Patents Assigned to National Science Foundation
  • Graphic system apparatus utilizing plasma display/memory devices with direct electrical read-out
    Patent number: 3946381
    Abstract: Method and apparatus for electrically interrogating gaseous discharge cells in a plasma panel to sense the state of said cells by selectively coupling a sensing impedance element for detecting the presence of a discharge current associated with cells having information. Graphic systems using electrical interrogation of gaseous discharge cells in a plasma panel to provide image editing and/or image transfer.
    Type: Grant
    Filed: May 14, 1973
    Date of Patent: March 23, 1976
    Assignee: National Science Foundation
    Inventors: Roger L. Johnson, Larry F. Weber