发明名称 |
External storage apparatus and control apparatus thereof and data transmission/reception apparatus |
摘要 |
The object of the present invention is to enable to prevent an erroneous erase of a data stored or writing another data on the data as well as to enable to easily switch an erroneous erase prevention switch.A command generator, upon reception of a register instruction for checking a state of a memory card received via an S/P & P/S sequencer, sets a state of an erroneous erase prevention switch in a register and transmits this register content via the S/P & P/S sequencer to a host computer. According to the register content from the memory card, the host computer decides whether a write protect is ON and executes a write inhibit processing when the write protect is ON.
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申请公布号 |
US6170743(B1) |
申请公布日期 |
2001.01.09 |
申请号 |
US19980086788 |
申请日期 |
1998.05.28 |
申请人 |
SONY CORPORATION |
发明人 |
OKAUE TAKUMI;KONDO YOSHIO |
分类号 |
G06F12/16;G06K17/00;G06K19/07;G06K19/073;G06K19/077;G11C5/00;(IPC1-7):G06K5/00 |
主分类号 |
G06F12/16 |
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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