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公开(公告)号：US20160378263A1
公开(公告)日：2016-12-29
申请号：US15261578
申请日：2016-09-09
Applicant: Apple Inc.
Inventor： Christoph H. KRAH , Steven P. HOTELLING , Marduke YOUSEFPOR
IPC: G06F3/041 , G02F1/1333 , H03K17/96 , G06F3/044
CPC classification number: G06F3/0418 , G02F1/13338 , G06F3/044 , G06F2203/04104 , H03K17/962 , H03K2217/960705
Abstract: 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.
Abstract translation: 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：US20160154522A1
公开(公告)日：2016-06-02
申请号：US15014884
申请日：2016-02-03
Applicant: Apple Inc.
Inventor： Shahrooz SHAHPARNIA , Marduke YOUSEFPOR
CPC classification number: G06F3/0416 , G06F3/044 , G06F3/047 , G06F2203/04101 , G06F2203/04108 , G06F2203/04112
Abstract: Touch sensors for detecting touch and hover events are disclosed. The touch sensors can include multiple split sense lines and/or multiple split drive lines. The split sense lines and/or split drive lines can include uniformly or non-uniformly spaced prongs. In some examples, the prongs can include uniformly or non-uniformly spaced extensions extending away from the prongs. The prongs and/or extensions can be interleaved with prongs and/or extensions of adjacent drive lines or sense lines.
Abstract translation: 公开了用于检测触摸和悬停事件的触摸传感器。 触摸传感器可以包括多个分离感测线和/或多个分离驱动线。 分离的感测线和/或分裂驱动线可以包括均匀或非均匀分隔的叉。 在一些示例中，插脚可以包括远离插脚延伸的均匀或非均匀间隔的延伸部。 插脚和/或扩展可以与相邻驱动线或感测线的插脚和/或延伸部交错。
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公开(公告)号：US20150363032A1
公开(公告)日：2015-12-17
申请号：US14835515
申请日：2015-08-25
Applicant: Apple Inc.
Inventor： Steven Porter HOTELLING , Marduke YOUSEFPOR , Shih Chang CHANG , John Z. ZHONG
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/041 , G06F3/044 , G06F2203/04103
Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry.
Abstract translation: 提供集成在显示像素堆叠中的触摸感应电路的显示。 集成触摸屏可以包括多功能电路元件，其可以作为显示系统的电路操作以在显示器上生成图像，并且还可以形成感测显示器上或附近的一个或多个触摸的触摸感测系统的一部分。 多功能电路元件可以是例如可以被配置为作为显示系统中的显示电路的存储电容器/电极，公共电极，导线/路径等的显示像素中的电容器，并且， 也可以被配置为作为触摸感测电路的电路元件工作。
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公开(公告)号：US20150338952A1
公开(公告)日：2015-11-26
申请号：US14286949
申请日：2014-05-23
Applicant: Apple Inc.
Inventor： Shahrooz SHAHPARNIA , Marduke YOUSEFPOR
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0418
Abstract: Coded integration of a self-capacitance array to improve signal-to-noise ratio (SNR) of self-capacitance measurements is disclosed. A composite measurement of the self-capacitance of a plurality of electrodes can be measured for a plurality of integration periods. The composite measurements can include weighted contributions of charge from the plurality of electrodes, the weighting corresponding to a code. In some examples, the weighted contribution can include positive contributions integrated by a first integrator circuit and negative contributions integrated by a second integrator circuit. The composite measurements of the self-capacitance for the plurality of integration periods can be decoded to extract the self-capacitance measurement for the electrodes. The SNR for the self-capacitance measurements can therefore be improved by increasing the number of samples during the total integration period without requiring dedicated sensing circuitry for the electrodes.
Abstract translation: 公开了自电容阵列的编码积分以提高自电容测量的信噪比（SNR）。 可以在多个积分周期中测量多个电极的自电容的复合测量。 复合测量可以包括来自多个电极的电荷的加权贡献，对应于代码的加权。 在一些示例中，加权贡献可以包括由第一积分器电路集成的积极贡献和由第二积分器电路集成的负贡献。 可以对多个积分周期的自电容的复合测量进行解码，以提取电极的自电容测量。 因此，可以通过在总积分期间增加采样数而不需要用于电极的专用感测电路来改善自电容测量的SNR。
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公开(公告)号：US20140043293A1
公开(公告)日：2014-02-13
申请号：US14056841
申请日：2013-10-17
Applicant: APPLE INC.
IPC: G06F3/041
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04104 , G09G5/18
Abstract: A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.
Abstract translation: 用于多触摸传感器的多激励控制器形成在单个集成电路（单芯片）上。 多激励控制器包括发射振荡器，基于发射振荡器的频率产生多个驱动信号的发射信号部分，同时传输驱动信号以驱动多点触摸传感器的多个发射信道， 接收信号，其接收由所述多点触摸传感器的驱动产生的感测信号，接收振荡器和解调部分，所述解调部分基于所述接收振荡器的频率来解调所接收的感测信号以获得感测结果，所述解调部分包括： 解调器和向量运算符。
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Patent Agency Ranking
公开(公告)号：US20130106755A1
公开(公告)日：2013-05-02
申请号：US13717593
申请日：2012-12-17
Applicant: Apple Inc.
Inventor： Steven Porter HOTELLING , Marduke YOUSEFPOR , Shih Chang CHANG , John Z. ZHONG
IPC: G06F3/041
CPC classification number: G06F3/0412 , G02F1/13338 , G06F3/041 , G06F3/044 , G06F2203/04103
Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. An integrated touch screen can include multi-function circuit elements that can operate as circuitry of the display system to generate an image on the display, and can also form part of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels that can be configured to operate as storage capacitors/electrodes, common electrodes, conductive wires/pathways, etc., of the display circuitry in the display system, and that may also be configured to operate as circuit elements of the touch sensing circuitry.
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公开(公告)号：US20230099369A1
公开(公告)日：2023-03-30
申请号：US17933808
申请日：2022-09-20
Applicant: Apple Inc.
Inventor： Sagar R. VAZE , Marduke YOUSEFPOR
Abstract: Differential driving and/or differential sensing can reduce noise in the touch and/or display systems of a touch screen. In some examples, the touch sensor panel can include column and row electrodes routed vertically to a first edge of the touch sensor panel. In some examples, a touch sensor panel can be divided into banks. In some examples, the routing traces for rows can be implemented using four routing tracks per column for three banks. In some examples, the arrangement of routing traces within routing tracks can improve optical characteristics and/or reduce routing trace resistances and loading. In some examples, interconnections between routing traces and row electrodes can have a chevron pattern, an S-shape pattern, or a hybrid pattern. In some examples, differential sense routing can reduce cross-coupling within the touch sensor panel. In some examples, staggering differential drive signals can reduce parasitic signal loss.
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公开(公告)号：US20190087051A1
公开(公告)日：2019-03-21
申请号：US16192664
申请日：2018-11-15
Applicant: APPLE INC.
Inventor： Weijun YAO , Wei Hsin YAO , Yingxuan LI , Bingrui YANG , Marduke YOUSEFPOR , Abbas JAMSHIDI-ROUDBARI , Ahmad AL-DAHLE
Abstract: A self-capacitive touch sensor panel configured to have a portion of both the touch and display functionality integrated into a common layer is provided. The touch sensor panel includes a layer with circuit elements that can switchably operate as both touch circuitry and display circuitry such that during a touch mode of the device the circuit elements operate as touch circuitry and during a display mode of the device the circuit elements operate as display circuitry. The touch mode and display mode can be time multiplexed. By integrating the touch hardware and display hardware into common layers, savings in power, weight and thickness of the device can be realized.
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公开(公告)号：US20170329441A1
公开(公告)日：2017-11-16
申请号：US15666169
申请日：2017-08-01
Applicant: Apple Inc.
Inventor： Christoph H. KRAH , Marduke YOUSEFPOR
CPC classification number: G06F3/044 , G06F3/0418
Abstract: A concurrent touch and negative pixel scan performed at a touch panel is disclosed. The concurrent scan can include sensing an object proximate to the touch panel and sensing a negative pixel effect, based the object's grounding condition, at the touch panel, at the same time. As a result, sense signals indicative of the proximity of the object and coupling signals indicative of the negative pixel effect's magnitude can be captured concurrently. Because the negative pixel effect can cause errors or distortions in the sense signals, the coupling signals can be used to compensate the sense signals for the negative pixel effect.
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30.发明申请公开(公告)号：US20170285804A1
公开(公告)日：2017-10-05
申请号：US15507722
申请日：2014-09-22
Applicant: Apple Inc.
Inventor： Yingxuan LI , Marduke YOUSEFPOR , Weijun YAO
Abstract: A touch controller is disclosed. The touch controller can include sense circuitry configured to sense, during a self-capacitance portion of a touch frame, first one or more self-capacitances associated with a first plurality of touch pixels on a touch sensor panel, and sense, during a mutual capacitance portion of the touch frame, first one or more mutual capacitances associated with the first plurality of touch pixels. A touch processor can be configured to, based on the first one or more self-capacitances and the first one or more mutual capacitances, sense a single touch event associated with the touch frame.
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