公开(公告)号：AU2014208228A1

公开(公告)日：2015-02-19

申请号：AU2014208228

申请日：2014-07-30

Applicant: APPLE INC

Inventor： SHAHPARNIA SHAHROOZ ,  YOUSEFPOR MARDUKE

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. 100-4 104 ------------------ - 102 - 166 106 Slave Drive: 144 140| Controller| 114 -r142 152 MUX+ Drive --- | Controller ----------- --- 1Cnrle aSlave Sense Circuitry 108 Sense Circuitry -- 1507t 148 156$ Spectral Analyzer Touch Processor Wireless i 128 '------------+ *Communication -- Host Processor Chip a 10132 : 130 Program Storage Display Device

公开(公告)号：GB2469374B

公开(公告)日：2013-09-11

申请号：GB201005466

申请日：2010-03-31

Applicant: APPLE INC

Inventor： YOUSEFPOR MARDUKE ,  CHANG SHIH CHANG ,  WHITE KEVIN J ,  HOTELLING STEVEN PORTER

IPC: G06F3/044 ,  G02F1/133 ,  G02F1/1333 ,  G06F3/041

公开(公告)号：AU2013205551A1

公开(公告)日：2013-05-16

申请号：AU2013205551

申请日：2013-04-12

Applicant: APPLE INC

Inventor： HOTELLING STEVEN PORTER ,  YOUSEFPOR MARDUKE ,  CHANG SHIH CHANG ,  ZHONG JOHN Z

IPC: G09G3/36

Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided Circuit elements, such as touch signal lines, drive lines, sense lines, grounding regions, in the display pixel stackups can be grouped together to form touch sensing circuitly that senses touch on or near the display 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 touch on or near the display The multi-function circuit elements can be 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.

公开(公告)号：AU2010202693B2

公开(公告)日：2012-06-21

申请号：AU2010202693

申请日：2010-06-28

Applicant: APPLE INC

Inventor： LAND BRIAN RICHARDS ,  YOUSEFPOR MARDUKE ,  HOTELLING STEVEN PORTER

IPC: G06F3/041

Abstract: Negative pixel compensation in a touch sensitive device is disclosed. The device can compensate for a negative pixel effect in touch signal outputs due to poor grounding of an object touching the device. To do so, the device can switch to a configuration to measure the grounding condition of the touching object and use the measurement to compensate the touch output values from the device accordingly. In the switched configuration, a first set of lines of the device can be switched between a coupling to a stimulation signal input to drive the device, a coupling to a capacitance signal output to output a signal indicative of the object's grounding condition, and a coupling to ground. A second set of lines of the device can be coupled to a touch signal output to output a signal indicative of the object's touch at the device. In addition or alternatively, in the switched configuration, the first set of lines of the device can be switched to function as the second set of lines and vice versa. The grounding signal can be applied to the touch signal to compensate for the negative pixel effect.

公开(公告)号：GB2471772B

公开(公告)日：2012-01-25

申请号：GB201011402

申请日：2010-07-07

Applicant: APPLE INC

Inventor： LAND BRIAN RICHARDS ,  YOUSEFPOR MARDUKE ,  HOTELLING STEVEN PORTER

IPC: G06F3/044 ,  G06F3/041

Abstract: Negative pixel compensation in a touch sensitive device is disclosed. The device can compensate for a negative pixel effect in touch signal outputs due to poor grounding of an object touching the device. To do so, the device can switch to a configuration to measure the grounding condition of the touching object and use the measurement to compensate the touch output values from the device accordingly. In the switched configuration, a first set of lines of the device can be switched between a coupling to a stimulation signal input to drive the device, a coupling to a capacitance signal output to output a signal indicative of the object's grounding condition, and a coupling to ground. A second set of lines of the device can be coupled to a touch signal output to output a signal indicative of the object's touch at the device. In addition or alternatively, in the switched configuration, the first set of lines of the device can be switched to function as the second set of lines and vice versa. The grounding signal can be applied to the touch signal to compensate for the negative pixel effect.

公开(公告)号：GB2474098A

公开(公告)日：2011-04-06

申请号：GB201013997

申请日：2010-08-20

Applicant: APPLE INC

Inventor： HOTELLING STEVEN PORTER ,  YOUSEFPOR MARDUKE ,  CHANG SHIH CHANG ,  ZHONG JOHN Z

IPC: G06F3/044

Abstract: An integrated touch screen display includes multi-function circuit element/s that form part of the display circuitry of the display system that generates an image on the display, and also form part of the touch sensing circuitry of a touch sensing system that senses one or more touches on or near the display. For example, one or more circuit elements of the display pixel stack can form a conductive portion of the touch sensing system, such as a charge collector, which can be operated with switches and conductive lines to sense touch. In an embodiment a common electrode xVcom415 in a fringe field switching LCD can serve as a multifunction circuit element. Using transistors S1, S2 and S3 the common electrodes can operate as a charge collected in a charge transfer capacitive touch sensing system. A xVcom Bridge 423 can connect xVcom of one pixel to be xVcom of an adjacent pixel. During a display phase transistor S1 417 performs switching of data lines 413 to connect data lines to pixel electrodes 416 and transistor S2 419 can switch xVcom lines. During touch operation S1 can be switched off and transistor S2 and transistor S3 can be switched to xVcom and data lines respectively and alternatively so as to operate the charge transfer capacitive sensor.

公开(公告)号：WO2010088653A3

公开(公告)日：2011-04-14

申请号：PCT/US2010022858

申请日：2010-02-02

Applicant: APPLE INC ,  HOTELLING STEVEN PORTER ,  YOUSEFPOR MARDUKE

Inventor： HOTELLING STEVEN PORTER ,  YOUSEFPOR MARDUKE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04112 ,  H03K17/9622

Abstract: Capacitive touch panels may include a plurality of positive voltage lines that are driven at a first phase. These positive voltage lines may be used to provide the drive capacitance signal sensed by one or more sense regions. The touch panels may also include a plurality of negative phase voltage lines that are driven at a phase that is different than the first phase. Both the positive and negative voltage lines may cross-under one or more sense regions. The negative phase voltage lines are able to counter act and reduce the static capacitance in the sense regions.

Abstract translation: 电容触摸面板可以包括在第一阶段被驱动的多个正电压线。 这些正电压线可以用于提供由一个或多个感测区域感测的驱动电容信号。 触摸面板还可以包括以不同于第一相的相位驱动的多个负相电压线。 正电压线和负电压线都可以在一个或多个感测区域下交叉。 负相电压线能够抵消感测区域的动作并降低静态电容。

公开(公告)号：WO2018023080A3

公开(公告)日：2018-03-08

申请号：PCT/US2017044533

申请日：2017-07-28

Applicant: APPLE INC

Inventor： KING BRIAN MICHAEL ,  YEKE YAZDANDOOST MOHAMMAD ,  KHAJEH EHSAN ,  TUCKER AARON SCOTT ,  GOZZINI GIOVANNI ,  YIP MARCUS ,  YOUSEFPOR MARDUKE ,  JADHAV DIGVIJAY A ,  SEN INDRANIL ,  NARANG MOHIT ,  JIANG YI ,  MAJIDZADEH BAFAR VAHID ,  KERAMAT MANSOUR ,  XU HAO

IPC: G06F3/043 ,  G06F1/32 ,  G06F3/041

CPC classification number: G06F3/0436 ,  G06F1/3231 ,  G06F3/0418 ,  G06F3/0433 ,  G06F2203/04104 ,  G06F2203/04106 ,  H01Q1/002 ,  H01Q1/52 ,  H01Q7/005

Abstract: Acoustic touch detection (touch sensing) system architectures and methods can be used to detect an object touching a surface. Position of an object touching a surface can be determined using time-of-flight (TOF) bounding box techniques, or acoustic image reconstruction techniques, for example. Acoustic touch sensing can utilize transducers, such as piezoelectric transducers, to transmit ultrasonic waves along a surface and/or through the thickness of an electronic device. Location of the object can be determined, for example, based on the amount of time elapsing between the transmission of the wave and the detection of the reflected wave. An object in contact with the surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the object can be measured to determine the touch location of the object on the surface of the device.

Abstract translation: 声触摸检测（触摸感测）系统体系结构和方法可用于检测接触表面的物体。 例如，可以使用飞行时间（TOF）边界框技术或声学图像重建技术来确定接触表面的物体的位置。 声学触摸感测可以利用换能器（例如压电换能器）沿着表面和/或通过电子设备的厚度来发射超声波。 对象的位置可以例如基于波的传输和反射波的检测之间流逝的时间量来确定。 与表面接触的物体可与发射波相互作用，导致至少一部分发射波的衰减，重定向和/或反射。 可以测量与物体相互作用后的传输波能的部分，以确定物体在装置表面上的触摸位置。

公开(公告)号：WO2010117885A2

公开(公告)日：2010-10-14

申请号：PCT/US2010029702

申请日：2010-04-01

Applicant: APPLE INC ,  YOUSEFPOR MARDUKE ,  CHANG SHIH CHANG ,  WHITE KEVIN J ,  HOTELLING STEVEN PORTER

Inventor： YOUSEFPOR MARDUKE ,  CHANG SHIH CHANG ,  WHITE KEVIN J ,  HOTELLING STEVEN PORTER

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0412

Abstract: A gate driver circuit for switching gate line voltage supplies between display and touch modes is disclosed. The circuit can include one or more switches configured to switch one or more gate lines of an integrated touch sensitive display between a display mode and a touch mode. During touch mode, the circuit can be configured to switch the gate lines to connect to a more stable voltage supply. The circuit can also be configured to reduce or eliminate interference from the display circuitry to the touch circuitry that could affect touch sensing. During display mode, the circuit can be configured to switch the gate lines to connect to a fluctuating voltage supply.

Abstract translation: 公开了一种用于在显示和触摸模式之间切换栅极线电压源的栅极驱动器电路。 电路可以包括被配置为在显示模式和触摸模式之间切换集成触敏显示器的一个或多个栅极线的一个或多个开关。 在触摸模式下，电路可以配置为切换栅极线以连接到更稳定的电压源。 该电路还可以被配置为减少或消除可能影响触摸感测的从显示电路到触摸电路的干扰。 在显示模式下，电路可以配置为切换栅极线以连接到波动的电源。

公开(公告)号：BR112012001106A2

公开(公告)日：2016-02-23

申请号：BR112012001106

申请日：2010-07-07

Applicant: APPLE INC

Inventor： LAND BRIAN RICHARDS ,  YOUSEFPOR MARDUKE ,  HOTELLING STEVEN PORTER

IPC: G06F3/041