Patents by Inventor Mark E. Swartz

Mark E. Swartz 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).

  • Automatic touch screen calibration method
    Patent number: 4710758
    Abstract: A method for automatically calibrating a touch screen used in conjunction with a graphic display is executed prior to every interactive session. Three points, defining perpendicular axes, are displayed and an operator is instructed to touch the touch screen at each of the points in succession. Coordinates for the three points output by the touch screen are checked for reasonableness and perpendicularity. If these checks are passed, a coordinate translation matrix is generated for converting touch screen coordinates into display coordinates.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: December 1, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: James M. Mussler, Mark E. Swartz