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Proximity card with incorporated pin code protection

  • US 6,340,116 B1
  • Filed: 09/16/1999
  • Issued: 01/22/2002
  • Est. Priority Date: 09/16/1999
  • Status: Expired due to Term
First Claim
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1. An electronic identification system for transmitting identification data from a proximity device to a reader, comprising in combination:

  • a data source in said proximity device;

    a data receiver in said reader;

    said proximity device and said reader coupled by proximity antenna means to each other;

    means for entering personal identification numbers into said proximity device;

    first comparison means within said proximity device to compare said personal identification numbers with first reference identification numbers stored in said proximity device;

    means to enable data transmission of additional data from said proximity device to said data receiver on said comparison means showing equality in said personal identification numbers and said stored reference identification numbers; and

    means to inhibit data transmission if said comparison means shows inequality of said personal identification numbers and said stored reference identification numbers.

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