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Encoding and decoding method and system

  • US 7,075,434 B2
  • Filed: 09/22/2003
  • Issued: 07/11/2006
  • Est. Priority Date: 09/22/2003
  • Status: Expired due to Fees
First Claim
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1. A method for encoding a tag with an n-bit binary code (n>

  • 1) the method comprising;

    (a) associating with the tag one or more predetermined frequency sources that produce known different respective characteristic frequencies the one or more predetermined frequency sources being other, than an integrated circuit; and

    (b) associating with each of said characteristic. frequencies a known unique position in the n-bit binary code.

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