Patents by Inventor Vincent de Paul Humeau

Vincent de Paul Humeau 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).

  • Geometry and convergence correction for projection television apparatus
    Patent number: 5521646
    Abstract: A projection television apparatus has three monochromatic picture tubes disposed in a planar orientation defining a central picture tube and two outer picture tubes. Each of the picture tubes includes a deflection unit responsive to deflection currents and raster correction signals for vertical and horizontal deflection. A control circuit, including a signal generator, supplies vertical and horizontal raster correction signals formulated for the central picture tube to all three of the picture tubes and supplies additional vertical and horizontal raster correction signals formulated for the two outer picture tubes respectively to the two outer picture tubes, respectively. Conductive paths for the formulated for the central picture tube correction signals can include variable resistors for effecting small changes in signal amplitude.
    Type: Grant
    Filed: August 9, 1994
    Date of Patent: May 28, 1996
    Assignee: Deutsche Thomson-Brandt GmbH
    Inventors: Vincent de Paul Humeau, Gunter Gleim, Jacques Chauvin