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Optical transponder containing identification tag

  • US 20050258939A1
  • Filed: 02/11/2005
  • Published: 11/24/2005
  • Est. Priority Date: 02/13/2004
  • Status: Active Grant
First Claim
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1. An identification tag comprising:

  • a substrate;

    an information processing mechanism on said substrate and containing a datum;

    an interrogating signal receiver for receiving an energy input outside the radiofrequency range; and

    an output signal transmitter for communicating said datum external to said substrate as an emission outside the radiofrequency range.

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