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GPS based tracking system

  • US 20020057217A1
  • Filed: 06/22/2001
  • Published: 05/16/2002
  • Est. Priority Date: 06/23/2000
  • Status: Abandoned Application
First Claim
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1. An apparatus for tracking objects, comprising:

  • GPS receivers mounted in moving objects;

    sensors mounted in said moving objects;

    a set of one or more base stations;

    transmitters/receivers at said base stations;

    transmitters/receivers at said moving objects in communication with said transmitters/receivers at said base station;

    a GPS reference station in communication with one of said base stations for providing differential GPS information; and

    a production center in comrunication with said base stations.

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