发明名称 High-security IC card
摘要 An IC card device includes a card base, at least one integrated circuit disposed on the card base, and communication circuitry disposed on the card base and coupled to the at least one integrated circuit, for transferring signals between the at least one integrated circuit and an external device. The at least one integrated circuit includes a first reloadable memory having a command table area for storing command tables, a second read-only memory for storing a non-reloadable command table, and selecting circuitry, operatively coupled to the first memory and the second memory, for selecting either the non-reloadable command table stored in the second memory or a command table stored in the command table area of the first memory. The command table of the first memory and the command table of the second memory store command class designations which designate the class of each of the commands, and store command code designations which designate the operation corresponding to each of the commands.
申请公布号 US5592619(A) 申请公布日期 1997.01.07
申请号 US19940281213 申请日期 1994.07.27
申请人 OKI ELECTRIC INDUSTRY CO., LTD. 发明人 SHONA, YOSHIHIRO
分类号 G06K17/00;G06K19/073;G07F7/10;(IPC1-7):G06F11/34 主分类号 G06K17/00
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