Patents by Inventor Charles Boynton

Charles Boynton 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).

  • Method and apparatus for utilizing blanking on both zero setup and pedestal setup display monitors with a conventional computer system
    Patent number: 5334998
    Abstract: In a computer system having a frame buffer, apparatus for providing an overlay for the frame buffer, and a digital-to-analog converter for furnishing analog signals from the frame buffer to a pedestal setup display monitor, the digital-to-analog converter including apparatus for furnishing a blank level substantially below the lowest level of the analog signal desired to be visible on the monitor during retrace periods when used with a pedestal setup display monitor, the improvement including apparatus for allowing the system to utilize zero setup display monitors including apparatus for disabling the apparatus for furnishing a blank level when the computer system is used with a zero setup display monitor, and apparatus for causing the apparatus for providing an overlay for the frame buffer to furnish signals indicating a black level during retrace periods when the computer system is used with a zero setup display monitor.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: August 2, 1994
    Assignee: Sun Microsystems, Inc.
    Inventors: Curtis Priem, Charles Boynton