CN102253748B - 触摸感测设备、方法及包括触摸感测设备的电子设备 - Google Patents

触摸感测设备、方法及包括触摸感测设备的电子设备 Download PDF

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CN102253748B
CN102253748B CN201110193413.2A CN201110193413A CN102253748B CN 102253748 B CN102253748 B CN 102253748B CN 201110193413 A CN201110193413 A CN 201110193413A CN 102253748 B CN102253748 B CN 102253748B
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S·P·霍特林
J·G·艾里亚斯
K·V·萨卡丽亚
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Abstract

本发明公开了一种触摸感测设备、方法及包括触摸感测设备的电子设备。触摸敏感设备可包括多个感测点，每个感测点位于驱动线和感测线的交叉处。在一些实施例中，可以利用具有唯一的例如相位或频率的特性的驱动信号同时或近乎同时激励多个驱动线。感测信号可以出现在每个感测线上，所述感测信号可以通过与所激励的驱动线和感测线对应的感测点处存在的触摸的量而与驱动信号相关。通过采用基于唯一驱动信号的处理技术，可以从感测信号提取对应于每个感测点的触摸量。触摸感测方法和设备可以并入到用于多种电子设备的接口中，这些电子设备例如有台式计算机、书写板计算机、笔记本计算机、手持计算机、个人数字助理、媒体播放器和移动电话。

Description

触摸感测设备、方法及包括触摸感测设备的电子设备
本发明是申请日为2007年12月21日、申请号为200780049188.7且发明名称为“同时感测配置”的发明专利申请的分案申请。
背景技术
近来，对用于电子设备和计算机系统的基于触摸和/或接近的输入系统的兴趣逐渐增加，这些输入系统能够同时识别多重触摸和/或悬停事件。很多这些系统，例如基于互电容或某种光学感测配置的系统，涉及将周期性激励波形施加到多个感测点，以及通过在感测点处存在的触摸和/或接近的量来检测可能与该周期性激励波形相关的感测波形。在一些实施例中，这些系统将周期性激励波形施加到驱动线，所述驱动线在感测点处耦接到感测线。通常，一次一条地将激励波形施加到这些驱动线。由于设备通常包括多个这种驱动线，所以要顺序地驱动每条驱动线。
发明内容
根据本发明的一个实施例，提供了一种用于从触摸敏感表面获得触摸信息的方法。触摸敏感设备可包括多个感测点。每个感测点可位于驱动线和感测线的交叉处或附近。例如，所述方法可以利用一个或多个唯一驱动信号同时(或基本上同时)激励多个驱动线。例如，信号可以具有预定的相位和/或频率关系。该方法还可以包括感测至少一个感测线上的感测信号。所述感测信号可以通过一个或多个物体与一个或多个感测点的触摸或接近而与驱动信号相关，其中所述一个或多个感测点位于多个驱动线与所述至少一个感测线的交叉处或附近。该方法还可以包括例如从所述感测信号获得触摸信息。可以通过从感测信号获得多个值，例如通过在一个或多个时间段上积分所述感测信号并且从所述多个值的数学组合获得触摸信息，来从感测信号获得触摸。
在另一个实施例中，本发明可以涉及一种多重触摸感测设备。该触摸感测设备可以包括例如具有位于驱动线和感测线的交叉处的多个感测点的触摸敏感表面。该触摸感测设备还可以包括驱动电路，该驱动电路被配置为将唯一驱动信号同时施加到多个驱动线。例如，信号可以具有预定相位和/或频率关系。该触摸感测设备还可以包括感测电路，该感测电路被配置为检测至少一个感测线中的感测信号并从该感测信号获得一个或多个感测点的触摸信息。这种触摸感测设备例如可以基于自身电容或互电容。
在又一个实施例中，本发明可以涉及一种结合如上所述的触摸感测配置或实现触摸感测方法的电子设备或计算机系统。所述电子设备可以采取多种形式，例如包括台式计算机、书写板计算机、笔记本计算机、手持计算机、个人数字助理、媒体播放器或移动电话。其他形式因素也是可能的。
在还一个实施例中，本发明可以涉及一种用于从触摸敏感表面获得触摸信息的方法。所述方法可以包括执行对所述触摸敏感表面的一个区域的粗略扫描，以确定在所述区域内是否存在触摸。如果在所述区域内存在触摸，则可执行对该区域的精细扫描，以确定关于在该区域内存在的一个或多个触摸的更精确数据。如果在所述区域内不存在触摸，则略去精细扫描，并且开始对另一个区域的粗略扫描。通过消除不必要的精细扫描，可以节省时间和电力。
附图说明
根据以下结合附图的描述，可最好地理解本发明的以上和其他方面，在附图中：
图1例示了根据本发明实施例的用作计算机系统的输入设备的多重触摸感测设备。
图2例示了根据本发明实施例的对应于物体对多重触摸表面的多个感测点的接近的多个接触片区。
图3例示了可用在本发明实施例中的互电容感测电路的简化示意图。
图4例示了根据本发明实施例的用于操作多重触摸感测设备的处理。
图5例示了根据本发明实施例的多重触摸感测设备。
图6例示了根据本发明实施例的用于执行多线激励的处理。
图7例示了根据现有技术的单线激励配置。
图8例示了根据本发明实施例的两线同时激励配置。
图9例示了根据本发明实施例的四线同时激励配置。
图10例示了根据本发明实施例的可以采用的各种形式因素的电子设备和计算机系统。
图11例示了根据本发明实施例的基于频率的四线同时激励配置。
图12概览地例示了根据本发明实施例的用于激励窗口的各种另选方式。
具体实施方式
可以利用如图1所例示的多重触摸感测配置来识别多个同时或近乎同时的触摸事件。多重触摸感测配置100可以检测和监视同时、近乎同时、在不同时间、或者在一时间段上在触摸敏感表面101上的多个触摸属性(例如包括标识、位置、速度、尺寸、形状以及幅值)。触摸敏感表面101可以提供多个感测点、坐标或节点102，它们可以基本上彼此独立地工作并且代表触摸敏感表面上的不同点。感测点102可以位于栅格或像素阵列中，其中每个感测点能够同时生成信号。感测点102可以被视为将触摸敏感表面101映射到坐标系中，例如，笛卡儿坐标系或极坐标系。
触摸敏感表面例如可以采取书写板或触摸屏的形式。为了生产触摸屏，可以利用基本上透明的导线介质(例如，氧化铟锡(ITO))形成电容感测点和其他相关联的电子结构。感测点102的数量和配置可以改变。感测点102的数量通常取决于所期望的分辨率和敏感度。在触摸屏应用中，感测点102的数量还可以取决于触摸屏的所期望的透明度。
利用多重触摸感测配置，就像如下更详细描述的，在多重触摸传感器101的节点102处生成的信号可用来产生特定点处随时间变化的触摸的图像。例如，与触摸敏感表面101接触或接近的每个物体(例如，手指、触笔等)可以生成接触片区201，如图2所例示的。每个接触片区201可以覆盖几个节点102。被覆盖的节点202可以检测到物体，而其余的节点102则不能检测物体。因此，可以形成触摸表面平面的像素化图像(其可被称作触摸图像、多重触摸图像、或接近图像)。每个接触片区201的信号可以被组成在一起。每个接触片区201可以基于每个点的触摸量包括高点和低点。接触片区201的形状以及图像内的高点和低点可以用于区分出彼此更接近的接触片区201。此外，可以将当前图像与之前的图像进行比较，来确定物体随时间如何移动，以及结果在主机设备中应当执行什么对应的动作。
很多不同的感测技术可以与这些感测配置结合使用，包括电阻的、电容的、光的，等等。在基于电容的感测配置中，当物体靠近触摸敏感表面101时，在物体与接近该物体的感测点102之间形成小电容。通过检测在每个感测点102处由该小电容引起的电容改变，并且通过记住感测点的位置，感测电路103可以检测并监视多个触摸。电容感测节点可以基于自身电容或互电容。
在自身电容系统中，相对于某个基准(例如，地)来测量感测点的“自身”电容。感测点102可以是空间地隔开的电极。这些电极通过导电迹线105a(驱动线)和105b(感测线)耦接到驱动电路104和感测电路103。在一些自身电容实施例中，可以采用到每个电极的单个导电迹线作为驱动和感测线。
在互电容系统中，可以测量第一电极与第二电极之间的“互”电容。在互电容感测配置中，感测点可以通过形成空间隔开的线的构图导体的交叉来形成。例如，驱动线105a可以形成在第一层上，而感测线105b可以形成在第二层105b上，使得驱动线和感测线在感测点102处彼此交叉或“相交”。不同的层可以是不同的基板、同一基板的不同侧、或者基板的具有某些介电隔离的同一侧。由于驱动线和感测线隔开，所以在每个“相交”处有一个电容耦接节点。
驱动线和感测线的配置方式可以改变。例如，在笛卡儿坐标系(如所例示的)中，驱动线可以形成为水平行，而感测线可以形成为垂直列(反之亦然)，由此形成可以被看作具有不同的x和y坐标的多个节点。另选地，在极坐标系中，感测线可以是多个同心圆而驱动线是径向延伸的线(反之亦然)，由此形成可以被看作是具有不同的r和角度坐标的多个节点。在任一种情况下，驱动线105a可以连接到驱动电路104，而感测线105b可以连接到感测电路103。
在操作期间，驱动信号(例如，周期性电压)被施加到每个驱动线105a。在驱动线105a被驱动时，加到其上的电荷可以通过节点102电容地耦接到相交的感测线105b。这可以在感测线105b中导致可检测、可测量的电流和/或电压。驱动信号与在感测线105b上出现的信号之间的关系是耦接驱动线和感测线的电容的函数，如上所述，这可以受接近节点102的物体影响。如下面将更详细说明的，一个或多个电容感测电路103可以感测感测线105b并且确定每个节点处的电容。
如上所述，常规的驱动线105a被一次一条地驱动，而其他驱动线接地。针对每个驱动线105a重复该过程，直到驱动了所有的驱动线，并且从感测到的结果建立触摸图像(基于电容)。一旦驱动了所有的线105a，重复该序列以建立一系列触摸图像。然而，在本发明的一些实施例中，例如如下所述，可以同时或近乎同时驱动多个驱动线。本文中所用的“同时”包括严格同时的事件以及近乎同时的事件。例如，同时事件可以在大致同一时间开始、在大致同一时间结束、并且/或者在至少部分重叠的时间段内发生。
图3例示了对应于上述配置的互电容电路300的简化示意图。互电容电路300可以包括驱动线105a和感测线105b，驱动线105a和感测线105b空间地分开由此形成电容耦接节点102。驱动线105a可以电(例如，导电地)耦接到由电压源301表示的驱动电路104。感测线105b可以电耦接到电容感测电路103。在一些情况下，驱动线105a和感测线105b两者都可以包括一些寄生电容302。
如上所述，在没有导电物体接近驱动线105a和感测线105b的相交处时，节点102处的电容耦接保持相当恒定。然而，如果导电物体(例如，用户的手指、触笔等)接近节点102时，电容耦接(即，本地系统的电容)改变。电容耦接变化改变了由感测线105b载送的电流(和/或电压)。电容感测电路103可以记下节点102的电容变化和位置，并将该信息以某种形式报告给处理器106(图1)。
参照图1，感测电路103可以从触摸表面101获取数据，并将获取的数据提供给处理器106。在一些实施例中，感测电路103可以被配置为将原始数据(例如，对应于每个感测点102的电容值阵列)发送到处理器106。在其他实施例中，感测电路103可以被配置为处理原始数据本身，并将处理后的触摸数据递送到处理器106。在任一种情况下，处理器可以利用其所接收到的数据来控制计算机系统107以及/或者在该计算机系统107上运行的一个或多个应用程序的操作。这些线的各种实现在上述应用中加以了描述，并且包括具有触摸板和触摸屏的各种计算机系统。
在一些实施例中，感测电路103可以包括一个或多个微控制器，每个微控制器可以监视一个或多个感测点102。微控制器可以是专用集成电路(ASIC)，其与固件一起用于监视来自触摸敏感表面101的信号、处理所监视的信号、并且将该信息报告给处理器106。微控制器还可以是数字信号处理器(DSP)。在一些实施例中，感测电路103可以包括一个或多个传感器IC，这些传感器IC可以测量在每个感测线105b中的电容，并且将测得的值报告给计算机系统107中的处理器106或者主机控制器(未示出)。可以采用任意数量的传感器IC。例如，可以针对所有线采用一个传感器IC，或者可以针对单个线或一组线采用多个传感器IC。
图4以高级别例示了如上所述的用于操作多重触摸感测配置的处理400。该处理可以开始于块401，在块401处，驱动多个感测点102。在块401之后，处理流程可以进行到块402，在块402处读取来自感测点102的输出。例如，可以获得每个感测点102的电容值。在块402之后，处理可以进行到块403，在块403处，可以生成在一个时刻触摸的图像或其他形式数据(一个或多个信号)，然后可以对它们进行分析以确定触摸或接近触摸传感器的物体可能位于哪里。在块403之后，处理可以进行到块404，在块404处，可以将当前图像或信号与一个或多个过去的图像或信号进行比较，以针对每个物体确定形状、尺寸、位置、方向、速度、加速度、压力等中的一个或多个的变化。随后可以使用(在步骤405)该信息来在计算机系统107中执行动作，所述动作的范围从移动指示器或光标到基于复杂姿态的交互。
如上所述，可以通过同时驱动多个行来获得对多重触摸感测配置的改进操作。可以利用其采用多行激励的示例多重触摸感测设备500在图5中例示出，并且具有大体对应于图1所例示的感测配置101的附图标记。在给出的示例中，触摸敏感表面501具有16个驱动行505a、尽管可以采用任意数量的驱动行。这些驱动行例如可以被分为4组，例如，组1、组2、组3和组4，这些组中的每一个都包括4个驱动行505a。还可以采用其他数量的组和其他数量的每组行数。
在包括美国专利申请No.11/381,313(其通过引用被并入于此)的各种引用文献中描述了对多重触摸传感器阵列的扫描。参照图7简要地概述该处理。通常，周期性波形(例如，一序列方波脉冲)被顺序地施加到驱动行505a。例如，第一组脉冲701可被施加到行A，第二组脉冲702被施加到行B，第三组脉冲703被施加到行C，第四组脉冲704被施加到行D。这些周期性波形被电容性地耦接到感测线505b，通常在每个感测线上得到感测到的波形705。可以在预定时间段上积分感测到的波形705，以在每个节点502处测量驱动线505a与感测线505b之间的电容耦接。诸如滤波、解调等的其他处理也可以发生。
在感测到的波形705中，从t0到t1的时间段对应于行A的激励。在该时间段上对感测波形的积分得到数值X1，该数值X1可对应于行A与所感测的列的相交处的节点的电容。类似地，从t1到t2的时间段对应于行B，从t2到t3的时间段对应于行C，并且从t3到t4的时间段对应于行D。在这些时间段的每一个上对感测波形进行积分可以给出对应于行B、C和D与所感测列的相交处的节点的电容的数值X2、X3和X4。
图8例示了其中两条线可被同时激励的多线激励配置。具体地，可以利用波形801和802同时(或近乎同时)激励行A和行B。正如所见，波形801的相位可以被调整，例如在第四个脉冲之后。结果，波形801和802中的其余脉冲可以是180°异相。类似地，可以利用波形806和807同时(或近乎同时)激励行C和行D。再次，波形806的相位可以被调整，例如在第四个脉冲之后。结果，波形806和807中的其余脉冲可以是180°异相。以上参照符号+和-可以容易地理解波形之间的相位关系。
与以上参照图7描述的示例不同，t0到t1、t1到t2、t2到t3以及t3到t4的时间段不再唯一地对应于行A至D。类似地，在这些时间段上积分感测到的波形(未示出)所得的测量值X1、X2、X3和X4不再唯一地对应于某一特定行与所感测的列的相交处的节点的电容。在图8的示例中，时间段t0到t1和t1到t2与其相应的测量值X1和X2一起对应于行A和行B两者。类似地，时间段t2到t3和t3到t4与其相应的测量值X3和X4一起对应于行C和行D两者。然而，由于激励波形801与802之间有相位差，所以可以将仅激励行A和仅激励行B的效果彼此隔离。类似地，由于激励波形806与807之间有相位差，所以可以将仅激励行C和仅激励行D的效果彼此隔离。
具体地，由于激励波形801和802在时间段t0到t1上同相而在时间段t1到t2上异相，因此积分结果X1与积分结果X2相加(即，X1+X2)可以得到对应于行A与所感测的线的相交处的节点的电容的值，即，只有行A的激励效果。类似地，积分结果X1减去积分结果X2(即，X1-X2)可以得到对应于在行B与所感测的线的相交处的节点的电容的值，即，只有行B的激励效果。
同样适用于行C和D。由于激励波形806和807在时间段t2到t3上同相而在时间段t3到t4上异相，因此积分结果X3与积分结果X4相加(即，X3+X4)可以得到对应于行C与所感测的线的相交处的节点的电容的值，即，只有行C的激励效果。类似地，积分结果X3减去解调结果X4(即，X3-X4)可以得到对应于在行D与所感测的线的相交处的节点的电容的值，即，只有行D的激励效果。
图9例示了其中四条线被同时激励的示例性多线激励配置。在从t0到t1的第一时段期间，施加到行A至D的周期性波形901-904是同相的。在时间t1，例如在第四脉冲之后，波形901和902的相位可被调整为使得波形901和902相对于波形903和904为180°异相。类似地，在时间t2，例如在下四个脉冲之后，波形901和903的相位被调整。这可以使得波形901和904相对于波形902和903为180°异相。最后，在时间t3，例如在再四个脉冲之后，波形901和902的相位可再次被调整。这可以使得波形901和903相对于波形902和904为180°异相。参照图中的符号+和-可以理解各种波形之间的相位关系。
与在之前的示例中一样，波形901至904之间的相位关系使得每个单独行上的激励的效果作为测得积分值的数学组合而被隔离出。具体地，可以通过求和X1+X2+X3+X4来确定对行A的激励的效果。可以通过X1+X2-X3-X4来确定对行B的激励的效果。可以通过X1-X2-X3+X4来确定对行C的激励的效果。可以通过X1-X2+X3-X4来确定对行D的激励的效果。
参照图6中的流程图可以进一步理解具有多行激励的多重触摸感测配置500的操作600的过程。首先，在601处可以获得一组行的DC分量。在图8的示例中，可以通过在时间段t0到t1上积分感测波形来获得包括行A和B的一组行的DC分量。该DC分量可以指示(有些粗略地)在对应于触摸表面501的特定区域的给定组，例如行A和B内是否存在任何触摸。如果在判断块602处确定在给定组/区域内没有触摸，则可以类似地扫描下一组(例如，行C和D)。这例如可以通过实现计数器来实现(603)。如果在判断块602处确定如给定组的DC分量所指示的在该给定组/区域内存在触摸，则在块604处执行对该组的精细扫描。可以组合精细扫描的结果以提取对应于每一行的信号，如上所述。一旦扫描了所有组，则重复该处理。
返回到图5和图6，可以根据前面段落描述的原理来扫描每组行。多重触摸感测配置可以包括任意数量的行和任意数量的组。在一些实施例中，多重触摸感测配置可以采用在单个组上的多线激励，即，可以同时或近乎同时激励设备的所有线。另外，尽管关于行和列进行了描述，但是驱动线和感测线可以布置为任何几何配置。
如上所述的多线激励可以提供很多优点。例如，当同时激励多个行时，可以减小激励电压。具体地，多行激励的加法效果可以针对“每行”更低激励电压得到相同的感测波形振幅。例如，采用18Vpp(峰峰伏特)激励电压的单线扫描配置可以在同时激励两条线的情况下采用9Vpp激励电压，或者在同时激励四条线的情况下采用4.5Vpp激励电压等等，以获得类似的感测波形振幅。
减小激励电压使得可以从驱动器芯片直接提供驱动信号，而无需高电压升压器。减小的电压还有助于避免散射场和晶体管击穿问题。减小的电压还可以导致功耗降低。由于功率是电压的平方，电压减小4倍(针对四行同时激励)将每行的功率减小16倍。然而，由于有四行在被驱动，所以实际功率节省仅为4倍。然而，如上所述，在对区域的DC扫描期间没有检测到触摸时，通过不进行精细扫描也可以节省额外的功率。
上述多行激励技术的变型可以被称作差动多行激励。参照下表可理解差动多行激励，下表示出了对于以上图9中的多行激励示例的激励波形的极性(多行激励)与差动多行激励示例的激励波形的极性(差动多行激励)的比较。差动多行激励通常可以对应于上述多行激励示例，只是激励波形的极性可以被如下所示地重新配置。
如从上表所见，在多行激励示例中，施加到行A的净极性可以具有4倍于激励波形的振幅的DC分量。类似地，第一时间段(其间，可以测得值X1)还可以具有4倍于激励波形的振幅的净DC分量。在差动多行激励示例中，极性被重新配置为使得没有行没有时间段具有DC分量。没有DC分量可以得到很多优点，包括允许电荷感测电路在零偏差下工作、自动基线移除、固有质心计算、以及增大的信噪比。在一些实施例中，可能期望同时激励传感器的所有行(即，只有一组行)，因为激励中缺少DC分量所以组之间的DC偏差的差值可以丢掉。
多行激励概念的其他变型包括基于相位或频率的多行激励。在前面的示例中，可以利用具有极性(相位)差的波形来激励不同行，以使得在总感测波形中可以隔离给定行的效果。另一个允许这类隔离的方式(示出在图11中)是利用具有不同频率的激励波形来激励组中的每一行。一个或多个解调电路可以分离感测波形中的这些频率，以使得可以隔离每个激励线的贡献。在很多实施例中，已经存在用于滤除噪声的解调器电路。
参照图12可以理解根据本文所描述的原理的对于激励波形的其他可能示例。定时信号1201可以定义激励时间窗口。每条线可以具有一个对应的定时信号。在激励时间窗口期间，例如在信号1201为高时，激励波形可被施加到对应的线(或多个线)。该激励波形可以采取多种形式，包括方波、正弦波、指数衰减正弦波、脉冲正弦波，等等。
本文所采用的同时激励是指至少一个激励在同一时间段(例如，可以包括一个或多个任意形状的脉冲及任意组合的窗口)期间被施加到至少两个线。换言之，同时激励涉及至少两个线，该至少两个线具有至少在时间上部分重叠的激励窗口。例如，在图12B中，由定时信号1201a定义的行A的激励窗口可以与由定时信号1201b定义的行B的激励窗口在同一时间开始、延伸相同持续时间、并且在同一时间结束。另选地，如图12C所例示的，行A的激励窗口(由定时信号1201a定义)和行B的激励窗口(由定时信号1201b定义)可以在不同时间开始和结束，但是具有至少一些重叠部分。再另选地，如图12D所示，行A的激励窗口(由定时信号1201a定义)和行B的激励窗口(由定时信号1201b定义)可以在同一时间开始但是在不同时间结束。又另选地，如图12E所例示的，行A的激励窗口(由定时信号1201a定义)和行B的激励窗口(由定时信号1201b定义)在不同时间开始但是在同一时间结束。这些不同配置还可以扩展到大于两个的行数并且具有完全的灵活性，只要在至少一些行之间存在一些激励重叠。
本文所描述的原理可用于设计各种电子设备和计算机系统的输入设备。这些电子设备和计算机系统可以是图10中所例示的各种类型中的任一种，包括台式计算机1001、笔记本计算机1002、书写板计算机1003、手持计算机1004、个人数字助理1005、媒体播放器1006、移动电话1007等。另外地，电子设备和计算机系统可以是这些类型的组合，例如，作为个人数字助理、媒体播放器以及移动电话的组合的设备。
对上述实施例的其他改变、变换以及组合也是可以的。例如，可以基于红外/光学感测配置来设计多重触摸和接近系统，该红外/光学感测配置依赖于周期性波形激励和来自手部位或其他触摸物体的反射来检测触摸和/或悬停事件。尽管参照电容性系统描述了本发明的原理，但是本发明的原理可同样适用于其中触摸或接近感测取决于从周期性激励波形提取出的信息的任何系统。因此下面的权利要求旨在被解释为包括对以上描述的所有改变、变换、组合以及等同物。

Claims (17)

1.一种触摸感测设备，包括：
基于互电容的触摸敏感表面，该触摸敏感表面包括多个感测点，每个感测点与多个驱动线中的一个和多个感测线中的一个相关联；
驱动电路，该驱动电路在一时间段期间将驱动信号同时施加到所述多个驱动线中的两个，其中，所述驱动信号具有不同的频率；
感测电路，该感测电路检测在至少一个感测线中的感测信号，所述感测信号通过一个或多个物体与和所述感测线相关的一个或多个感测点的触摸或接近而与驱动信号相关，以及该感测电路从所述感测信号得到所述一个或多个感测点的触摸信息，其中所述感测电路包括一个或多个解调电路，用于从感测信号分离所述不同的频率。
2.根据权利要求1所述的触摸感测设备，其中，所述感测电路包括至少一个微控制器。
3.根据权利要求2所述的触摸感测设备，其中，所述至少一个微控制器是专用集成电路(ASIC)。
4.根据权利要求2所述的触摸感测设备，其中，所述至少一个微控制器是数字信号处理器(DSP)。
5.根据权利要求2所述的触摸感测设备，其中，所述感测电路通过在时间上积分所述感测信号而从所述感测信号得到多个值。
6.根据权利要求1所述的触摸感测设备，其中，所述感测电路通过从所述感测信号得到多个值并且从所述多个值的数学组合得到触摸信息，来从所述感测信号得到触摸信息。
7.根据权利要求1所述的触摸感测设备，其中，所述触摸信息包括在每个感测点处的触摸值阵列。
8.根据权利要求7所述的触摸感测设备，其中，所述触摸值对应于在每个感测点处的电容测量结果。
9.根据权利要求1所述的触摸感测设备，其中，所述触摸敏感表面是触摸屏的一部分。
10.一种电子设备，该电子设备具有根据权利要求1、5或6中的任一项所述的触摸感测设备作为输入设备。
11.根据权利要求10所述的电子设备，其中，该电子设备是台式计算机、书写板计算机以及笔记本计算机之一。
12.根据权利要求10所述的电子设备，其中，所述电子设备包括手持计算机、个人数字助理、媒体播放器以及移动电话中的至少一个。
13.一种移动电话，该移动电话具有根据权利要求1、5或6中任一项所述的触摸感测设备作为输入设备。
14.一种用于驱动具有多个导电线的基于互电容的触摸敏感模块的方法，该方法包括：
在一时间段期间利用驱动信号同时激励所述多个导电线中的两个，其中所述驱动信号具有不同的频率；
感测在所述多个导电线的至少一个上的至少一个感测信号，其中所述感测信号与在所述多个导电线附近的至少一个物体的接触或接近事件相关；
从感测信号分离所述不同的频率；以及
从所述感测信号得到触摸信息。
15.根据权利要求14所述的方法，其中，从所述感测信号得到触摸信息包括：
从所述感测信号得到多个值；以及
从所述多个值的数学组合得到触摸信息。
16.根据权利要求15所述的方法，其中，从所述感测信号得到多个值包括在时间上积分所述感测信号。
17.根据权利要求14所述的方法，其中，所述触摸信息包括在多个感测点中的每一个感测点处的触摸值阵列，每一个感测点与所述多个导电线中的至少一个驱动线和所述多个导电线中的至少一个感测线相关联。
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Families Citing this family (365)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9722766D0 (en) 1997-10-28 1997-12-24 British Telecomm Portable computers
US7663607B2 (en) 2004-05-06 2010-02-16 Apple Inc. Multipoint touchscreen
US8144125B2 (en) 2006-03-30 2012-03-27 Cypress Semiconductor Corporation Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
US8040142B1 (en) 2006-03-31 2011-10-18 Cypress Semiconductor Corporation Touch detection techniques for capacitive touch sense systems
US8654083B2 (en) 2006-06-09 2014-02-18 Apple Inc. Touch screen liquid crystal display
US8552989B2 (en) 2006-06-09 2013-10-08 Apple Inc. Integrated display and touch screen
CN104965621B (zh) 2006-06-09 2018-06-12 苹果公司 触摸屏液晶显示器及其操作方法
US8547114B2 (en) 2006-11-14 2013-10-01 Cypress Semiconductor Corporation Capacitance to code converter with sigma-delta modulator
US7812827B2 (en) 2007-01-03 2010-10-12 Apple Inc. Simultaneous sensing arrangement
US7920129B2 (en) 2007-01-03 2011-04-05 Apple Inc. Double-sided touch-sensitive panel with shield and drive combined layer
US8493330B2 (en) 2007-01-03 2013-07-23 Apple Inc. Individual channel phase delay scheme
US9710095B2 (en) 2007-01-05 2017-07-18 Apple Inc. Touch screen stack-ups
US8525799B1 (en) * 2007-04-24 2013-09-03 Cypress Semiconductor Conductor Detecting multiple simultaneous touches on a touch-sensor device
US8144126B2 (en) 2007-05-07 2012-03-27 Cypress Semiconductor Corporation Reducing sleep current in a capacitance sensing system
US7876311B2 (en) * 2007-06-13 2011-01-25 Apple Inc. Detection of low noise frequencies for multiple frequency sensor panel stimulation
US9772667B2 (en) 2007-06-13 2017-09-26 Apple Inc. Integrated multi-touch surface having varying sensor granularity
US20090009483A1 (en) * 2007-06-13 2009-01-08 Apple Inc. Single-chip touch controller with integrated drive system
US8493331B2 (en) * 2007-06-13 2013-07-23 Apple Inc. Touch detection using multiple simultaneous frequencies
US9500686B1 (en) 2007-06-29 2016-11-22 Cypress Semiconductor Corporation Capacitance measurement system and methods
KR101345755B1 (ko) * 2007-09-11 2013-12-27 삼성전자주식회사 휴대용 단말기의 조작제어장치 및 그 방법
US8633915B2 (en) 2007-10-04 2014-01-21 Apple Inc. Single-layer touch-sensitive display
JP4941938B2 (ja) * 2007-10-10 2012-05-30 三菱自動車工業株式会社 容量変化検出回路、タッチパネル及び判定方法
US8232977B2 (en) * 2007-11-14 2012-07-31 N-Trig Ltd. System and method for detection with a digitizer sensor
EP2075678A3 (en) * 2007-12-27 2013-03-13 TPO Displays Corp. Position sensing display
US20090174676A1 (en) 2008-01-04 2009-07-09 Apple Inc. Motion component dominance factors for motion locking of touch sensor data
US8525798B2 (en) 2008-01-28 2013-09-03 Cypress Semiconductor Corporation Touch sensing
US8432364B2 (en) * 2008-02-25 2013-04-30 Apple Inc. Charge recycling for multi-touch controllers
US8319505B1 (en) 2008-10-24 2012-11-27 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
US20110043478A1 (en) * 2008-02-27 2011-02-24 Kenichi Matsushima Proximity detection device and proximity detection method
US8797277B1 (en) * 2008-02-27 2014-08-05 Cypress Semiconductor Corporation Method for multiple touch position estimation
US8358142B2 (en) 2008-02-27 2013-01-22 Cypress Semiconductor Corporation Methods and circuits for measuring mutual and self capacitance
JP5108567B2 (ja) * 2008-03-11 2012-12-26 アルプス電気株式会社 入力装置
US20160209963A1 (en) * 2008-03-19 2016-07-21 Egalax_Empia Technology Inc. Touch processor and method
TW200943155A (en) * 2008-04-02 2009-10-16 Elan Microelectronics Corp Capacitor-type touch device and data transmission method applied to the capacitor-type touch device
US9823784B2 (en) * 2008-04-10 2017-11-21 Atmel Corporation Capacitive touch screen with noise suppression
EP2291729B1 (en) * 2008-04-30 2013-06-05 N-Trig Ltd. Multi-touch detection
JP4770889B2 (ja) * 2008-08-01 2011-09-14 ソニー株式会社 タッチパネルおよびその動作方法ならびに電子機器およびその動作方法
JP5229887B2 (ja) * 2008-08-06 2013-07-03 株式会社ワコム 位置検出装置
US8963843B2 (en) * 2008-08-28 2015-02-24 Stmicroelectronics Asia Pacific Pte. Ltd. Capacitive touch sensor system
US20100060611A1 (en) * 2008-09-05 2010-03-11 Sony Ericsson Mobile Communication Ab Touch display with switchable infrared illumination for touch position determination and methods thereof
US20100059294A1 (en) * 2008-09-08 2010-03-11 Apple Inc. Bandwidth enhancement for a touch sensor panel
US9606663B2 (en) 2008-09-10 2017-03-28 Apple Inc. Multiple stimulation phase determination
US8237667B2 (en) 2008-09-10 2012-08-07 Apple Inc. Phase compensation for multi-stimulus controller
US9348451B2 (en) 2008-09-10 2016-05-24 Apple Inc. Channel scan architecture for multiple stimulus multi-touch sensor panels
US8592697B2 (en) 2008-09-10 2013-11-26 Apple Inc. Single-chip multi-stimulus sensor controller
US8659556B2 (en) * 2008-09-10 2014-02-25 Apple Inc. Advanced receive channel architecture
JP5216495B2 (ja) * 2008-09-16 2013-06-19 株式会社ジャパンディスプレイウェスト 接触検出装置および表示装置
KR20110067039A (ko) * 2008-09-24 2011-06-20 쓰리엠 이노베이티브 프로퍼티즈 컴파니 상호 정전용량 측정 회로 및 방법
US8321174B1 (en) 2008-09-26 2012-11-27 Cypress Semiconductor Corporation System and method to measure capacitance of capacitive sensor array
US8368654B2 (en) * 2008-09-30 2013-02-05 Apple Inc. Integrated touch sensor and solar assembly
US8610009B2 (en) * 2008-10-22 2013-12-17 Atmel Corporation Capacitive touch sensors
US11449168B2 (en) * 2008-10-24 2022-09-20 Cypress Semiconductor Corporation Touch surface scanning method and device
TW201017501A (en) * 2008-10-31 2010-05-01 Elan Microelectronics Corp The control circuit, method, and applications of capacitive touch panel
US8487639B1 (en) 2008-11-21 2013-07-16 Cypress Semiconductor Corporation Receive demodulator for capacitive sensing
SE533704C2 (sv) * 2008-12-05 2010-12-07 Flatfrog Lab Ab Pekkänslig apparat och förfarande för drivning av densamma
US8711121B2 (en) * 2008-12-12 2014-04-29 Wacom Co., Ltd. Architecture and method for multi-aspect touchscreen scanning
EP2204726A1 (en) 2008-12-30 2010-07-07 STMicroelectronics R&D Oy Touch screen controller
TWI397005B (zh) * 2009-01-07 2013-05-21 Elan Microelectronics Corp Ghost Detection Method for Capacitive Touchpad
US8922521B2 (en) 2009-02-02 2014-12-30 Apple Inc. Switching circuitry for touch sensitive display
US9261997B2 (en) * 2009-02-02 2016-02-16 Apple Inc. Touch regions in diamond configuration
US8854294B2 (en) * 2009-03-06 2014-10-07 Apple Inc. Circuitry for independent gamma adjustment points
US8508542B2 (en) * 2009-03-06 2013-08-13 Apple Inc. Systems and methods for operating a display
US8866500B2 (en) * 2009-03-26 2014-10-21 Cypress Semiconductor Corporation Multi-functional capacitance sensing circuit with a current conveyor
US8593410B2 (en) 2009-04-10 2013-11-26 Apple Inc. Touch sensor panel design
JP2010287215A (ja) * 2009-05-11 2010-12-24 Ricoh Co Ltd 情報入力装置、画像形成装置、入力制御方法、及び入力制御プログラムを記録した記録媒体
CN101887333A (zh) * 2009-05-11 2010-11-17 智点科技（深圳）有限公司 一种数字式电容触控屏
JP5178631B2 (ja) * 2009-05-26 2013-04-10 株式会社ジャパンディスプレイウェスト タッチセンサ、表示装置および電子機器
US9417739B2 (en) * 2009-05-29 2016-08-16 3M Innovative Properties Company High speed multi-touch touch device and controller therefor
JP5396167B2 (ja) * 2009-06-18 2014-01-22 株式会社ワコム 指示体検出装置及び指示体検出方法
JP5295008B2 (ja) * 2009-06-18 2013-09-18 株式会社ワコム 指示体検出装置
US8957874B2 (en) * 2009-06-29 2015-02-17 Apple Inc. Touch sensor panel design
US20110007019A1 (en) * 2009-07-07 2011-01-13 Nuvoton Technology Corporation Systems and methods for using tft-based lcd panels as capacitive touch sensors
AU2012227270B2 (en) * 2009-07-10 2015-01-15 Apple Inc. Negative pixel compensation
US8482544B2 (en) * 2009-07-10 2013-07-09 Apple Inc. Negative pixel compensation
TWI407354B (zh) * 2009-07-10 2013-09-01 Elan Microelectronics Corp Control Circuit and Method of Capacitive Touchpad and Its Application
US9753597B2 (en) * 2009-07-24 2017-09-05 Cypress Semiconductor Corporation Mutual capacitance sensing array
CN101963855B (zh) * 2009-07-24 2012-11-21 群康科技(深圳)有限公司 用于触摸屏的多点触摸辨识方法
US8723827B2 (en) 2009-07-28 2014-05-13 Cypress Semiconductor Corporation Predictive touch surface scanning
CN101996008B (zh) * 2009-08-10 2014-12-03 义隆电子股份有限公司 电容式触控板的控制电路与方法及其应用
JP5746171B2 (ja) 2009-08-12 2015-07-08 サーク・コーポレーション タッチパッド上における多重接触検知のための同時時間直交測定パターン
US8334849B2 (en) * 2009-08-25 2012-12-18 Pixart Imaging Inc. Firmware methods and devices for a mutual capacitance touch sensing device
JP2011047774A (ja) * 2009-08-26 2011-03-10 Seiko Instruments Inc 近接検出装置と近接検出方法
US9036650B2 (en) * 2009-09-11 2015-05-19 Apple Inc. Automatic low noise frequency selection
US8970506B2 (en) * 2009-09-11 2015-03-03 Apple Inc. Power management for touch controller
TWI463382B (zh) * 2009-09-14 2014-12-01 Raydium Semiconductor Corp 觸控感測裝置及觸控感測方法
CN102033667B (zh) * 2009-09-24 2013-09-04 瑞鼎科技股份有限公司 触控感测装置及触控感测方法
EP2333642A1 (en) * 2009-09-27 2011-06-15 Inferpoint Systems Limited Touch control screen
CN102033637B (zh) * 2009-09-29 2013-02-13 上海天马微电子有限公司 触摸屏位置检测方法
US9753586B2 (en) * 2009-10-08 2017-09-05 3M Innovative Properties Company Multi-touch touch device with multiple drive frequencies and maximum likelihood estimation
TWI464625B (zh) * 2009-10-09 2014-12-11 Egalax Empia Technology Inc 分析位置的方法與裝置
TWI410833B (zh) * 2009-10-13 2013-10-01 Silicon Integrated Sys Corp 具有攜帶相位資訊的電容感應電路的電子裝置和其方法
JP2011086179A (ja) * 2009-10-16 2011-04-28 Sony Corp 情報入力装置、情報入力方法、情報入出力装置、情報入力プログラムおよび電子機器
TWI410849B (zh) * 2009-10-19 2013-10-01 Orise Technology Co Ltd 電容式觸控面板的感測電路
US9041682B2 (en) * 2009-10-23 2015-05-26 Atmel Corporation Driving electrodes with different phase signals
TWI410834B (zh) * 2009-10-30 2013-10-01 Quanta Comp Inc 利用暫存影像的基於影像之座標輸入裝置及方法
US8773366B2 (en) * 2009-11-16 2014-07-08 3M Innovative Properties Company Touch sensitive device using threshold voltage signal
WO2011063856A1 (en) * 2009-11-30 2011-06-03 Nokia Corporation Matrix sensor network and method for selecting a group of rows and reading columns of the matrix sensor network
WO2011063859A1 (en) * 2009-11-30 2011-06-03 Nokia Corporation Touch position detection method and apparatus
US20110134050A1 (en) * 2009-12-07 2011-06-09 Harley Jonah A Fabrication of touch sensor panel using laser ablation
JP5295090B2 (ja) * 2009-12-18 2013-09-18 株式会社ワコム 指示体検出装置
US8411066B2 (en) 2010-01-05 2013-04-02 3M Innovative Properties Company High speed noise tolerant multi-touch touch device and controller therefor
CN101840294B (zh) * 2010-01-21 2012-01-18 宸鸿科技(厦门)有限公司 一种投射电容式触控面板的扫描方法
TWI501123B (zh) * 2010-02-09 2015-09-21 Sitronix Technology Corp A scanning method that is used to increase the scanning speed of the touch panel
CN105045423B (zh) 2010-02-26 2020-09-29 辛纳普蒂克斯公司 修改解调以避免干扰
TW201131460A (en) * 2010-03-04 2011-09-16 Chunghwa Picture Tubes Ltd Touch panel apparatus with shared output pin configuration and method thereof
JP5496735B2 (ja) * 2010-03-30 2014-05-21 株式会社ワコム 指示体位置検出装置及び指示体位置検出方法
TWI416391B (zh) * 2010-04-21 2013-11-21 Waltop Int Corp 紅外線輸入裝置及位置掃描方法
JP5545009B2 (ja) * 2010-04-28 2014-07-09 ソニー株式会社 センサ装置および情報表示装置
US9898121B2 (en) 2010-04-30 2018-02-20 Synaptics Incorporated Integrated capacitive sensing and displaying
US8933907B2 (en) * 2010-04-30 2015-01-13 Microchip Technology Incorporated Capacitive touch system using both self and mutual capacitance
TWI463358B (zh) * 2010-05-07 2014-12-01 Silicon Integrated Sys Corp 用於多點觸控感測裝置之鬼點去除方法
EP2569687A2 (en) * 2010-05-14 2013-03-20 Elo Touch Solutions, Inc. System and method for detecting locations of touches on a touch sensor
US9727175B2 (en) 2010-05-14 2017-08-08 Elo Touch Solutions, Inc. System and method for detecting locations of touches on a projected capacitive touch sensor
WO2011149750A2 (en) 2010-05-25 2011-12-01 3M Innovative Properties Company High speed low power multi-touch touch device and controller therefor
TWI439892B (zh) * 2010-07-19 2014-06-01 Princeton Technology Corp 偵測觸控面板之觸控點之方法及觸控裝置
US20120019449A1 (en) * 2010-07-26 2012-01-26 Atmel Corporation Touch sensing on three dimensional objects
US9652088B2 (en) 2010-07-30 2017-05-16 Apple Inc. Fabrication of touch sensor panel using laser ablation
WO2012027005A1 (en) * 2010-08-23 2012-03-01 Cypress Semiconductor Corporation Mutual capacitance sensing circuits, methods and systems
US9013441B2 (en) * 2010-08-24 2015-04-21 Cypress Semiconductor Corporation Smart scanning for a capacitive sensing array
US9285902B1 (en) * 2010-08-25 2016-03-15 Parade Technologies, Ltd. Multi-phase scanning
TWI502416B (zh) * 2010-08-25 2015-10-01 Himax Tech Ltd 觸控面板的感測裝置以及其感應方法
US8890854B2 (en) * 2010-08-27 2014-11-18 Apple Inc. Touch sensor panel calibration
US8884910B2 (en) * 2010-08-30 2014-11-11 Microsoft Corporation Resistive matrix with optimized input scanning
US8605054B2 (en) * 2010-09-02 2013-12-10 Texas Instruments Incorporated Touch-sensitive interface and method using orthogonal signaling
US8823657B2 (en) * 2010-09-07 2014-09-02 Apple Inc. Master/slave control of touch sensing
US8890817B2 (en) * 2010-09-07 2014-11-18 Apple Inc. Centralized processing of touch information
US10019119B2 (en) 2010-09-09 2018-07-10 3M Innovative Properties Company Touch sensitive device with stylus support
US9823785B2 (en) 2010-09-09 2017-11-21 3M Innovative Properties Company Touch sensitive device with stylus support
US9389724B2 (en) 2010-09-09 2016-07-12 3M Innovative Properties Company Touch sensitive device with stylus support
US8730204B2 (en) 2010-09-16 2014-05-20 Synaptics Incorporated Systems and methods for signaling and interference detection in sensor devices
JP5667824B2 (ja) 2010-09-24 2015-02-12 株式会社ジャパンディスプレイ タッチ検出装置およびその駆動方法、タッチ検出機能付き表示装置、ならびに電子機器
CN201790354U (zh) * 2010-09-25 2011-04-13 唐文姬 触控多功能制冷杯座
TWI420367B (zh) * 2010-09-29 2013-12-21 Raydium Semiconductor Corp 在觸控面板上偵測出複數個觸碰點的偵測方法與偵測裝置
TWI408589B (zh) * 2010-11-17 2013-09-11 Pixart Imaging Inc 具有省電機制的觸控系統與光學觸控系統
US9310923B2 (en) 2010-12-03 2016-04-12 Apple Inc. Input device for touch sensitive devices
TWM410278U (en) * 2010-12-14 2011-08-21 Derlead Invest Ltd Capacitive touch panel
US8804056B2 (en) 2010-12-22 2014-08-12 Apple Inc. Integrated touch screens
WO2012090805A1 (ja) * 2010-12-28 2012-07-05 シャープ株式会社 表示装置
CN102541337B (zh) * 2010-12-28 2015-01-07 杜彦宏 多阶段扫描触碰位置侦测装置及方法
TWI590133B (zh) * 2010-12-31 2017-07-01 樂金顯示科技股份有限公司 驅動觸控感測器之設備及方法
KR101715858B1 (ko) * 2010-12-31 2017-03-13 엘지디스플레이 주식회사 터치 센서 구동 장치
US20120182252A1 (en) * 2011-01-17 2012-07-19 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Differential Capacitive Touchscreen or Touch Panel
US9310940B2 (en) * 2011-01-17 2016-04-12 Pixart Imaging Inc. Capacitive touchscreen or touch panel with fingerprint reader
JP5639487B2 (ja) * 2011-01-18 2014-12-10 アルプス電気株式会社 入力装置
US8635560B2 (en) * 2011-01-21 2014-01-21 Blackberry Limited System and method for reducing power consumption in an electronic device having a touch-sensitive display
TWI478018B (zh) * 2011-01-21 2015-03-21 Egalax Empia Technology Inc 觸控面板感測器斷線檢測方法及裝置
TWI573048B (zh) * 2011-01-26 2017-03-01 奇景光電股份有限公司 感應裝置與感應模組
EP2492784B1 (en) 2011-02-25 2021-02-24 LG Display Co., Ltd. Touch sensor integrated display device
GB201103346D0 (en) 2011-02-28 2011-04-13 Dev Ltd Improvements in or relating to optical navigation devices
TWI571788B (zh) * 2011-03-21 2017-02-21 宸鴻光電科技股份有限公司 觸控感測裝置及其掃描方法
US9268441B2 (en) 2011-04-05 2016-02-23 Parade Technologies, Ltd. Active integrator for a capacitive sense array
US9405409B1 (en) 2011-04-05 2016-08-02 Parade Technologies, Ltd. Method and apparatus for pipelined conversions in touch sensing systems
WO2012147634A1 (ja) 2011-04-28 2012-11-01 シャープ株式会社 入力装置、接触位置検出方法、および入力装置を備える表示装置
EP2525275A1 (en) * 2011-05-20 2012-11-21 Research In Motion Limited Electronic device with capacitive touch-sensitive display
US8850541B2 (en) * 2011-05-27 2014-09-30 Delfigo Corporation Visual authentication and authorization for mobile devices
US9519763B1 (en) 2011-05-27 2016-12-13 Delfigo Corporation Optical cognition and visual authentication and authorization for mobile devices
FR2976688B1 (fr) 2011-06-16 2021-04-23 Nanotec Solution Dispositif et procede pour generer une alimentation electrique dans un systeme electronique avec un potentiel de reference variable.
US8711570B2 (en) 2011-06-21 2014-04-29 Apple Inc. Flexible circuit routing
TWI518565B (zh) 2011-06-22 2016-01-21 夏普股份有限公司 觸控面板系統及電子機器
US8902192B2 (en) 2011-06-22 2014-12-02 Sharp Kabushiki Kaisha Touch panel system and electronic device
JP5539269B2 (ja) 2011-06-27 2014-07-02 シャープ株式会社 静電容量値分布検出方法、静電容量値分布検出回路、タッチセンサシステム、及び情報入出力機器
TWI502418B (zh) 2011-06-22 2015-10-01 Sharp Kk 觸摸面板系統及電子裝置
JP5350437B2 (ja) 2011-06-27 2013-11-27 シャープ株式会社 タッチセンサシステム
US9329703B2 (en) 2011-06-22 2016-05-03 Apple Inc. Intelligent stylus
JP5384598B2 (ja) 2011-09-09 2014-01-08 シャープ株式会社 静電容量型タッチセンサパネル、及びこれを用いた静電容量型タッチセンサシステム、情報入出力装置
US8928635B2 (en) 2011-06-22 2015-01-06 Apple Inc. Active stylus
TWI499957B (zh) 2011-06-22 2015-09-11 Sharp Kk 觸摸面板系統及電子裝置
US8743080B2 (en) 2011-06-27 2014-06-03 Synaptics Incorporated System and method for signaling in sensor devices
US9830026B2 (en) 2011-06-29 2017-11-28 Sharp Kabushiki Kaisha Touch sensor system and electronic device
US8624871B2 (en) * 2011-07-15 2014-01-07 Texas Instruments Incorporated Method and apparatus for sensing and scanning a capacitive touch panel
US8487909B2 (en) 2011-07-27 2013-07-16 Cypress Semiconductor Corporation Method and apparatus for parallel scanning and data processing for touch sense arrays
US9052782B2 (en) * 2011-07-29 2015-06-09 Synaptics Incorporated Systems and methods for voltage gradient sensor devices
US20130050132A1 (en) * 2011-08-26 2013-02-28 Analog Devices, Inc. Techniques for capacitive touch screen control
EP2562627B1 (en) * 2011-08-26 2016-11-09 LG Display Co., Ltd. Touch sensing device
CN103765354B (zh) 2011-08-30 2017-03-15 Nlt科技股份有限公司 电子设备、静电电容传感器和触摸面板
US8847898B2 (en) * 2011-09-07 2014-09-30 Atmel Corporation Signal-to-noise ratio in touch sensors
US9612265B1 (en) * 2011-09-23 2017-04-04 Cypress Semiconductor Corporation Methods and apparatus to detect a conductive object
TWI494837B (zh) 2011-10-14 2015-08-01 Egalax Empia Technology Inc 觸摸屏的偵測裝置與方法
JP5389888B2 (ja) 2011-10-25 2014-01-15 シャープ株式会社 タッチパネルシステムおよび電子機器
US20130106709A1 (en) * 2011-10-28 2013-05-02 Martin John Simmons Touch Sensor With User Identification
US9176621B2 (en) * 2011-11-18 2015-11-03 Synaptics Incorporated Flexible timing and multiplexing for a display device comprising an integrated capacitive sensing device
TWI444880B (zh) * 2011-12-14 2014-07-11 Cando Corp Ltd 觸碰點偵測方法
TWI599936B (zh) * 2011-12-19 2017-09-21 禾瑞亞科技股份有限公司 電容式書寫裝置
JP5296185B2 (ja) 2011-12-21 2013-09-25 シャープ株式会社 タッチセンサシステム
FR2985049B1 (fr) 2011-12-22 2014-01-31 Nanotec Solution Dispositif de mesure capacitive a electrodes commutees pour interfaces tactiles et sans contact
US8766949B2 (en) 2011-12-22 2014-07-01 Synaptics Incorporated Systems and methods for determining user input using simultaneous transmission from multiple electrodes
TWI475433B (zh) * 2011-12-28 2015-03-01 Chunghwa Picture Tubes Ltd 增加報點率的觸控系統及增加觸控系統報點率的方法
US9870103B2 (en) * 2012-01-03 2018-01-16 Silicon Laboratories Inc. Controller and method for controlling a capacitive touch screen or the like
US9727159B2 (en) 2012-01-03 2017-08-08 Vadim Konradi Controller and method for controlling a capacitive touch screen or the like
US20130176273A1 (en) * 2012-01-09 2013-07-11 Broadcom Corporation Fast touch detection in a mutual capacitive touch system
KR101338285B1 (ko) * 2012-01-12 2013-12-09 주식회사 하이딥 터치 패널에서 터치를 감지하기 위한 방법, 장치 및 컴퓨터 판독 가능 기록 매체
US20130181935A1 (en) * 2012-01-18 2013-07-18 Research In Motion Limited Device and accessory with capacitive touch point pass-through
US9143704B2 (en) 2012-01-20 2015-09-22 Htc Corporation Image capturing device and method thereof
JP5876304B2 (ja) * 2012-01-25 2016-03-02 株式会社東海理化電機製作所 静電容量式タッチ入力装置
US9098153B2 (en) * 2012-02-01 2015-08-04 Qualcomm Technologies, Inc. Touch panel excitation using a drive signal having time-varying characteristics
GB2499242A (en) 2012-02-10 2013-08-14 Alterix Ltd methods of operating excitation circuitry and/or measurement circuitry in a digitiser and a method of manufacturing a transducer for a digitiser
GB2503607B8 (en) * 2012-02-10 2014-07-16 Alterix Ltd Digitiser
KR101898979B1 (ko) * 2012-02-16 2018-09-17 삼성디스플레이 주식회사 터치 패널의 구동 방법, 터치 패널 및 디스플레이 장치
US8692801B2 (en) * 2012-03-28 2014-04-08 Texas Instruments Incorporated System and method for sparse touch sensing on capacitive touch screen
US9329723B2 (en) 2012-04-16 2016-05-03 Apple Inc. Reconstruction of original touch image from differential touch image
KR101335892B1 (ko) * 2012-04-23 2013-12-02 한국과학기술원 정전용량방식의 대형 멀티 터치스크린의 신호검출시스템
JP5886139B2 (ja) 2012-05-30 2016-03-16 シャープ株式会社 タッチセンサシステム
US9063608B2 (en) 2012-06-14 2015-06-23 Synaptics Incorporated Systems and methods for sensor devices having a non-commensurate number of transmitter electrodes
US9495065B2 (en) 2012-07-06 2016-11-15 Navico Holding As Cursor assist mode
US9361693B2 (en) 2012-07-06 2016-06-07 Navico Holding As Adjusting parameters of marine electronics data
CN103543855A (zh) * 2012-07-10 2014-01-29 程芹 一种触摸屏系统及触摸坐标定位方法
US9557845B2 (en) 2012-07-27 2017-01-31 Apple Inc. Input device for and method of communication with capacitive devices through frequency variation
US9652090B2 (en) 2012-07-27 2017-05-16 Apple Inc. Device for digital communication through capacitive coupling
US10712859B2 (en) * 2012-08-03 2020-07-14 Touchplus Information Corp. Touch-sensitive control device
US8773386B2 (en) * 2012-08-09 2014-07-08 Cypress Semiconductor Corporation Methods and apparatus to scan a targeted portion of an input device to detect a presence
WO2014031782A2 (en) * 2012-08-21 2014-02-27 Cirque Corporation Method for increasing a scanning rate on a capacitance sensitive touch sensor having an xy electrode grid
CN102981059B (zh) * 2012-08-29 2016-06-01 北京集创北方科技有限公司 一种电容触摸屏装置缺陷检测方法
JP5984259B2 (ja) * 2012-09-20 2016-09-06 株式会社ワコム 位置検出装置
US8816985B1 (en) 2012-09-20 2014-08-26 Cypress Semiconductor Corporation Methods and apparatus to detect a touch pattern
TWI483166B (zh) * 2012-10-08 2015-05-01 Innocom Tech Shenzhen Co Ltd 觸控顯示裝置及其驅動方法
US9841862B2 (en) 2012-10-16 2017-12-12 Atmel Corporation Stylus position system
US9958966B2 (en) 2012-10-16 2018-05-01 Atmel Corporation Active stylus communication and position system
US10013096B2 (en) * 2012-10-18 2018-07-03 Atmel Corporation Touch sensor with simultaneously driven drive electrodes
US9323365B2 (en) * 2012-10-29 2016-04-26 Google Inc. Masking an outer perimeter of a touch screen
CN103793115A (zh) * 2012-10-30 2014-05-14 瀚宇彩晶股份有限公司 触控面板的多点触控的位置判断方法及其装置
US20140132523A1 (en) * 2012-11-13 2014-05-15 David Brent GUARD Touch Sensing Based On Signal Reflections
CN103838019B (zh) * 2012-11-22 2016-10-12 群康科技(深圳)有限公司 触控显示装置及其驱动方法
CN103268162B (zh) * 2012-11-27 2017-05-10 上海天马微电子有限公司 一种触摸信号扫描装置及扫描方法
CN103902084B (zh) * 2012-12-27 2017-06-13 上海天马微电子有限公司 一种触摸屏
KR102066614B1 (ko) * 2013-02-28 2020-01-15 엘지이노텍 주식회사 조명 장치
KR102056901B1 (ko) * 2013-03-05 2019-12-17 삼성전자주식회사 터치 검출 장치 및 방법, 이를 적용한 터치 스크린 장치
US8890841B2 (en) 2013-03-13 2014-11-18 3M Innovative Properties Company Capacitive-based touch apparatus and method therefor, with reduced interference
US10048775B2 (en) 2013-03-14 2018-08-14 Apple Inc. Stylus detection and demodulation
MX349679B (es) 2013-03-15 2017-08-09 Tactual Labs Co Sensor de multi-toques rápidos con técnicas de identificación de usuario.
US9830015B2 (en) * 2013-03-15 2017-11-28 Tactual Labs Co. Orthogonal frequency scan scheme in touch system
EP2972701A4 (en) * 2013-03-15 2017-01-25 Tactual Labs Co. Fast multi-touch sensor with user identification techniques
SG11201506843PA (en) * 2013-03-15 2015-09-29 Tactual Labs Co Fast multi-touch noise reduction
JP5980157B2 (ja) * 2013-03-29 2016-08-31 株式会社ジャパンディスプレイ タッチ検出機能付き表示装置及び電子機器
CN103235673B (zh) * 2013-04-11 2016-05-11 深圳市天微电子股份有限公司 触摸屏检测方法及触摸屏
KR102149984B1 (ko) * 2013-04-22 2020-09-01 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
KR101327451B1 (ko) * 2013-04-25 2013-11-11 주식회사 아나패스 노이즈 영향 감소 방법 및 이를 이용한 터치 검출 장치
CN103324338B (zh) * 2013-05-30 2017-02-22 业成光电（深圳）有限公司 触控装置及其驱动方法
CN103279246B (zh) * 2013-06-06 2016-05-25 敦泰科技有限公司 电容式触摸板
CN103294320A (zh) * 2013-06-06 2013-09-11 敦泰科技有限公司 一种电容式触摸屏及其制作方法
CN103294319A (zh) * 2013-06-06 2013-09-11 敦泰科技有限公司 电容式触摸屏
TWI483159B (zh) * 2013-06-11 2015-05-01 Quanta Comp Inc 觸控裝置及使用其之觸控方法
CN103336636B (zh) * 2013-06-14 2016-12-28 业成光电（深圳）有限公司 触控面板与触控显示装置
US20140375591A1 (en) * 2013-06-19 2014-12-25 Himax Technologies Limited Touch screen and apparatus of driving the same
US8988390B1 (en) 2013-07-03 2015-03-24 Apple Inc. Frequency agile touch processing
CN104281297A (zh) * 2013-07-04 2015-01-14 奇景光电股份有限公司 触控屏幕及其驱动装置
CN105518599B (zh) 2013-07-08 2019-02-19 电子触控产品解决方案 多用户多触摸的感应电容式触摸传感器
US10845901B2 (en) 2013-07-31 2020-11-24 Apple Inc. Touch controller architecture
KR20150017123A (ko) 2013-08-06 2015-02-16 삼성디스플레이 주식회사 터치 센서 및 그의 구동방법
KR101497405B1 (ko) * 2013-08-07 2015-03-04 주식회사 하이딥 터치패널 입력장치 및 그의 입력검출방법
WO2015023410A1 (en) * 2013-08-16 2015-02-19 Apple Inc. Touch panel electrode structure for user grounding correction
US9886141B2 (en) 2013-08-16 2018-02-06 Apple Inc. Mutual and self capacitance touch measurements in touch panel
US8872526B1 (en) 2013-09-10 2014-10-28 Cypress Semiconductor Corporation Interleaving sense elements of a capacitive-sense array
US9495050B1 (en) 2013-09-10 2016-11-15 Monterey Research, Llc Sensor pattern with signal-spreading electrodes
DE102013218619A1 (de) * 2013-09-17 2015-03-19 Continental Automotive Gmbh Kapazitive Eingabeschnittstelle und Verfahren zum Steuern einer kapazitiven Eingabeschnittstelle
US20150091842A1 (en) * 2013-09-30 2015-04-02 Synaptics Incorporated Matrix sensor for image touch sensing
US9430097B2 (en) 2013-09-30 2016-08-30 Synaptics Incorporated Non-orthogonal coding techniques for optical sensing
US10042489B2 (en) 2013-09-30 2018-08-07 Synaptics Incorporated Matrix sensor for image touch sensing
KR102178797B1 (ko) 2013-10-04 2020-11-16 삼성디스플레이 주식회사 터치 센서를 포함하는 표시 장치
KR102114964B1 (ko) 2013-10-04 2020-05-26 삼성디스플레이 주식회사 터치 스크린 패널
KR102140791B1 (ko) 2013-10-11 2020-08-03 삼성전자주식회사 터치 컨트롤러, 터치 컨트롤러를 포함하는 디스플레이 장치 및 전자 장치, 및 터치 센싱 방법
KR102140197B1 (ko) * 2013-10-23 2020-08-03 삼성디스플레이 주식회사 정전용량 방식의 터치 센서
US11409379B2 (en) 2013-11-08 2022-08-09 Egalax_Empia Technology Inc. Stylus and operating method thereof for transmitting electrical signals carrying pressure information
US10890987B2 (en) 2013-11-08 2021-01-12 Egalax_Empia Technology Inc. Stylus and operating method thereof for transmitting electrical signals carrying pressure information
US11237648B2 (en) 2013-11-08 2022-02-01 Egalax_Empia Technology Inc. Touch sensitive processing method and apparatus and touch sensitive system for reducing detection time period of tethered stylus
US10895921B2 (en) 2013-11-08 2021-01-19 Egalax_Empia Technology Inc. Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information
US11181994B2 (en) 2013-11-08 2021-11-23 Egalax_Empia Technology Inc. Transmitter and controlling method thereof
CN108279806B (zh) 2013-11-08 2020-09-04 禾瑞亚科技股份有限公司 判断发信器受力的方法、触控处理装置与触控系统
US11392221B2 (en) 2013-11-08 2022-07-19 Egalax_Empia Technology Inc. Touch sensitive processing apparatus, system and operating method thereof for receiving electrical signals carrying pressure information
US10120506B2 (en) 2013-11-12 2018-11-06 Microsoft Technology Licensing, Llc Multi-touch capacitive sensing surface
TWI505165B (zh) * 2013-11-15 2015-10-21 Ili Technology Corp 觸控感測裝置及其運作方法
US9304575B2 (en) 2013-11-26 2016-04-05 Apple Inc. Reducing touch sensor panel power consumption
CN103699326B (zh) * 2013-12-27 2017-02-15 深圳天珑无线科技有限公司 触控操作的处理方法、终端设备
TWI526903B (zh) * 2013-12-27 2016-03-21 Egalax Empia Technology Inc Touch device detection method
CN105874412B (zh) 2014-01-03 2019-01-29 3M创新有限公司 使用差分信号技术的电容触摸系统和方法
MX2016009582A (es) * 2014-01-22 2017-04-27 Tactual Labs Co Asignacion dinamica de canales posibles en un sensor de contacto.
TWI492138B (zh) * 2014-02-17 2015-07-11 Elan Microelectronics Corp 電容式觸控裝置的叢集式掃描方法
TWI518577B (zh) 2014-03-12 2016-01-21 義隆電子股份有限公司 電容式觸控裝置的叢集式掃描方法
TWI554931B (zh) * 2014-03-18 2016-10-21 Japan Display Inc A display device with a sensor
US9176633B2 (en) 2014-03-31 2015-11-03 Synaptics Incorporated Sensor device and method for estimating noise in a capacitive sensing device
TWI524248B (zh) 2014-04-03 2016-03-01 創為精密材料股份有限公司 互電容觸控偵測裝置、系統及其方法
US9675368B2 (en) 2014-05-07 2017-06-13 Stmicroelectronics Asia Pacific Pte Ltd. Touch panel scanning method, circuit and system
US10936120B2 (en) 2014-05-22 2021-03-02 Apple Inc. Panel bootstraping architectures for in-cell self-capacitance
US10289251B2 (en) 2014-06-27 2019-05-14 Apple Inc. Reducing floating ground effects in pixelated self-capacitance touch screens
KR101637174B1 (ko) * 2014-06-30 2016-07-21 엘지디스플레이 주식회사 터치스크린 일체형 표시장치
KR101715997B1 (ko) * 2014-07-08 2017-03-15 한양대학교 산학협력단 정전용량 터치패널용 구동 방법 및 장치
US10969897B2 (en) * 2014-07-08 2021-04-06 Miraenanotech Co., Ltd. Method and device for operating capacitive touch panel
US9280251B2 (en) 2014-07-11 2016-03-08 Apple Inc. Funneled touch sensor routing
KR102365159B1 (ko) * 2014-07-15 2022-02-18 삼성전자주식회사 커브된 터치 패널 및 이를 포함하는 표시 장치
EP2998842A4 (en) * 2014-07-25 2017-05-03 Newcom Techno Inc. Position detection unit
JP6212448B2 (ja) * 2014-08-04 2017-10-11 株式会社ジャパンディスプレイ タッチ検出装置、タッチ検出機能付き表示装置、及びタッチ検出方法
US9880655B2 (en) 2014-09-02 2018-01-30 Apple Inc. Method of disambiguating water from a finger touch on a touch sensor panel
JP6678654B2 (ja) * 2014-09-10 2020-04-08 ベクトン・ディキンソン・アンド・カンパニーＢｅｃｔｏｎ， Ｄｉｃｋｉｎｓｏｎ Ａｎｄ Ｃｏｍｐａｎｙ オンボディ医療デバイスのための作動システムおよび方法
TWI614661B (zh) * 2014-09-12 2018-02-11 義隆電子股份有限公司 觸控面板的掃描方法及觸控裝置
EP3175330B1 (en) 2014-09-22 2022-04-20 Apple Inc. Ungrounded user signal compensation for pixelated self-capacitance touch sensor panel
EP4033343A1 (en) * 2014-09-30 2022-07-27 Apple Inc. Fabric sensing device
CN106796467A (zh) * 2014-10-07 2017-05-31 美国亚德诺半导体公司 聚集的电容传感
TWI525517B (zh) * 2014-10-23 2016-03-11 瑞鼎科技股份有限公司 電容式觸控面板之觸控感測電路
CN107077262B (zh) 2014-10-27 2020-11-10 苹果公司 像素化自电容水排斥
US9591175B2 (en) 2014-11-02 2017-03-07 Clover Network, Inc. Connecting a printer and a mobile device using identification information printed by the printer
KR102377529B1 (ko) 2014-11-04 2022-03-24 삼성디스플레이 주식회사 터치 센서 및 이를 포함하는 표시 장치
AU2015101688B4 (en) 2014-12-04 2016-02-11 Apple Inc. Coarse scan and targeted active mode scan for touch
US10061450B2 (en) * 2014-12-04 2018-08-28 Apple Inc. Coarse scan and targeted active mode scan for touch
US9851854B2 (en) 2014-12-16 2017-12-26 Microsoft Technology Licensing, Llc Touch display device
CN104461151B (zh) * 2014-12-22 2018-01-26 西安中颖电子有限公司 低压高信噪比的触摸屏检测方法
CN104536627B (zh) 2014-12-29 2017-11-14 厦门天马微电子有限公司 一种触控驱动检测电路、显示面板和显示装置
US10394392B2 (en) * 2015-01-14 2019-08-27 Atmel Corporation Object detection and scan
CN111610890A (zh) 2015-02-02 2020-09-01 苹果公司 柔性自电容和互电容触摸感测系统架构
US10037100B2 (en) * 2015-03-02 2018-07-31 Apple Inc. SNR-aware active mode touch scans with electrode reallocation
US10488992B2 (en) 2015-03-10 2019-11-26 Apple Inc. Multi-chip touch architecture for scalability
CN104699339A (zh) * 2015-03-18 2015-06-10 深圳市华星光电技术有限公司 触控信号扫描方法
US9727187B2 (en) 2015-04-16 2017-08-08 Sharp Kabushiki Kaisha Capacitive touch panel with balanced parallel driving
US20160313823A1 (en) * 2015-04-22 2016-10-27 Stmicroelectronics Asia Pacific Pte Ltd Capacitive touch screen with time overlapped concurrent scanning operation using coded drive signals
WO2016191392A1 (en) * 2015-05-22 2016-12-01 Tactual Labs Co. Transmitting and receiving system and method for bidirectional orthogonal signaling sensors
US9513756B1 (en) * 2015-08-28 2016-12-06 Clover Network, Inc. Providing near field communication through a touch screen
TWI611329B (zh) * 2015-08-31 2018-01-11 敦泰電子有限公司 電子設備及其單層互容式觸控螢幕
US10664087B2 (en) * 2015-09-08 2020-05-26 Lg Display Co., Ltd. In-cell touch type display device
US10691248B2 (en) 2015-09-08 2020-06-23 Lg Display Co., Ltd. Driving circuit, touch display device, and method for driving the touch display device
CN105138181A (zh) * 2015-09-23 2015-12-09 深圳信炜科技有限公司 电容式传感器、电容式传感装置和电子设备
KR102342357B1 (ko) * 2015-09-30 2021-12-24 엘지디스플레이 주식회사 표시장치와 그 구동방법
US10365773B2 (en) 2015-09-30 2019-07-30 Apple Inc. Flexible scan plan using coarse mutual capacitance and fully-guarded measurements
US10534481B2 (en) 2015-09-30 2020-01-14 Apple Inc. High aspect ratio capacitive sensor panel
US20170102798A1 (en) * 2015-10-08 2017-04-13 Microsoft Technology Licensing, Llc Touch sense intervals in multiple drive states
US10067587B2 (en) 2015-12-29 2018-09-04 Synaptics Incorporated Routing conductors in an integrated display device and sensing device
TWI638298B (zh) * 2015-12-31 2018-10-11 禾瑞亞科技股份有限公司 觸控方法、觸控處理系統與電子裝置
CN106959792B (zh) * 2016-01-12 2023-10-31 宸鸿科技(厦门)有限公司 具指纹辨识功能的触控检测装置
JP6588347B2 (ja) * 2016-01-22 2019-10-09 株式会社ジャパンディスプレイ 入力装置および表示装置
US10019122B2 (en) 2016-03-31 2018-07-10 Synaptics Incorporated Capacitive sensing using non-integer excitation
KR102462462B1 (ko) * 2016-04-06 2022-11-03 엘지디스플레이 주식회사 구동 회로, 터치 디스플레이 장치 및 그 구동 방법
US10067590B2 (en) 2016-04-29 2018-09-04 Synaptics Incorporated Differential force and touch sensing
US10474277B2 (en) 2016-05-31 2019-11-12 Apple Inc. Position-based stylus communication
AU2017208277B2 (en) 2016-09-06 2018-12-20 Apple Inc. Back of cover touch sensors
TWI604356B (zh) * 2016-09-09 2017-11-01 意象無限股份有限公司 觸控系統及其觸控偵測方法
CN106855781A (zh) * 2016-09-27 2017-06-16 努比亚技术有限公司 触摸信号扫描方法、装置及终端
US20180088706A1 (en) * 2016-09-29 2018-03-29 Synaptics Incorporated Mutual capacitive sensing on a matrix sensor
WO2018073690A1 (en) 2016-10-21 2018-04-26 Semiconductor Energy Laboratory Co., Ltd. Touch sensor, display device, display module, and electronic device
US10444873B2 (en) 2016-11-04 2019-10-15 Microsoft Technology Licensing, Llc Active stylus synchronization
CN106527811B (zh) * 2016-11-21 2019-04-09 厦门天马微电子有限公司 触控显示面板的驱动方法、触控显示面板及触控显示装置
US10540044B2 (en) * 2016-12-14 2020-01-21 Cypress Semiconductor Corporation Capacitive sensing with multi-pattern scan
CN106527821B (zh) * 2016-12-29 2019-06-14 厦门天马微电子有限公司 触控显示面板的触控驱动方法、触控显示面板及显示装置
US10642418B2 (en) 2017-04-20 2020-05-05 Apple Inc. Finger tracking in wet environment
CN108874197A (zh) * 2017-05-16 2018-11-23 奇景光电股份有限公司 触控面板以及触控面板的感测方法
US10914773B2 (en) * 2017-09-29 2021-02-09 Intel Corporation Resolution adjustment for capacitive touch sensor
US10474293B2 (en) * 2017-10-06 2019-11-12 Novatek Microelectronics Corp. Signal processing method and touch sensing system using the same
US20190286272A1 (en) * 2018-03-14 2019-09-19 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Touch control display panel, touch control method and touch control display device
TWI683240B (zh) * 2018-05-23 2020-01-21 宏碁股份有限公司 觸控裝置
CN110596761A (zh) * 2018-06-12 2019-12-20 义隆电子股份有限公司 电容式触控面板的液体检测方法及控制器
US10877608B2 (en) * 2018-06-21 2020-12-29 Microchip Technology Incorporated Parallel acquisition and measurement of capacitive sensor channels, and related systems, methods, and devices
US11586326B2 (en) * 2018-06-21 2023-02-21 Microchip Technology Incorporated Spread acquisition and measurement of capacitance sensors and related systems, methods and devices
CN109164943B (zh) * 2018-07-17 2020-09-01 深圳市华星光电技术有限公司 触控驱动方法
KR102552745B1 (ko) * 2018-07-19 2023-07-06 주식회사 엘엑스세미콘 터치구동장치 및 디스플레이장치
CN109144335B (zh) * 2018-08-29 2019-09-20 基合半导体（宁波）有限公司 一种触摸屏、检测方法以及移动终端
CN109445629B (zh) * 2018-10-18 2022-02-01 京东方科技集团股份有限公司 触摸检测方法及装置、触控模组和显示装置
US10936119B2 (en) * 2019-03-05 2021-03-02 Stmicroelectronics Asia Pacific Pte Ltd Self capacitance sensing based on tangent of phase shift of drive signal
JP7232098B2 (ja) * 2019-03-27 2023-03-02 株式会社ジャパンディスプレイ 検出装置
GB2584669B (en) * 2019-06-10 2022-03-30 Touchnetix Ltd Touch-sensitive apparatus and method
US10908641B1 (en) * 2019-10-09 2021-02-02 Sigmasense, Llc. Display generated data transmission from user device to touchscreen via user
JP7306244B2 (ja) * 2019-12-02 2023-07-11 株式会社デンソーウェーブ 空調コントローラ用タッチパネル装置
KR20210100837A (ko) 2020-02-07 2021-08-18 삼성전자주식회사 터치 센서 ic를 포함하는 전자 장치 및 그 동작 방법
EP4104042A1 (en) 2020-02-10 2022-12-21 FlatFrog Laboratories AB Improved touch-sensing apparatus
US11662867B1 (en) 2020-05-30 2023-05-30 Apple Inc. Hover detection on a touch sensor panel
US11768556B2 (en) * 2020-06-23 2023-09-26 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Touch display device and touch driving method of same
US11435859B2 (en) 2020-11-02 2022-09-06 Microsoft Technology Licensing, Llc Driving signals for capacitive touch-sensitive surface
CN113916420A (zh) * 2021-11-08 2022-01-11 浙江科技学院 一种阵列式触觉传感器的数据采集和分析方法
US11809677B2 (en) * 2021-12-28 2023-11-07 Peer Inc System and method for enabling control of cursor movement on an associated large screen using dynamic grid density of an associated mobile device
TWI830260B (zh) * 2022-06-20 2024-01-21 致伸科技股份有限公司 可切換電壓源之輸入系統及其輸入裝置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732369A (en) * 1971-04-05 1973-05-08 Welland Investment Trust Coordinate digitizer system
US3818133A (en) * 1971-04-05 1974-06-18 W Cotter Coordinate digitizer incremental system
GB1440130A (en) * 1972-11-20 1976-06-23 Ibm Position indicating system
US5861583A (en) * 1992-06-08 1999-01-19 Synaptics, Incorporated Object position detector
US5920309A (en) * 1996-01-04 1999-07-06 Logitech, Inc. Touch sensing method and apparatus

Family Cites Families (222)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3342935A (en) * 1964-01-20 1967-09-19 American Mach & Foundry Free stylus position locating system
US3767858A (en) 1971-11-18 1973-10-23 Talos Systems Apparatus for converting the position of a manually operated instrument into an electrical signal
US3886539A (en) * 1972-12-26 1975-05-27 Gen Motors Corp Domestic appliance control and display systems
US3875472A (en) * 1973-06-29 1975-04-01 Owens Illinois Inc Method of and system for light pen read-out and tablet writing of multicelled gaseous discharge display/memory device
US4080515A (en) 1975-06-17 1978-03-21 Gtco Corporation Successively electromagnetically scanned x-y grid conductors with a digitizing system utilizing a free cursor or stylus
US4071691A (en) * 1976-08-24 1978-01-31 Peptek, Inc. Human-machine interface apparatus
US4103252A (en) * 1976-11-26 1978-07-25 Xerox Corporation Capacitive touch-activated transducer system including a plurality of oscillators
US4293734A (en) 1979-02-23 1981-10-06 Peptek, Incorporated Touch panel system and method
US4444998A (en) * 1981-10-27 1984-04-24 Spectra-Symbol Corporation Touch controlled membrane for multi axis voltage selection
US4550221A (en) 1983-10-07 1985-10-29 Scott Mabusth Touch sensitive control device
US4560830A (en) * 1983-12-22 1985-12-24 Schlumberger Technology Corporation Digitizer tablet with coarse and fine position determination
US4733222A (en) * 1983-12-27 1988-03-22 Integrated Touch Arrays, Inc. Capacitance-variation-sensitive touch sensing array system
US4680429A (en) * 1986-01-15 1987-07-14 Tektronix, Inc. Touch panel
US4698460A (en) * 1986-08-26 1987-10-06 Tektronix, Inc. Touch panel system
US4698461A (en) 1986-08-26 1987-10-06 Tektronix, Inc. Touch panel with automatic frequency control
US4853498A (en) 1988-06-13 1989-08-01 Tektronix, Inc. Position measurement apparatus for capacitive touch panel system
US4916308A (en) 1988-10-17 1990-04-10 Tektronix, Inc. Integrated liquid crystal display and optical touch panel
JP2733300B2 (ja) 1989-04-28 1998-03-30 松下電器産業株式会社 キー入力装置
GB2232251A (en) * 1989-05-08 1990-12-05 Philips Electronic Associated Touch sensor array systems
US5305017A (en) * 1989-08-16 1994-04-19 Gerpheide George E Methods and apparatus for data input
US5105186A (en) 1990-05-25 1992-04-14 Hewlett-Packard Company Lcd touch screen
JP2534422B2 (ja) 1991-03-12 1996-09-18 シャープ株式会社 表示一体型タブレット装置
GB9108226D0 (en) 1991-04-17 1991-06-05 Philips Electronic Associated Optical touch input device
US5186829A (en) 1991-08-16 1993-02-16 Stanadyne Automotive Corp. Fuel filter key system
US5218174A (en) 1991-10-01 1993-06-08 Kurta Corporation Low power cordless magnetic field digitizer with differential grid sensing and synchronous position demodulation
US5483261A (en) 1992-02-14 1996-01-09 Itu Research, Inc. Graphical input controller and method with rear screen image detection
US5355149A (en) 1992-05-27 1994-10-11 Spacelabs Medical, Inc. Scanning system for touch screen keyboards
US5543590A (en) 1992-06-08 1996-08-06 Synaptics, Incorporated Object position detector with edge motion feature
EP0574213B1 (en) 1992-06-08 1999-03-24 Synaptics, Inc. Object position detector
US5488204A (en) 1992-06-08 1996-01-30 Synaptics, Incorporated Paintbrush stylus for capacitive touch sensor pad
US5880411A (en) 1992-06-08 1999-03-09 Synaptics, Incorporated Object position detector with edge motion feature and gesture recognition
US5565658A (en) 1992-07-13 1996-10-15 Cirque Corporation Capacitance-based proximity with interference rejection apparatus and methods
CA2107452C (en) 1992-10-30 1998-09-29 William Lewis Betts System for channel capacity modulation
US5606346A (en) * 1992-12-22 1997-02-25 Matsushita Electric Industrial Co., Ltd. Coordinate input device
US5621425A (en) * 1992-12-24 1997-04-15 Seiko Instruments Inc. Liquid crystal display device
US5844415A (en) 1994-02-03 1998-12-01 Massachusetts Institute Of Technology Method for three-dimensional positions, orientation and mass distribution
US20030062889A1 (en) * 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
JPH07311647A (ja) 1994-05-16 1995-11-28 Wacom Co Ltd 位置検出装置及びそのノイズ除去方法
JPH07334122A (ja) 1994-06-07 1995-12-22 Texas Instr Japan Ltd 駆動回路
TW274598B (en) 1994-11-15 1996-04-21 Alps Electric Co Ltd Coordinate input device for pen of finger tip
US5650597A (en) * 1995-01-20 1997-07-22 Dynapro Systems, Inc. Capacitive touch sensor
JPH08223065A (ja) 1995-02-13 1996-08-30 Toshiba Corp 周波数変換器
US5790107A (en) 1995-06-07 1998-08-04 Logitech, Inc. Touch sensing method and apparatus
TW319848B (zh) * 1995-06-12 1997-11-11 Samsung Electronics Co Ltd
US5996082A (en) 1995-10-16 1999-11-30 Packard Bell Nec System and method for delaying a wake-up signal
US5825352A (en) 1996-01-04 1998-10-20 Logitech, Inc. Multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad
US5686705A (en) * 1996-02-15 1997-11-11 Explore Technologies, Inc. Surface position location system and method
DE19619454A1 (de) 1996-05-14 1997-11-20 Gut Ges Fuer Umwelttechnik Mbh Reaktor zur Dotierung von Treibstoffen und Brennstoffen mit zinnhaltigen Materialien
JP3436637B2 (ja) * 1996-06-04 2003-08-11 アルプス電気株式会社 座標入力装置
US5835079A (en) 1996-06-13 1998-11-10 International Business Machines Corporation Virtual pointing device for touchscreens
TW343313B (en) 1996-07-12 1998-10-21 Synaptics Inc Object position detector with noise suppression feature
TW341684B (en) * 1996-07-15 1998-10-01 Synaptics Inc Object position detector
KR19980010726U (ko) 1996-08-12 1998-05-15 오상수 자동차의 브레이크 부스터
CA2257301C (en) 1996-08-12 2002-12-24 Elo Touchsystems, Inc. Acoustic condition sensor employing a plurality of mutually non-orthogonal waves
US5930309A (en) 1997-02-27 1999-07-27 Thomson Consumer Electronics, Inc. Receiver signal processing system for cap signals
TW408277B (en) 1996-11-15 2000-10-11 Alps Electric Co Ltd Small current detector circuit and locator device using the same
JPH10221643A (ja) * 1997-01-31 1998-08-21 Canon Inc 立体画像表示装置
US6222528B1 (en) * 1997-03-07 2001-04-24 Cirque Corporation Method and apparatus for data input
US6229856B1 (en) 1997-04-14 2001-05-08 Masimo Corporation Method and apparatus for demodulating signals in a pulse oximetry system
TW509849B (en) * 1997-06-16 2002-11-11 Matsushita Electric Ind Co Ltd The image processing device and the image processing method
US6879341B1 (en) 1997-07-15 2005-04-12 Silverbrook Research Pty Ltd Digital camera system containing a VLIW vector processor
US6327011B2 (en) 1997-10-20 2001-12-04 Lg Electronics, Inc. Liquid crystal display device having thin glass substrate on which protective layer formed and method of making the same
US5945980A (en) 1997-11-14 1999-08-31 Logitech, Inc. Touchpad with active plane for pen detection
US6310610B1 (en) 1997-12-04 2001-10-30 Nortel Networks Limited Intelligent touch display
US7800592B2 (en) * 2005-03-04 2010-09-21 Apple Inc. Hand held electronic device with multiple touch sensing devices
US8479122B2 (en) 2004-07-30 2013-07-02 Apple Inc. Gestures for touch sensitive input devices
US7760187B2 (en) * 2004-07-30 2010-07-20 Apple Inc. Visual expander
US7663607B2 (en) * 2004-05-06 2010-02-16 Apple Inc. Multipoint touchscreen
EP1717684A3 (en) 1998-01-26 2008-01-23 Fingerworks, Inc. Method and apparatus for integrating manual input
US6188391B1 (en) 1998-07-09 2001-02-13 Synaptics, Inc. Two-layer capacitive touchpad and method of making same
US6204897B1 (en) 1998-08-18 2001-03-20 International Business Machines Corporation Integrated resistor for measuring touch position in a liquid crystal display device
US6057903A (en) 1998-08-18 2000-05-02 International Business Machines Corporation Liquid crystal display device employing a guard plane between a layer for measuring touch position and common electrode layer
US6246729B1 (en) 1998-09-08 2001-06-12 Northrop Grumman Corporation Method and apparatus for decoding a phase encoded data signal
KR100401197B1 (ko) 1998-11-20 2003-11-15 삼성전자주식회사 문자인식 처리 속도가 향상된 문자인식 장치 및 그 방법
JP4542637B2 (ja) 1998-11-25 2010-09-15 セイコーエプソン株式会社 携帯情報機器及び情報記憶媒体
MXPA01005267A (es) 1998-11-27 2002-04-24 Synaptics Uk Ltd Sensor de posicion.
WO2000044018A1 (en) * 1999-01-26 2000-07-27 Harald Philipp Capacitive sensor and array
US6483498B1 (en) 1999-03-17 2002-11-19 International Business Machines Corporation Liquid crystal display with integrated resistive touch sensor
US6730863B1 (en) * 1999-06-22 2004-05-04 Cirque Corporation Touchpad having increased noise rejection, decreased moisture sensitivity, and improved tracking
JP2001075074A (ja) 1999-08-18 2001-03-23 Internatl Business Mach Corp <Ibm> タッチセンサ一体型液晶表示素子
US6492979B1 (en) 1999-09-07 2002-12-10 Elo Touchsystems, Inc. Dual sensor touchscreen utilizing projective-capacitive and force touch sensors
CA2393164C (en) * 1999-12-02 2008-04-01 Elo Touchsystems, Inc. Apparatus and method to improve resolution of infrared touch systems
US6816750B1 (en) 2000-06-09 2004-11-09 Cirrus Logic, Inc. System-on-a-chip
US6621484B1 (en) * 2000-06-27 2003-09-16 Microsoft Corporation Keyboard key discrimination based on time division multiplexing
US7302280B2 (en) 2000-07-17 2007-11-27 Microsoft Corporation Mobile phone operation based upon context sensing
US6559658B1 (en) 2000-09-27 2003-05-06 Rockwell Automation Technologies, Inc. Noise resistant electronic presence sensor
ATE307362T1 (de) 2000-12-05 2005-11-15 Validity Sensors Inc System und methode zur kapazitiven aufnahme von fingerabdrücken durch überstreichen
WO2002061668A1 (en) 2000-12-05 2002-08-08 Arete Associates, A California Corporation Linear contact sensor apparatus and method for use in imaging features of an object
US20020084992A1 (en) 2000-12-29 2002-07-04 Agnew Stephen S. Combined touch panel and display light
JP2002216585A (ja) 2001-01-18 2002-08-02 Minebea Co Ltd 表示装置用タッチパネル
JP2002232391A (ja) 2001-01-30 2002-08-16 Matsushita Electric Ind Co Ltd 直交符号発生回路
US6658245B2 (en) 2001-03-28 2003-12-02 Motorola, Inc. Radio receiver having a dynamic bandwidth filter and method therefor
US6937278B2 (en) 2001-04-02 2005-08-30 Micron Technology, Inc. Row driver circuit for a sensor including a shared row-reset bus and a charge pump boosting circuit
US6424094B1 (en) 2001-05-15 2002-07-23 Eastman Kodak Company Organic electroluminescent display with integrated resistive touch screen
JP3800984B2 (ja) 2001-05-21 2006-07-26 ソニー株式会社 ユーザ入力装置
US6583676B2 (en) 2001-06-20 2003-06-24 Apple Computer, Inc. Proximity/touch detector and calibration circuit
US20030067447A1 (en) * 2001-07-09 2003-04-10 Geaghan Bernard O. Touch screen with selective touch sources
US20030025676A1 (en) 2001-08-02 2003-02-06 Koninklijke Philips Electronics N.V. Sensor-based menu for a touch screen panel
JP3987729B2 (ja) 2001-09-11 2007-10-10 シャープ株式会社 入出力一体型表示装置
JP2003173237A (ja) 2001-09-28 2003-06-20 Ricoh Co Ltd 情報入出力システム、プログラム及び記憶媒体
US7254775B2 (en) * 2001-10-03 2007-08-07 3M Innovative Properties Company Touch panel system and method for distinguishing multiple touch inputs
WO2005081438A1 (en) 2001-11-19 2005-09-01 Tensorcomm, Incorporated Interference cancellation in a signal
JP3687597B2 (ja) 2001-11-30 2005-08-24 ソニー株式会社 表示装置および携帯端末装置
US6690387B2 (en) 2001-12-28 2004-02-10 Koninklijke Philips Electronics N.V. Touch-screen image scrolling system and method
US20030132922A1 (en) 2002-01-17 2003-07-17 Harald Philipp Touch screen detection apparatus
JP2004005415A (ja) * 2002-04-19 2004-01-08 Sharp Corp 入力装置および入出力一体型表示装置
US11275405B2 (en) 2005-03-04 2022-03-15 Apple Inc. Multi-functional hand-held device
US7129714B2 (en) 2002-07-02 2006-10-31 Baxter Larry K Capacitive measurement system
GB0215309D0 (en) 2002-07-03 2002-08-14 Cambridge Display Tech Ltd Combined information display and information input device
US6924793B2 (en) 2002-07-16 2005-08-02 Hewlett-Packard Development Company, L.P. Multi-styli input device and method of implementation
TWI245252B (en) 2002-07-18 2005-12-11 Gigno Technology Co Ltd LCD and the touch-control method thereof
US6998545B2 (en) * 2002-07-19 2006-02-14 E.G.O. North America, Inc. Touch and proximity sensor control systems and methods with improved signal and noise differentiation
US7248625B2 (en) 2002-09-05 2007-07-24 Silicon Storage Technology, Inc. Compensation of I-Q imbalance in digital transceivers
KR100480823B1 (ko) * 2002-11-14 2005-04-07 엘지.필립스 엘시디 주식회사 표시장치용 터치 패널
US20040109097A1 (en) 2002-12-10 2004-06-10 Toppoly Optoelectronics Corp. Plane display device with touch panel
US7042444B2 (en) 2003-01-17 2006-05-09 Eastman Kodak Company OLED display and touch screen
US7362313B2 (en) * 2003-01-17 2008-04-22 3M Innovative Properties Company Touch simulation system and method
US20040141096A1 (en) 2003-01-22 2004-07-22 Toppoly Optoelectronics Corp. Flat display device with touch panel
US7372455B2 (en) 2003-02-10 2008-05-13 N-Trig Ltd. Touch detection for a digitizer
GB2398916A (en) 2003-02-28 2004-09-01 Sharp Kk Display and sensor apparatus
US20040183833A1 (en) 2003-03-19 2004-09-23 Chua Yong Tong Keyboard error reduction method and apparatus
US7236161B2 (en) 2003-03-21 2007-06-26 3M Innovative Properties Company Remote touch simulation systems and methods
US7755616B2 (en) 2003-03-28 2010-07-13 Lg Display Co., Ltd. Liquid crystal display device having electromagnetic type touch panel
US7133032B2 (en) 2003-04-24 2006-11-07 Eastman Kodak Company OLED display and touch screen
GB0310409D0 (en) 2003-05-07 2003-06-11 Koninkl Philips Electronics Nv Object sensing
US7129935B2 (en) * 2003-06-02 2006-10-31 Synaptics Incorporated Sensor patterns for a capacitive sensing apparatus
CN1239992C (zh) 2003-06-16 2006-02-01 成都吉锐触摸电脑有限公司 双频响应型的表面声波触摸系统
TWI258029B (en) 2003-09-09 2006-07-11 Tpo Displays Corp Touching liquid crystal display equipment
US20050052427A1 (en) 2003-09-10 2005-03-10 Wu Michael Chi Hung Hand gesture interaction with touch surface
KR100970958B1 (ko) 2003-11-04 2010-07-20 삼성전자주식회사 터치 스크린 기능을 갖는 액정 표시 장치 및 그의 제조 방법
US7277087B2 (en) 2003-12-31 2007-10-02 3M Innovative Properties Company Touch sensing with touch down and lift off sensitivity
US7411584B2 (en) 2003-12-31 2008-08-12 3M Innovative Properties Company Touch sensitive device employing bending wave vibration sensing and excitation transducers
US20050151727A1 (en) 2004-01-08 2005-07-14 Intel Corporation Wireless enabled touch pad pointing device with integrated remote control function
US6856259B1 (en) * 2004-02-06 2005-02-15 Elo Touchsystems, Inc. Touch sensor system to detect multiple touch events
CN1957471A (zh) 2004-04-06 2007-05-02 彩光公司 在平板显示器中与传感器阵列集成的彩色滤波器
TWI247184B (en) 2004-04-16 2006-01-11 Toppoly Optoelectronics Corp Method for manufacturing LCD device with integrated touch panel
US7230608B2 (en) 2004-04-23 2007-06-12 Eastman Kodak Company OLED display and touch screen
TWI278690B (en) 2004-06-25 2007-04-11 Hannstar Display Corp Input-sensor-integrated liquid crystal display panel
WO2006002661A1 (en) * 2004-06-30 2006-01-12 Freescale Semiconductor, Inc. Keypad signal input apparatus
US7649524B2 (en) 2004-07-15 2010-01-19 N-Trig Ltd. Tracking window for a digitizer system
KR101133753B1 (ko) * 2004-07-26 2012-04-09 삼성전자주식회사 감지 소자를 내장한 액정 표시 장치
US8381135B2 (en) * 2004-07-30 2013-02-19 Apple Inc. Proximity detector in handheld device
WO2006030745A1 (ja) 2004-09-17 2006-03-23 Sharp Kabushiki Kaisha 表示装置および視野角制御装置、電子機器
KR101061849B1 (ko) * 2004-09-21 2011-09-02 삼성전자주식회사 정보 인식 장치 및 정보 인식 표시 장치
GB2419950A (en) 2004-11-09 2006-05-10 Sharp Kk Capacitance measuring apparatus for LCD touch screen
TWM267499U (en) 2004-12-01 2005-06-11 Tatung Co Incline structure using for a monitor
US7031886B1 (en) 2004-12-14 2006-04-18 Synaptics Incorporated Methods and systems for detecting noise in a position sensor using minor shifts in sensing frequency
CN101080911B (zh) 2004-12-16 2011-12-14 Nxp股份有限公司 对高频发射机中模拟i/q调制器幅度和相位失衡以及dc偏移的校准方法及装置
WO2006068782A2 (en) 2004-12-22 2006-06-29 3M Innovative Properties Company Touch sensors incorporating capacitively coupled electrodes
US7649525B2 (en) 2005-01-04 2010-01-19 Tpo Displays Corp. Display systems with multifunctional digitizer module board
US7924269B2 (en) 2005-01-04 2011-04-12 Tpo Displays Corp. Display devices and methods forming the same
GB2423583B (en) 2005-02-25 2009-03-18 Promethean Technologies Group Manufacture of interactive surface
JP4346572B2 (ja) 2005-03-23 2009-10-21 富士通株式会社 タッチパネル装置におけるノイズ除去のための制御方法および装置並びにタッチパネル装置
TWI311279B (en) 2005-04-28 2009-06-21 Novatek Microelectronics Corp Touch screen liquid crystal display device and system driving method
US20060244733A1 (en) 2005-04-28 2006-11-02 Geaghan Bernard O Touch sensitive device and method using pre-touch information
US9019209B2 (en) 2005-06-08 2015-04-28 3M Innovative Properties Company Touch location determination involving multiple touch location processes
US20060284856A1 (en) 2005-06-10 2006-12-21 Soss David A Sensor signal conditioning in a force-based touch device
US7852324B2 (en) 2005-07-21 2010-12-14 Tpo Displays Corp. Process of integrating a digitizer input device in a display
US7932898B2 (en) * 2005-09-20 2011-04-26 Atmel Corporation Touch sensitive screen
US7552861B2 (en) 2005-10-04 2009-06-30 Tpo Displays Corp. Display system
US7868874B2 (en) 2005-11-15 2011-01-11 Synaptics Incorporated Methods and systems for detecting a position-based attribute of an object using digital codes
US7573459B2 (en) 2006-01-27 2009-08-11 Hannstar Display Corp. Pixel structure for LCD with embedded touch screen
US8144115B2 (en) 2006-03-17 2012-03-27 Konicek Jeffrey C Flat panel display screen operable for touch position determination system and methods
US8144125B2 (en) * 2006-03-30 2012-03-27 Cypress Semiconductor Corporation Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
KR20070113018A (ko) 2006-05-24 2007-11-28 엘지전자 주식회사 터치스크린 장치 및 그 실행방법
US8279180B2 (en) 2006-05-02 2012-10-02 Apple Inc. Multipoint touch surface controller
KR101254695B1 (ko) 2006-05-10 2013-04-23 삼성디스플레이 주식회사 터치 스크린 내장형 액정표시패널 및 이를 포함한액정표시장치
WO2007135663A1 (en) 2006-05-19 2007-11-29 N-Trig Ltd. Variable capacitor array
TWI343200B (en) 2006-05-26 2011-06-01 Lg Electronics Inc Method and apparatus for signal generation using phase-shift based pre-coding
US8552989B2 (en) 2006-06-09 2013-10-08 Apple Inc. Integrated display and touch screen
JP4764272B2 (ja) 2006-06-30 2011-08-31 川崎マイクロエレクトロニクス株式会社 単純マトリクス液晶の駆動方法、液晶ドライバおよび液晶表示装置
US9360967B2 (en) 2006-07-06 2016-06-07 Apple Inc. Mutual capacitance touch sensing device
JP5324440B2 (ja) 2006-07-12 2013-10-23 エヌ−トリグ リミテッド デジタイザのためのホバリングおよびタッチ検出
US20080079697A1 (en) * 2006-08-01 2008-04-03 Dong-Ju Lee Display device and manufacturing method thereof
KR101328387B1 (ko) 2006-08-25 2013-11-13 삼성디스플레이 주식회사 터치 위치 검출방법
KR101274034B1 (ko) 2006-08-25 2013-06-12 삼성디스플레이 주식회사 터치스크린 표시장치 및 이의 제조방법
US20080055268A1 (en) 2006-09-01 2008-03-06 Dan-Sik Yoo Touch screen panel and method for manufacturing the same
JP4567028B2 (ja) 2006-09-26 2010-10-20 エルジー ディスプレイ カンパニー リミテッド マルチタッチ感知機能を有する液晶表示装置とその駆動方法
US20080088594A1 (en) 2006-10-12 2008-04-17 Hua Liu Two-substrate layer touchpad capacitive sensing device
KR101297387B1 (ko) 2006-11-09 2013-08-19 삼성디스플레이 주식회사 터치 패널 일체형 액정 표시 장치
KR20080052836A (ko) 2006-12-08 2008-06-12 삼성전자주식회사 액정 표시 장치 및 그 제조 방법
US7948477B2 (en) 2006-12-15 2011-05-24 Apple Inc. PET-based touchpad
US20080278143A1 (en) * 2006-12-19 2008-11-13 Lecroy Corporation Remote Display and Control for Test and Measurement Apparatus
US20080150901A1 (en) 2006-12-22 2008-06-26 Robert Lowles Integrated Liquid Crystal Display And Touchscreen For An Electronic Device
US8040330B2 (en) 2006-12-28 2011-10-18 3M Innovative Properties Company Untethered stylus empolying multiple reference frequency communication
US8970501B2 (en) 2007-01-03 2015-03-03 Apple Inc. Proximity and multi-touch sensor detection and demodulation
US7812827B2 (en) 2007-01-03 2010-10-12 Apple Inc. Simultaneous sensing arrangement
US8711129B2 (en) 2007-01-03 2014-04-29 Apple Inc. Minimizing mismatch during compensation
US8125456B2 (en) 2007-01-03 2012-02-28 Apple Inc. Multi-touch auto scanning
US8493330B2 (en) 2007-01-03 2013-07-23 Apple Inc. Individual channel phase delay scheme
US8232970B2 (en) 2007-01-03 2012-07-31 Apple Inc. Scan sequence generator
US8094128B2 (en) 2007-01-03 2012-01-10 Apple Inc. Channel scan logic
US7719367B2 (en) 2007-01-03 2010-05-18 Apple Inc. Automatic frequency calibration
US7986193B2 (en) 2007-01-03 2011-07-26 Apple Inc. Noise reduction within an electronic device using automatic frequency modulation
US7643011B2 (en) 2007-01-03 2010-01-05 Apple Inc. Noise detection in multi-touch sensors
US7692638B2 (en) 2007-01-03 2010-04-06 Apple Inc. Error compensation for multi-touch surfaces
US8068125B2 (en) 2007-01-05 2011-11-29 Apple Inc. Luminescence shock avoidance in display devices
US8026904B2 (en) 2007-01-03 2011-09-27 Apple Inc. Periodic sensor panel baseline adjustment
US8144126B2 (en) * 2007-05-07 2012-03-27 Cypress Semiconductor Corporation Reducing sleep current in a capacitance sensing system
US8493331B2 (en) 2007-06-13 2013-07-23 Apple Inc. Touch detection using multiple simultaneous frequencies
US7876311B2 (en) 2007-06-13 2011-01-25 Apple Inc. Detection of low noise frequencies for multiple frequency sensor panel stimulation
US20090009483A1 (en) 2007-06-13 2009-01-08 Apple Inc. Single-chip touch controller with integrated drive system
WO2009006557A1 (en) 2007-07-03 2009-01-08 Cypress Semiconductor Corporation Method for improving scan time and sensitivity in touch sensitive user interface device
US10969917B2 (en) 2008-01-30 2021-04-06 Apple Inc. Auto scanning for multiple frequency stimulation multi-touch sensor panels
US8576193B2 (en) 2008-04-25 2013-11-05 Apple Inc. Brick layout and stackup for a touch screen
US8731689B2 (en) 2008-05-06 2014-05-20 Abl Ip Holding, Llc Networked, wireless lighting control system with distributed intelligence
TW200947030A (en) * 2008-05-13 2009-11-16 Tpk Touch Solutions Inc Capacitive touch control device and method thereof
KR101322015B1 (ko) 2008-06-24 2013-10-25 엘지디스플레이 주식회사 액정표시장치
US8810542B2 (en) 2008-09-10 2014-08-19 Apple Inc. Correction of parasitic capacitance effect in touch sensor panels
US9606663B2 (en) 2008-09-10 2017-03-28 Apple Inc. Multiple stimulation phase determination
US8659556B2 (en) 2008-09-10 2014-02-25 Apple Inc. Advanced receive channel architecture
US9348451B2 (en) 2008-09-10 2016-05-24 Apple Inc. Channel scan architecture for multiple stimulus multi-touch sensor panels
US8592697B2 (en) 2008-09-10 2013-11-26 Apple Inc. Single-chip multi-stimulus sensor controller
US8237667B2 (en) 2008-09-10 2012-08-07 Apple Inc. Phase compensation for multi-stimulus controller
US8175549B2 (en) 2008-10-17 2012-05-08 Texas Instruments Incorporated Closed loop transmitter IQ calibration
US8314779B2 (en) 2009-02-23 2012-11-20 Solomon Systech Limited Method and apparatus for operating a touch panel
US8791907B2 (en) 2009-08-19 2014-07-29 U-Pixel Technologies Inc. Touch sensing apparatus and method using different modulated driving signals
US9036650B2 (en) 2009-09-11 2015-05-19 Apple Inc. Automatic low noise frequency selection
US9753586B2 (en) * 2009-10-08 2017-09-05 3M Innovative Properties Company Multi-touch touch device with multiple drive frequencies and maximum likelihood estimation
US9411928B2 (en) 2012-07-17 2016-08-09 Parade Technologies, Ltd. Discontinuous integration using half periods
US8988390B1 (en) 2013-07-03 2015-03-24 Apple Inc. Frequency agile touch processing
US10042396B1 (en) 2017-08-17 2018-08-07 Cisco Technology, Inc. Configurable module guides for modular electronic system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732369A (en) * 1971-04-05 1973-05-08 Welland Investment Trust Coordinate digitizer system
US3818133A (en) * 1971-04-05 1974-06-18 W Cotter Coordinate digitizer incremental system
GB1440130A (en) * 1972-11-20 1976-06-23 Ibm Position indicating system
US5861583A (en) * 1992-06-08 1999-01-19 Synaptics, Incorporated Object position detector
US5920309A (en) * 1996-01-04 1999-07-06 Logitech, Inc. Touch sensing method and apparatus

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