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：US20150036065A1

公开(公告)日：2015-02-05

申请号：US14451076

申请日：2014-08-04

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Jean-Marie Bussat ,  Benjamin B. Lyon ,  Giovanni Gozzini ,  Steven P. Hotelling ,  Dale Setlak

IPC: G06K9/00 ,  H05K1/11 ,  G06F3/041

CPC classification number: G06K9/0002 ,  G06K9/228 ,  H04M1/0266 ,  H04M1/67

Abstract: A fingerprint sensor is incorporated in a display stack in an electronic device. A single fingerprint can be captured at one time at a single pre-defined fixed location on a display. Alternatively, a single fingerprint can be acquired at one time at any location on a display. Alternatively, multiple touches on the display can be acquired substantially simultaneously where only one fingerprint is captured at a time or where all of the fingerprints are acquired at the same time. The fingerprint sensor can be implemented as an integrated circuit connected to a bottom surface of a cover sheet, near the bottom surface of the cover sheet, or connected to a top surface of a display. Alternatively, the fingerprint sensor can be implemented as a full panel fingerprint sensor.

Abstract translation: 指纹传感器被结合在电子设备中的显示器堆叠中。 可以在显示屏上的单个预定义固定位置一次捕获单个指纹。 或者，可以在显示器上的任何位置一次获取单个指纹。 或者，可以基本上同时获取显示器上的多个触摸，其中一次只捕获一个指纹，或者同时获取所有指纹。 指纹传感器可以实现为连接到覆盖片的底表面，靠近盖片的底表面或连接到显示器的顶表面的集成电路。 或者，指纹传感器可以被实现为全面板指纹传感器。

公开(公告)号：US12099683B2

公开(公告)日：2024-09-24

申请号：US18325565

申请日：2023-05-30

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Mohammad Yeke Yazdandoost ,  Aaron Scott Tucker ,  Marcus Yip ,  Ehsan Khajeh ,  Brian Michael King ,  Giovanni Gozzini

IPC: G06F3/041 ,  G06F3/043

CPC classification number: G06F3/04166 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04105 ,  G06F2203/04106

Abstract: Acoustic touch and/or force sensing system architectures and methods for acoustic touch and/or force sensing can be used to detect a position of an object touching a surface and an amount of force applied to the surface by the object. The position and/or an applied force can be determined using time-of-flight (TOF) techniques, for example. Acoustic touch sensing can utilize transducers (e.g., piezoelectric) to simultaneously transmit ultrasonic waves along a surface and through a thickness of a deformable material. The location of the object and the applied force can be determined based on the amount of time elapsing between the transmission of the waves and receipt of the reflected waves. In some examples, an acoustic touch sensing system can be insensitive to water contact on the device surface, and thus acoustic touch sensing can be used for touch sensing in devices that may become wet or fully submerged in water.

公开(公告)号：US11789561B2

公开(公告)日：2023-10-17

申请号：US17933783

申请日：2022-09-20

Applicant: Apple Inc.

Inventor： Sagar R. Vaze ,  Marduke Yousefpor ,  Amit Nayyar

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04164 ,  G06F3/044 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0448 ,  G06F3/0412 ,  G06F3/0446 ,  G06F2203/04107 ,  G06F2203/04112

Abstract: Differential driving and/or sensing can reduce noise in a touch screen. In some examples, the touch screen can include column and row electrodes routed vertically in the active area. In some examples, the touch electrodes and/or routing traces can be implemented using metal mesh in first and second metal layers. To improve optical performance, overlapping portions of metal mesh can be designed to provide an appearance of uniform width/area. In some examples, a dielectric layer can have an increased thickness and/or a reduced dielectric constant, and/or metal mesh in the first metal layer can be flooded with a transparent conductive material. In some examples, routing traces can be disposed beneath touch electrodes and/or metal mesh for touch electrodes can be flooded with a transparent conductive material without flooding metal mesh for routing traces. In some examples, touch electrodes can be interleaved within a touch node to improve differential cancelation.

公开(公告)号：US11669199B2

公开(公告)日：2023-06-06

申请号：US17450441

申请日：2021-10-08

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Mohammad Yeke Yazdandoost ,  Aaron Scott Tucker ,  Marcus Yip ,  Ehsan Khajeh ,  Brian Michael King ,  Giovanni Gozzini

IPC: G06F3/041 ,  G06F3/043

CPC classification number: G06F3/04166 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04105 ,  G06F2203/04106

Abstract: Acoustic touch and/or force sensing system architectures and methods for acoustic touch and/or force sensing can be used to detect a position of an object touching a surface and an amount of force applied to the surface by the object. The position and/or an applied force can be determined using time-of-flight (TOF) techniques, for example. Acoustic touch sensing can utilize transducers (e.g., piezoelectric) to simultaneously transmit ultrasonic waves along a surface and through a thickness of a deformable material. The location of the object and the applied force can be determined based on the amount of time elapsing between the transmission of the waves and receipt of the reflected waves. In some examples, an acoustic touch sensing system can be insensitive to water contact on the device surface, and thus acoustic touch sensing can be used for touch sensing in devices that may become wet or fully submerged in water.

公开(公告)号：US20230168711A1

公开(公告)日：2023-06-01

申请号：US18101884

申请日：2023-01-26

Applicant: Apple Inc.

Inventor： Manohar B. Srikanth ,  Marduke Yousefpor ,  Ting Sun ,  Kathrin Berkner-Cieslicki ,  Mohammad Yeke Yazdandoost ,  Ricardo J. Motta

IPC: G06F1/16 ,  H04N23/63

CPC classification number: G06F1/1605 ,  G06F1/1626 ,  G06F1/1637 ,  H04N23/63

Abstract: In one implementation, an apparatus includes a display having a front surface and a back surface. The display includes a plurality of pixel regions that emit light from the front surface to display a displayed image and a plurality of apertures that transmit light from the front surface to the back surface. The apparatus includes a camera disposed on a side of the back surface of the display. The camera is configured to capture a captured image. The apparatus includes a processor coupled to the display and the camera. The processor is configured to receive the captured image and apply a first digital filter to a first portion of the captured image and a second digital filter, different than the first digital filter, to a second portion of the captured image to reduce image distortion caused by the display.

公开(公告)号：US11561647B2

公开(公告)日：2023-01-24

申请号：US16924047

申请日：2020-07-08

Applicant: Apple Inc.

Inventor： Yingxuan Li ,  Weijun Yao ,  Vivek Pant ,  Martin Paul Grunthaner ,  Marduke Yousefpor ,  Sumant Ranganathan

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

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.

公开(公告)号：US10558302B2

公开(公告)日：2020-02-11

申请号：US14286949

申请日：2014-05-23

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Marduke Yousefpor

IPC: G06F3/044

Abstract: Coded integration of a self-capacitance array to improve signal-to-noise ratio (SNR) of self-capacitance measurements is disclosed. A composite measurement of the self-capacitance of a plurality of electrodes can be measured for a plurality of integration periods. The composite measurements can include weighted contributions of charge from the plurality of electrodes, the weighting corresponding to a code. In some examples, the weighted contribution can include positive contributions integrated by a first integrator circuit and negative contributions integrated by a second integrator circuit. The composite measurements of the self-capacitance for the plurality of integration periods can be decoded to extract the self-capacitance measurement for the electrodes. The SNR for the self-capacitance measurements can therefore be improved by increasing the number of samples during the total integration period without requiring dedicated sensing circuitry for the electrodes.

公开(公告)号：US10282026B2

公开(公告)日：2019-05-07

申请号：US15261578

申请日：2016-09-09

Applicant: Apple Inc.

Inventor： Christoph H. Krah ,  Steven P. Hotelling ,  Marduke Yousefpor

IPC: G06F3/0488 ,  G06F3/041 ,  G06F3/044 ,  H03K17/96 ,  G02F1/1333

Abstract: Measuring an effect of body capacitance in a touch sensitive device is disclosed. This effect can be caused by poor grounding of a user or other objects touching the device or of the device itself. The device can operate in a stray capacitance mode to measure a body capacitance effect and in a normal mode to detect a touch on the device. During the stray capacitance mode, the device can obtain a body capacitance measurement from the device. During the normal mode, the device can obtain a touch measurement from the device. The device can calculate a body capacitance factor based on a ratio between the body capacitance measurement and the touch measurement and use the body capacitance factor to compensate for erroneous or distorted touch output values from the device. Various components of the device can be switchably configured according to the particular mode.