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Wirelessly powered flexible tag

  • US 7,998,546 B2
  • Filed: 10/04/2006
  • Issued: 08/16/2011
  • Est. Priority Date: 11/21/2005
  • Status: Active Grant
First Claim
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1. A wirelessly powered flexible tag configured to be in contact with a substrate, comprising:

  • a coupling layer configured to couple said tag to said substrate;

    an electrical circuit disposed on said coupling layer and configured to interact wirelessly with an external stimulus;

    at least one electrode in operative association with said electrical circuit, wherein the electrode is disposed in the coupling layer, and configured to generate electrical energy or thermal energy, respectively, wherein the electrode and a surface of the coupling layer to be coupled to the substrate are substantially coplanar, andat least one recess formed in the coupling layer, wherein the at least one electrode is disposed in the recess;

    wherein upon wireless interaction with the external stimulus said tag is configured to induce an electrical response, a thermal response, or a combination of both in said substrate.

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