Patents Assigned to France Telecom Etablissement Autonome de Droit Public (Center National D'Etudes des Telecommunications)
  • Sample and hold circuit for a liquid crystal display screen
    Patent number: 5252956
    Abstract: Sample and hold circuit for a liquid crystal display screen. The circuit comprises two stages, the first with switched capacitance the second with an amplifier device. Application to the control of liquid crystal display screens.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: October 12, 1993
    Assignee: France Telecom Etablissement Autonome de Droit Public (Center National D'Etudes des Telecommunications)
    Inventors: Patrice Senn, Alan Lelah, Gilbert Martel