USB COMPOSITE DEVICE AND METHOD THEREFOR
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United States of America Patent
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Issued Date -
May 17, 2012
app pub date -
Jul 28, 2010
filing date -
May 26, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention, which relates to information security device, provides a USB composite device and implementing method thereof. The invention provides a solution that integrates the mass storage function and the key device function on a single device. A USB composite device is connected with a host computer and claims its device type; the composite device receives the operating instruction allocated by the host computer and determines whether the instruction is key device operating instruction; if so, performs key device operating; otherwise, performs data reading/writing operating. Providing higher data security and good usability for the user, the solution of the invention is easy to use.
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