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Personal item monitor using radio frequency identification

  • US 20050148339A1
  • Filed: 01/06/2004
  • Published: 07/07/2005
  • Est. Priority Date: 01/06/2004
  • Status: Active Grant
First Claim
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1. A personal item monitoring system comprising:

  • a monitor having a transmitter and a receiver located therein; and

    at least one radio frequency identification tag adapted to be coupled to a personal item;

    wherein said monitor emits a radio frequency signal received by said radio frequency identification tag, and said radio frequency identification tag emits a responding signal if within a detection range; and

    said monitor alerts a user if said at least one radio frequency identification tag leaves said detection range.

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