Patents by Inventor Rudolf Johan Vullers

Rudolf Johan Vullers 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).

  • Control means and method of controlling a current through a coil
    Publication number: 20050259346
    Abstract: An electronic circuit comprising means (CMNS) for controlling a current (IL) through a coil (L) for the generation of a magnetic field (H). The means (CMNS) comprise means (DMNS) for the determination of a parameter which is a measure for the value of the resistance (RL) of the coil (L). During operation the maximum absolute value of the current (IL) is decreased when the parameter exceeds a certain limit.
    Type: Application
    Filed: June 13, 2003
    Publication date: November 24, 2005
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Rudolf Johan Vullers, Willem Geven, Coen Theodorus Hubertus Liedenbaum