IC card and data processing method therefor

Details IC card and data processing method therefor IC card and data processing method therefor

2006-03-28

2006-03-28

Frech, Karl D. (Department: 2876)

Registers

Records

Conductive

C711S115000

Reexamination Certificate

active

07017825

ABSTRACT:
Provided in a nonvolatile memory mounted in an IC card are a data block area201, for storing data to be held; a reserve block area202, for storing target data during a writing or reading process; and an address management area203, for storing address data that correlate logical addresses and physical addresses associated with the data block area201and the reserve block area202. In the writing process, data to be written is stored in the reserve block area202, and for updating, address data that correspond to the reserve block area202in the address management area203and address data that corresponds to the data block area201designated by a command are rewritten.

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