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1. 发明申请

WO2008039006A1 MULTI POSITION DETECTING METHOD AND AREA DETECTING METHOD IN INFRARED RAYS TYPE TOUCH SCREEN 审中-公开
标题翻译：红外线类型触摸屏中的多位置检测方法和区域检测方法
公开(公告)号：WO2008039006A1
公开(公告)日：2008-04-03
申请号：PCT/KR2007/004721
申请日：2007-09-27
申请人： NEXIO CO., LTD. , KIM, Kil-Sun , KIM, Yong-Chul
发明人： KIM, Kil-Sun , KIM, Yong-Chul
IPC分类号： G06F3/041
CPC分类号： G06F3/0421
摘要： A method for detecting the coordinates of multiple touching objects on an infrared touch screen without errors and a method for detecting the area of the touched spot are provided. The coordinate detection method includes measuring and storing the maximum received level of a pair of infrared emitting and receiving elements, emission and receptionof which is not impeded by any object, and initializing an index variable for identification of multiple touched spots, de¬ termining that the screen has been touched when a received level of a pair of infrared emitting and receiving elements, emission and reception of which is impeded by an object, is less than the maximum level, measuring the minimum level to detect center coordinates of the object, and reading an index variable for the center coordinates and determining that the center coordinates are new and setting an index variable for the center coordinates if no index variable is read for the center coordinates and storing the center coordinates and the index variable for the center co¬ ordinates. The area detection method also includes measuring received levels of three pairs of infrared emitting and receiving elements corresponding to the center and two ends of the object and measuring and storing X and Y-axis diameters of a spot touched by the object based on the measured levels, and measuring thearea of the touched spot based on the diameters under the assumption that the spot is an oval.
摘要翻译：提供一种用于检测红外触摸屏上的多个触摸对象的坐标而没有错误的方法以及用于检测触摸点的区域的方法。坐标检测方法包括测量和存储一对红外线发射和接收元件的最大接收电平，其发射和接收不被任何物体阻碍，并且初始化用于识别多个接触点的索引变量，从而确定当发射和接收被对象阻碍的一对红外发射和接收元件的接收电平小于最大电平时，屏幕被触摸，测量检测对象的中心坐标的最小电平和读取中心坐标的索引变量，并确定中心坐标是新的，并且如果没有为中心坐标读取索引变量并存储中心坐标和中心坐标的索引变量，则为中心坐标设置索引变量。区域检测方法还包括测量对象于物体的中心和两端的三对红外发射和接收元件的接收电平，并且基于测量的电平来测量和存储由对象触摸的点的X和Y轴直径并且在假设斑点为椭圆形的情况下基于直径来测量接触点的面积。

2. 发明申请

WO2007083883A1 REFINED COORDINATE DETECTION METHOD AND ERROR CORRECTION METHOD FOR TOUCH PANEL 审中-公开
标题翻译：针对面板的精确坐标检测方法和错误校正方法
公开(公告)号：WO2007083883A1
公开(公告)日：2007-07-26
申请号：PCT/KR2006/004957
申请日：2006-11-23
申请人： NEXIO CO., LTD , KIM, Yong-Churl , KIM, Kil-Sun
发明人： KIM, Kil-Sun
IPC分类号： G06F3/041
CPC分类号： G06F3/0421
摘要： A refined coordinate detection method for a touch panel, which more finely measures coordinates of an object without increasing the number of infrared emitting/receiving elements, and an error correction method, which minimizes position detection errors caused by received optical level errors due to external environment or their inherent characteristics, are provided. In the detection method, received levels of infrared emitting/receiving elements corresponding to left and right ends of object are measured and stored and the levels and a maximum received level are compared to calculate the refined coordinates. In the correction method, a lower limit level at a position where infrared reception is most significantly impeded by object is calculated through a comparison calculation of maximum and minimum received levels and it is detected that an object is present at a position only when a lower limit level at that position is not greater than the calculated one.
摘要翻译：一种用于触摸面板的精细坐标检测方法，其更精细地测量对象的坐标，而不增加红外发射/接收元件的数量，以及误差校正方法，其最小化由于外部环境所接收的光学水平误差引起的位置检测误差或其固有特性。在检测方法中，测量并存储对应于对象的左端和右端的红外发射/接收元件的接收电平，并比较电平和最大接收电平以计算精细坐标。在校正方法中，通过最大和最小接收电平的比较计算来计算在红外接收被物体最明显阻碍的位置处的下限电平，并且检测到目标仅在下限该位置的水平不大于计算的水平。

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