Patents by Inventor Jean Hubertus Josef Lorteije

Jean Hubertus Josef Lorteije 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).

  • Column electrode drive for gas discharge display device
    Patent number: 4121256
    Abstract: A saving in column memory elements while preserving a stable display with a gas discharge television display device is obtained if a plurality of bits of the digital video information which is entered in the line trace period is passed from the line memory circuit to the relevant column electrode in the line blanking period while bypassing a column memory circuit. The display elements are excited only once during a line period at the beginning of the line period.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: October 17, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Jean Hubertus Josef Lorteije, Geert Warrink
  • Device for driving or energizing a display device
    Patent number: 3993991
    Abstract: A device for driving or energizing a display device in which an input signal varying stepwise or continuously in amplitude is converted into one or more output signals supplied to the display device by means of a semiconductor surface layer which can be controlled with a common gate electrode and preferably with an inversion layer which can be controlled in lateral extent.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: November 23, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Jean Hubertus Josef Lorteije, Maurice Vincent Whelan