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    • 13. 发明申请
    • Self-Adaptive Study Evaluation
    • 自适应研究评估
    • US20100129783A1
    • 2010-05-27
    • US12323331
    • 2008-11-25
    • Changnian LiangPingyi YanXiaofeng ZhangYuan Li
    • Changnian LiangPingyi YanXiaofeng ZhangYuan Li
    • G09B5/00
    • G09B7/04
    • A study evaluation system used for computer-based learning uses evaluation contents arranged in a multilevel arrangement for self-adaptive study evaluation. The study evaluation system provides a present evaluation content to a user through user interaction, and determines a subsequent evaluation content or a subsequent knowledge point to be studied by the user at least partially based on the user feedback on the present evaluation content, the multilevel arrangement of the evaluation contents, and a characteristic information of the user. The study evaluation system may further establish a data set for each user to record the user feedbacks on the evaluation contents, and use the data set in combination with certain basic user information to realize individualized study evaluation.
    • 用于计算机学习的研究评估系统使用以多级安排排列的评估内容进行自适应学习评估。 研究评估系统通过用户交互向用户提供当前的评估内容,并且至少部分地基于用户对当前评估内容的反馈来确定用户要研究的后续评估内容或后续知识点,多级布置 的评估内容,以及用户的特征信息。 研究评估系统可以进一步建立每个用户的数据集,以便记录用户对评估内容的反馈,并结合某些基本用户信息使用数据集,实现个性化的学习评估。
    • 14. 发明申请
    • MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE OF A MAGNETIC HEAD AND MEDIA
    • 在磁头和介质界面测量和中和电荷
    • US20090074949A1
    • 2009-03-19
    • US12275166
    • 2008-11-20
    • Zhu FENGEllis CHAXiaofeng ZHANG
    • Zhu FENGEllis CHAXiaofeng ZHANG
    • B05D5/00B05D3/14
    • G11B5/60
    • A system and method for measuring and neutralizing the electrical charge at the interface of a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A surface treatment material is applied to the magnetic head. The surface treatment material matches the medium surface material on the surface of the magnetic storage medium. The surface treatment material on the magnetic read/write head may be a fluorinated carbon, such as a Fomblin Z-derivative, perfluoro alkyl trichlorosilane, a FC-722, or a fluorinated polymer. The surface treatment material can be applied to the magnetic head by a vapor deposition process or by a liquid immersion process. The charge on the head-disk interface can be measured by applying varying external charges to the head while reading a signal previously written to the disk.
    • 公开了一种用于测量和中和磁头和诸如磁盘的磁存储介质的界面处的电荷的系统和方法。 将表面处理材料施加到磁头。 表面处理材料与磁性存储介质表面上的介质表面材料相匹配。 磁读写头上的表面处理材料可以是氟化碳,如Fomblin Z衍生物,全氟烷基三氯硅烷,FC-722或氟化聚合物。 表面处理材料可以通过气相沉积法或液浸法施加到磁头上。 头磁盘接口上的电荷可以通过在读取先前写入磁盘的信号时向磁头施加变化的外部电荷来测量。
    • 20. 发明授权
    • Electronic device having USB interface and method for starting USB communication with such device
    • 具有USB接口的电子设备和用于启动与这种设备的USB通信的方法
    • US09110650B2
    • 2015-08-18
    • US14113947
    • 2011-11-15
    • Yongping ShaoHuiqin ShiMin XuTao WangTierui YaoXiaofeng Zhang
    • Yongping ShaoHuiqin ShiMin XuTao WangTierui YaoXiaofeng Zhang
    • G06F1/26H02J7/00G06F13/38G06F13/42
    • G06F1/26G06F13/385G06F13/4295H02J7/00H02J2007/0062
    • 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.
    • 本公开提供一种具有USB接口的电子设备和用于开始与这种电子设备的USB通信的方法,以解决由于充电器共享接口而导致的移动电话终端设备损坏的风险的问题,以及 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连接到基带芯片的USB接口的引脚USB_VBUS; 基于该电路,电源管理芯片检测充电器插拔的状态,并产生相应的中断请求; 并且基带芯片控制GPIO根据中断请求输出相应的电平。 通过连接端口GPIO和引脚USB_VBUS并通过软件控制GPIO的输出电平,将高电平或低电平(作为用于启动或终止USB通信的触发信号)输入到引脚USB_VBUS,从而避免损坏 到设备。