Patents by Inventor David Luman

David Luman 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).

  • Collaborative markup projection system
    Patent number: 7129934
    Abstract: A system including a data projector and a plurality of touch-sensitive input tablets enables multiple participants to collaborate in the creation and marking up of a projected drawing or image. A data projector receives user markup data entered on various touch-sensitive tablets and projects the markup data onto a display surface as part of a collaborative drawing or image.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: October 31, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Luman, David W. Magnuson
  • System and method for preventing comprehension of a printed document
    Publication number: 20050002053
    Abstract: A method directed to preventing comprehension of a printed document. The method comprises feeding the printed document into a device having a printing mechanism, and printing, with the printing mechanism of over at least a portion of the printed document to prevent comprehension of the printed document.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 6, 2005
    Inventors: Jack Meador, David Luman
  • Collaborative markup projection system
    Publication number: 20040150627
    Abstract: A system including a data projector and a plurality of touch-sensitive input tablets enables multiple participants to collaborate in the creation and marking up of a projected drawing or image. A data projector receives user markup data entered on various touch-sensitive tablets and projects the markup data onto a display surface as part of a collaborative drawing or image.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 5, 2004
    Inventors: David Luman, David W. Magnuson
  • Electronic device security
    Patent number: 6504480
    Abstract: A preferred embodiment of the present invention provides an electronic proximal security system comprising a master device including a first transmitter for communicating at least one device code, and a code processor. The system also comprises at least one slave device including a receiver for communicating the at least one device code, a code translator, and a slave controller for limiting access to functionality of the slave device responsive to the at least one device code transmitted from the master device.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: January 7, 2003
    Assignee: Hewlett-Packard Company
    Inventors: David Magnuson, David Luman