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    • 7. 发明申请
    • Method for detecting ambient light brightness and apparatus for achieving the method
    • 用于检测环境光亮度的方法和用于实现该方法的装置
    • US20160153833A1
    • 2016-06-02
    • US14555661
    • 2014-11-27
    • Hui Zhao
    • Hui Zhao
    • G01J1/42G01J1/16H04N9/31
    • G01J1/4204G01J1/18H04N5/58H04N9/3182H04N9/3194
    • A method for detecting ambient light brightness comprises the following steps: sensing light from a direction of a projection screen; performing preset operations at an occasion free of projection, so that a first preset image and a second preset image are presented on the projection screen; acquiring light sensing values of the first preset image and the second preset image to obtain a reference value and a threshold value of an ambient light brightness change; after acquiring a current ambient light brightness value, obtaining a change direction and magnitude of actual ambient light brightness according to the reference value and the threshold value; and obtaining a current actual ambient light brightness value according to the change direction and magnitude of the actual ambient light brightness and the light sensing value of the second preset image. An apparatus for detecting ambient light brightness is also provided.
    • 用于检测环境光亮度的方法包括以下步骤:从投影屏的方向感测光; 在没有投影的情况下执行预设操作,使得在投影屏幕上呈现第一预设图像和第二预设图像; 获取第一预设图像和第二预设图像的光感测值,以获得环境光亮度变化的参考值和阈值; 获取当前环境光亮度值之后,根据参考值和阈值获得实际环境光亮度的改变方向和幅度; 并且根据实际环境光亮度的变化方向和幅度以及第二预设图像的光感测值获得当前实际环境光亮度值。 还提供了一种用于检测环境光亮度的装置。
    • 8. 发明授权
    • Variable valve lift system for an internal combustion engine
    • 内燃机可变气门升程系统
    • US08701608B2
    • 2014-04-22
    • US12997971
    • 2009-06-12
    • Zhijiang XiongHui Zhao
    • Zhijiang XiongHui Zhao
    • F01L1/34
    • F01L1/185F01L1/2405F01L13/0021F01L13/0063F01L2105/00F01L2820/032
    • A variable valve lift system for an internal combustion engine includes a roller rocker lift mechanism and a driving mechanism. A cam and a roller of the roller rocker lift mechanism cooperate with each other to control valve lift. The roller rocker lift mechanism includes a second rocker arm, wherein one end of the second rocker arm is connected with the driving mechanism by a rotation pin so as to create a straight-line displacement of the driving mechanism; the second rocker arm is provided with a guideway in the direction of the straight-line displacement; a rocker-arm pin of the roller rocker lift mechanism is slidably set in the guideway of the second rocker. According to actual work condition of the internal combustion engine, the valve lift is regulated by a motor; and continuous variable valve lift is provided from low speed to high speed.
    • 用于内燃机的可变气门升程系统包括滚子摇臂升降机构和驱动机构。 滚子摇臂升降机构的凸轮和滚子相互配合以控制气门升程。 滚子摇臂提升机构包括第二摇臂,第二摇臂的一端通过旋转销与驱动机构连接,以产生驱动机构的直线位移; 第二摇臂在直线位移方向上设有导轨; 滚子摇臂提升机构的摇臂销可滑动地设置在第二摇杆的导轨中。 根据内燃机的实际工况,气门升程由电机调节; 并且连续可变气门升程从低速到高速提供。