公开(公告)号：US09553578B2

公开(公告)日：2017-01-24

申请号：US14502899

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Hyunwoo Nho ,  Marduke Yousefpor ,  Weijun Yao ,  Yingxuan Li

IPC: G05F1/10 ,  H03K17/687 ,  G09G3/36 ,  G09G3/20 ,  H03K17/14

CPC classification number: H03K17/6872 ,  G09G3/20 ,  G09G3/3696 ,  G09G2300/08 ,  H03K17/145 ,  H03K17/687 ,  H03K2217/0054

Abstract: Systems, methods, and devices to control a transistor to maintain one or more substantially constant characteristics while activated or deactivated are provided. One such system includes a transistor that receives an activation signal on a gate terminal to become activated during a first period and receives a deactivation signal on the gate terminal to become deactivated during a second period. The transistor receives an input signal on an input terminal during the first period and the second period. The input signal varies during the first period and during the second period. The transistor may have improved reliability (e.g., substantially constant on resistance RON) because a first difference between the input signal and the activation signal substantially does not vary during the first period and a second difference between the input signal and the deactivation signal substantially does not vary during the second period.

Abstract translation: 提供了控制晶体管以在激活或去激活时维持一个或多个基本恒定特性的系统，方法和装置。 一个这样的系统包括晶体管，其在栅极端子处接收激活信号，以在第一时段期间被激活，并且在第二周期期间接收在栅极端子上的去激活信号以使其失效。 晶体管在第一周期和第二周期期间在输入端子上接收输入信号。 输入信号在第一周期和第二周期期间变化。 晶体管可能具有改进的可靠性（例如，基本上恒定的导通电阻RON），因为输入信号和激活信号之间的第一差异在第一周期内基本上不变，而输入信号和去激活信号之间的第二差基本上不是 在第二期间有所不同。

公开(公告)号：US20160275899A1

公开(公告)日：2016-09-22

申请号：US14660355

申请日：2015-03-17

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Chaohao Wang ,  Szu-Hsien Lee ,  Weijun Yao ,  Yingxuan Li ,  Wonjae Choi

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0209 ,  G09G2320/029 ,  G09G2330/06 ,  G09G2330/08

Abstract: Systems and methods are provided for adjusting and displaying image data to account for variable common voltage error across separate common electrode sub-plates. The image data may be adjusted based on a common mode common voltage error on a common voltage line coupled to more than one different common electrode sub-plate. Each common electrode sub-plate may carry a common voltage that varies depending on values of the image data programmed to pixels associated with that common electrode sub-plate.

Abstract translation: 提供了系统和方法来调整和显示图像数据，以解决跨单独的公共电极子板的可变共同电压误差。 可以基于耦合到多于一个不同公共电极子板的公共电压线上的共模公共电压误差来调整图像数据。 每个公共电极子板可以承载根据编程到与该公共电极子板相关联的像素的图像数据的值而变化的公共电压。

公开(公告)号：US20150169121A1

公开(公告)日：2015-06-18

申请号：US14256849

申请日：2014-04-18

Applicant: Apple Inc.

Inventor： Weijun Yao ,  Wei Hsin Yao ,  Yingxuan Li ,  Hopil Bae ,  Ahmad Al-Dahle

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044

Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on a separate layer dedicated to only touch hardware.

Abstract translation: 提供了集成触摸屏，包括由薄膜晶体管层的组合电路元件形成的驱动线和在滤色器层和修饰或产生光的材料层之间形成的感测线。 可以在触摸感测操作期间将TFT层中的公共电极（Vcom）组合在一起以形成驱动线。 感应线可以在专用于仅触摸硬件的单独的层上形成。

公开(公告)号：US20150109213A1

公开(公告)日：2015-04-23

申请号：US14059427

申请日：2013-10-21

Applicant: Apple Inc.

Inventor： Weijun Yao ,  Yingxuan Li ,  Ahmad Al-Dahle

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: Systems and processes for encoding and decoding touch signals output by a touch sensor are provided. In one example system, switching circuitry can be used to selectively couple each of the sense lines of a touch sensor to a positive terminal or a negative terminal of a sense amplifier based on the values of the elements of a matrix. The touch signals can be amplified and converted into digital form using a single sense amplifier and an ADC before being decoded using decoding circuitry. The decoding circuitry can decode the digital encoded touch signals by multiplying the digital encoded touch signals by each column of an inverse of the matrix used to encode the touch signals. The result of the decoding can be a set of signals that are representative of the touch signals output by the touch sensor.

Abstract translation: 提供了用于编码和解码由触摸传感器输出的触摸信号的系统和过程。 在一个示例系统中，切换电路可以用于基于矩阵的元素的值，将触摸传感器的每个感测线选择性地耦合到读出放大器的正端或负端。 在使用解码电路解码之前，可以使用单个读出放大器和ADC将触摸信号放大并转换为数字形式。 解码电路可以通过将数字编码的触摸信号乘以用于编码触摸信号的矩阵的逆的每列来对数字编码的触摸信号进行解码。 解码的结果可以是表示由触摸传感器输出的触摸信号的一组信号。

公开(公告)号：US10824279B2

公开(公告)日：2020-11-03

申请号：US14869409

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Yingxuan Li ,  Hung Sheng Lin ,  Paolo Sacchetto ,  Szu-Hsien Lee ,  Weijun Yao ,  Howard Tang

IPC: G06F3/044 ,  G06F1/16 ,  G06F3/041 ,  G09G3/36 ,  G09G3/32 ,  G06F3/047

Abstract: A system is disclosed. The system can comprise drive circuitry included in a first component of the system, the drive circuitry configured to drive a first touch electrode on a touch sensor panel. The system can also comprise a driving line configured to couple an output of the drive circuitry to the first touch electrode. The system can also comprise a feedback line configured to couple the output of the drive circuitry to an input of the drive circuitry, wherein a first end of the feedback line is coupled to the input of the drive circuitry at the first component, and a second end of the feedback line is configured to be coupled to the output of the drive circuitry at a second component, different from the first component, of the system.

公开(公告)号：US20160094219A1

公开(公告)日：2016-03-31

申请号：US14502899

申请日：2014-09-30

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Hyunwoo Nho ,  Marduke Yousefpor ,  Weijun Yao ,  Yingxuan Li

IPC: H03K17/687 ,  G09G3/36

CPC classification number: H03K17/6872 ,  G09G3/20 ,  G09G3/3696 ,  G09G2300/08 ,  H03K17/145 ,  H03K17/687 ,  H03K2217/0054

Abstract: Systems, methods, and devices to control a transistor to maintain one or more substantially constant characteristics while activated or deactivated are provided. One such system includes a transistor that receives an activation signal on a gate terminal to become activated during a first period and receives a deactivation signal on the gate terminal to become deactivated during a second period. The transistor receives an input signal on an input terminal during the first period and the second period. The input signal varies during the first period and during the second period. The transistor may have improved reliability (e.g., substantially constant on resistance RON) because a first difference between the input signal and the activation signal substantially does not vary during the first period and a second difference between the input signal and the deactivation signal substantially does not vary during the second period.

Abstract translation: 提供了控制晶体管以在激活或去激活时维持一个或多个基本恒定特性的系统，方法和装置。 一个这样的系统包括晶体管，其在栅极端子处接收激活信号，以在第一时段期间被激活，并且在第二周期期间接收在栅极端子上的去激活信号以使其失效。 晶体管在第一周期和第二周期期间在输入端子上接收输入信号。 输入信号在第一周期和第二周期期间变化。 晶体管可能具有改进的可靠性（例如，基本上恒定的导通电阻RON），因为输入信号和激活信号之间的第一差异在第一周期内基本上不变，而输入信号和去激活信号之间的第二差基本上不是 在第二期间有所不同。

公开(公告)号：US20160092015A1

公开(公告)日：2016-03-31

申请号：US14639406

申请日：2015-03-05

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Yingxuan Li ,  Marduke Yousefpor ,  Weijun Yao

IPC: G06F3/041 ,  G09G3/36 ,  G06F3/044

CPC classification number: G09G3/3648 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04105 ,  G06F2203/04106 ,  G06F2203/04107 ,  G09G2354/00

Abstract: Systems and method of performing touch and force sensing in an electronic device. The device includes a cover and an array of touch-sensor electrodes disposed below the cover. The first array of electrodes may be configured to sense a touch on the cover using a capacitive sensing scheme. The device also includes a force-sensor drive electrode disposed below the first array of electrodes and a force-sensor sense electrode disposed below the force-sensor drive electrode. The force-sensor drive and sense electrode may be configured to sense a force on the cover. The device also includes a shared drive circuit having an output that is operatively coupled to the array of touch-sensor electrodes and the force-sensor drive electrode.

Abstract translation: 在电子设备中执行触摸和力感测的系统和方法。 该装置包括盖子和设置在盖子下方的触摸传感器电极阵列。 第一电极阵列可以被配置为使用电容感测方案感测盖上的触摸。 该装置还包括设置在第一电极阵列下方的力传感器驱动电极和设置在力传感器驱动电极下方的力传感器感测电极。 力传感器驱动和感测电极可以被配置为感测盖上的力。 该装置还包括具有可操作地耦合到触摸传感器电极阵列和力传感器驱动电极的输出的共享驱动电路。

公开(公告)号：US20150332638A1

公开(公告)日：2015-11-19

申请号：US14276146

申请日：2014-05-13

Applicant: APPLE INC.

Inventor： Yingxuan Li ,  Weijun Yao ,  Wei H. Yao ,  Kingsuk Brahma ,  Hyunwoo Nho

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2300/0426 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/029

Abstract: Devices and methods for reducing or eliminating image artifacts are provided. By way of example, a display panel includes a pixels including pixel electrodes configured to receive an image data signal, and common electrodes (VCOMs) configured to receive a common voltage signal. The display panel includes a source driver, which includes a first digital to analog converter (DAC) configured to generate a gamma voltage signal to provide a first adjustment to the image data signal, and a second DAC configured to generate an error correction voltage signal to provide a second adjustment to the image data signal. The second adjustment is configured to adjust the image data signal to compensate for an operational characteristic difference between row pixels and column pixels of the display panel. The source driver includes an output buffer to supply the image data signal to the pixel electrodes.

Abstract translation: 提供了用于减少或消除图像伪像的设备和方法。 作为示例，显示面板包括被配置为接收图像数据信号的像素电极的像素和被配置为接收公共电压信号的公共电极（VCOM）。 显示面板包括源驱动器，其包括被配置为产生伽马电压信号以对图像数据信号提供第一调整的第一数模转换器（DAC）和被配置为产生纠错电压信号的第二DAC 对图像数据信号提供第二调整。 第二调整被配置为调整图像数据信号以补偿显示面板的行像素和列像素之间的操作特性差异。 源极驱动器包括用于将图像数据信号提供给像素电极的输出缓冲器。

公开(公告)号：US20150227232A1

公开(公告)日：2015-08-13

申请号：US14194363

申请日：2014-02-28

Applicant: Apple Inc.

Inventor： Weijun YAO ,  Taif A. Syed ,  Yingxuan Li ,  Ahmad Al-Dahle

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F3/047 ,  G06F2203/04101 ,  G06F2203/04112

Abstract: A self-capacitance touch sensor panel including a plurality of touch electrodes and one or more sense circuits coupled to the touch electrodes. The touch sensor panel also includes at least one offset cancellation circuit coupled to at least one of the touch electrodes and configured to generate an offset cancellation signal to cancel an offset signal at the at least one touch electrode. In some examples, the offset cancellation signal can be an offset cancellation current to cancel an offset current. In some examples, the offset cancellation circuit comprises a variable resistor, and a magnitude of the offset cancellation current is based on a resistance of the variable resistor. In some examples, each touch electrode is coupled to an offset cancellation circuit. In other examples, a single offset cancellation circuit is shared by a plurality of touch electrodes.

Abstract translation: 一种自电容式触摸传感器面板，包括多个触摸电极和耦合到触摸电极的一个或多个感测电路。 触摸传感器面板还包括耦合到至少一个触摸电极的至少一个偏移消除电路，并被配置为产生偏移消除信号以抵消在至少一个触摸电极处的偏移信号。 在一些示例中，偏移消除信号可以是消除偏移电流的偏移消除电流。 在一些示例中，偏移消除电路包括可变电阻器，并且偏移消除电流的大小基于可变电阻器的电阻。 在一些示例中，每个触摸电极耦合到偏移消除电路。 在其他示例中，单个偏移消除电路由多个触摸电极共享。

公开(公告)号：US11416086B2

公开(公告)日：2022-08-16

申请号：US16581728

申请日：2019-09-24

Applicant: Apple Inc.

Inventor： Kanke Gao ,  Wei Hsin Yao ,  Yingxuan Li ,  Weijun Yao

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

Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel are disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes can have projections which can interleave with projections of adjacent electrodes. In some configurations, projections of adjacent electrodes can be interleaved in one-dimension; in other configurations, projections of adjacent electrodes can be interleaved in two-dimensions. In some configurations, the width and length of one or more projections in an electrode can be selected based on a desired signal profile for that electrode.