pairs of helices, the helices of respective pairs being displaced with respect to one another.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: November 1, 1983
    Assignee: Tracor Hydronautics, Incorporated
    Inventor: Daniel Dementhon