Method and terminal for selecting internal circuit according to USB interface status
    1.
    发明授权
    Method and terminal for selecting internal circuit according to USB interface status 有权
    根据USB接口状态选择内部电路的方法和终端

    公开(公告)号:US09128691B2

    公开(公告)日:2015-09-08

    申请号:US13657292

    申请日:2012-10-22

    Inventor: Shengcai Liu

    CPC classification number: G06F1/266 G06F13/4077

    Abstract: A method for selecting an internal circuit according to a USB interface status includes: connecting a first pin of a USB interface of a terminal to a power supply through a pull-up resistor, where the first pin is a D− or D+ pin; when detecting that an external USB device is inserted into the USB interface, detecting whether the level status of the first pin is high or low; if the level status is low, connecting the D− and D+ pins to corresponding pins of a USB data communication module of the terminal and controlling charging of the terminal according to a first policy; if the level status is high, determining whether the level statuses of the D− and D+ pins are consistent, and if consistent, controlling charging of the terminal according to a second policy; if inconsistent, controlling charging of the terminal according to a third policy.

    Abstract translation: 根据USB接口状态选择内部电路的方法包括:通过上拉电阻将端子的USB接口的第一引脚连接到电源,其中第一引脚是D或D +引脚; 当检测到外部USB设备插入USB接口时,检测第一个引脚的电平状态是高电平还是低电平; 如果电平状态低,则将D-和D +引脚连接到终端的USB数据通信模块的相应引脚,并根据第一策略控制终端的充电; 如果电平状态很高,则确定D-和D +引脚的电平状态是否一致,如果一致,则根据第二策略控制终端的充电; 如果不一致,则根据第三策略控制终端的充电。

    METHOD AND TERMINAL FOR SELECTING INTERNAL CIRCUIT ACCORDING TO USB INTERFACE STATUS
    2.
    发明申请
    METHOD AND TERMINAL FOR SELECTING INTERNAL CIRCUIT ACCORDING TO USB INTERFACE STATUS 有权
    根据USB接口状态选择内部电路的方法和终端

    公开(公告)号:US20130103966A1

    公开(公告)日:2013-04-25

    申请号:US13657292

    申请日:2012-10-22

    Inventor: Shengcai Liu

    CPC classification number: G06F1/266 G06F13/4077

    Abstract: A method for selecting an internal circuit according to a USB interface status includes: connecting a first pin of a USB interface of a terminal to a power supply through a pull-up resistor, where the first pin is a D− or D+ pin; when detecting that an external USB device is inserted into the USB interface, detecting whether the level status of the first pin is high or low; if the level status is low, connecting the D− and D+ pins to corresponding pins of a USB data communication module of the terminal and controlling charging of the terminal according to a first policy; if the level status is high, determining whether the level statuses of the D− and D+ pins are consistent, and if consistent, controlling charging of the terminal according to a second policy; if inconsistent, controlling charging of the terminal according to a third policy.

    Abstract translation: 根据USB接口状态选择内部电路的方法包括:通过上拉电阻将端子的USB接口的第一引脚连接到电源,其中第一引脚是D或D +引脚; 当检测到外部USB设备插入USB接口时,检测第一个引脚的电平状态是高电平还是低电平; 如果电平状态低,则将D-和D +引脚连接到终端的USB数据通信模块的相应引脚,并根据第一策略控制终端的充电; 如果电平状态很高,则确定D-和D +引脚的电平状态是否一致,如果一致,则根据第二策略控制终端的充电; 如果不一致,则根据第三策略控制终端的充电。

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