Patents by Inventor Dennis M. Urbon

Dennis M. Urbon 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).

  • Patent number: 6448949
    Abstract: A field emission display having an improved operational life. In one embodiment of the present invention, the field emission display comprises a plurality of row lines, a plurality of column lines, and a plurality of electron emissive elements disposed at intersections of the plurality of row lines and column lines, a column driver circuit, and a row driver circuit. The column driver circuit is coupled to drive column voltage signals over the plurality of column lines; and, the row driver circuit is coupled to activate and deactivate the plurality of row lines with row voltage signals. Significantly, according to the present invention, operational life of the field emission display is substantially extended when the electron emissive elements are intermittently reverse-biased by the column voltage signals and the row voltage signals. In another embodiment, the row driver circuit is responsive to a SLEEP signal.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 10, 2002
    Assignee: Candescent Technologies Corporation
    Inventors: Igor L. Maslennikov, Dennis M. Urbon, Christopher J. Spindt, Ronald L. Hansen, Christopher J. Curtin
  • Patent number: 6369784
    Abstract: A field emission display having an improved operational life. In one embodiment of the present invention, the field emission display comprises a plurality of row lines, a plurality of column lines, and a plurality of electron emissive elements disposed at intersections of the plurality of row lines and column lines, a column driver circuit, and a row driver circuit. The column driver circuit is coupled to drive column voltage signals over the plurality of column lines; and, the row driver circuit is coupled to activate and deactivate the plurality of row lines with row voltage signals. Significantly, according to the present invention, operational life of the field emission display is substantially extended when the electron emissive elements are intermittently reverse-biased by the column voltage signals and the row voltage signals. In another embodiment, the row driver circuit is responsive to a SLEEP signal.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: April 9, 2002
    Assignee: Candescent Intellectual Property Services, Inc.
    Inventors: Igor L. Maslennikov, Dennis M. Urbon, Christopher J. Spindt, Ronald L. Hansen, Christopher J. Curtin
  • Patent number: 6133893
    Abstract: A field emission display having an improved operational life. In one embodiment of the present invention, the field emission display comprises a plurality of row lines, a plurality of column lines, and a plurality of electron emissive elements disposed at intersections of the plurality of row lines and column lines, a column driver circuit, and a row driver circuit. The column driver circuit is coupled to drive column voltage signals over the plurality of column lines; and, the row driver circuit is coupled to activate and deactivate the plurality of row lines with row voltage signals. Significantly, according to the present invention, operational life of the field emission display is substantially extended when the electron emissive elements are intermittently reverse-biased by the column voltage signals and the row voltage signals. In another embodiment, the row driver circuit is responsive to a SLEEP signal.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: October 17, 2000
    Assignee: Candescent Technologies, Inc.
    Inventors: Igor L. Maslennikov, Dennis M. Urbon, Christopher J. Spindt, Ronald L. Hansen, Christopher J. Curtin