Patents by Inventor Wilhelmus Johannes Robertus Van Lier

Wilhelmus Johannes Robertus Van Lier 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).

  • Driver Circuit Arrangement
    Publication number: 20080272743
    Abstract: The invention relates to a driver circuit arrangement (1?) for driving a plurality of individually switchable electrical subsystems (A?, B?, C?), such as (arrangements of) LEDs (9-A, 9-B, 9-C). Each subsystem has at least one energy storage device (10-A, 10-B, 10-C), such that when the subsystem is disconnected from the main source (7) of electrical energy, the energy storage device can supply energy to the device(s) of the subsystem. By furthermore providing at least one subswitch (13-A, 13-B, 13-C) in the subsystem, between the energy storage device and an electrical device of the subsystem, control over the device is still possible when the subsystem is disconnected form the main source of electrical energy.
    Type: Application
    Filed: October 2, 2006
    Publication date: November 6, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Bernd Ackermann, Henricus Petronella Maria Derckx, Wilhelmus Johannes Robertus Van Lier, Eberhard Waffenschmidt