发明名称 |
EEPROM memory card device having defect relieving means |
摘要 |
This invention provides a memory card device using an EEPROM as a semiconductor memory. When a data write-in defective area is detected in the storage area of the EEPROM, a space area is retrieved from the storage area of the EEPROM as a relieving area and data to be written into the data write-in defective area is written into the relieving area. Then, when the relieving area becomes full and a data write-in defective area is detected in the storage area of the EEPROM, another space area is retrieved from the storage area of the EEPROM as a new relieving area and data to be written into the data write-in defective area is written into the new relieving area. |
申请公布号 |
US6161195(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19930057805 |
申请日期 |
1993.05.07 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
KONISHI, KAZUO;YOSHIOKA, SHIMPEI;MARUYAMA, KOJI;MAEKAWA, TOMOYUKI;SATO, TOSHIAKI |
分类号 |
G11C29/00;(IPC1-7):G06F11/00 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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