FRAMELESS OPTICAL TOUCH DEVICE AND IMAGE PROCESSING METHOD FOR FRAMELESS OPTICAL TOUCH DEVICE
    1.
    发明申请
    FRAMELESS OPTICAL TOUCH DEVICE AND IMAGE PROCESSING METHOD FOR FRAMELESS OPTICAL TOUCH DEVICE 审中-公开
    无框光学触摸装置的无缝光学触摸装置和图像处理方法

    公开(公告)号:US20130141393A1

    公开(公告)日:2013-06-06

    申请号:US13606033

    申请日:2012-09-07

    IPC分类号: G06F3/042

    CPC分类号: G06F3/0416 G06F3/0428

    摘要: A frameless optical touch device includes an indication plane, an image sensing unit, a light emitting unit and a processing unit. There is no any frame disposed on a periphery of the indication plane such that a first light from an external environment can enter a sensing region defined on the indication plane through the periphery of the indication plane. The light emitting unit emits a second light to the sensing region. When there is no any touch object in the sensing region, the image sensing unit senses the first and second lights to generate a first image. When a touch object is in the sensing region, the image sensing unit senses the first and second lights to generate a second image. The processing unit compares brightness of the first image with brightness of the second image so as to obtain a position blocked by the touch object.

    摘要翻译: 无框光学触摸装置包括指示平面,图像感测单元,发光单元和处理单元。 没有任何框架设置在指示平面的周边上,使得来自外部环境的第一光可以通过指示平面的周边进入限定在指示平面上的感测区域。 发光单元向感测区域发射第二光。 当感测区域中没有任何触摸物体时,图像感测单元感测第一和第二光以产生第一图像。 当触摸物体在感测区域中时,图像感测单元感测第一和第二光以产生第二图像。 处理单元将第一图像的亮度与第二图像的亮度进行比较,以获得被触摸对象阻挡的位置。

    OPTICAL TOUCH SENSING APPARATUS
    2.
    发明申请
    OPTICAL TOUCH SENSING APPARATUS 审中-公开
    光学触摸感应装置

    公开(公告)号:US20130257809A1

    公开(公告)日:2013-10-03

    申请号:US13553826

    申请日:2012-07-20

    IPC分类号: G06F3/042

    CPC分类号: G06F3/0428

    摘要: An optical touch sensing apparatus configured to sense a touch around a surface is provided. The optical touch sensing apparatus includes a plurality of optical unit sets respectively defining a plurality of virtual planes. Each of the optical unit sets includes a plurality of optical units, and each optical unit of each optical unit set includes a light source and an image capturing device. The light source emits a detecting light towards the corresponding virtual plane, and the image capturing device captures an image along the corresponding virtual plane. When an object intersects any of the virtual planes, the object reflects the detecting light transmitted in the virtual plane into a reflected light. The image capturing device corresponding to the virtual plane detects the reflected light to obtain information of the object.

    摘要翻译: 提供了一种配置成感测表面周围的触摸的光学触摸感测装置。 光学触摸感测装置包括分别限定多个虚拟平面的多个光学单元组。 每个光学单元组包括多个光学单元,并且每个光学单元组的每个光学单元包括光源和图像捕获装置。 光源向对应的虚拟平面发射检测光,并且图像捕获装置捕获沿着相应虚拟平面的图像。 当物体与任何虚拟平面相交时,物体将在虚拟平面中传输的检测光反射成反射光。 对应于虚拟平面的图像捕获装置检测反射光以获得对象的信息。