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公开(公告)号：US20170090619A1
公开(公告)日：2017-03-30
申请号：US15087956
申请日：2016-03-31
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Shwetabh VERMA
CPC classification number: G06F3/044 , G06F3/0416 , G06F3/0418
Abstract: A touch controller for flexible scanning operation is disclosed. The touch controller can include circuitry configured to perform coarse detection scans, select a fine scan type based on results from the coarse detection scans, and perform a fine scan corresponding to the selected fine scan type. A fine mutual capacitance scan can be performed when conditions corresponding to a poorly grounded or ungrounded object or user are detected based on the coarse detection scans. A fine fully-bootstrapped self-capacitance scan can be performed when conditions corresponding to a well-grounded object or user are detected based on the coarse detection scans. A touch processor can be configured to sense touch events from the fine scan.
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公开(公告)号：US20160224189A1
公开(公告)日：2016-08-04
申请号：US15097179
申请日：2016-04-12
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Shahrooz SHAHPARNIA
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044 , G06F2203/04101 , G06F2203/04107 , G06F2203/04111
Abstract: A touch panel electrode structure for user grounding correction in a touch panel is disclosed. The electrode structure can include an array of electrodes for sensing a touch at the panel, and multiple jumpers for selectively coupling groups of the electrodes together to form electrode rows and columns that cross each other. In some examples, the array can have a linear configuration and can form the rows and columns by coupling diagonally adjacent electrodes using the jumpers in a zigzag pattern, or the array can have a diamond configuration and can form the rows and columns by coupling linearly adjacent electrodes using the jumpers in a linear pattern. In various examples, each electrode can have a solid structure with a square shape, a reduced area with an outer electrode and a physically separate center electrode, a hollow center, or a solid structure with a hexagonal shape.
Abstract translation: 公开了一种用于触摸面板中用户接地校正的触摸面板电极结构。 电极结构可以包括用于感测面板上的触摸的电极阵列，以及用于选择性地将电极组合在一起以形成彼此交叉的电极行和列的多个跳线。 在一些示例中，阵列可以具有线性配置并且可以通过以锯齿形图案使用跳线耦合对角线相邻的电极来形成行和列，或者阵列可以具有金刚石构造，并且可以通过将线性相邻 使用线性图案的跳线的电极。 在各种实施例中，每个电极可以具有方形形状的实心结构，具有外部电极的减小的面积和物理上分离的中心电极，中空中心或具有六边形形状的固体结构。
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公开(公告)号：US20150277664A1
公开(公告)日：2015-10-01
申请号：US14737424
申请日：2015-06-11
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Martin Paul GRUNTHANER
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A touch panel configured to compensate for negative pixel effect is disclosed. The panel can be configured to increase a capacitive sense signal, indicative of a touching or hovering object, in order to compensate for an increase in negative capacitance when the object is poorly grounded. To perform the compensation, the panel can be configured to have split sense lines so as to increase the number of electric fringe fields forming the sense signal, thereby providing a sense signal that is substantially stronger than the negative capacitance signal. Each sense line can be split into two or more strips.
Abstract translation: 公开了一种被配置为补偿负像素效应的触摸面板。 面板可以被配置为增加指示触摸或悬停物体的电容感测信号，以补偿当物体接地不良时负电容的增加。 为了执行补偿，面板可以被配置为具有分割感测线，以便增加形成感测信号的电气条纹场的数量，从而提供比负电容信号显着更强的感测信号。 每条感测线可以分成两条或更多条。
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公开(公告)号：US20150160769A1
公开(公告)日：2015-06-11
申请号：US14627995
申请日：2015-02-20
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Steven P. HOTELLING , Kevin J. WHITE , Shih Chang CHANG
IPC: G06F3/041
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/136286 , G06F1/16 , G06F3/041 , G06F3/0416 , G06F2203/04112 , G09G3/3677
Abstract: Touch screens with more compact border regions can include an active area that includes touch sensing circuitry including drive lines, and a border region around the active area. The border region can include an area of sealant deposited on conductive lines, and transistor circuitry, such as gate drivers, between the active area and the sealant. The conductive lines can extend from the sealant to the active area without electrically connecting to the transistor circuitry. The conductive lines can have equal impedances and can connect the drive lines to a touch controller off of the touch screen. A set of drive signal characteristics for the drive lines can be obtained by determining a transfer function associated with each drive line, obtaining an inverse of each transfer function, and applying a set of individual sense signal characteristics to the inverse transfer functions to obtain the corresponding set of drive signal characteristics.
Abstract translation: 具有更紧凑边框区域的触摸屏可以包括有源区域，其包括包括驱动线的触摸感测电路以及有效区域周围的边界区域。 边界区域可以包括沉积在导电线上的密封剂区域，以及在有源区域和密封剂之间的晶体管电路，例如栅极驱动器。 导电线可以从密封剂延伸到有源区，而不与晶体管电路电连接。 导线可以具有相等的阻抗，并且可以将驱动线连接到远离触摸屏的触摸控制器。 可以通过确定与每个驱动线相关联的传递函数，获得每个传递函数的逆，并将一组单独的感测信号特性应用于逆传递函数来获得用于驱动线的一组驱动信号特性，以获得相应的 一组驱动信号特性。
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公开(公告)号：US20150035768A1
公开(公告)日：2015-02-05
申请号：US14333457
申请日：2014-07-16
Applicant: Apple Inc.
Inventor： Shahrooz SHAHPARNIA , Marduke YOUSEFPOR
IPC: G06F3/041
Abstract: A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.
Abstract translation: 公开了一种可以根据扫描方案配置触摸电路的触摸控制器，其可以定义要在触摸面板上执行的扫描事件的顺序。 触摸控制器可以包括可配置的发射部分以产生用于驱动面板的刺激信号，可配置的接收部分，用于接收和处理来自面板的触摸信号，以及可配置存储器来存储触摸信号。 触摸控制器还可以包括可编程扫描引擎，以根据扫描计划来配置发送部分，接收部分和存储器。 触摸控制器有利地提供更强大和灵活的触摸电路来处理面板上的各种类型的触摸事件。 还公开了一种在面板上的各种触摸事件期间可以产生可被触摸控制器检测到的刺激信号的活动触针。
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Patent Agency Ranking
公开(公告)号：US20140354586A1
公开(公告)日：2014-12-04
申请号：US13907698
申请日：2013-05-31
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Taif Ahmed SYED , Ahmad AL-DAHLE , Kevin J. WHITE , Abbas JAMSHIDI-ROUDBARI , Stephen S. POON
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0412 , G06F2203/04107
Abstract: A touch screen to reduce touch pixel coupling. In some examples, the touch screen can include a first display pixel and a second display pixel in a row of display pixels, where the first display pixel can be configurable to be decoupled from the second display pixel during at least a touch sensing phase of the touch screen. In some examples, the touch screen can include a display pixel having a first and a second transistor, where the second transistor can be electrically connected to a gate terminal of the first transistor, and can be diode-connected. In some examples, the touch screen can include two display pixels, each display pixel having two transistors, where two of the transistors can be electrically connected to a first gate line, and the remaining two transistors can be individually electrically connected to a second and third gate line, respectively.
Abstract translation: 触摸屏可以减少触摸像素耦合。 在一些示例中，触摸屏可以包括一排显示像素中的第一显示像素和第二显示像素，其中第一显示像素可以被配置为在至少一个触摸感测阶段期间与第二显示像素解耦 触摸屏。 在一些示例中，触摸屏可以包括具有第一和第二晶体管的显示像素，其中第二晶体管可以电连接到第一晶体管的栅极端子，并且可以二极管连接。 在一些示例中，触摸屏可以包括两个显示像素，每个显示像素具有两个晶体管，其中两个晶体管可以电连接到第一栅极线，并且剩余的两个晶体管可以单独地电连接到第二和第三晶体管 门线。
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公开(公告)号：US20140267087A1
公开(公告)日：2014-09-18
申请号：US13844349
申请日：2013-03-15
Applicant: APPLE INC.
Inventor： Marduke YOUSEFPOR , Christoph Horst KRAH , Kevin J. WHITE
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F3/0418 , G06F3/044
Abstract: A touch input device configured to mitigate the effects of dynamic cross talk noise is provided. The touch input device can dither an effective resistance of a plurality of gate lines proximal to the touch sensor panel in order to determine if a phase of a touch signal demodulator needs to be adjusted.
Abstract translation: 提供了配置成减轻动态串扰噪声的影响的触摸输入设备。 触摸输入装置可以使接近触摸传感器面板的多个栅极线的有效电阻抖动，以便确定触摸信号解调器的相位是否需要调整。
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公开(公告)号：US20240028155A1
公开(公告)日：2024-01-25
申请号：US18476214
申请日：2023-09-27
Applicant: Apple Inc.
Inventor： Sagar R. VAZE , Marduke YOUSEFPOR , Amit NAYYAR
CPC classification number: G06F3/04164 , G06F3/044 , G06F3/0443 , G06F3/0448 , G06F3/0445 , G06F2203/04112 , G06F3/0446 , G06F3/0412 , G06F2203/04107
Abstract: Differential driving and/or sensing can reduce noise in a touch screen. In some examples, the touch screen can include column and row electrodes routed vertically in the active area. In some examples, the touch electrodes and/or routing traces can be implemented using metal mesh in first and second metal layers. To improve optical performance, overlapping portions of metal mesh can be designed to provide an appearance of uniform width/area. In some examples, a dielectric layer can have an increased thickness and/or a reduced dielectric constant, and/or metal mesh in the first metal layer can be flooded with a transparent conductive material. In some examples, routing traces can be disposed beneath touch electrodes and/or metal mesh for touch electrodes can be flooded with a transparent conductive material without flooding metal mesh for routing traces. In some examples, touch electrodes can be interleaved within a touch node to improve differential cancelation.
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公开(公告)号：US20230384892A1
公开(公告)日：2023-11-30
申请号：US18325565
申请日：2023-05-30
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Mohammad YEKE YAZDANDOOST , Aaron Scott TUCKER , Marcus YIP , Ehsan KHAJEH , Brian Michael KING , Giovanni GOZZINI
CPC classification number: G06F3/04166 , G06F3/043 , G06F3/0436 , G06F2203/04106 , G06F2203/04105
Abstract: Acoustic touch and/or force sensing system architectures and methods for acoustic touch and/or force sensing can be used to detect a position of an object touching a surface and an amount of force applied to the surface by the object. The position and/or an applied force can be determined using time-of-flight (TOF) techniques, for example. Acoustic touch sensing can utilize transducers (e.g., piezoelectric) to simultaneously transmit ultrasonic waves along a surface and through a thickness of a deformable material. The location of the object and the applied force can be determined based on the amount of time elapsing between the transmission of the waves and receipt of the reflected waves. In some examples, an acoustic touch sensing system can be insensitive to water contact on the device surface, and thus acoustic touch sensing can be used for touch sensing in devices that may become wet or fully submerged in water.
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公开(公告)号：US20230118216A1
公开(公告)日：2023-04-20
申请号：US18068486
申请日：2022-12-19
Applicant: Apple Inc.
Inventor： John Stephen SMITH , Amit NAYYAR , Joseph Kurth REYNOLDS , Sagar Rajiv VAZE , Marduke YOUSEFPOR
Abstract: Touch sensor panels (or touch screens) can improve signal-to-noise ratio (SNR) using touch electrode patterns for differential drive and/or differential sense techniques. In some examples, a touch sensor panel can include a two-dimensional array of touch nodes formed from a plurality of touch electrodes. Each column (or row) of touch nodes can be driven with a plurality of drive signals. For example, a first column (or row) of touch nodes can be driven by a first drive signal applied to one or more first touch nodes in the first column (or row) and a second drive signal applied to a one or more second touch nodes of the first column (or row). In some examples, the first drive signal and the second drive signal can be complimentary drive signals. In some examples, each row (or column) of touch electrodes can be sensed by differential sense circuitry.
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