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Radio frequency identification device power-on reset management

  • US 7,872,566 B1
  • Filed: 12/27/2007
  • Issued: 01/18/2011
  • Est. Priority Date: 03/19/2007
  • Status: Active Grant
First Claim
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1. A radio frequency identification (RFID) tag, comprising:

  • an inlay;

    an antenna structure supported by the inlay;

    a processing circuit coupled to the antenna; and

    a power-on reset circuit coupled to the processing circuit, the power-on reset circuit comprising an independent current circuit to provide a current substantially independent of a supply voltage, a dependent current circuit to provide a current substantially dependent on the supply voltage, and an output circuit to provide a power-on reset indication based on a comparison between the current substantially dependent on the supply voltage and the current substantially independent of the supply voltage.

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