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Position and time-at-position logging system

  • US 5,919,239 A
  • Filed: 06/28/1996
  • Issued: 07/06/1999
  • Est. Priority Date: 06/28/1996
  • Status: Expired due to Term
First Claim
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1. A time and position logging device comprising:

  • a receiver for receiving radio signals transmitted from a plurality of earth orbiting satellites;

    a processor for processing the radio signals and determining therefrom a position of said device in global coordinates and associated time information corresponding to a time at which said device resides at said position;

    memory for storing a plurality of sets of said global coordinates and associated time information; and

    means responsive to a data capture command from an external source at a different geographical location from said device for logging the current values of said global coordinates and associated time information in said memory for later downloading to said external source.

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