公开(公告)号：US20130076700A1

公开(公告)日：2013-03-28

申请号：US13431144

申请日：2012-03-27

申请人： Ching-Ting CHIU

发明人： Ching-Ting CHIU

IPC分类号： G06F3/033

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： A method for identifying touch object has steps of presetting a range of slopes for noise signals, identifying multiple sensed signals, each having a slope higher than the range of slopes for noise signals in a sensing frame, and if the slope of each sensed signal is higher than an upper bound of the range of slopes for noise signals and is higher than each of those of the adjacent sensed signals, determining that the sensed signal is sensed from a corresponding sensed point touched by a stylus. Accordingly, the method can correctly identify a range touched by a stylus from the sensed signals combined with LCM noise signals.

摘要翻译： 用于识别触摸对象的方法具有预设用于噪声信号的斜率范围的步骤，识别多个感测信号，每个感测信号的斜率高于感测帧中的噪声信号的斜率的范围，并且如果每个感测信号的斜率为 高于用于噪声信号的斜率范围的上限，并且高于相邻感测信号的斜率的上限，确定感测到的信号是从触笔触摸的对应的感测点感测到的。 因此，该方法可以从与LCM噪声信号组合的感测信号中正确地识别由触控笔触摸的范围。

公开(公告)号：US08970521B2

公开(公告)日：2015-03-03

申请号：US13431144

申请日：2012-03-27

申请人： Ching-Ting Chiu

发明人： Ching-Ting Chiu

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： A method for identifying touch object on a touch panel has steps of (A) reading m capacitance variations on a first direction, wherein the m capacitance variations respectively correspond to m sensed units of the touch panel; (B) determining whether a difference between the capacitance variation of a kth sensed unit and that of another sensed unit exceeds a preset noise ripple, wherein k is equal to or smaller than m, m is a positive integer; (C) determining whether the capacitance variation of the kth sensed unit exceeds those of the adjacent sensed units; and (D) determining a touch stylus touched on the touch panel when the difference exceeds the preset noise ripple and the capacitance variation of the kth sensed unit exceeds those of the adjacent sensed units. Accordingly, the method can correctly identify a range touched by a stylus from the sensed signals combined with LCM noise signals.

摘要翻译： 一种用于在触摸面板上识别触摸物体的方法具有以下步骤：（A）在第一方向读取m个电容变化，其中m个电容变化分别对应于触摸面板的m个感测单元; （B）确定第k个感测单元的电容变化与另一个感测单元的电容变化之间的差异是否超过预设噪声波动，其中k等于或小于m，m是正整数; （C）确定第k个感测单元的电容变化是否超过相邻感测单元的电容变化; 以及（D）当所述差异超过预设噪声波动时确定触摸面板上触摸的触摸笔，并且第k个感测单元的电容变化超过相邻感测单元的电容变化。 因此，该方法可以从与LCM噪声信号组合的感测信号中正确地识别由触控笔触摸的范围。