Mechanical deflection compensation for a capacitive touch input device

    公开(公告)号:US10001883B2

    公开(公告)日:2018-06-19

    申请号:US13013596

    申请日:2011-01-25

    摘要: A location of contact with a touch sensitive device is determined. Output signals associated with a plurality of electrodes such as formed on a single layer of the touch sensitive device are measured to identify a first electrode positioned at an approximate location of contact with the touch sensor. An output signal associated with a different electrode that is separated from the first electrode is measured to determine an undesired signal amount, such as due to deflection. An undesired single amount associated with the first electrode may be estimated based on the undesired signal amount measured at the other electrode. The signal amount measured at the first electrode is then compensated by the estimated undesired signal amount. The location of contact with the touch sensor is then determined based on the compensated signal amount.

    Method and a touch sensing device for implementing the method
    2.
    发明授权
    Method and a touch sensing device for implementing the method 有权
    方法和用于实现该方法的触摸感测装置

    公开(公告)号:US09176623B2

    公开(公告)日:2015-11-03

    申请号:US13164228

    申请日:2011-06-20

    申请人: Joel C. Kent

    发明人: Joel C. Kent

    IPC分类号: G06F15/00 G06F3/041 G06F3/043

    CPC分类号: G06F3/0418 G06F3/0433

    摘要: The present invention relates to a method for reducing noise in a signal sensing a bending wave propagating in an object comprising the steps of: receiving a sensed signal representative of a plurality of locations of the object, and fitting a function satisfying bending wave propagation properties to the sensed signals, thereby reducing noise contributions to the sensed signals not satisfying the bending wave propagation properties. By doing so, noise contributions not satisfying the wave propagation properties can be suppressed from the sensed signal, thereby improving the signal-to-noise ratio.

    摘要翻译: 本发明涉及一种用于降低感测在物体中传播的弯曲波的信号中的噪声的方法,包括以下步骤:接收表示物体的多个位置的感测信号,以及将满足弯曲波传播特性的功能拟合到 感测的信号,从而减少对不满足弯曲波传播特性的感测信号的噪声贡献。 通过这样做,可以从感测信号抑制不满足波传播特性的噪声贡献,从而提高信噪比。

    Acoustic touch sensor
    3.
    发明授权
    Acoustic touch sensor 有权
    声学触摸传感器

    公开(公告)号:US08325159B2

    公开(公告)日:2012-12-04

    申请号:US11106394

    申请日:2005-04-13

    IPC分类号: G09G5/00

    CPC分类号: G06F3/0436

    摘要: A touch sensor comprises a substrate capable of propagating acoustic waves and includes a first surface having a touch sensitive region. A first sidewall intersects the first surface along a first edge. The first edge is configured to propagate a first acoustic wave along the first edge. The first acoustic wave may be a one-dimensional edge wave. A wave converter converts the first acoustic wave to a second acoustic wave, and the first surface is configured to propagate the second acoustic wave across the touch sensitive region.

    摘要翻译: 触摸传感器包括能够传播声波的基板,并且包括具有触敏区域的第一表面。 第一侧壁沿着第一边缘与第一表面相交。 第一边缘被配置为沿着第一边缘传播第一声波。 第一声​​波可以是一维边缘波。 波变换器将第一声波转换为第二声波,并且第一表面被配置为传播第二声波穿过触敏区域。

    TOUCHSCREEN FOR DETECTING MULTIPLE TOUCHSCREENS
    4.
    发明申请
    TOUCHSCREEN FOR DETECTING MULTIPLE TOUCHSCREENS 有权
    用于检测多个触摸屏的触摸屏

    公开(公告)号:US20120280942A1

    公开(公告)日:2012-11-08

    申请号:US13550063

    申请日:2012-07-16

    IPC分类号: G06F3/041

    摘要: A touchscreen system comprises a touch area. At least one transmitter is positioned proximate to outer edges of the touch area for transmitting first beams in a first direction. At least one beam splitter is positioned proximate to the outer edges of the touch area for splitting the first beams into at least second and third beams that travel through the touch area in at least second and third directions, respectively. The at least one beam splitter comprises a plurality of deflecting elements. Receivers are positioned proximate to the outer edges of the touch area for receiving the at least second and third beams.

    摘要翻译: 触摸屏系统包括触摸区域。 至少一个发射器被定位成接近触摸区域的外边缘,用于沿第一方向传输第一光束。 至少一个分束器位于触摸区域的外边缘附近,用于将第一光束分成至少第二和第三光束,其分别在至少第二和第三方向上穿过触摸区域。 所述至少一个分束器包括多个偏转元件。 接收器位于触摸区域的外边缘附近,用于接收至少第二和第三光束。

    BACKGROUND CAPACITANCE COMPENSATION FOR A CAPACITIVE TOUCH INPUT DEVICE
    5.
    发明申请
    BACKGROUND CAPACITANCE COMPENSATION FOR A CAPACITIVE TOUCH INPUT DEVICE 有权
    电容触摸输入装置的背景电容补偿

    公开(公告)号:US20120162123A1

    公开(公告)日:2012-06-28

    申请号:US13013613

    申请日:2011-01-25

    IPC分类号: G06F3/044 G06F3/041

    CPC分类号: G06F3/044 G06F3/0418

    摘要: A location of contact with a touch sensitive device is determined. Values associated with each electrode of a plurality of electrodes formed on a single layer of the touch sensitive device are sampled. A determination is made as to whether a contact with the touch sensitive device has occurred. Values sampled subsequent to the contact are adjusted based on selected stored sampled values. A location of contact is then determined based on the adjusted values.

    摘要翻译: 确定与触敏装置接触的位置。 对形成在触敏装置的单层上的多个电极的每个电极相关联的值进行采样。 确定是否发生了与触敏设备的接触。 根据所选存储的采样值来调整接触之后采样的值。 然后根据调整后的值确定接触位置。

    MECHANICAL DEFLECTION COMPENSATION FOR A CAPACITIVE TOUCH INPUT DEVICE
    6.
    发明申请
    MECHANICAL DEFLECTION COMPENSATION FOR A CAPACITIVE TOUCH INPUT DEVICE 有权
    用于电容触摸输入装置的机械偏移补偿

    公开(公告)号:US20120162094A1

    公开(公告)日:2012-06-28

    申请号:US13013596

    申请日:2011-01-25

    IPC分类号: G06F3/041

    摘要: A location of contact with a touch sensitive device is determined. Output signals associated with a plurality of electrodes such as formed on a single layer of the touch sensitive device are measured to identify a first electrode positioned at an approximate location of contact with the touch sensor. An output signal associated with a different electrode that is separated from the first electrode is measured to determine an undesired signal amount, such as due to deflection. An undesired single amount associated with the first electrode may be estimated based on the undesired signal amount measured at the other electrode. The signal amount measured at the first electrode is then compensated by the estimated undesired signal amount. The location of contact with the touch sensor is then determined based on the compensated signal amount.

    摘要翻译: 确定与触敏装置接触的位置。 测量与多个电极相关联的输出信号,例如形成在触敏装置的单层上,以识别位于与触摸传感器接触的大致位置的第一电极。 测量与从第一电极分离的不同电极相关联的输出信号,以确定不期望的信号量,例如由于偏转。 可以基于在另一个电极处测量的不期望的信号量来估计与第一电极相关联的不期望的单个量。 然后,通过估计的不需要的信号量补偿在第一电极处测量的信号量。 然后基于补偿的信号量来确定与触摸传感器的接触位置。

    Method and apparatus for calibrating targets on a touchscreen
    7.
    发明授权
    Method and apparatus for calibrating targets on a touchscreen 有权
    用于在触摸屏上校准目标的方法和装置

    公开(公告)号:US08164582B2

    公开(公告)日:2012-04-24

    申请号:US12001604

    申请日:2007-12-11

    IPC分类号: G06F3/041

    CPC分类号: G06F3/0418

    摘要: A method for using a touch display system comprises defining local distortion zones within regions of a touchscreen. Each of the local distortion zones has an associated calibration touch point and a target. Coordinates of a user touch point are distorted within a first local distortion zone based on a location of the user touch point within the first local distortion zone.

    摘要翻译: 一种使用触摸显示系统的方法包括在触摸屏的区域内限定局部失真区域。 每个局部失真区域都具有相关的校准触点和目标。 基于第一局部失真区域内的用户触摸点的位置,用户触摸点的坐标在第一局部失真区域内变形。

    Bezel-less Acoustic Touch Apparatus
    8.
    发明申请
    Bezel-less Acoustic Touch Apparatus 有权
    无挡边声学触摸设备

    公开(公告)号:US20110234545A1

    公开(公告)日:2011-09-29

    申请号:US13012513

    申请日:2011-01-24

    IPC分类号: G06F3/043

    CPC分类号: G06F3/0436 G06F3/0416

    摘要: An acoustic touch apparatus is provided that includes a substrate capable of propagating surface acoustic waves, such as Rayleigh-type or Love-type waves. The substrate has a front surface, a back surface, and a curved connecting surface formed between the front surface and the back surface. The apparatus also includes at least one acoustic wave transducer and at least one reflective array, the acoustic wave transducer and the reflective array behind the back surface of the substrate. The acoustic wave transducer is capable of transmitting or receiving surface acoustic waves to or from the reflective array. The reflective array is capable of acoustically coupling the surface acoustic waves to propagate from the back surface and across the front surface via the curved connecting surface. Various types of acoustic touch apparatus with edge sensitive touch functions can be provided, according to specific embodiments.

    摘要翻译: 提供一种声学触摸装置,其包括能够传播表面声波的基板,例如瑞利型或爱型波。 基板具有形成在前表面和后表面之间的前表面,后表面和弯曲的连接表面。 该装置还包括至少一个声波换能器和至少一个反射阵列,声波换能器和在基底后表面后面的反射阵列。 声波换能器能够向或从反射阵列发射或接收表面声波。 反射阵列能够声表面耦合表面声波,从而通过弯曲的连接表面从后表面和前表面传播。 根据具体实施例,可以提供具有边缘敏感触摸功能的各种类型的声学触摸设备。

    TOUCH PANEL THAT HAS AN IMAGE LAYER AND DETECTS BENDING WAVES
    9.
    发明申请
    TOUCH PANEL THAT HAS AN IMAGE LAYER AND DETECTS BENDING WAVES 有权
    具有图像层和检测弯曲波的触摸板

    公开(公告)号:US20110199315A1

    公开(公告)日:2011-08-18

    申请号:US12705690

    申请日:2010-02-15

    IPC分类号: G06F3/041

    摘要: A touch panel includes a substrate that has top and bottom surfaces. A reflective image layer has top and bottom surfaces and displays an image. The bottom surface of the reflective image layer is bonded to the top surface of the substrate to form a stack having top and bottom sides. At least one sensor detects signals associated with bending waves propagating through the stack. The signals are used to identify coordinate locations of at least one touch event on the top or bottom sides of the stack, or to identify coordinate locations of touch events on both of the top and bottom sides of the stack.

    摘要翻译: 触摸面板包括具有顶表面和底表面的基底。 反射图像层具有顶部和底部表面并且显示图像。 反射图像层的底表面结合到基板的顶表面以形成具有顶侧和底侧的堆叠。 至少一个传感器检测与通过堆叠传播的弯曲波相关联的信号。 信号用于识别堆叠的顶部或底部上的至少一个触摸事件的坐标位置,或者识别在堆叠的顶部和底部两者上的触摸事件的坐标位置。

    Dynamic corrections for a non-linear touchscreen
    10.
    发明授权
    Dynamic corrections for a non-linear touchscreen 有权
    非线性触摸屏的动态校正

    公开(公告)号:US07180508B2

    公开(公告)日:2007-02-20

    申请号:US10246059

    申请日:2002-09-17

    IPC分类号: G09G5/00

    CPC分类号: G06F3/045 G06F3/044

    摘要: The present invention provides a way to measure and track non-linear corrections in touchscreens. Some or all of the relevant non-linear corrections may be determined automatically. Production floor test equipment may make electronic measurements, compute parameters, and load the parameters in non-volatile memory of the controller electronics. Alternatively, the controller electronics can make the electronic measurements and determine non-linear parameters. The latter embodiment of the invention permits the determination of non-linear parameters in the field, dynamically tracking changes in the non-linear characteristics of installed touchscreens that occur over time or due to environmental conditions.

    摘要翻译: 本发明提供了一种在触摸屏中测量和跟踪非线性校正的方法。 可以自动确定部分或全部相关的非线性校正。 生产地板测试设备可以进行电子测量,计算参数,并将参数加载到控制器电子设备的非易失性存储器中。 或者,控制器电子器件可进行电子测量并确定非线性参数。 本发明的后一个实施例允许确定现场中的非线性参数,动态跟踪随时间或由于环境条件而发生的安装的触摸屏的非线性特性的变化。