Patents by Inventor Martin Guido Middelhoek

Martin Guido Middelhoek 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).

  • Method and apparatus for measuring an entity of a magnetic field by using a hall plate, an excitation signal and a detection signal
    Patent number: 7345476
    Abstract: Method and apparatus for measuring an entity of a magnetic field using a Hall sensor which is provided with at least one Hall plate which has a group of two pairs of terminals located at a distance from one another, an excitation signal supplied from a source to one pair of terminals and a detection signal, which forms a representation of the entity, which is tapped off from the other pair of terminals by a processing circuit. The source is a voltage source of which an impedance is negligible for use of the sensor, and the processing circuit has a negligible input impedance for tapping off me detection signal as a short-circuit current.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: March 18, 2008
    Assignee: Systematic Design Holding B.V.
    Inventors: Martin Guido Middelhoek, George Pieter Reitsma