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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
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公开(公告)号：GB2455179A
公开(公告)日：2009-06-03
申请号：GB0820662
申请日：2007-06-08
Applicant: APPLE INC
Inventor： HOTELLING STEVEN P , CHEN WEI , KRAH CHRISTOPH HORST , ELIAS JOHN GREER , YAO WEI H , ZHONG JOHN Z , HODGE ANDREW BERT , LAND BRIAN RICHARDS , BOER WILLEM DEN
Abstract: Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. in some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
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公开(公告)号：AU2008100001A4
公开(公告)日：2008-02-07
申请号：AU2008100001
申请日：2008-01-02
Applicant: APPLE INC
Inventor： VU MINH-DIEU THI , WILSON THOMAS JAMES , KRAH CHRISTOPH HORST
IPC: G06F3/041
Abstract: A system and method for autonomously scanning a sensor panel device, such as a multi-touch panel, is disclosed. In one embodiment, the system and method disables a sensor panel processor after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. Accordingly, if one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, then the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. Furthermore, the sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.
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公开(公告)号：DE112007003799A5
公开(公告)日：2016-04-14
申请号：DE112007003799
申请日：2007-04-05
Applicant: APPLE INC
Inventor： HOTELLING STEVEN PORTER , HUPPI BRIAN QUENTIN , KRAH CHRISTOPH HORST
IPC: G06F3/044
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Patent Agency Ranking
公开(公告)号：AU2013204047A1
公开(公告)日：2013-05-02
申请号：AU2013204047
申请日：2013-04-11
Applicant: APPLE INC
Inventor： WILSON THOMAS JAMES , KRAH CHRISTOPH HORST , HOTELLING STEVEN PORTER
IPC: G06F1/32
Abstract: Embodiments of the invention include an IC that includes a core used for ordinary operation and a thin power circuit. The thin power circuit can be configured to use very little power. The IC can also include a digital interface and a connection thereto. The IC can initiate transition to low power mode during which the core and various I/O pads can be shut down. However, the thin power circuit can be kept powered up. The thin power circuit can monitor the digital interface for a predefined wake up signal. When the wake up signal is detected, the thin power circuit can power up the core and any powered down I/O pads. The thin power circuit can also include a dedicated power on reset (POR) cell. This POR cell can be distinct than other POR cells used for the IC and can be specifically designed to for efficient operation.
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公开(公告)号：NL2003543C
公开(公告)日：2011-01-25
申请号：NL2003543
申请日：2009-09-25
Applicant: APPLE INC
CPC classification number: G06F3/0416 , G02F1/13338 , G06F3/041 , G06F3/0412 , G06F3/0418 , G06F3/044 , G06F2203/04104
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公开(公告)号：AU2009291819A1
公开(公告)日：2010-03-18
申请号：AU2009291819
申请日：2009-09-09
Applicant: APPLE INC
Inventor： WILSON THOMAS JAMES , KRAH CHRISTOPH HORST , HOTELLING STEVEN PORTER
IPC: G06F1/32
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公开(公告)号：GB2455208A
公开(公告)日：2009-06-03
申请号：GB0822136
申请日：2007-06-08
Applicant: APPLE INC
Inventor： HOTELLING STEVEN P , CHEN WEI , KRAH CHRISTOPH HORST , ELIAS JOHN GREER , YAO WEI H , ZHONG JOHN Z , HODGE ANDREW BERT , LAND BRIAN RICHARDS , BOER WILLEM DEN
Abstract: An integrated liquid-crystal display (LCD) touch screen 100 is provided in which touch-sensing elements can be completely implemented within the LCD stack. The LCD stack comprises a first and a second polarizer; a first and a second substrate disposed between the polarizers, display control circuitry formed on the first substrate, a liquid crystal layer disposed between the substrates and at least one touch sensing element. At least one of the touch-sensing elements is disposed between the polarizers but not between the substrates. In some embodiments all of the touch sensing elements can be disposed outside the substrates. The touch sensing elements may be formed on the second substrate. The touch sensor may comprise a first layer with a plurality of drive electrodes 105a and a second layer with a plurality of sense electrodes 105b, preferably formed of indium-tin oxide (ITO) and separated by a dielectric layer. Alternative the touch-sensing elements may comprise active circuitry, such as thin film transistors (TFTs). The touch sensing element may employ a mutual capacitance or self capacitance touch-sensing arrangement. Alternative examples are also provided in which all touch sensing elements are disposed between the substrates. In some of these examples, one or more display control circuit elements can also have a touch sensing function. The substrates typically comprise a color filter plate and an array plate. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.
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公开(公告)号：GB2451973A
公开(公告)日：2009-02-18
申请号：GB0819490
申请日：2007-04-05
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER , HUPPI BRIAN QUENTIN , KRAH CHRISTOPH HORST
IPC: G06F3/044
Abstract: A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.
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