Measuring body capacitance effect in touch sensitive device
    1.
    发明授权
    Measuring body capacitance effect in touch sensitive device 有权
    触敏装置测量体电容效应

    公开(公告)号:US09444453B2

    公开(公告)日:2016-09-13

    申请号:US12558380

    申请日:2009-09-11

    IPC分类号: G06F3/044 H03K17/96 G06F3/041

    摘要: Measuring an effect of body capacitance in a touch sensitive device is disclosed. This effect can be caused by poor grounding of a user or other objects touching the device or of the device itself. The device can operate in a stray capacitance mode to measure a body capacitance effect and in a normal mode to detect a touch on the device. During the stray capacitance mode, the device can obtain a body capacitance measurement from the device. During the normal mode, the device can obtain a touch measurement from the device. The device can calculate a body capacitance factor based on a ratio between the body capacitance measurement and the touch measurement and use the body capacitance factor to compensate for erroneous or distorted touch output values from the device. Various components of the device can be switchably configured according to the particular mode.

    摘要翻译: 公开了测量触敏装置中的身体电容的影响。 这种效果可能是由于接触设备或设备本身的用户或其他对象的接地不良引起的。 器件可以在杂散电容模式下工作,以测量体电容效应,并在正常模式下检测器件上的触摸。 在杂散电容模式期间,器件可以从器件获得体电容测量值。 在正常模式下,设备可以从设备获得触摸测量。 该装置可以基于身体电容测量和触摸测量之间的比率来计算身体电容因数,并使用身体电容因子来补偿来自装置的错误或失真的触摸输出值。 可以根据特定模式切换配置设备的各种组件。

    Additional application of voltage during a write sequence
    3.
    发明授权
    Additional application of voltage during a write sequence 有权
    在写入序列期间额外应用电压

    公开(公告)号:US09183799B2

    公开(公告)日:2015-11-10

    申请号:US13143184

    申请日:2011-05-24

    IPC分类号: G09G3/36 G09G3/32

    摘要: With respect to liquid crystal display inversion schemes, a large change in voltage on a data line can affect the voltages on adjacent data lines due to capacitive coupling between data lines. The resulting change in voltage on these adjacent data lines can give rise to visual artifacts in the data lines' corresponding sub-pixels. Various embodiments of the present disclosure serve to prevent or reduce these visual artifacts by applying voltage to a data line more than once during the write sequence. Doing so can allow erroneous brightening or darkening caused by large voltage swings to be overwritten without causing additional large voltage swings on the data line.

    摘要翻译: 对于液晶显示反转方案,由于数据线之间的电容耦合,数据线上的电压变化很大可能影响相邻数据线上的电压。 由此产生的这些相邻数据线上的电压变化可能引起数据线对应子像素中的视觉伪像。 本公开的各种实施例用于通过在写入序列期间多次施加电压到数据线来防止或减少这些视觉伪影。 这样做可能会导致由于电压波动较大引起的错误增白或变暗而不会在数据线上造成额外的大电压摆幅。

    Touch sensing device having conductive nodes
    4.
    发明授权
    Touch sensing device having conductive nodes 有权
    具有导电节点的触摸感测装置

    公开(公告)号:US08872771B2

    公开(公告)日:2014-10-28

    申请号:US12499028

    申请日:2009-07-07

    CPC分类号: G06F3/044

    摘要: A touch sensing device having conductive nodes is disclosed. The device can include a first structure having one or more conductive electrodes disposed on a surface opposite the structure's touchable surface and a second structure having one or more conductive nodes disposed on a surface. The two surfaces can be placed with the conductive electrodes and conductive nodes facing each other in close proximity so that the electrodes and the nodes can form capacitive elements for sensing a touch on the touchable surface. Separately disposing the conductive nodes from the touchable surface structure can make the touch sensing device thin. An example touch sensing device can be a click wheel.

    摘要翻译: 公开了一种具有导电节点的触摸感测装置。 该装置可以包括具有设置在与结构的可触摸表面相对的表面上的一个或多个导电电极的第一结构和具有设置在表面上的一个或多个导电节点的第二结构。 两个表面可以放置成导电电极和导电节点彼此靠近,使得电极和节点可以形成用于感测可触摸表面上的触摸的电容元件。 从可触摸表面结构单独布置导电节点可以使触摸感测装置变薄。 示例性的触摸感测装置可以是点击轮。

    Negative pixel compensation
    5.
    发明授权
    Negative pixel compensation 有权
    负像素补偿

    公开(公告)号:US08482544B2

    公开(公告)日:2013-07-09

    申请号:US12500870

    申请日:2009-07-10

    IPC分类号: H03K17/96

    摘要: Negative pixel compensation in a touch sensitive device is disclosed. The device can compensate for a negative pixel effect in touch signal outputs due to poor grounding of an object touching the device. To do so, the device can switch to a configuration to measure the grounding condition of the touching object and use the measurement to compensate the touch output values from the device accordingly. In the switched configuration, a first set of lines of the device can be switched between a coupling to a stimulation signal input to drive the device, a coupling to a capacitance signal output to output a signal indicative of the object's grounding condition, and a coupling to ground. A second set of lines of the device can be coupled to a touch signal output to output a signal indicative of the object's touch at the device. In addition or alternatively, in the switched configuration, the first set of lines of the device can be switched to function as the second set of lines and vice versa. The grounding signal can be applied to the touch signal to compensate for the negative pixel effect.

    摘要翻译: 公开了触敏装置中的负像素补偿。 由于接触设备的物体接地不良,该装置可以补偿触摸信号输出中的负像素效应。 为此,设备可以切换到配置以测量触摸对象的接地状态,并使用测量值相应地补偿设备的触摸输出值。 在切换配置中,设备的第一组线路可以在耦合到输入的刺激信号以驱动设备之间切换,耦合到电容信号输出以输出指示对象的接地状态的信号,以及耦合 到地面 设备的第二组线可以耦合到触摸信号输出以输出指示对象在设备处的触摸的信号。 另外或替代地,在切换配置中,设备的第一组线路可以被切换以用作第二组线路,反之亦然。 接地信号可以应用于触摸信号来补偿负像素效应。

    NOISE SUPPRESSION CIRCUIT FOR POWER ADAPTER
    6.
    发明申请
    NOISE SUPPRESSION CIRCUIT FOR POWER ADAPTER 有权
    用于电源适配器的噪声抑制电路

    公开(公告)号:US20130099854A1

    公开(公告)日:2013-04-25

    申请号:US13280885

    申请日:2011-10-25

    IPC分类号: H03K17/16

    CPC分类号: H02M1/44

    摘要: A noise suppression circuit for a power adapter is disclosed. The noise suppression circuit can reduce or eliminate adapter-induced noise that could interfere with an electronic device powered by the adapter. In one example, the noise suppression circuit can include an active circuit to detect and attenuate or cancel the induced noise. In another example, the noise suppression circuit can include an RLC circuit in parallel with the adapter choke to suppress the induced noise at the operating frequencies of the powered electronic device. In still another example, the noise suppression circuit can include a modified adapter Y capacitor connection so as to bypass the adapter choke, thereby reducing or eliminating the choke's induced noise.

    摘要翻译: 公开了一种用于电源适配器的噪声抑制电路。 噪声抑制电路可以减少或消除可能干扰由适配器供电的电子设备的适配器引起的噪声。 在一个示例中,噪声抑制电路可以包括用于检测和衰减或消除感应噪声的有源电路。 在另一示例中,噪声抑制电路可以包括与适配器扼流圈并联的RLC电路,以抑制在动力电子设备的工作频率处的感应噪声。 在又一示例中,噪声抑制电路可以包括修改的适配器Y电容器连接,以绕过适配器扼流圈,从而减少或消除扼流圈的感应噪声。

    STYLUS ORIENTATION DETECTION
    9.
    发明申请
    STYLUS ORIENTATION DETECTION 有权
    STYLUS方位检测

    公开(公告)号:US20120327042A1

    公开(公告)日:2012-12-27

    申请号:US13166743

    申请日:2011-06-22

    IPC分类号: G06F3/033

    CPC分类号: G06F3/044 G06F3/03545

    摘要: Stylus orientation detection is disclosed. In an example, the orientation of a stylus relative to a contacting surface, e.g., a touch panel, can be detected by detecting a capacitance at one or more locations on the stylus relative to the surface, and then using the capacitance(s) to determine the orientation of the stylus relative to the surface. In another example, the orientation of a stylus relative to a contacting surface, e.g., a touch panel, can be detected by first detecting the orientation of the stylus relative to a reference, detecting the orientation of the contacting surface relative to the reference, and then calculating the orientation of the stylus relative to the contacting surface using the two detected orientations.

    摘要翻译: 披露了触笔取向检测。 在一个示例中,触针相对于接触表面(例如触摸面板)的取向可以通过检测触针上相对于表面的一个或多个位置处的电容来检测,然后使用电容 确定触控笔相对于表面的方向。 在另一示例中,触针相对于接触表面(例如触摸面板)的取向可以通过首先检测触针相对于基准的取向,检测接触表面相对于基准的取向来检测,以及 然后使用两个检测到的取向计算触针相对于接触表面的取向。

    CHANGING DISPLAY ARTIFACTS ACROSS FRAMES
    10.
    发明申请
    CHANGING DISPLAY ARTIFACTS ACROSS FRAMES 有权
    更改框架上的显示艺术家

    公开(公告)号:US20120299892A1

    公开(公告)日:2012-11-29

    申请号:US13143183

    申请日:2011-05-24

    IPC分类号: G09G5/00

    摘要: Displaying an image on a display screen is provided by periodically changing the scanning order in which rows of sub-pixels of the display screen are scanned. One scanning order can be selected to scan the rows in the update of a first image frame of the display, and then a different scanning order can be selected to scan the rows in the update of a second image frame. Particular scanning orders can be selected in order to reduce or eliminate the appearance of visual artifacts by changing the location of the visual artifacts across multiple image frames. For example, different scanning orders that result in visual artifacts at different positions on the display screen can be used, and the selection of scanning order can periodically change among the different scanning orders such that the position of the visual artifacts changes periodically during the updating of multiple image frames.

    摘要翻译: 通过周期性地改变其中扫描显示屏幕的子像素行的扫描顺序来提供在显示屏幕上显示图像。 可以选择一个扫描顺序来扫描显示器的第一图像帧的更新中的行,然后可以选择不同的扫描顺序来扫描第二图像帧的更新中的行。 可以选择特定的扫描顺序,以通过改变跨多个图像帧的视觉伪像的位置来减少或消除视觉伪影的出现。 例如,可以使用在显示屏幕上的不同位置导致视觉伪像的不同扫描顺序,并且扫描顺序的选择可以在不同扫描顺序之间周期性地改变,使得视觉伪像的位置在更新期间周期性地改变 多个图像帧。