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Electronic identification system employing a data bearing identification card

  • US RE29,057 E
  • Filed: 12/16/1974
  • Issued: 11/30/1976
  • Est. Priority Date: 02/23/1961
  • Status: Expired due to Term
First Claim
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1. An electronic identification system employing a data bearing identification card comprising:

  • means for receiving said card;

    means for sensing the data on said card;

    keyboard means for accepting a manually entered identification code;

    data scrambling means connected to said sensing means for modifying the data sensed from said card in order to affect coincidence between said sensed data and said identification code;

    means for comparing said manually entered identification code with the modified data sensed from said card; and

    means operable by said comparing means when said modified data coincides with said identification code to cause said receiving means to release said received card.

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