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System and method for determining freight container locations

  • US 20020070891A1
  • Filed: 05/16/2001
  • Published: 06/13/2002
  • Est. Priority Date: 12/10/1991
  • Status: Active Grant
First Claim
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1. A system for determining freight container locations in a freight yard comprising:

  • a plurality of remote receivers attachable to freight containers for intermittently receiving global positioning signals from the global positioning satellite system, each remote receiver including a transmitter;

    a base station;

    means for communicating data between said remote receiver transmitters and said base station, the base station including means for receiving global positioning data of a remote receiver from said communicating means and for displaying the location of said remote receiver in said freight yard.

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