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1. 发明授权

US5530938A Non-volatile memory card device having flash EEPROM memory chips with designated spare memory chips and the method of rewriting data into the memory card device 失效
标题翻译：具有指定备用存储器芯片的快闪EEPROM存储芯片的非易失性存储卡装置以及将数据重写到存储卡装置中的方法
公开(公告)号：US5530938A
公开(公告)日：1996-06-25
申请号：US14430
申请日：1993-02-05
申请人： Katsumi Akasaka , Kenichi Sato , Yasuyoshi Watanabe
发明人： Katsumi Akasaka , Kenichi Sato , Yasuyoshi Watanabe
IPC分类号： G06F12/16 , G06F11/14 , G06F12/00 , G06F12/02 , G11C16/02 , G11C16/10 , G11C17/00 , G06F13/00
CPC分类号： G11C16/102 , G06F12/0246 , G11C16/105 , G06F11/1435
摘要： A memory card device and method of rewriting the same which require no separate memory for saving all data in a chip containing data to be rewritten, and in which data are not lost due to a power source failure that may occur during writing operation. Each of a plurality of chips which constitute a memory card is provided with; a logic address, a control region containing a write start number and a write completion number, and a data region. An erased chip is prepared within the memory card device. A write start number in a chip containing data to be rewritten is written, for example, into the erased chip by performing incrementing operation. Data in the data region which is not to be rewritten in a chip containing data to be rewritten are copied into the erased chip and new rewrite data are written into the erased chip. A write completion number in the chip containing data to be rewritten is written, for example, into the erased chip by performing incrementing operation on the write completion number. Finally, the chip which contained data to be rewritten is erased.
摘要翻译：一种存储卡装置及其重写方法，其不需要单独的存储器来保存包含要重写的数据的芯片中的所有数据，并且其中数据不会由于写入操作期间可能发生的电源故障而丢失。提供构成存储卡的多个芯片中的每一个; 逻辑地址，包含写入起始号和写入完成号的控制区以及数据区。擦除的芯片在存储卡装置内准备好。包含要重写的数据的芯片中的写入开始号例如通过执行递增操作被写入擦除的芯片。在包含要重写的数据的芯片中不要重写的数据区域中的数据被复制到擦除的芯片中，并且将新的重写数据写入擦除的芯片。包含要重写的数据的芯片中的写入完成号例如通过对写入完成号执行增量操作而写入擦除的芯片。最后，包含要重写的数据的芯片被擦除。

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