Patents by Inventor Frank J. Schuurmans

Frank J. Schuurmans 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).

  • LED-based white-light backlighting for electronic displays
    Patent number: 6753661
    Abstract: Apparatus and method for backlighting an electronic display with LEDs to control luminosity, radiometric power, and color levels by means of feedback control through a microprocessor, thereby maintaining white backlight at substantially constant levels, which can be chosen by an operator.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: June 22, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Subramanian Muthu, Frank J. Schuurmans, Chin Chang, James Gaines
  • LED-based white-light backlighting for electronic displays
    Publication number: 20030230991
    Abstract: Apparatus and method for backlighting an electronic display with LEDs to control luminosity, radiometric power, and color levels by means of feedback control through a microprocessor, thereby maintaining white backlight at substantially constant levels, which can be chosen by an operator.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 18, 2003
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Subramanian Muthu, Frank J. Schuurmans, Chin Chang, James Gaines