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    • 55. 发明申请
    • Integrated optical focusing/zooming system
    • 集成光学聚焦/变焦系统
    • US20070242941A1
    • 2007-10-18
    • US11783971
    • 2007-04-13
    • Xiaoping HuBin TianYi LiTieying ZhouCunyue LuYu Chen
    • Xiaoping HuBin TianYi LiTieying ZhouCunyue LuYu Chen
    • G03B17/00
    • G03B3/10G02B7/021G02B7/023G02B7/102
    • An integrated optical auto focus and zooming system is provided, which includes a first optical lens, a first hollow casing, a second hollow casing, a plurality of piezoelectric elements. The first optical lens is placed in the first hollow casing, the first hollow casing and the second hollow casing are screwed with each other, and the plurality of piezoelectric elements are attached either on the first hollow casing or the second hollow casing. Upon the excitation of mechanical vibrations by the plurality of piezoelectric elements, a traveling wave is generated on the attached casing, so as to drive the other casing to rotate and then to move axially. Additional lens groups and casings can be added in the same way so to achieve multiple relative motions between lens groups and image sensor, and thus achieving the objectives of focusing and zooming. The present invention integrates the motor into the lens and hence eliminates the transmission mechanism, leading to simple structure, high efficiency, and multiple advantages in size, cost, and efficiency, etc., and thus can be very useful.
    • 提供了一种集成的光学自动对焦和变焦系统,其包括第一光学透镜,第一中空壳体,第二中空壳体,多个压电元件。 第一光学透镜被放置在第一中空壳体中,第一中空壳体和第二中空壳体彼此螺纹连接,并且多个压电元件安装在第一中空壳体或第二中空壳体上。 当多个压电元件激发机械振动时,在附接的壳体上产生行波,从而驱动另一壳体旋转,然后轴向移动。 可以以相同的方式添加附加的透镜组和外壳,以便在透镜组和图像传感器之间实现多个相对运动,从而实现聚焦和缩放的目的。 本发明将电动机集成到透镜中,从而消除了传动机构,从而导致结构简单,效率高,尺寸大,成本高,效率高等优点,因而非常有用。
    • 56. 发明授权
    • Self-correcting mobile antenna control system and method
    • 自校正移动天线控制系统及方法
    • US06972724B1
    • 2005-12-06
    • US10864944
    • 2004-06-09
    • Bin TianJudd Erlenbach
    • Bin TianJudd Erlenbach
    • H01Q1/32H01Q3/06
    • H01Q1/3275H01Q1/3208H01Q3/06
    • A self-correcting mobile antenna control system and method. A method is provided for controlling the direction of an antenna mounted on a vehicle. The method includes determining a position decision based on a direction change signal output from a direction sensor, determining an energy decision based on a signal strength indicator, combining the position decision and the energy decision to produce an antenna control signal, and adjusting the antenna's direction based on the antenna control signal. The system also operates to periodically calibrate itself to offset any sensor errors so that intensive calibration procedures can be avoided.
    • 一种自校正移动天线控制系统及方法。 提供了一种用于控制安装在车辆上的天线的方向的方法。 该方法包括基于从方向传感器输出的方向改变信号确定位置决定,基于信号强度指示器确定能量判定,组合位置判定和能量判定以产生天线控制信号,以及调整天线的方向 基于天线控制信号。 该系统还可以定期校准自身以抵消任何传感器错误,从而避免强化的校准过程。