Movable touchpad with high sensitivity
    11.
    发明授权
    Movable touchpad with high sensitivity 有权
    可移动触摸板,灵敏度高

    公开(公告)号:US08125449B2

    公开(公告)日:2012-02-28

    申请号:US12639110

    申请日:2009-12-16

    IPC分类号: G06F3/033 G09G5/08

    摘要: 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.

    摘要翻译: 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。

    Image invariant optical speckle capturing device and method
    12.
    发明授权
    Image invariant optical speckle capturing device and method 有权
    图像不变光学斑点捕获装置及方法

    公开(公告)号:US07715016B2

    公开(公告)日:2010-05-11

    申请号:US11998406

    申请日:2007-11-30

    IPC分类号: G01B11/02 G06F3/033 G09G5/08

    摘要: An image invariant optical speckle capturing device and method. A highly coherent light is used to illuminate a surface and is scattered by the surface, and is captured from the direction with a ±10° from the angle of specular reflection. A light restrictive module is designed to confine the angular field of view of the sensor, when the speckle capturing device has a relative motion with respect to the surface, the speckle only move on the image but the shape and the intensity are almost keep constant, that is favorable for high accuracy optical pattern recognition and positioning.

    摘要翻译: 一种图像不变光学斑点捕获装置及方法。 高度相干的光用于照射表面并被表面散射,并且从与镜面反射角成±10°的方向捕获。 光限制模块被设计成限制传感器的角视场,当斑点捕获装置相对于表面具有相对运动时,散斑仅在图像上移动,但形状和强度几乎保持恒定, 这有利于高精度光学图案识别和定位。

    METHOD AND SYSTEM FOR POSITIONING BY USING OPTICAL SPECKLE
    13.
    发明申请
    METHOD AND SYSTEM FOR POSITIONING BY USING OPTICAL SPECKLE 有权
    使用光学定位的方法和系统

    公开(公告)号:US20110134434A1

    公开(公告)日:2011-06-09

    申请号:US12634707

    申请日:2009-12-10

    IPC分类号: G01B9/02 G01B11/14

    摘要: A method and system for positioning by using optical speckle are disclosed in this invention. A highly coherent laser light irradiates a positioning template in advance to record optical speckles caused by interference by scattered light beams from the positioning template for establishing a speckle database. Furthermore, a reference point is defined to position each recorded speckle. Therefore, a coordinate with respect to the reference point corresponding to a specified speckle can be used to position a target or applied to distance measurement by the speckle database. The precision of the speckles according to the present invention is within several micrometers. Hence, it can provide high precision positioning.

    摘要翻译: 本发明公开了一种使用光学散斑进行定位的方法和系统。 高度相干的激光预先照射定位模板以记录由来自定位模板的散射光束的干涉引起的光斑,以建立散斑数据库。 此外,定义参考点以定位每个记录的斑点。 因此,可以使用相对于指定斑点的参考点的坐标来定位目标或应用于斑点数据库的距离测量。 根据本发明的斑点的精度在几微米内。 因此,可以提供高精度定位。