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公开(公告)号：US10254890B2
公开(公告)日：2019-04-09
申请号：US15093638
申请日：2016-04-07
Applicant: Apple Inc.
Inventor： Steve Porter Hotelling , Brian Richards Land
Abstract: A touch surface device having improved sensitivity and dynamic range is disclosed. In one embodiment, the touch surface device includes a touch-sensitive panel having at least one sense node for providing an output signal indicative of a touch or no-touch condition on the panel; a compensation circuit, coupled to the at least one sense node, for generating a compensation signal that when summed with the output signal removes an undesired portion of the output signal so as to generated a compensated output signal; and an amplifier having an inverting input coupled to the output of the compensation circuit and a non-inverting input coupled to a known reference voltage.
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公开(公告)号：US09310912B2
公开(公告)日：2016-04-12
申请号：US14273403
申请日：2014-05-08
Applicant: Apple Inc.
Inventor： Brian Richards Land , Wayne Carl Westerman , Steve Porter Hotelling
CPC classification number: G06F3/044 , G06F3/041 , G06F3/0418 , G06F2203/04104 , G06F2203/04108
Abstract: Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.
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公开(公告)号：US10725587B2
公开(公告)日：2020-07-28
申请号：US16367024
申请日：2019-03-27
Applicant: Apple Inc.
Inventor： Steve Porter Hotelling , Brian Richards Land
Abstract: A touch surface device having improved sensitivity and dynamic range is disclosed. In one embodiment, the touch surface device includes a touch-sensitive panel having at least one sense node for providing an output signal indicative of a touch or no-touch condition on the panel; a compensation circuit, coupled to the at least one sense node, for generating a compensation signal that when summed with the output signal removes an undesired portion of the output signal so as to generated a compensated output signal; and an amplifier having an inverting input coupled to the output of the compensation circuit and a non-inverting input coupled to a known reference voltage.
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公开(公告)号：US09836160B2
公开(公告)日：2017-12-05
申请号：US15268421
申请日：2016-09-16
Applicant: Apple Inc.
Inventor： Steven P. Hotelling , Brian Richards Land
CPC classification number: G06F3/0416 , G02F1/13338 , G02F2001/133342 , G06F1/1692 , G06F3/0412 , G06F3/044 , G06F3/047 , G06F2203/04103 , G06F2203/04104 , G06F2203/04107 , G09G5/003 , G09G2300/04
Abstract: A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.
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公开(公告)号：US20140139457A1
公开(公告)日：2014-05-22
申请号：US14047960
申请日：2013-10-07
Applicant: Apple Inc.
Inventor： 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: G06F3/041 , G02F1/1333
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/0416 , G06F3/044 , G09G3/3648 , G09G2300/0426 , G09G2300/0439 , G09G2300/0478 , Y10T29/49826
Abstract: Liquid crystal display (LCD) touch screens integrate touch sensing elements with display circuitry and may include in-plane-switching (IPS) LCDs. A method of operating the integrated touch sensing elements with the display circuitry includes dividing touch-sensing circuitry of the touch screen into a plurality of drive segments, each drive segment overlapping one or more display rows; updating the display at a predetermined refresh rate; stimulating the plurality of drive segments at a predetermined scan rate; and changing the sequence of stimulating the plurality of drive segments as required to prevent simultaneously stimulating a drive segment that overlaps a display row currently being updated.
Abstract translation: 液晶显示器（LCD）触摸屏将触摸感应元件与显示电路集成，并可能包括平面内切换（IPS）LCD。 使用显示电路操作集成触摸感测元件的方法包括将触摸屏的触摸感测电路划分为多个驱动段，每个驱动段与一个或多个显示行重叠; 以预定的刷新率更新显示; 以预定的扫描速率刺激所述多个驱动段; 以及根据需要改变刺激所述多个驱动段的顺序以防止同时刺激与当前正被更新的显示行重叠的驱动段。
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Patent Agency Ranking
公开(公告)号：US20130093710A1
公开(公告)日：2013-04-18
申请号：US13708675
申请日：2012-12-07
Applicant: Apple Inc.
Inventor： Brian Richards Land , Wayne Carl Westerman , Steve Porter Hotelling
IPC: G06F3/041
CPC classification number: G06F3/044 , G06F3/041 , G06F3/0418 , G06F2203/04104 , G06F2203/04108
Abstract: Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.
Abstract translation: 传感器面板子系统首次启动时，最初可以使用预先存储的无触摸或无悬停（无事件）传感器输出值，以建立传感器输出值的初始基线，不受手指或其他触摸或悬停的物体的影响 启动期间的传感器面板。 然后可以对该初始基线进行归一化，使得每个传感器为给定量的触摸或悬停生成相同的输出值，从而在传感器面板上提供均匀的响应，并使得能够更容易地检测到随后的触摸或悬停事件。 在初始归一化过程完成之后，可以丢弃预先存储的基线，以利于新捕获的无事件基线，由于温度或其他变化，可能比预先存储的基线更准确。
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公开(公告)号：US11379078B2
公开(公告)日：2022-07-05
申请号：US16993144
申请日：2020-08-13
Applicant: Apple Inc.
Inventor： Brian Richards Land , Wayne Carl Westerman , Steve Porter Hotelling
Abstract: Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.
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公开(公告)号：US11353989B2
公开(公告)日：2022-06-07
申请号：US16937446
申请日：2020-07-23
Applicant: Apple Inc.
Inventor： Steve Porter Hotelling , Brian Richards Land
Abstract: A touch surface device having improved sensitivity and dynamic range is disclosed. In one embodiment, the touch surface device includes a touch-sensitive panel having at least one sense node for providing an output signal indicative of a touch or no-touch condition on the panel; a compensation circuit, coupled to the at least one sense node, for generating a compensation signal that when summed with the output signal removes an undesired portion of the output signal so as to generated a compensated output signal; and an amplifier having an inverting input coupled to the output of the compensation circuit and a non-inverting input coupled to a known reference voltage.
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公开(公告)号：US09575610B2
公开(公告)日：2017-02-21
申请号：US14985283
申请日：2015-12-30
Applicant: Apple Inc.
Inventor： 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: G06F3/041 , G06F3/044 , G09G3/36 , G02F1/1333 , G02F1/1343 , G02F1/1335 , G02F1/1362
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/133514 , G02F1/133528 , G02F1/134309 , G02F1/134363 , G02F1/1362 , G02F2201/124 , G06F3/0416 , G06F3/044 , G06F2203/04103 , G06F2203/04104 , G06F2203/04111 , G06F2203/04112 , G09G3/3648 , G09G2300/0426 , G09G2300/0439 , G09G2300/0456 , G09G2300/0478
Abstract: 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.
Abstract translation: 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：US09465502B2
公开(公告)日：2016-10-11
申请号：US14734998
申请日：2015-06-09
Applicant: Apple Inc.
Inventor： Steven P. Hotelling , Brian Richards Land
CPC classification number: G06F3/0416 , G02F1/13338 , G02F2001/133342 , G06F1/1692 , G06F3/0412 , G06F3/044 , G06F3/047 , G06F2203/04103 , G06F2203/04104 , G06F2203/04107 , G09G5/003 , G09G2300/04
Abstract: A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.
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