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Surface tracker

  • US 7,382,266 B2
  • Filed: 06/12/2006
  • Issued: 06/03/2008
  • Est. Priority Date: 03/11/2004
  • Status: Active Grant
First Claim
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1. A method of tracking a particular field location, comprising the steps of:

  • burying a tracker at the particular field location, the tracker having an electronic marker;

    determining global positioning satellite (GPS) coordinates of the buried tracker using a GPS receiver located at the particular field location;

    recording a log entry indicative of the GPS coordinates;

    after said burying, said determining and said recording, establishing a vicinity of the tracker using the log entry; and

    locating the tracker by sensing the electronic marker at the vicinity of the tracker with an electronic receiver.

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