Patents Assigned to Synrinx Innovations Limited
  • Touch sensitive cathode ray tube
    Patent number: 4689614
    Abstract: A cathode ray tube provided on the exterior of its screen with a layer of polymeric piezoelectric material, for example polyvinylidene fluoride. Localized changes in physical stress on the layer, such as by way of localized pressure of heating on the layer, create a charge region which produces alteration of a beam current of an electron beam when the beam scans over the region. This alteration is detected, as by a sensing loop, to produce a data input.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: August 25, 1987
    Assignee: Synrinx Innovations Limited
    Inventor: John S. Strachan