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Electronic locating systems

  • US 6,057,756 A
  • Filed: 08/14/1998
  • Issued: 05/02/2000
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
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1. A method for item handling during transport comprising:

  • coding an item with a tag responsive to a predetermined electromagnetic signal, said tag being coded with a set of locations which define at least part of an intended route for transport of said item to an intended destination, said signal being chosen to identify at least one predetermined location that defines at least part of a route for transport of a tagged item to an intended destination;

    interrogating at least one spatial region associated with the at least one predetermined location using said signal; and

    periodically inventorying items in said at least one region to determine whether a tagged item within said region is on its intended route.

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