Patents by Inventor Mark L. Nagel

Mark L. Nagel 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).

  • PCI card for receiving a GPS signal
    Patent number: 6018784
    Abstract: A peripheral component interconnect (PCI) global positioning system (GPS) card for receiving a GPS signal. In a first embodiment the PCI card includes a GPS downconverter. In a second embodiment the PCI card including the GPS downconverter is integrated into a personal computer for correlating a GPS signal and computing a GPS location. In a third embodiment the PCI card includes a GPS downconverter and a GPS correlator. In a fourth embodiment the PCI card including the GPS downconverter and the GPS correlator is integrated into a personal computer for computing a GPS location.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: January 25, 2000
    Assignee: Trimble Navigation Limited
    Inventors: David R. Gildea, Mark L. Nagel
  • PCI card for receiving a GPS signal
    Patent number: 5832247
    Abstract: A peripheral component interconnect (PCI) global positioning system (GPS) card for receiving a GPS signal. In a first embodiment the PCI card includes a GPS downconverter. In a second embodiment the PCI card including the GPS downconverter is integrated into a personal computer for correlating a GPS signal and computing a GPS location. In a third embodiment the PCI card includes a GPS downconverter and a GPS correlator. In a fourth embodiment the PCI card including the GPS downconverter and the GPS correlator is integrated into a personal computer for computing a GPS location.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: November 3, 1998
    Assignee: Trimble Navigation Limited
    Inventors: David R. Gildea, Mark L. Nagel