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公开(公告)号：US09444453B2
公开(公告)日：2016-09-13
申请号：US12558380
申请日：2009-09-11
CPC分类号： G06F3/0418 , G02F1/13338 , G06F3/044 , G06F2203/04104 , H03K17/962 , H03K2217/960705
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。
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公开(公告)号：US09176604B2
公开(公告)日：2015-11-03
申请号：US13560953
申请日：2012-07-27
IPC分类号： G06F3/033 , G06F3/0354 , G06F3/041 , G06F3/044
CPC分类号： G06F3/03545 , G06F3/033 , G06F3/041 , G06F3/044
摘要： Styluses capable of generating stylus stimulation signals and touch sensitive devices capable of receiving stylus stimulation signals are disclosed. In one example, a stylus can receive a stimulation signal from a touch sensor of a touch sensitive device and generate a stylus stimulation signal by changing an amplitude or frequency of the received stimulation signal. The stylus can transmit the stylus stimulation signal back into the touch sensor of the touch sensitive device. The touch sensor can generate a touch signal based on the device's own stimulation signals and the stylus stimulation signal. The touch sensitive device can process the touch signal to determine a location of the stylus on the touch sensor. The stylus can include a force sensor to detect an amount of force applied to a tip of the stylus. The stylus stimulation signal can be modulated based on the force detected by the force sensor.
摘要翻译： 公开了能够产生触针刺激信号的手枪和能够接收触笔刺激信号的触敏装置。 在一个示例中，触针可以从触敏设备的触摸传感器接收刺激信号，并通过改变所接收的刺激信号的幅度或频率来产生触针刺激信号。 触控笔可以将触针刺激信号传送回触敏装置的触摸传感器。 触摸传感器可以基于设备自身的刺激信号和触针刺激信号产生触摸信号。 触敏设备可以处理触摸信号以确定触控笔在触摸传感器上的位置。 触针可以包括力传感器以检测施加到触针尖端的力的量。 可以基于由力传感器检测到的力来调制触针刺激信号。
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公开(公告)号：US20140028635A1
公开(公告)日：2014-01-30
申请号：US13560960
申请日：2012-07-27
申请人： Christoph Horst KRAH
发明人： Christoph Horst KRAH
IPC分类号： G06F3/033
CPC分类号： G06F3/041 , G06F3/03545
摘要： Modular styluses having a base module an expansion module are disclosed. The base module can include a stylus tip, a stylus stimulation signal circuit capable of generating a stimulation signal, a processor for controlling the stylus stimulation signal circuit, and a connection interface for selectively connecting the base module to an expansion module. The expansion module can include a power source for providing power to the stylus stimulation signal circuit and the processor. The expansion module can also include one or more of a power source, camera, audio recorder, communication circuit, gyroscope, accelerometer, laser pointer, projector, or the like. The projector can be used to display an image on a surface and to allow a user to edit a document by moving the stylus across the projected image.
摘要翻译： 公开了具有基座模块和扩展模块的模块化笔迹。 基座模块可以包括触针尖，能够产生刺激信号的触针刺激信号电路，用于控制触针刺激信号电路的处理器，以及用于选择性地将基本模块连接到扩展模块的连接接口。 扩展模块可以包括用于向触针刺激信号电路和处理器提供电力的电源。 扩展模块还可以包括电源，照相机，音频记录器，通信电路，陀螺仪，加速度计，激光指示器，投影仪等中的一个或多个。 该投影仪可用于在表面上显示图像，并允许用户通过在拍摄图像上移动触笔来编辑文档。
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公开(公告)号：US08552989B2
公开(公告)日：2013-10-08
申请号：US11760049
申请日：2007-06-08
申请人： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
发明人： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/044 , G06F2203/04103 , G06F2203/04112
摘要： Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
摘要翻译： 这里公开了将触摸感测元件与显示电路集成的液晶显示（LCD）触摸屏。 整合可能采取各种形式。 触摸感应元件可以在LCD叠层中完全实现，但不在滤色器板和阵列板之间。 或者，一些触摸感测元件可以在滤色器和阵列板之间，而其它触摸感测元件不在印版之间。 在另一替代方案中，所有触摸感测元件可以在滤色器和阵列板之间。 后一种替代方案可以包括常规和平面内切换（IPS）LCD。 在一些形式中，一个或多个显示结构也可以具有触摸感测功能。 还公开了用于制造和操作这种显示器的技术以及体现这种显示器的各种装置。
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公开(公告)号：US20130207906A1
公开(公告)日：2013-08-15
申请号：US13397643
申请日：2012-02-15
IPC分类号： G06F3/041
CPC分类号： G06F3/0418 , G06F3/044 , H03D2200/0029
摘要： Demodulation circuits and processes for demodulating touch signals from a touch sensor using the demodulation circuits are provided. The demodulation circuits can include circuitry configured to determine an adjustable phase delay based at least in part on a quadrature component of the touch signal or the phase-adjusted touch signal. The demodulation circuit can further include circuitry for applying the adjustable phase delay to the touch signal to compensate for phase delays in the touch signal caused by the touch sensor and/or other components. The demodulation circuit can dynamically change the adjustable phase delay to compensate for time-varying phase delays caused by the touch sensor and/or other components.
摘要翻译： 提供了使用解调电路解调来自触摸传感器的触摸信号的解调电路和处理。 解调电路可以包括被配置为至少部分地基于触摸信号的正交分量或相位调整的触摸信号来确定可调节的相位延迟的电路。 解调电路还可以包括用于将可调相位延迟施加到触摸信号以补偿由触摸传感器和/或其它部件引起的触摸信号中的相位延迟的电路。 解调电路可以动态地改变可调相位延迟，以补偿由触摸传感器和/或其他部件引起的时变相位延迟。
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公开(公告)号：US20130069904A1
公开(公告)日：2013-03-21
申请号：US13234082
申请日：2011-09-15
申请人： Christoph Horst KRAH
发明人： Christoph Horst KRAH
IPC分类号： G06F3/045 , H03K17/16 , H03K5/1252
CPC分类号： G06F3/0418 , G06F3/044 , H03K2217/960705
摘要： A noise rejection circuit for a touch sensitive display is disclosed. The noise rejection circuit can reject noise introduced by the touch sensitive display's display device into its touch panel. The noise rejection circuit can be integrated into the touch circuitry of the touch sensitive display and can include a resistor to sense the noise and an amplifier to isolate the sensed noise for rejection.
摘要翻译： 公开了一种用于触感显示器的噪声抑制电路。 噪声抑制电路可以将触敏显示器的显示装置引入的噪声抑制到其触摸面板中。 噪声抑制电路可以集成到触敏显示器的触摸电路中，并且可以包括用于感测噪声的电阻器和放大器以隔离所感测的噪声以进行拒绝。
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公开(公告)号：US08243027B2
公开(公告)日：2012-08-14
申请号：US11760060
申请日：2007-06-08
申请人： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
发明人： Steve Porter Hotelling , Wei Chen , Christoph Horst Krah , John Greer Elias , Wei Hsin Yao , John Z. Zhong , Andrew Bert Hodge , Brian Richards Land , Willem den Boer
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/044 , G06F2203/04103 , G06F2203/04112
摘要： Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
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公开(公告)号：US20120157167A1
公开(公告)日：2012-06-21
申请号：US13340153
申请日：2011-12-29
CPC分类号： G06F3/0418 , G06F1/3203 , G06F1/3262 , G06F3/041 , G06F3/0416 , G06F3/044 , G06F2203/04104
摘要： A system and method for autonomously scanning a sensor panel device, is disclosed. A sensor panel processor can be disabled after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. If one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, then the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. The sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.
摘要翻译： 公开了一种用于自主扫描传感器面板装置的系统和方法。 传感器面板处理器可以在经过第一预定量的时间之后被禁用，而传感器面板装置不会感测任何事件。 还可以禁用一个或多个系统时钟来节省电力。 当处理器和一个或多个系统时钟被禁用时，传感器面板设备可以周期性地自动扫描传感器面板以进行触摸活动。 如果自主扫描的一个或多个结果超过阈值，则传感器面板设备重新启用处理器和一个或多个时钟来主动扫描传感器面板。 如果不超过阈值，则传感器面板设备将继续周期性地自动扫描传感器面板，而无需处理器的干预。 传感器面板设备可以周期性地执行校准功能，以解决系统中可能存在的漂移。
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公开(公告)号：US20120113064A1
公开(公告)日：2012-05-10
申请号：US12940870
申请日：2010-11-05
IPC分类号： G06F3/041
CPC分类号： G06F3/0412 , G06F3/0418
摘要： A touch sensitive device having circuitry to compensate for crosstalk from the device display to the device touch sensor panel is disclosed. The crosstalk compensation circuitry can include a downsampler and a crosstalk compensator. The downsampler can downsample a display image to a manageable size for transmission and processing and can then send the downsampled image to the crosstalk compensator so as to provide information about the display operation that can be used to estimate the expected amount of crosstalk caused by the display. The crosstalk compensator can estimate the amount of crosstalk based on the downsampled image and can then compensate a touch image captured by the touch sensor panel for the estimated amount, the touch image being indicative of a touch or hover event at the panel.
摘要翻译： 公开了具有用于补偿从设备显示器到设备触摸传感器面板的串扰的电路的触敏设备。 串扰补偿电路可以包括下采样器和串扰补偿器。 下采样器可以将显示图像下采样到可管理的尺寸用于传输和处理，然后可以将下采样图像发送到串扰补偿器，以便提供关于可用于估计由显示器引起的串扰预期量的显示操作的信息 。 串扰补偿器可以基于下采样图像估计串扰量，然后可以补偿由触摸传感器面板捕获的触摸图像的估计量，触摸图像指示面板上的触摸或悬停事件。
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公开(公告)号：US20120098778A1
公开(公告)日：2012-04-26
申请号：US13343604
申请日：2012-01-04
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F1/3262 , G06F3/03545 , G06F3/041 , G06F3/044 , G06F2203/04104
摘要： A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.
摘要翻译： 公开了一种可自主扫描传感器面板的装置。 可以通过实现信道扫描逻辑来执行自主扫描。 在一个实施例中，信道扫描逻辑执行处理器通常将承担的许多功能，包括产生定时序列和获得结果数据; 将扫描结果数据与阈值进行比较（例如，以自动扫描模式）; 生成行数; 选择一个或多个扫描频带; 电源管理控制; 并以低功率模式执行自动扫描程序。
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