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1. 发明授权

US08120591B2 Detection of low noise frequencies for multiple frequency sensor panel stimulation 有权
标题翻译：检测多频率传感器面板刺激的低噪声频率
公开(公告)号：US08120591B2
公开(公告)日：2012-02-21
申请号：US12904012
申请日：2010-10-13
申请人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0418 , G06F3/044
摘要： The identification of low noise stimulation frequencies for detecting and localizing touch events on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a separate sense line in a touch sensor panel and can have multiple mixers, each mixer using a demodulation frequency of a particular frequency, phase and delay. With no stimulation signal applied to any drive lines in the touch sensor panel, pairs of mixers can demodulate the sum of the output of all sense channels using the in-phase (I) and quadrature (Q) signals of a particular frequency. The demodulated outputs of each mixer pair can be used to calculate the magnitude of the noise at that particular frequency, wherein the lower the magnitude, the lower the noise at that frequency. Several low noise frequencies can be selected for use in a subsequent touch sensor panel scan function.
摘要翻译：公开了用于检测和定位触摸传感器面板上的触摸事件的低噪声刺激频率的识别。多个感测通道中的每一个可以耦合到触摸传感器面板中的单独的感测线，并且可以具有多个混频器，每个混频器使用特定频率，相位和延迟的解调频率。在没有刺激信号施加到触摸传感器面板中的任何驱动线路的情况下，成对的混频器可以使用特定频率的同相（I）和正交（Q）信号来解调所有感测通道的输出之和。每个混频器对的解调输出可用于计算该特定频率处的噪声幅度，其中幅度越小，该频率处的噪声越低。可以选择几种低噪声频率用于随后的触摸传感器面板扫描功能。

2. 发明申请

US20080309625A1 Multiple simultaneous frequency detection 有权
标题翻译：多重同频检测
公开(公告)号：US20080309625A1
公开(公告)日：2008-12-18
申请号：US11818345
申请日：2007-06-13
申请人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G02F1/13338 , G06F3/041 , G06F3/0412 , G06F3/0418 , G06F3/044 , G06F2203/04104
摘要： The use of multiple stimulation frequencies and phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have multiple mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.
摘要翻译：公开了使用多个刺激频率和相位以在触摸传感器面板上产生触摸图像。多个感测通道中的每一个可以耦合到触摸传感器面板中的列并且可以具有多个混合器。感测通道中的每个混频器可以利用能够产生特定频率的解调频率的电路。在多个步骤中的每一个步骤中，可以使用选定频率的各个相位来同时刺激触摸传感器面板的行，并且每个感测通道中的多个混频器可以被配置为解调从连接到每个感测通道的列接收的信号，使用所选频率。所有步骤完成后，来自多个混音器的解调信号可用于计算，以确定每个频率下触摸传感器面板的触摸图像。

3. 发明授权

US08493331B2 Touch detection using multiple simultaneous frequencies 有权
公开(公告)号：US08493331B2
公开(公告)日：2013-07-23
申请号：US11818345
申请日：2007-06-13
申请人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041 , G09G5/00
CPC分类号： G06F3/0416 , G02F1/13338 , G06F3/041 , G06F3/0412 , G06F3/0418 , G06F3/044 , G06F2203/04104
摘要： The use of multiple stimulation frequencies and phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have multiple mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.

4. 发明申请

US20110025634A1 DETECTION OF LOW NOISE FREQUENCIES FOR MULTIPLE FREQUENCY SENSOR PANEL STIMULATION 有权
标题翻译：检测多个频率传感器面板刺激的低噪声频率
公开(公告)号：US20110025634A1
公开(公告)日：2011-02-03
申请号：US12904012
申请日：2010-10-13
申请人： Christoph Horst KRAH , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst KRAH , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041 , H04M1/03
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0418 , G06F3/044
摘要： The identification of low noise stimulation frequencies for detecting and localizing touch events on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a separate sense line in a touch sensor panel and can have multiple mixers, each mixer using a demodulation frequency of a particular frequency, phase and delay. With no stimulation signal applied to any drive lines in the touch sensor panel, pairs of mixers can demodulate the sum of the output of all sense channels using the in-phase (I) and quadrature (Q) signals of a particular frequency. The demodulated outputs of each mixer pair can be used to calculate the magnitude of the noise at that particular frequency, wherein the lower the magnitude, the lower the noise at that frequency. Several low noise frequencies can be selected for use in a subsequent touch sensor panel scan function.
摘要翻译：公开了用于检测和定位触摸传感器面板上的触摸事件的低噪声刺激频率的识别。多个感测通道中的每一个可以耦合到触摸传感器面板中的单独的感测线，并且可以具有多个混频器，每个混频器使用特定频率，相位和延迟的解调频率。在没有刺激信号施加到触摸传感器面板中的任何驱动线路的情况下，成对的混频器可以使用特定频率的同相（I）和正交（Q）信号来解调所有感测通道的输出之和。每个混频器对的解调输出可用于计算该特定频率处的噪声幅度，其中幅度越小，该频率处的噪声越低。可以选择几种低噪声频率用于随后的触摸传感器面板扫描功能。

5. 发明授权

US07876311B2 Detection of low noise frequencies for multiple frequency sensor panel stimulation 有权
标题翻译：检测多频率传感器面板刺激的低噪声频率
公开(公告)号：US07876311B2
公开(公告)日：2011-01-25
申请号：US11818454
申请日：2007-06-13
申请人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0418 , G06F3/044
摘要： The identification of low noise stimulation frequencies for detecting and localizing touch events on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a separate sense line in a touch sensor panel and can have multiple mixers, each mixer using a demodulation frequency of a particular frequency, phase and delay. With no stimulation signal applied to any drive lines in the touch sensor panel, pairs of mixers can demodulate the sum of the output of all sense channels using the in-phase (I) and quadrature (Q) signals of a particular frequency. The demodulated outputs of each mixer pair can be used to calculate the magnitude of the noise at that particular frequency, wherein the lower the magnitude, the lower the noise at that frequency. Several low noise frequencies can be selected for use in a subsequent touch sensor panel scan function.
摘要翻译：公开了用于检测和定位触摸传感器面板上的触摸事件的低噪声刺激频率的识别。多个感测通道中的每一个可以耦合到触摸传感器面板中的单独的感测线，并且可以具有多个混频器，每个混频器使用特定频率，相位和延迟的解调频率。在没有刺激信号施加到触摸传感器面板中的任何驱动线路的情况下，成对的混频器可以使用特定频率的同相（I）和正交（Q）信号来解调所有感测通道的输出之和。每个混频器对的解调输出可用于计算该特定频率处的噪声幅度，其中幅度越小，该频率处的噪声越低。可以选择几种低噪声频率用于随后的触摸传感器面板扫描功能。

6. 发明申请

US20080309628A1 Detection of low noise frequencies for multiple frequency sensor panel stimulation 有权
标题翻译：检测多频率传感器面板刺激的低噪声频率
公开(公告)号：US20080309628A1
公开(公告)日：2008-12-18
申请号：US11818454
申请日：2007-06-13
申请人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
发明人： Christoph Horst Krah , Steve Porter Hotelling , Sean Erik O'Connor , Wayne Carl Westerman
IPC分类号： G06F3/041 , G06F17/00 , H04M1/00
CPC分类号： G06F3/0412 , G02F1/13338 , G06F3/0418 , G06F3/044
摘要： The identification of low noise stimulation frequencies for detecting and localizing touch events on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a separate sense line in a touch sensor panel and can have multiple mixers, each mixer using a demodulation frequency of a particular frequency, phase and delay. With no stimulation signal applied to any drive lines in the touch sensor panel, pairs of mixers can demodulate the sum of the output of all sense channels using the in-phase (I) and quadrature (Q) signals of a particular frequency. The demodulated outputs of each mixer pair can be used to calculate the magnitude of the noise at that particular frequency, wherein the lower the magnitude, the lower the noise at that frequency. Several low noise frequencies can be selected for use in a subsequent touch sensor panel scan function.
摘要翻译：公开了用于检测和定位触摸传感器面板上的触摸事件的低噪声刺激频率的识别。多个感测通道中的每一个可以耦合到触摸传感器面板中的单独的感测线，并且可以具有多个混频器，每个混频器使用特定频率，相位和延迟的解调频率。在没有刺激信号施加到触摸传感器面板中的任何驱动线路的情况下，成对的混频器可以使用特定频率的同相（I）和正交（Q）信号来解调所有感测通道的输出之和。每个混频器对的解调输出可用于计算该特定频率处的噪声幅度，其中幅度越小，该频率处的噪声越低。可以选择几种低噪声频率用于随后的触摸传感器面板扫描功能。

7. 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。

8. 发明授权

US08243027B2 Touch screen liquid crystal display 有权
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
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.

9. 发明申请

US20090189867A1 Auto Scanning for Multiple Frequency Stimulation Multi-Touch Sensor Panels 审中-公开
标题翻译：自动扫描多频刺激多点传感器面板
公开(公告)号：US20090189867A1
公开(公告)日：2009-07-30
申请号：US12022572
申请日：2008-01-30
申请人： Christoph Horst KRAH , Steve Porter Hotelling
发明人： Christoph Horst KRAH , Steve Porter Hotelling
IPC分类号： G06F3/041
CPC分类号： G06F3/044
摘要： The use of multiple stimulation frequencies and phases is disclosed to detect touch events on a touch sensor panel in a low-power state. Simultaneously during every frame, a number of rows of the touch sensor panel can be driven with a positive phase of one or more stimulation signals, and the same number of different rows can be driven with the anti-phase of those same stimulation signals. Because the same number of rows are stimulated with the in-phase and anti-phase components of the one or more stimulation signals, the resulting charges injected into a given column cancel each other out. However, a touch event will create an imbalance, and a non-zero charge will be detected. The detection of the touch event can then trigger the system to wake up, activate a panel processor, and perform a full panel scan, where the location of the touch event can be identified.
摘要翻译：公开了使用多个刺激频率和相位以在低功率状态下检测触摸传感器面板上的触摸事件。同时在每个帧期间，可以用一个或多个刺激信号的正相驱动多个触摸传感器面板的行，并且可以用相同刺激信号的反相来驱动相同数量的不同行。因为相同数量的行被一个或多个刺激信号的同相和反相分量刺激，所以注入给定列的所得电荷彼此抵消。然而，触摸事件将产生不平衡，并且将检测到非零电荷。然后，触摸事件的检测可以触发系统唤醒，激活面板处理器，并执行全面板扫描，触摸事件的位置可以被识别。

10. 发明授权

US08035622B2 SAR ADC with dynamic input scaling and offset adjustment 有权
标题翻译： SAR ADC，具有动态输入缩放和偏移调整
公开(公告)号：US08035622B2
公开(公告)日：2011-10-11
申请号：US12057262
申请日：2008-03-27
申请人： Steve Porter Hotelling , Christoph Horst Krah
发明人： Steve Porter Hotelling , Christoph Horst Krah
IPC分类号： G06F3/041
CPC分类号： G06F3/044 , G06F3/0416 , G06F3/05 , G06F2203/04106
摘要： An apparatus for generating an image of touch on or about a touch-sensitive surface comprising a touch panel is disclosed. The touch panel can include a plurality of touch sensors configured for detecting one or more touch events occurring at distinct locations at about the same time. Each touch event can comprise a touching of an object against the touch-sensitive surface. A plurality of receive channels can be coupled to the touch panel for generating values representative of detected touch events. The receive channels can include a charge redistribution successive approximation register digital-to-analog converter (SAR ADC) configured to convert an analog waveform into a digital representation via a binary search and outputting the digital representation to an output register. The SAR ADC architecture can be such that it the dynamic input range can be scaled and offset adjusted.
摘要翻译：公开了一种用于在包括触摸面板的触敏表面上或周围产生触摸图像的装置。触摸面板可以包括多个触摸传感器，其被配置用于在大约相同的时间检测在不同位置发生的一个或多个触摸事件。每个触摸事件可以包括对触摸敏感表面的物体的触摸。可以将多个接收通道耦合到触摸面板，以产生表示检测到的触摸事件的值。接收通道可以包括电荷再分配逐次逼近寄存器数模转换器（SAR ADC），其经配置以通过二进制搜索将模拟波形转换为数字表示，并将数字表示输出到输出寄存器。 SAR ADC架构可以使其动态输入范围可以进行缩放和偏移调整。

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