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Memory card having a recessed portion with contacts connected to an access card

  • US 5,375,037 A
  • Filed: 12/28/1992
  • Issued: 12/20/1994
  • Est. Priority Date: 01/14/1992
  • Status: Expired due to Term
First Claim
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1. A computer memory and access card system comprising a memory card and a separate access card, both adapted to be inserted into a card reader;

  • said access card having a first set of electrical contacts;

    said memory card having memory, a first set of contacts located to make electrical contact with said first set of contacts of the access card when both cards are positioned in a card reader; and

    a second set of contacts to make contact with the card reader;

    wherein said memory card has a maximum thickness and portion of its main face of a reduced thickness, said access card has a thickness, which is approximately equal to the difference between said maximum thickness and said reduced thickness, and lateral dimensions to fit in said portion of said memory card, so that said two cards when so superimposed with the access card in said portion of said memory card and with said first sets of contacts together have an overall dimension to fit into and be accepted by the reader.

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