公开(公告)号：US20220179452A1

公开(公告)日：2022-06-09

申请号：US17682173

申请日：2022-02-28

Applicant: Apple Inc.

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

IPC: G06F1/16 ,  H04N5/232

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：US11163399B2

公开(公告)日：2021-11-02

申请号：US14737424

申请日：2015-06-11

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Martin Paul Grunthaner

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch panel configured to compensate for negative pixel effect is disclosed. The panel can be configured to increase a capacitive sense signal, indicative of a touching or hovering object, in order to compensate for an increase in negative capacitance when the object is poorly grounded. To perform the compensation, the panel can be configured to have split sense lines so as to increase the number of electric fringe fields forming the sense signal, thereby providing a sense signal that is substantially stronger than the negative capacitance signal. Each sense line can be split into two or more strips.

公开(公告)号：US10664113B2

公开(公告)日：2020-05-26

申请号：US16114023

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Vivek Pant ,  Marduke Yousefpor ,  Christoph H. Krah

IPC: G09G5/00 ,  G06F3/044 ,  G06F1/3215 ,  G06F1/3234 ,  G06F3/041

Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.

公开(公告)号：US10365773B2

公开(公告)日：2019-07-30

申请号：US15087956

申请日：2016-03-31

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Shwetabh Verma

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch controller for flexible scanning operation is disclosed. The touch controller can include circuitry configured to perform coarse detection scans, select a fine scan type based on results from the coarse detection scans, and perform a fine scan corresponding to the selected fine scan type. A fine mutual capacitance scan can be performed when conditions corresponding to a poorly grounded or ungrounded object or user are detected based on the coarse detection scans. A fine fully-bootstrapped self-capacitance scan can be performed when conditions corresponding to a well-grounded object or user are detected based on the coarse detection scans. A touch processor can be configured to sense touch events from the fine scan.

公开(公告)号：US10325136B1

公开(公告)日：2019-06-18

申请号：US15274891

申请日：2016-09-23

Applicant: Apple Inc.

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

IPC: G06K9/20 ,  G06K9/00 ,  G06F3/043 ,  G01S15/89

Abstract: An acoustic imaging system includes multiple acoustic transducers disposed to circumscribe a portion of imaging surface. An acoustic imaging system also includes a controller and an image resolver. The acoustic transducers convert electrical signals into mechanical energy and/or mechanical energy into electrical signals. The controller is adapted to apply an electrical signal to the acoustic transducers which, in response, induce a mechanical wave, such as a surface wave, into the circumscribed portion. The controller is also adapted to receive electrical signals from the acoustic transducers. The image resolver uses the electrical signals received by the controller in order to construct an image of an object in physical contact with the imaging surface.

公开(公告)号：US10126850B2

公开(公告)日：2018-11-13

申请号：US14106283

申请日：2013-12-13

Applicant: Apple Inc.

Inventor： Marduke Yousefpor

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1345

Abstract: An integrated touch sensitive display is provided. The integrated touch sensitive display can include rows and columns of touch electrodes. Various modulation techniques can be applied to one or more of the touch electrodes to allow sense circuitry to individually measure a capacitance associated with each of the touch electrodes. The capacitances can be used to determine a location and/or amount of touch or hover events at or near the integrated touch sensitive display.

公开(公告)号：US09864445B2

公开(公告)日：2018-01-09

申请号：US14627995

申请日：2015-02-20

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Steven P. Hotelling ,  Kevin J. White ,  Shih Chang Chang

IPC: G06F3/044 ,  G06F3/041 ,  G02F1/1333 ,  G06F1/16 ,  G02F1/1362 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/136286 ,  G06F1/16 ,  G06F3/041 ,  G06F3/0416 ,  G06F2203/04112 ,  G09G3/3677

Abstract: Touch screens with more compact border regions can include an active area that includes touch sensing circuitry including drive lines, and a border region around the active area. The border region can include an area of sealant deposited on conductive lines, and transistor circuitry, such as gate drivers, between the active area and the sealant. The conductive lines can extend from the sealant to the active area without electrically connecting to the transistor circuitry. The conductive lines can have equal impedances and can connect the drive lines to a touch controller off of the touch screen. A set of drive signal characteristics for the drive lines can be obtained by determining a transfer function associated with each drive line, obtaining an inverse of each transfer function, and applying a set of individual sense signal characteristics to the inverse transfer functions to obtain the corresponding set of drive signal characteristics.

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.

Inventor： Steven Porter Hotelling ,  Marduke Yousefpor ,  Shih Chang Chang ,  John Z. Zhong

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04103

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.

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.

Inventor： Steven Porter Hotelling ,  Christoph Horst Krah ,  Marduke Yousefpor ,  Thomas James Wilson

IPC: G06F3/041 ,  G06F3/044 ,  G09G5/18

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.

公开(公告)号：US09535544B2

公开(公告)日：2017-01-03

申请号：US13907698

申请日：2013-05-31

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Taif Ahmed Syed ,  Ahmad Al-Dahle ,  Kevin J. White ,  Abbas Jamshidi-Roudbari ,  Stephen S. Poon

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F2203/04107

Abstract: A touch screen to reduce touch pixel coupling. In some examples, the touch screen can include a first display pixel and a second display pixel in a row of display pixels, where the first display pixel can be configurable to be decoupled from the second display pixel during at least a touch sensing phase of the touch screen. In some examples, the touch screen can include a display pixel having a first and a second transistor, where the second transistor can be electrically connected to a gate terminal of the first transistor, and can be diode-connected. In some examples, the touch screen can include two display pixels, each display pixel having two transistors, where two of the transistors can be electrically connected to a first gate line, and the remaining two transistors can be individually electrically connected to a second and third gate line, respectively.

Abstract translation: 触摸屏可以减少触摸像素耦合。 在一些示例中，触摸屏可以包括一排显示像素中的第一显示像素和第二显示像素，其中第一显示像素可以被配置为在至少一个触摸感测阶段期间与第二显示像素解耦 触摸屏。 在一些示例中，触摸屏可以包括具有第一和第二晶体管的显示像素，其中第二晶体管可以电连接到第一晶体管的栅极端子，并且可以二极管连接。 在一些示例中，触摸屏可以包括两个显示像素，每个显示像素具有两个晶体管，其中两个晶体管可以电连接到第一栅极线，并且剩余的两个晶体管可以单独地电连接到第二和第三晶体管 门线。