发明公开
EP2704286A1 ELECTRONIC DEVICE WITH USB INTERFACE AND USB COMMUNICATION STARTING METHOD THEREOF
有权
转让
基本信息:
- 专利标题： ELECTRONIC DEVICE WITH USB INTERFACE AND USB COMMUNICATION STARTING METHOD THEREOF
- 专利标题（中）：具有USB接口的电子设备及其USB通信启动方法
- 申请号：EP11864305.5 申请日：2011-11-15
- 公开(公告)号：EP2704286A1 公开(公告)日：2014-03-05
- 发明人： SHAO, Yongping , SHI, Huiqin , XU, Min , WANG, Tao , YAO, Tierui , ZHANG, Xiaofeng
- 申请人： ZTE Corporation
- 申请人地址： ZTE Plaza Keji Road South Hi-Tech Industrial Park Nanshan District Shenzhen, Guangdong 518057 CN
- 专利权人： ZTE Corporation
- 当前专利权人： DRNC HOLDINGS, INC., WILMINGTON, US
- 当前专利权人地址： DRNC HOLDINGS, INC., WILMINGTON, US
- 代理机构： Ahner, Philippe
- 优先权： CN201110110832 20110429
- 国际公布： WO2012146024 20121101
- 主分类号： H02J7/00
- IPC分类号： H02J7/00 ; H04M1/725
摘要：
The present disclosure provides an electronic device having a USB interface and a method for starting USB communication with such an electronic device, so as to solve the problem of a risk of damaging a mobile phone terminal device arising from sharing of an interface by a charger and a USB communication cable in the related art. In the electronic device, a port GPIO of a baseband chip is connected to a pin USB_VBUS of a USB interface of the baseband chip; based on this circuit, a power management chip detects a state of plugging-in-or-pulling-out of the charger and generates a corresponding interrupt request; and the baseband chip controls the GPIO to output a corresponding level according to the interrupt request. By connecting the port GPIO and the pin USB_VBUS and controlling an output level of GPIO with a software, a high level or a low level (as a triggering signal for starting or terminating the USB communication) is input to the pin USB_VBUS, thus avoiding damage to the device.
摘要（中）：
本发明提供一种具有USB接口的电子设备以及与这种电子设备进行USB通信的方法，以解决充电器共享接口导致手机终端设备受损的风险问题， 相关技术中的USB通信电缆。 在电子设备中，基带芯片的端口GPIO连接到基带芯片USB接口的USB_VBUS引脚; 基于该电路，电源管理芯片检测充电器的插入或拔出状态并生成相应的中断请求; 基带芯片根据中断请求控制GPIO输出相应的电平。 通过连接端口GPIO和USB_VBUS引脚并用软件控制GPIO的输出电平，高电平或低电平（作为启动或终止USB通信的触发信号）被输入到USB_VBUS引脚，从而避免损坏 到设备。
公开/授权文献:
IPC结构图谱:
| H | 电学 |
| --H02 | 发电、变电或配电 |
| ----H02J | 供电或配电的电路装置或系统；电能存储系统 |
| ------H02J7/00 | 用于电池组的充电或去极化或用于由电池组向负载供电的装置 |