Removable mother/daughter peripheral card

  • US 7,137,011 B1
  • Filed: 01/15/2002
  • Issued: 11/14/2006
  • Est. Priority Date: 09/01/1993
  • Status: Expired due to Fees
First Claim
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1. A method of storing user data on and retrieving user data from a non-volatile memory card, comprising:

  • encoding the user data,storing both the encoded user data and information useful to decode the encoded user data on the memory card,thereafter reading both the encoded user data and the decoding information from the memory card, anddecoding the read encoded user data by use of the decoding information read from the memory card, thereby to obtain the user data,wherein encoding the user data includes encrypting the user data, and the decoding information stored on the memory card includes a decryption algorithm.

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