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Integrated circuit for identifying an item via a serial port

  • US 6,122,704 A
  • Filed: 03/14/1995
  • Issued: 09/19/2000
  • Est. Priority Date: 05/15/1989
  • Status: Expired due to Term
First Claim
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1. A die-sized electronic label for identifying and storing information about an object to which said die-sized electronic label is attached, said die-sized electronic label comprising:

  • a silicon die having only a first electrical contact and a second electrical contact for contacting external circuitry;

    bidirectional series port circuitry in said silicon die connected to said first electrical contact and to said second electrical contact;

    an identification circuit in said silicon die which can uniquely identify said die-sized electronic label and which can communicate via said bidirectional serial port.

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