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Personal identification system

  • US 5,053,608 A
  • Filed: 06/04/1990
  • Issued: 10/01/1991
  • Est. Priority Date: 10/02/1987
  • Status: Expired due to Fees
First Claim
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1. A personal identification system comprisinga card having a first recording means for permanently storing a first singularity which is unique to the authorized user of the card;

  • a card reader;

    a second recording means located on either the card or the card reader for temporarily recording a second singularity;

    wherein said card reader further includes comparison means for comparing said first and second singularities and indicator means for indicating either a positive or negative result of said comparison means;

    wherein said second recording means further comprises a plurality of recording areas, each of said recording areas capable of temporarily recording said second singularity upon presentation thereof, andsaid indicator means will not indicate a positive result from at least one but not all of said recording areas.

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