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System and method for tracking inventory

  • US 8,774,960 B2
  • Filed: 10/22/2012
  • Issued: 07/08/2014
  • Est. Priority Date: 11/26/2002
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a plurality of spaced-apart substantially-overhead references having predetermined positions in a structure;

    a vehicle in the structure including a recognition device configured to observe the spaced-apart substantially-overhead references; and

    a computing system for receiving the observed information regarding the spaced-apart substantially-overhead references from the recognition device and then calculate a vehicle position by comparing the observed information against the predetermined positions to determine vehicle position.

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