Patents by Inventor Willem Johannes Antonia Geven

Willem Johannes Antonia Geven 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
    Patent number: 7352522
    Abstract: Method of controlling a current through a coil (L) for the generation of a magnetic field (H) in which: a parameter is determined which is a measure for the value of the resistance (RL) of the coil (L), the current (IL) through the coil (L) is controlled by data (DS) delivered by a data control circuit (DSS), and a stop data signal (SPD) is delivered to the data control circuit (DSS) for (at least) temporarily stopping the control of the current (IL) when the parameter exceeds a certain limit.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: April 1, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Rudolf Johan Maria Vullers, Willem Johannes Antonia Geven
  • Control means and method of controlling a current through a coil
    Patent number: 7183887
    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: Grant
    Filed: June 13, 2003
    Date of Patent: February 27, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Rudolf Johan Maria Vullers, Willem Johannes Antonia Geven, Coen Theodorus Hubertus Fransiscus Liedenbaum