公开(公告)号：AU2015258278B2

公开(公告)日：2016-09-15

申请号：AU2015258278

申请日：2015-11-20

Applicant: APPLE INC

Inventor： SHAHPARNIA SHAHROOZ ,  WHITE KEVIN J ,  AGARWAL MANU

IPC: G06F3/041

Abstract: A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that receive at its input a combination of stylus receive channels that are combined in a manner to minimize noise while at the same time keeping the stylus signal strength uniform independent of the position of the stylus on the device.

公开(公告)号：GB2496950B

公开(公告)日：2013-10-09

申请号：GB201218672

申请日：2012-10-17

Applicant: APPLE INC

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

IPC: G06F3/041 ,  G06F3/044

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.

公开(公告)号：AU2014100236B4

公开(公告)日：2014-09-25

申请号：AU2014100236

申请日：2014-03-13

Applicant: APPLE INC

Inventor： SHAHPARNIA SHAHROOZ ,  WHITE KEVIN J ,  AGARWAL MANU

IPC: G06F3/041

Abstract: [0082] A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that receive at its input a combination of stylus receive channels that are combined in a manner to minimize noise while at the same time keeping the stylus signal strength uniform independent of the position of the stylus on the 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：AU2012101369B4

公开(公告)日：2012-12-06

申请号：AU2012101369

申请日：2012-09-05

Applicant: APPLE INC

Inventor： KRAH CHRISTOPH HORST ,  WHITE KEVIN J ,  BI YAFEI

IPC: G06F1/32

Abstract: Reducing or eliminating the effects of noise that can be generated by a power system of a touch screen device, such as a gate line voltage system that applies voltage to gate lines of the touch screen, is provided. In one example, a power supply, such as a charge pump, can be disabled during active touch sensing, such that noise from the charge pump is not generated during touch sensing. In some examples, a voltage regulator can help to maintain the gate voltage level at or above a desired threshold. In some cases, noise entering the touch sensing system can have a lasting effect on noise-sensitive components, even after the noise source is disabled. In these cases, a post-noise stabilizing system can be included to stabilize, reset, etc., noise-sensitive components of the touch sensing system, which can help to reduce or eliminate the lasting effect of noise.

公开(公告)号：AU2012216455B2

公开(公告)日：2013-11-21

申请号：AU2012216455

申请日：2012-08-27

Applicant: APPLE INC

Inventor： KRAH CHRISTOPHE HORST ,  WHITE KEVIN J ,  BI YAFEI

IPC: G06F3/00

Abstract: Reducing or eliminating the effects of noise that can be generated by a power system of a touch screen device, such as a gate line voltage system that applies voltage to gate lines of the touch screen, is provided. In one example, a power supply, such as a charge pump, can be disabled during active touch sensing, such that noise from the charge pump is not generated during touch sensing. In some examples, a voltage regulator can help to maintain the gate voltage level at or above a desired threshold. In some cases, noise entering the touch sensing system can have a lasting effect on noise-sensitive components, even after the noise source is disabled. In these cases, a post-noise stabilizing system can be included to stabilize, reset, etc., noise-sensitive components of the touch sensing system, which can help to reduce or eliminate the lasting effect of noise. c~co c~)a ~ U) ou E -CD> U) LaLz I-cDiCZ

公开(公告)号：AU2012216455A1

公开(公告)日：2013-04-11

申请号：AU2012216455

申请日：2012-08-27

Applicant: APPLE INC

Inventor： KRAH CHRISTOPHE HORST ,  WHITE KEVIN J ,  BI YAFEI

IPC: G06F3/00

Abstract: Reducing or eliminating the effects of noise that can be generated by a power system of a touch screen device, such as a gate line voltage system that applies voltage to gate lines of the touch screen, is provided. In one example, a power supply, such as a charge pump, can be disabled during active touch sensing, such that noise from the charge pump is not generated during touch sensing. In some examples, a voltage regulator can help to maintain the gate voltage level at or above a desired threshold. In some cases, noise entering the touch sensing system can have a lasting effect on noise-sensitive components, even after the noise source is disabled. In these cases, a post-noise stabilizing system can be included to stabilize, reset, etc., noise-sensitive components of the touch sensing system, which can help to reduce or eliminate the lasting effect of noise. c~co c~)a ~ U) ou E -CD> U) LaLz I-cDiCZ

公开(公告)号：AU2012101369A4

公开(公告)日：2012-10-04

申请号：AU2012101369

申请日：2012-09-05

Applicant: APPLE INC

Inventor： KRAH CHRISTOPH HORST ,  WHITE KEVIN J ,  BI YAFEI

IPC: G06F1/32

Abstract: Reducing or eliminating the effects of noise that can be generated by a power system of a touch screen device, such as a gate line voltage system that applies voltage to gate lines of the touch screen, is provided. In one example, a power supply, such as a charge pump, can be disabled during active touch sensing, such that noise from the charge pump is not generated during touch sensing. In some examples, a voltage regulator can help to maintain the gate voltage level at or above a desired threshold. In some cases, noise entering the touch sensing system can have a lasting effect on noise-sensitive components, even after the noise source is disabled. In these cases, a post-noise stabilizing system can be included to stabilize, reset, etc., noise-sensitive components of the touch sensing system, which can help to reduce or eliminate the lasting effect of noise. Computing System Peripherals 200 202 204 11/ 2283 Touch Host_ Processor Processo Touch 2123 215- Program Controller Charge Storage RAM Pump 208 210 214 Stimulation ChannelISignals Sense Channel Driver 216 Scan Channels Logic Logic tI Control Signals Touch Pixel Touch Pixel Drive Line 226 227 222 - --- 224 -V Drive Interface e 223 - Sense Line 220 Touch 234 I Screen it L (,D (I Driver Sense Sense Signals Interface

公开(公告)号：AU2014100236A4

公开(公告)日：2014-04-17

申请号：AU2014100236

申请日：2014-03-13

Applicant: APPLE INC

Inventor： SHAHPARNIA SHAHROOZ ,  WHITE KEVIN J ,  AGARWAL MANU

IPC: G06F3/041

Abstract: [0082] A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that receive at its input a combination of stylus receive channels that are combined in a manner to minimize noise while at the same time keeping the stylus signal strength uniform independent of the position of the stylus on the device. Computing 21/24 System 1800-x Peripherals 1802-_ Touch -- IHost Processor Processor Touch Controller 1850r 1812 1815 Program Error Charge Storage Compensator RAM Pump Stimulation Signals 1808 1810 S s916 Sense Channel 7 Driver91 Channels Scan Logic Logic t 1814 Touch Drive Touch Touch Control Screen Interface Pixel Pixel Signals 1820 1824 -f,, f4 Die Line \1823 1822 Sense N Sense Interface Line 1825 -f 1834 Driver Sense Signals

公开(公告)号：GB2496950A

公开(公告)日：2013-05-29

申请号：GB201218672

申请日：2012-10-17

Applicant: APPLE INC

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

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensitive display that has a first drive region (41) of connected display pixels, a second drive region (41) of connected display pixels, a sense region (42) of connected display pixels disposed between the first and second drive regions. Drive lines electrically connect together at least some of the display pixels of the first and second drive regions and electrically bypass display pixels of the sense region. The display includes a means for refreshing the display pixels during display mode of operation, means for detecting a touch event at the sense region during a touch sensing mode of operation and a means inhibiting the display pixels within the sense region from refreshing during touch sensing mode of operation. Inhibiting the display pixels is achieved applying a low voltage to gate lines (FIG 3, 35) of the display pixels.