Touch detection using multiple simultaneous stimulation signals

    公开(公告)号:US11106308B2

    公开(公告)日:2021-08-31

    申请号:US16989771

    申请日:2020-08-10

    Applicant: Apple Inc.

    Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.

    Integrated touch screen
    2.
    发明授权

    公开(公告)号:US09760200B2

    公开(公告)日:2017-09-12

    申请号:US14835515

    申请日:2015-08-25

    Applicant: Apple Inc.

    Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. 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 one or more touches on or near the display. The multi-function circuit elements can be, for example, 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.

    Single chip multi-stimulus sensor controller

    公开(公告)号:US09715306B2

    公开(公告)日:2017-07-25

    申请号:US15270950

    申请日:2016-09-20

    Applicant: Apple Inc.

    CPC classification number: G06F3/0416 G06F3/044 G06F2203/04104 G09G5/18

    Abstract: A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.

    REMOTE CONTROL SYSTEMS THAT CAN DISTINGUISH STRAY LIGHT SOURCES
    4.
    发明申请
    REMOTE CONTROL SYSTEMS THAT CAN DISTINGUISH STRAY LIGHT SOURCES 审中-公开
    远程控制系统,可以辨别光源

    公开(公告)号:US20160216153A1

    公开(公告)日:2016-07-28

    申请号:US15091223

    申请日:2016-04-05

    Applicant: Apple Inc.

    Abstract: Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can output waveforms modulated in accordance with one or more signature modulation characteristics. The predetermined light sources also can output light at different signature wavelengths.

    Abstract translation: 提供了可以将预定光源与杂散光源(例如环境光源和/或反射)区分开的遥控系统。 预定的光源可以以非对称的基本线性或二维图案设置。 预定光源还可以输出根据一个或多个签名调制特性调制的波形。 预定光源还可以输出不同签名波长的光。

    Dual configuration for display data lines
    8.
    发明授权
    Dual configuration for display data lines 有权
    显示数据线的双重配置

    公开(公告)号:US09086774B2

    公开(公告)日:2015-07-21

    申请号:US14312489

    申请日:2014-06-23

    Applicant: Apple Inc.

    Abstract: A display having data lines that can be configured between a display mode and a touch mode is disclosed. The display can have sense regions for sensing a touch or near touch on the display during the touch mode. These same regions can display graphics or data on the display during the display mode. During display mode, the data lines in the sense regions can be configured to couple to display circuitry in order to receive data signals from the circuitry for displaying. During touch mode, the data lines in the sense regions can be configured to couple to corresponding sense lines in the regions, which in turn can couple to touch circuitry, in order to transmit touch signals to the circuitry for sensing a touch or near touch. Alternatively, during touch mode, the data lines in the sense regions can be configured to couple to ground in order to transmit residual data signals to ground for discarding.

    Abstract translation: 公开了一种具有能够在显示模式和触摸模式之间配置的数据线的显示器。 显示器可以具有用于在触摸模式期间感测显示器上的触摸或接近触摸的感测区域。 这些相同的区域可以在显示模式期间在显示器上显示图形或数据。 在显示模式期间,感测区域中的数据线可被配置为耦合到显示电路,以便从用于显示的电路接收数据信号。 在触摸模式期间,感测区域中的数据线可以被配置为耦合到区域中的对应感测线,该区域又可以耦合到触摸电路,以便将触摸信号发送到用于感测触摸或接近触摸的电路。 或者,在触摸模式期间,感测区域中的数据线可以被配置为耦合到地,以便将剩余数据信号发送到地面以进行丢弃。

    Integrated touch screen
    10.
    发明授权
    Integrated touch screen 有权
    集成触摸屏

    公开(公告)号:US09134560B2

    公开(公告)日:2015-09-15

    申请号:US13943669

    申请日:2013-07-16

    Applicant: Apple Inc.

    Abstract: Displays with touch sensing circuitry integrated into the display pixel stackup are provided. 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 one or more touches on or near the display. The multi-function circuit elements can be, for example, 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.

    Abstract translation: 提供集成在显示像素堆叠中的触摸感应电路的显示。 集成触摸屏可以包括多功能电路元件,其可以作为显示系统的电路操作以在显示器上生成图像,并且还可以形成感测显示器上或附近的一个或多个触摸的触摸感测系统的一部分。 多功能电路元件可以是例如可以被配置为作为显示系统中的显示电路的存储电容器/电极,公共电极,导线/路径等的显示像素中的电容器,并且, 也可以被配置为作为触摸感测电路的电路元件工作。

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