发明申请
US20120260116A1 EXTERNAL POWER-SAVING USB MASS STORAGE DEVICE AND POWER-SAVING METHOD THEREOF
审中-公开
外部节电USB大容量存储设备及省电方法
- 专利标题： EXTERNAL POWER-SAVING USB MASS STORAGE DEVICE AND POWER-SAVING METHOD THEREOF
- 专利标题（中）： 外部节电USB大容量存储设备及省电方法
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申请号： US13084240申请日： 2011-04-11
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公开(公告)号： US20120260116A1公开(公告)日： 2012-10-11
- 发明人: Szu-Ming CHEN , Cheng-Fang Liu
- 申请人： Szu-Ming CHEN , Cheng-Fang Liu
- 主分类号： G06F1/32
- IPC分类号： G06F1/32
摘要：
An external power-saving USB mass storage device has a USB interface, a USB controller, an interface unit, a device controller and a memory unit. The USB controller has a sleep mode determination process embedded therein for predicting when a USB host plugged in by the USB mass storage device will not access the memory unit of the USB mass storage device for a prolonged time, and activates a sleep mode of the device controller through the interface unit so as to instruct the device controller and the memory unit to enter a power-down state for power-saving purpose.
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