Patents by Inventor Charles Frederick Harrison

Charles Frederick Harrison 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 projector alignment
    Patent number: 7673995
    Abstract: A system for supporting a projector on a support structure relative to a projection surface includes a plurality of base members connectable with the support structure and having a position adjustable relative to the projection surface. The system also includes a base member calibration system for calibrating the base members to a predetermined position relative to the projection surface. The system also includes a plurality of foot members for supporting the projector. Each foot member has a position adjustable relative to the projector. The system further includes a projector calibration system for calibrating the projector to a predetermined position relative to the foot members. The projector calibrated to the predetermined position relative to the foot members is calibrated to the predetermined position relative to the projection surface when the foot members rest on the base members.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: March 9, 2010
    Assignee: Northrop Grumman Corporation
    Inventors: Charles Frederick Harrison, Bran Ferren, W. Daniel Hillis