Invention Grant
US08769317B2 USB hub for supplying power upon determination whether a USB device is chargeable according to data transfer rate of the USB device
有权
USB集线器，用于根据USB设备的数据传输速率确定USB设备是否可以充电，以供电
- Patent Title: USB hub for supplying power upon determination whether a USB device is chargeable according to data transfer rate of the USB device
- Patent Title (中): USB集线器，用于根据USB设备的数据传输速率确定USB设备是否可以充电，以供电
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Application No.: US13354895Application Date: 2012-01-20
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Publication No.: US08769317B2Publication Date: 2014-07-01
- Inventor: Terrance Shih , Chin-Sung Hsu , Chun-Heng Lin
- Applicant: Terrance Shih , Chin-Sung Hsu , Chun-Heng Lin
- Applicant Address: TW New Taipei
- Assignee: Via Technologies, Inc.
- Current Assignee: Via Technologies, Inc.
- Current Assignee Address: TW New Taipei
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: G06F1/00
- IPC: G06F1/00 ; H04B1/38
Abstract:
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.
Public/Granted literature
- US20130191653A1 USB HUB FOR SUPPLYING POWER AND METHOD THEREOF Public/Granted day:2013-07-25
Information query
