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公开(公告)号：US09134868B2
公开(公告)日：2015-09-15
申请号：US14016686
申请日：2013-09-03
发明人： Chin-Fu Chang , Shang-Tai Yeh
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/045
摘要： The invention provides a touch sensing method. The touch sensing method comprises the following steps: searching each line piece of a line piece group in a 1-D sensing information which comprising a plurality of values, and each line piece comprises part of the values; keeping a first line piece in the line piece group if at least one value of the first line piece of all line pieces is higher than a preset range; and excluding a second line piece from the line piece group if at least one value of the second line piece of all line pieces is lower than the preset range.
摘要翻译： 本发明提供了一种触摸感测方法。 触摸感测方法包括以下步骤：在包括多个值的1-D感测信息中搜索线条组的每个线条，并且每个线条包括部分值; 如果所有线段的第一线段中的至少一个值高于预设范围，则保持线段组中的第一线段; 并且如果所有线段的第二线段的至少一个值低于预设范围，则排除来自线段组的第二线段。
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公开(公告)号：US08754868B2
公开(公告)日：2014-06-17
申请号：US13960109
申请日：2013-08-06
发明人： Chin-Fu Chang
IPC分类号： G06F3/041
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/0418 , G06F2203/04103 , G06F2203/04104 , G06F2203/04107 , G06F2203/04111
摘要： The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.
摘要翻译： 本发明提供一种互电容式多点触摸屏。 导电条图案允许当互电容多点触摸屏上的每个外部导电物体的触摸范围大于预定条件时，每个外部导电物体和第一导电条之间的电容耦合大于每个外部导电物体之间的电容耦合 导电物体和第二导电带，使得驱动信号的比例通过外部导电物体中的至少一个第一外部导电物体流出第一导电条，并经由至少一个第二外部导电物体流入第二导电条， 外部导电物体随着第二外部导电物体的数量增加而减小。
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3.发明授权Sensor circuit for concurrent integration of multiple differential signals and operating method thereof 有权用于并行集成多个差分信号的传感器电路及其操作方法公开(公告)号：US08624635B2
公开(公告)日：2014-01-07
申请号：US13690023
申请日：2012-11-30
发明人： Chin-Fu Chang , Guang-Huei Lin
IPC分类号： G11C27/02
CPC分类号： H03K6/00 , G06F3/041 , G11C27/026 , H03M1/00 , H03M1/1205 , H03M1/1225 , H03M1/1245 , H03M1/468 , H03M1/802 , H03M1/804
摘要： The present invention provides a circuit for concurrent integration of multiple differential signals. The circuit comprises a plurality of Stage 1 integration circuits arranged in an array and a plurality of Stage 2 integration circuits arranged in an array. Each of the Stage 1 integration circuits is configured to concurrently integrate an input signal, and to send out a Stage 1 positive signal and a Stage 1 negative signal that is reverse to the Stage 1 positive signal. Each of the Stage 2 integration circuits is configured to integrate a differential signal from a Stage 1 positive signal sent from a corresponding Stage 1 integration circuit and a Stage 1 negative signal sent from another Stage 1 integration circuit next to the corresponding Stage 1 integration circuit to output a Stage 2 signal.
摘要翻译： 本发明提供了一种用于同时整合多个差分信号的电路。 该电路包括排列成阵列的多个阶段1积分电路和排列成阵列的多个阶段2积分电路。 每个阶段1积分电路被配置为同时整合输入信号，并发出与阶段1正信号相反的阶段1正信号和阶段1负信号。 每个阶段2积分电路被配置为将来自相应级1积分电路发送的级1正信号的差分信号和从相应级1积分电路旁边的另一级1积分电路发送的级1负信号整合到 输出阶段2信号。
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公开(公告)号：US09331696B2
公开(公告)日：2016-05-03
申请号：US13792960
申请日：2013-03-11
发明人： Chin-Fu Chang
CPC分类号： H03K19/0005 , G01R27/2605 , H03M1/34
摘要： A signal sensing circuit is provided. The signal sensing circuit comprises a first current-to-voltage circuit, a second current-to-voltage circuit and an impedance shifting circuit. The first current-to-voltage circuit converts a first input current into a first voltage that is directly proportional to a first impedance. The second current-to-voltage circuit converts a second input current into a second voltage that is directly proportional to a second impedance. The impedance shifting circuit generates a third voltage according to the first voltage, wherein the first impedance/the second impedance=K(first voltage/third voltage), where K is a real number.
摘要翻译： 提供信号感测电路。 信号感测电路包括第一电流 - 电压电路，第二电流 - 电压电路和阻抗移位电路。 第一电流 - 电压电路将第一输入电流转换成与第一阻抗成正比的第一电压。 第二电流 - 电压电路将第二输入电流转换成与第二阻抗成正比的第二电压。 阻抗移位电路根据第一电压产生第三电压，其中第一阻抗/第二阻抗= K（第一电压/第三电压），其中K是实数。
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5.发明授权Detecting method and device for suppressing interference of low-frequency noise 有权用于抑制低频噪声干扰的检测方法和装置公开(公告)号：US09325299B2
公开(公告)日：2016-04-26
申请号：US13889702
申请日：2013-05-08
发明人： Chin-Fu Chang , Shang-Tai Yeh , Guang-Huei Lin , Po-Chuan Lin
CPC分类号： H03K3/013 , G06F3/03545 , G06F3/0418 , G06F3/044 , G11C27/026
摘要： The invention, upon receiving an input signal, sums the absolute values of the difference of each pair of values adjacent to each other within a series of detected signal values to suppress the interference of low-frequency noise. Furthermore, the invention sums the absolute values of the moving averages of the differences of each pair of values adjacent to each other within a series of detected signal values to suppress both the interference of low-frequency noise and the interference of high-frequency noise. No synchronization with the input signal is necessary. The detection can be started at any phase of the input signal.
摘要翻译： 本发明在接收到输入信号后，将一系列检测信号值中的每对相邻值的差的绝对值求和，以抑制低频噪声的干扰。 此外，本发明将一系列检测信号值中的彼此相邻的每对值的差的移动平均值的绝对值相加，以抑制低频噪声的干扰和高频噪声的干扰。 不需要与输入信号同步。 可以在输入信号的任何阶段开始检测。
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公开(公告)号：US09372585B2
公开(公告)日：2016-06-21
申请号：US14271103
申请日：2014-05-06
发明人： Chin-Fu Chang
CPC分类号： G06F3/044 , G06F3/0416
摘要： A detecting device and method for a capacitive touch screen is proposed. A plurality of frequency settings is employed. Each frequency setting corresponds to a type of driving mode of a type of driving potential. These frequency settings are used for setting the detecting device for the capacitive touch screen. When the signal-to-noise (S/N) ratio of the signals in the capacitive touch screen is not appropriate, frequency settings are changed by selecting one that yields a more appropriate S/N ratio among the frequency settings. The driving mode includes a single-electrode driving mode in which only a single driving electrode in the capacitive touch screen is driven at a time, and a multiple-electrode driving mode in which multiple driving electrodes are simultaneously driven at a time, and there can be several types of driving potentials.
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公开(公告)号：US09285940B2
公开(公告)日：2016-03-15
申请号：US14607809
申请日：2015-01-28
发明人： Chin-Fu Chang , Cheng-Han Lee , Chi-Hao Tang , Shun-Lung Ho
CPC分类号： G06F3/044 , G01R27/2605 , G06F3/03545 , G06F3/041 , G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F3/047 , G06F2203/04101 , G06F2203/04102 , G06F2203/04103 , G06F2203/04104 , G06F2203/04106 , G06F2203/04111
摘要： A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position.
摘要翻译： 公开了一种用于位置检测的方法和装置。 可以通过感测装置进行自电容检测。 根据自身电容检测的结果，可以执行第一互电容检测以确定一个或多个第一1-D位置。 根据第一互电容检测的结果，可以执行第二互电容检测，以确定与每个第一1-D位置对应的一个或多个第二1-D位置。
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公开(公告)号：US09069429B2
公开(公告)日：2015-06-30
申请号：US14016803
申请日：2013-09-03
发明人： Chin-Fu Chang , Chi-Hao Tang
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/045
摘要： The invention provides a method and a device for image segmentation. After obtaining an image constructed of a plurality of 1D sensing information, each line piece in each 1D sensing information, which corresponds to touch or proximity of one or more external conductive objects, is determined. Next, the line pieces corresponding to touch or proximity of different external conductive objects are segmented based on overlapping relationships between the adjacent line pieces.
摘要翻译： 本发明提供了一种用于图像分割的方法和装置。 在获得由多个1D感测信息构成的图像之后，确定每个1D感测信息中对应于一个或多个外部导电物体的触摸或接近的每个线条。 接下来，基于相邻线段之间的重叠关系来分割对应于不同外部导电物体的触摸或接近的线段。
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公开(公告)号：US09069411B2
公开(公告)日：2015-06-30
申请号：US14270864
申请日：2014-05-06
发明人： Chin-Fu Chang
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/0418 , G06F2203/04103 , G06F2203/04104 , G06F2203/04107 , G06F2203/04111
摘要： The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.
摘要翻译： 本发明提供一种互电容式多点触摸屏。 导电条图形允许当互电容多点触摸屏上的每个外部导电物体的触摸范围大于预定条件时，每个外部导电物体与第一导电条之间的电容耦合大于每个外部导电物体之间的电容耦合 导电物体和第二导电带，使得驱动信号的比例通过外部导电物体中的至少一个第一外部导电物体流出第一导电条，并经由至少一个第二外部导电物体流入第二导电条， 外部导电物体随着第二外部导电物体的数量增加而减小。
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公开(公告)号：US08970551B2
公开(公告)日：2015-03-03
申请号：US14030418
申请日：2013-09-18
发明人： Chin-Fu Chang , Cheng-Han Lee , Chi-Hao Tang , Shun-Lung Ho
CPC分类号： G01R27/2605 , G06F3/03545 , G06F3/0416 , G06F3/0418 , G06F3/044 , G06F3/047 , G06F2203/04103 , G06F2203/04104 , G06F2203/04106 , G06F2203/04111
摘要： A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position. One or more 2-D positions can be provided according to the one or more second 1-D positions corresponding to each first 1-D position. Besides, during the self-capacitance detection, the first mutual-capacitance detection, and the second mutual-capacitance detection, a touch related sensing information corresponding to a touch that covers a wide area can be neglected for palm rejection.
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