Patents by Inventor Silverio A. Valdes

Silverio A. Valdes 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).

  • CRT Spot suppression circuit
    Patent number: 4340910
    Abstract: In a CRT system having a cathode coupled to a source of first potential voltage and a control grid biased negatively with respect to the cathode, means coupled between a source of second potential voltage and control grid for superimposing negative-going transitions in the second potential voltage upon the control grid so as to suppress the appearance of spots upon the face of the CRT subsequent to the de-energization of that system.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: July 20, 1982
    Assignee: GTE Sylvania Incorporated
    Inventor: Silverio A. Valdes