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    • 3. 发明授权
    • Movable touchpad with high sensitivity
    • 可移动触摸板,灵敏度高
    • US08125449B2
    • 2012-02-28
    • US12639110
    • 2009-12-16
    • Chih-Ming LiaoTing-Wei ChiangChun-Hao ChenYi-Yuh HwangShin-I MaWen-Cheng HuangChin-Der HwangMau-Ran Wang
    • Chih-Ming LiaoTing-Wei ChiangChun-Hao ChenYi-Yuh HwangShin-I MaWen-Cheng HuangChin-Der HwangMau-Ran Wang
    • G06F3/033G09G5/08
    • G06F3/03547G06F3/0317G06F3/0428
    • A highly sensitive movable touchpad is disclosed in the present invention. It is used for laptop computers and has a slidable template for users to move so that a cursor can be controlled by the touchpad. A resistive or capacitive detecting surface can be applied for detecting users' click, double click, drag, or scroll motion on any point of the surface. Additionally, there is an optical displacement sensor provided under the slidable template for detecting surface information on the back surface of the slidable template. A sequence of images of surface movement are processed by an image processing unit. Then, relative movement information is calculated and sent to an operating system in the computer. The operating system controls the cursor with the relative movement information. The present invention uses edge detectors for dynamically controlling the cursor and calibrating location of the cursor so that positioning of the touchpad is synchronous with the cursor.
    • 在本发明中公开了一种高灵敏度的可移动触控板。 它用于笔记本电脑,并具有可滑动的模板,供用户移动,以便可以通过触摸板控制光标。 可以应用电阻或电容检测表面来检测用户在表面的任何点上的点击,双击,拖动或滚动运动。 此外,还有一个光学位移传感器设置在可滑动模板下面,用于检测可滑动模板背面的表面信息。 表面运动的图像序列由图像处理单元处理。 然后,计算相对运动信息并将其发送到计算机中的操作系统。 操作系统用相对运动信息控制光标。 本发明使用边缘检测器来动态地控制光标并校准光标的位置,使得触摸板的定位与光标同步。