公开(公告)号：HK1141100A1

公开(公告)日：2010-10-29

申请号：HK10107369

申请日：2010-08-03

Applicant: APPLE INC

Inventor： YOUSEFPOR MARDUKE

IPC: G06F20060101

Abstract: Compensation of pixels included in a touch sensor panel that generate erroneous readings (so called “negative pixels”) due to a poor grounding condition of the object touching the touch sensor panel is disclosed herein. To compensate for the erroneous readings, sense lines of the touch sensor panel can include reverse driving circuits to facilitate calculation of an object-to-ground capacitance. If the calculated object-to-ground capacitance indicates the presence of a poor grounding condition, then the object-to-ground capacitance and detected pixel touch output values are used to estimate new pixel touch output values that are used instead of the detected pixel touch output values to determine touch event(s).

公开(公告)号：GB2469374A

公开(公告)日：2010-10-13

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 ,  G06F3/041

Abstract: A circuit for switching a gate line of a touch sensitive display (e.g. an integrated touch sensitive display) between a first and second configuration connecting the gate line to a voltage supply from display circuitry or touch circuitry. By switching voltages supplies applied to the gate lines of pixel display transistors the effects of fluctuating gate line voltage (i.e. noise) on an associated capacitive touch sensing system can be reduced. The voltage supplied during a touch mode may be ground or a signal used to minimise fluctuations in voltage supply. The switching of voltage supplies may be in response to the mode of the display (display/touch), the degree of fluctuation in the supply voltage from the display supply voltage, on the amount of parasitic capacitance measured in touch circuitry or on the strength of the display voltage.

公开(公告)号：EP3213173A4

公开(公告)日：2018-06-06

申请号：EP15854782

申请日：2015-10-27

Applicant: APPLE INC

Inventor： LI YINGXUAN ,  YAO WEIJUN ,  PANT VIVEK ,  GRUNTHANER MARTIN P ,  YOUSEFPOR MARDUKE ,  RANGANATHAN SUMANT

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.

公开(公告)号：EP3175330A4

公开(公告)日：2017-08-30

申请号：EP14902458

申请日：2014-09-22

Applicant: APPLE INC

Inventor： LI YINGXUAN ,  YOUSEFPOR MARDUKE ,  YAO WEIJUN

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04103 ,  G06F2203/04104

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.

Abstract translation: 公开了一种触摸控制器。 触摸控制器可以包括感测电路，其被配置为在触摸帧的自电容部分期间感测与触摸传感器面板上的第一多个触摸像素相关联的第一一个或多个自电容，并且在互电容 部分触摸帧，与第一多个触摸像素相关联的第一一个或多个互电容。 触摸处理器可以被配置为基于第一一个或更多个自电容和第一一个或更多个互电容来感测与触摸框相关联的单个触摸事件。

公开(公告)号：WO2017058415A3

公开(公告)日：2017-06-08

申请号：PCT/US2016048750

申请日：2016-08-25

Applicant: APPLE INC

Inventor： YOUSEFPOR MARDUKE ,  VERMA SHWETABH

IPC: G06F3/041 ,  G06F3/044

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.

Abstract translation: 公开了一种用于灵活扫描操作的触摸控制器。 触摸控制器可以包括被配置为执行粗略检测扫描的电路，基于粗略检测扫描的结果来选择精细扫描类型，并且执行与所选择的精细扫描类型对应的精细扫描。 当基于粗略检测扫描检测到对应于接地不良或未接地的物体或用户的条件时，可以执行精细的互电容扫描。 基于粗略检测扫描，当检测到与接地良好的物体或用户相对应的条件时，可以执行精确的完全自举的自电容扫描。 触摸处理器可以被配置为感测来自精细扫描的触摸事件。

公开(公告)号：WO2015023397A1

公开(公告)日：2015-02-19

申请号：PCT/US2014047383

申请日：2014-07-21

Applicant: APPLE INC

Inventor： YOUSEFPOR MARDUKE

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/36

Abstract: Touch sensitive displays are disclosed that can include circuitry that is segmented into multiple portions that can be independently operated. Touch sensitive display circuitry can be split in half with an upper portion and a lower portion that can each be independently operated. The separate circuitry portions can be used for performing display operations and for performing touch sensing operations. Display operations can be performed in one portion of the display while touch sensing operations are simultaneously performed in another portion of the display. Periodically, the operation being performed in a given portion of the display can be switched so as to alternatingly update that portion of the display and sense touch events in that region.

Abstract translation: 公开了触敏显示器，其可以包括被分割成可以独立操作的多个部分的电路。 触敏显示电路可以分成两半，每个可独立操作的上部和下部。 单独的电路部分可以用于执行显示操作和用于执行触摸感测操作。 可以在显示器的一部分中执行显示操作，同时在显示器的另一部分中同时执行触摸感测操作。 周期性地，可以切换在显示器的给定部分中执行的操作，以交替地更新该部分显示并感测该区域中的触摸事件。

公开(公告)号：WO2014018185A3

公开(公告)日：2014-04-10

申请号：PCT/US2013046021

申请日：2013-06-14

Applicant: APPLE INC

Inventor： KRAH CHRISTOPH HORST ,  YOUSEFPOR MARDUKE ,  WHITE KEVIN J ,  GRUNTHANER MARTIN PAUL

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/03545 ,  G06F3/033 ,  G06F3/041 ,  G06F3/044

Abstract: Styluses capable of generating stylus stimulation signals and touch sensitive devices capable of receiving stylus stimulation signals are disclosed. In one example, a stylus can receive a stimulation signal from a touch sensor of a touch sensitive device and generate a stylus stimulation signal by changing an amplitude or frequency of the received stimulation signal. The stylus can transmit the stylus stimulation signal back into the touch sensor of the touch sensitive device. The touch sensor can generate a touch signal based on the device's own stimulation signals and the stylus stimulation signal. The touch sensitive device can process the touch signal to determine a location of the stylus on the touch sensor. The stylus can include a force sensor to detect an amount of force applied to a tip of the stylus. The stylus stimulation signal can be modulated based on the force detected by the force sensor.

Abstract translation: 公开了能够产生触针刺激信号的手枪和能够接收触笔刺激信号的触敏装置。 在一个示例中，触针可以从触敏设备的触摸传感器接收刺激信号，并通过改变所接收的刺激信号的幅度或频率来产生触针刺激信号。 触控笔可以将触针刺激信号传送回触敏装置的触摸传感器。 触摸传感器可以基于设备自身的刺激信号和触针刺激信号产生触摸信号。 触敏设备可以处理触摸信号以确定触控笔在触摸传感器上的位置。 触针可以包括力传感器以检测施加到触针尖端的力的量。 可以基于由力传感器检测到的力来调制触针刺激信号。