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：AU2012333046A1

公开(公告)日：2014-04-03

申请号：AU2012333046

申请日：2012-09-26

Applicant: APPLE INC

Inventor： WURZEL JOSHUA GREY ,  AL-DAHLE AHMAD ,  BI YAFEI

IPC: G06F3/044

Abstract: Disclosed embodiments relate to a display deformation detection system (14) that detects display deformations based upon changes in resistance and/or capacitance. In one embodiment, a method includes measuring a baseline comprising a baseline resistance or a baseline capacitance or both of a conductive mesh (100) disposed within or overlaid on the display panel (12). The method further includes detecting a change in the baseline resistance or the baseline capacitance or both and calculating a change location where the change in the baseline resistance or the baseline capacitance or both occurred. The method also includes calculating a magnitude of the change in the baseline resistance or the baseline capacitance or both.

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