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Robert A. Erhardt

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  • Torrance, CA, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC BALLAST WITH DIMMING CIRCUIT
    • Publication number 20120200232
    • Publication date Aug 9, 2012
    • Koninklijke Philips Electronics N.V.
    • Robert A. Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Led Assembly and Module
    • Publication number 20080218095
    • Publication date Sep 11, 2008
    • Koninklijke Philips Electronics, N.V.
    • Robert A. Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Lamp Power Circuit Sensing Method And System
    • Publication number 20080067956
    • Publication date Mar 20, 2008
    • Koninklijke Philips Electronics, N.V.
    • Ching-Yao Hung
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Dual Mode Lighting Device
    • Publication number 20080036401
    • Publication date Feb 14, 2008
    • Koninklijke Philips Electronics, N.V.
    • Robert Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Digital addressable lighting interface translation method
    • Publication number 20070018783
    • Publication date Jan 25, 2007
    • Koninklijke Philips Electronics N.V.
    • Robert A. Erhardt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    System and method of automatic cycling control for HID lamps
    • Publication number 20030210000
    • Publication date Nov 13, 2003
    • Robert Alexander Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Open loop bi-level ballast control
    • Publication number 20030201733
    • Publication date Oct 30, 2003
    • Koninklijke Philips Electronics N.V.
    • Robert A. Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    High frequency electronic ballast
    • Publication number 20030127993
    • Publication date Jul 10, 2003
    • Robert A. Erhardt
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Light emitting diode driver
    • Publication number 20030122502
    • Publication date Jul 3, 2003
    • Bernd Clauberg
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    AUXILIARY LIGHTING SYSTEM FOR HIGH INTENSITY DISCHARGE LAMP
    • Publication number 20020195974
    • Publication date Dec 26, 2002
    • Koninklijke Philips Electronics N.V.
    • Robert Erhardt
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    System and method of automatic cycling control for HID lamps
    • Publication number 20020180384
    • Publication date Dec 5, 2002
    • Koninklijke Philips Electronics N.V.
    • Robert Alexander Erhardt
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC