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1. 发明授权

US09444453B2 Measuring body capacitance effect in touch sensitive device 有权
标题翻译：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
申请人： Christoph Horst Krah , Steven Porter Hotelling , Marduke Yousefpor
发明人： Christoph Horst Krah , Steven Porter Hotelling , Marduke Yousefpor
IPC分类号： G06F3/044 , H03K17/96 , G06F3/041
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。

2. 发明申请

US20120113064A1 DOWNSAMPLING DATA FOR CROSSTALK COMPENSATION 有权
标题翻译：用于CROSSTALK补偿的数据
公开(公告)号：US20120113064A1
公开(公告)日：2012-05-10
申请号：US12940870
申请日：2010-11-05
申请人： Kevin J. WHITE , Marduke Yousefpor , Christoph Horst Krah , Steven Porter Hotelling
发明人： Kevin J. WHITE , Marduke Yousefpor , Christoph Horst Krah , Steven Porter Hotelling
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。

3. 发明授权

US09851849B2 Touch device communication 有权
公开(公告)号：US09851849B2
公开(公告)日：2017-12-26
申请号：US12960068
申请日：2010-12-03
申请人： Christoph Horst Krah , Steven Porter Hotelling
发明人： Christoph Horst Krah , Steven Porter Hotelling
IPC分类号： G06F3/045 , G06F3/044 , G06F3/041
CPC分类号： G06F3/044 , G06F3/0416
摘要： A system for data communication between a plurality of touch devices is disclosed. The system can include a first touch device having a first touch surface, and at least one other touch device having at least one other touch surface. The first touch device and the at least one other touch device can include a touch controller detecting communications coupling between the first touch surface and the least one other touch surface. The first touch device and the at least one other touch device can include a communication unit communicating data between the first touch device and the at least one other touch device, via the first touch surface and the at least one other touch surface, when the communications coupling is detected. The communications coupling can be detected when a coupling conduit contacts, or is proximate to, the first touch surface and at least one other touch surface.

4. 发明申请

US20110063154A1 TOUCH CONTROLLER WITH IMPROVED ANALOG FRONT END 有权
标题翻译：具有改进的模拟前端的触控控制器
公开(公告)号：US20110063154A1
公开(公告)日：2011-03-17
申请号：US12558374
申请日：2009-09-11
申请人： Steven Porter HOTELLING , Christoph Horst Krah
发明人： Steven Porter HOTELLING , Christoph Horst Krah
IPC分类号： H03M3/00
CPC分类号： H03M3/494
摘要： A controller for a touch sensor includes a transimpedance amplifier, and a feedback resistor coupled to an input of the transimpedance amplifier and to an output of the transimpedance amplifier. At least one multiplexor may be coupled to the input of the transimpedance amplifier and configured to multiplex a plurality of analog inputs to one dedicated channel. The controller may further include a bandpass filter coupled to the output of the transimpedance amplifier. The output of the bandpass filter may be input to an anti-aliasing filter, which feeds into an analog to digital converter. Alternatively, the output of the bandpass filter may be input to a sigma-delta analog to digital converter.
摘要翻译：用于触摸传感器的控制器包括跨阻抗放大器和耦合到跨阻抗放大器的输入端和反相放大器的输出端的反馈电阻器。至少一个多路复用器可以耦合到跨阻放大器的输入，并且被配置为将多个模拟输入复用到一个专用信道。控制器还可以包括耦合到跨阻放大器的输出的带通滤波器。带通滤波器的输出可以被输入到抗混叠滤波器，该滤波器馈送到模数转换器。或者，带通滤波器的输出可以被输入到Σ-Δ模数转换器。

5. 发明申请

US20090315850A1 Multipoint Touch Surface Controller 审中-公开
公开(公告)号：US20090315850A1
公开(公告)日：2009-12-24
申请号：US12549229
申请日：2009-08-27
申请人： Steven Porter HOTELLING , Christoph Horst Krah , Brian Quentin Huppi
发明人： Steven Porter HOTELLING , Christoph Horst Krah , Brian Quentin Huppi
IPC分类号： G06F3/041
CPC分类号： G06F3/0418 , G06F3/044 , G06F2203/04104
摘要： A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.

6. 发明授权

US09547394B2 Multipoint touch surface controller 有权
标题翻译：多点触控面控制器
公开(公告)号：US09547394B2
公开(公告)日：2017-01-17
申请号：US12549229
申请日：2009-08-27
申请人： Steven Porter Hotelling , Christoph Horst Krah , Brian Quentin Huppi
发明人： Steven Porter Hotelling , Christoph Horst Krah , Brian Quentin Huppi
IPC分类号： G06F3/044 , G06F3/041
CPC分类号： G06F3/0418 , G06F3/044 , G06F2203/04104
摘要： A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.
摘要翻译：本文公开了一种多点触摸表面控制器。控制器包括集成电路，其包括用于驱动电容式多点触摸传感器的输出电路和用于读取传感器的输入电路。本文还公开了各种噪声抑制和动态范围增强技术，其允许控制器在各种条件下与各种传感器一起使用，而无需重新配置硬件。

7. 发明授权

US08913040B2 Downsampling data for crosstalk compensation 有权
标题翻译：用于串扰补偿的下采样数据
公开(公告)号：US08913040B2
公开(公告)日：2014-12-16
申请号：US12940870
申请日：2010-11-05
申请人： Kevin J. White , Marduke Yousefpor , Christoph Horst Krah , Steven Porter Hotelling
发明人： Kevin J. White , Marduke Yousefpor , Christoph Horst Krah , Steven Porter Hotelling
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。

8. 发明授权

US08031094B2 Touch controller with improved analog front end 有权
标题翻译：具有改进的模拟前端的触摸控制器
公开(公告)号：US08031094B2
公开(公告)日：2011-10-04
申请号：US12558374
申请日：2009-09-11
申请人： Steven Porter Hotelling , Christoph Horst Krah
发明人： Steven Porter Hotelling , Christoph Horst Krah
IPC分类号： H03M3/00 , G06F3/041
CPC分类号： H03M3/494
摘要： A controller for a touch sensor includes a transimpedance amplifier, and a feedback resistor coupled to an input of the transimpedance amplifier and to an output of the transimpedance amplifier. At least one multiplexor may be coupled to the input of the transimpedance amplifier and configured to multiplex a plurality of analog inputs to one dedicated channel. The controller may further include a bandpass filter coupled to the output of the transimpedance amplifier. The output of the bandpass filter may be input to an anti-aliasing filter, which feeds into an analog to digital converter. Alternatively, the output of the bandpass filter may be input to a sigma-delta analog to digital converter.
摘要翻译：用于触摸传感器的控制器包括跨阻抗放大器和耦合到跨阻抗放大器的输入端和反相放大器的输出端的反馈电阻器。至少一个多路复用器可以耦合到跨阻放大器的输入，并且被配置为将多个模拟输入复用到一个专用信道。控制器还可以包括耦合到跨阻放大器的输出的带通滤波器。带通滤波器的输出可以被输入到抗混叠滤波器，该滤波器馈送到模数转换器。或者，带通滤波器的输出可以被输入到Σ-Δ模数转换器。

9. 发明授权

US09176604B2 Stylus device 有权
标题翻译：触笔设备
公开(公告)号：US09176604B2
公开(公告)日：2015-11-03
申请号：US13560953
申请日：2012-07-27
申请人： Christoph Horst Krah , Marduke Yousefpor , Kevin J. White , Martin Paul Grunthaner
发明人： Christoph Horst Krah , Marduke Yousefpor , Kevin J. White , Martin Paul Grunthaner
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。

10. 发明授权

US08552989B2 Integrated display and touch screen 有权
标题翻译：集成显示屏和触摸屏
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
IPC分类号： G06F3/041 , G09G5/00 , G09G3/36
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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