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    • 2. 发明授权
    • IC card and data processing method therefor
    • IC卡及其数据处理方法
    • US07017825B2
    • 2006-03-28
    • US10316122
    • 2002-12-11
    • Mitsuyoshi OhyaShinichi Tokumitsu
    • Mitsuyoshi OhyaShinichi Tokumitsu
    • G06K19/06G06F12/00
    • G07F7/1008G06F21/77G06F21/78G06Q20/341G06Q20/3576
    • Provided in a nonvolatile memory mounted in an IC card are a data block area 201, for storing data to be held; a reserve block area 202, for storing target data during a writing or reading process; and an address management area 203, for storing address data that correlate logical addresses and physical addresses associated with the data block area 201 and the reserve block area 202. In the writing process, data to be written is stored in the reserve block area 202, and for updating, address data that correspond to the reserve block area 202 in the address management area 203 and address data that corresponds to the data block area 201 designated by a command are rewritten.
    • 在安装在IC卡中的非易失性存储器中设置有用于存储要保持的数据的数据块区域201; 保留块区域202,用于在写入或读取过程期间存储目标数据; 以及地址管理区域203,用于存储将与数据块区域201和预留块区域202相关联的逻辑地址和物理地址相关联的地址数据。 在写入处理中,要写入的数据被存储在保留块区域202中,并且用于更新与地址管理区域203中的保留块区域202相对应的地址数据和与指定的数据块区域201相对应的地址数据 通过命令重写。