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    • 1. 发明申请
    • USB HUB FOR SUPPLYING POWER AND METHOD THEREOF
    • 用于供电的USB HUB及其方法
    • US20130191653A1
    • 2013-07-25
    • US13354895
    • 2012-01-20
    • Terrance SHIHChin-Sung HSUChun-Heng LIN
    • Terrance SHIHChin-Sung HSUChun-Heng LIN
    • G06F1/26
    • H01M10/44H02J7/0055H02J2007/0062
    • A USB hub and a method thereof. The USB hub supplies power to a USB device, is connected between the USB device and a USB host under a working power state, and comprises an upstream port, a downstream port, a power port, and a controller. The upstream port is coupled to the USB host. The downstream port is coupled to the USB device. The power port is coupled to a power source. The controller is coupled to the upstream port, the downstream port, and the power port, and determines whether the USB host has left the working power state, and determines whether the USB device is electrically chargeable, when the USB host has left the working power state. The downstream port provides power to the USB device from the power source when the USB device is electrically chargeable.
    • USB集线器及其方法。 USB集线器为USB设备供电,连接在工作电源状态的USB设备和USB主机之间,并且包括上游端口,下游端口,电源端口和控制器。 上游端口耦合到USB主机。 下游端口耦合到USB设备。 电源端口耦合到电源。 控制器耦合到上游端口,下游端口和电源端口,并且确定USB主机是否已经离开工作电源状态,并且当USB主机已经离开工作电源时确定USB设备是否可充电 州。 当USB设备可充电时,下游端口从电源向USB设备供电。