| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply switching device that switches between a state for supplying power from a computer device to a USB device connected to the computer device and a state for cutting off the power supply, while keeping the state in which the USB device is connected to the computer device. <P>SOLUTION: A power supply switching device switches between an energization state in which the device is connected to an USB power bus for supplying power and an USB connector and power supply is performed from the USB power bus to the USB connector and a cut-off state in which power supply is cut off from the USB power bus to the USB connector. <P>COPYRIGHT: (C)2012,JPO&INPIT |
