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    • 5. 发明申请
    • Method employing bumping algorithm for estimation of signal frequency and displacement estimation method and device
    • 采用碰撞算法对信号频率和位移估计方法及装置进行估计的方法
    • US20070297545A1
    • 2007-12-27
    • US11699738
    • 2007-01-29
    • Hsin Chia ChenTzu Yi ChaoChun Huang LinJeng Feng LanYi Fang Lee
    • Hsin Chia ChenTzu Yi ChaoChun Huang LinJeng Feng LanYi Fang Lee
    • H04B1/10
    • G06F3/038
    • A displacement estimation method is disclosed which comprises: a signal capturing step for capturing a signal; a displacement estimation step for calculating a displacement based on a state change of the signal; and an output step for outputting the displacement, in which the displacement estimation step includes one or more of the steps of: (A) consistency check to determine whether the state change of the signal is consistent with the waveform of the signal; (B) period prediction and compensation to count in the present period according to a proportional length of a previous period; and (C) adaptive threshold update to adjust the definition of the state change corresponding to the amplitude of the signal. A displacement estimation device employing this method, and a method for estimation of signal frequency based on bumping algorithm are also disclosed.
    • 公开了一种位移估计方法,包括:用于捕获信号的信号捕获步骤; 位移估计步骤,用于基于所述信号的状态变化来计算位移; 以及输出步骤,用于输出所述位移,其中所述位移估计步骤包括以下步骤中的一个或多个步骤:(A)一致性检查以确定所述信号的状态变化是否与所述信号的波形一致; (B)期间预测和补偿根据前一期间的比例长度计算在当前期间; 和(C)自适应阈值更新,以调整对应于信号幅度的状态变化的定义。 还公开了一种使用该方法的位移估计装置,以及基于凸起算法的信号频率估计方法。
    • 7. 发明授权
    • Click-event detection device
    • 点击事件检测装置
    • US09389726B2
    • 2016-07-12
    • US13613707
    • 2012-09-13
    • Hsin Chia ChenYu Hao HuangRen Hau GuYi Fang LeeMing Tsan Kao
    • Hsin Chia ChenYu Hao HuangRen Hau GuYi Fang LeeMing Tsan Kao
    • G06F3/041G06F3/042
    • G06F3/0416G06F3/0421
    • There is provided a click-event detection device including a light source, a light control unit, an image sensor and a processing unit. The light control unit is configured to control the light source to illuminate a finger. The image sensor receives reflected light from the finger to accordingly output a plurality of bright image frames and dark image frames. The processing unit is configured to calculate a differential image characteristic between the bright image frames and the dark image frames, to determine a plurality of operating states according to the differential image characteristic, to count a residence time at each of the operating states, and to identify a click-event according to the operating states and the residence time.
    • 提供了包括光源,光控制单元,图像传感器和处理单元的点击事件检测装置。 光控制单元被配置为控制光源照亮手指。 图像传感器接收来自手指的反射光,从而输出多个亮图像帧和暗图像帧。 处理单元被配置为计算亮图像帧和暗图像帧之间的差分图像特性,以根据差分图像特性来确定多个操作状态,以对每个操作状态下的停留时间进行计数,以及 根据运行状态和停留时间识别点击事件。