| 摘要 |
PURPOSE: A security USB memory apparatus for efficiently protecting data from unpermitted access in case a host is not connected is provided to protect data from physical unpermitted access about a memory in case a host is not connected. CONSTITUTION: A security USB memory apparatus(200) includes a memory(230), a USB connector, a USB controller, a charging device, and a case opening detecting sensor. The memory is equipped in data for storage inside the case. The USB connector provides data channel and connects the memory and host. The USB controller controls data transfer of a host between the USB connector and the memory. The charging device is used during a host and not connecting as the emergency power-supply it is charged it connects to a host.
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