High impedance transponder with improved backscatter modulator for electronic identification system

  • US 6,054,925 A
  • Filed: 08/24/1998
  • Issued: 04/25/2000
  • Est. Priority Date: 08/27/1997
  • Status: Expired due to Term
First Claim
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1. A transponder for an electronic identification system including an input connected to transponder circuitry, the transponder being characterized in that an input impedance at the input thereof is at least 400Ω

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