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IC card and data processing method therefor

  • US 20030106942A1
  • Filed: 12/11/2002
  • Published: 06/12/2003
  • Est. Priority Date: 12/11/2001
  • Status: Active Grant
First Claim
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1. An IC card comprising:

  • a memory having a data storage area for storing data to be held, a buffer area for storing write data during a writing process, and an address management area for storing address data for correlating logical addresses and physical addresses associated with said data storage area and said buffer area; and

    memory control means for storing in said buffer area, during a data writing process for said memory, write data that are transmitted with a command, and for rewriting, in said address management area, address data that correspond to said buffer area and address data that correspond to said data storage area designated by said command, so that said address management area can be updated.

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