发明名称 |
Two-way connectivity USB control device and operation method thereof |
摘要 |
A two-way connectivity USB control device and its operation method are disclosed. The present invention solves a problem of the prior art that requires users to manually switch a USB controller between an active mode and a passive mode and set a predetermined time interval as in prior art. The two-way connectivity USB control device detects whether or not there is a voltage input. If the detection result is yes, then the two-way connectivity USB control device is switched to a transmit mode, or else the two-way connectivity USB control device is switched to a transparent mode for accessing data stored in an external device by issuing a control command directly. |
申请公布号 |
US8250255(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20080155409 |
申请日期 |
2008.06.04 |
申请人 |
CHENG CHIH-WEN;DDTIC CORPORATION LTD. |
发明人 |
CHENG CHIH-WEN |
分类号 |
G06F13/00;G06F13/12;G06F13/38 |
主分类号 |
G06F13/00 |
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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