Patents by Inventor Herman C. Fernhout

Herman C. Fernhout 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).

  • Patent number: 5334986
    Abstract: A device for determining the position of a vehicle comprises a GPS (Global Positioning System) receiver (6) which supplies vehicle position data at regular intervals on the basis of data received from satellites, a device (1) for dead-reckoning on the basis of the position data from the GPS receiver (6), a compass (2) and at least one wheel sensor (3), and a correction unit (4) which corrects the dead-reckoning values supplied at regular intervals by the dead-reckoning device (1) in dependence on comparison with road position coordinates read from a mass memory (5), notably with characteristic road position coordinates, and outputs the corrected values as vehicle position coordinates.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: August 2, 1994
    Assignee: U.S. Philips Corporation
    Inventor: Herman C. Fernhout