公开(公告)号：US20180341359A1

公开(公告)日：2018-11-29

申请号：US15989063

申请日：2018-05-24

Applicant: Apple Inc.

Inventor： Ehsan KHAJEH ,  Brian Michael KING ,  Mohammad YEKE YAZDANDOOST ,  Marcus YIP ,  Aaron Scott TUCKER ,  Marduke YOUSEFPOR ,  Peter Jon KARDASSAKIS ,  Giovanni GOZZINI ,  Supratik DATTA ,  Asif HUSSAIN

IPC: G06F3/041 ,  G06F1/16 ,  G06F3/044 ,  G06F3/0354

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：US20180284947A1

公开(公告)日：2018-10-04

申请号：US15476244

申请日：2017-03-31

Applicant: Apple Inc.

Inventor： Ehsan KHAJEH ,  Brian Michael KING ,  Marcus YIP ,  Aaron Scott TUCKER ,  Mohammad YEKE YAZDANDOOST ,  Marduke YOUSEFPOR ,  Giovanni GOZZINI

IPC: G06F3/043 ,  G06F3/041

Abstract: The present disclosure relates to one or more intermediate layers located on a surface of a cover material of an acoustic touch screen. In some examples, the one or more layers can include one or more intermediate layers. The one or more intermediate layers can include a first layer including a plurality of features and a second layer located between the first layer and the cover material. In a touch condition, the touch object can apply a force to the top surface of the acoustic touch sensor. The applied force can create one or more local bends causing the plurality of features to move closer to the cover material and causing one or more surface discontinuities in the cover material. The acoustic waves can undergo reflections (e.g., causing the signal to be attenuated) due to the discontinuities located in the path of the wave propagation.

公开(公告)号：US20240118773A1

公开(公告)日：2024-04-11

申请号：US18462330

申请日：2023-09-06

Applicant: Apple Inc.

Inventor： Christoph H. KRAH ,  Mohammad YEKE YAZDANDOOST ,  Christopher J. BUTLER

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0425 ,  G06F3/0412

Abstract: An optical stylus system including an optical stylus and optical sensing system that are together operative to determine one or more of the target or touch location, centroid, hover distance, tilt angle, azimuth, and in some instances the orientation and rotation of the stylus is disclosed. In some examples, light illuminator and detector angular filters are employed to limit the illumination and detection angles of light to minimize false object detection. In other examples, the stylus is a passive stylus with a surface that reflects light with a consistent angular reflection profile or reflected light pattern regardless of stylus tilt. In still other examples, the stylus can detect light at different modulation frequencies emitted from an array of light emitters in the optical sensing system, or the stylus can emit light and detect reflected light with different spectral distributions across the optical sensing system to determine stylus location.

公开(公告)号：US20220276733A1

公开(公告)日：2022-09-01

申请号：US17664398

申请日：2022-05-20

Applicant: Apple Inc.

Inventor： Mohammad YEKE YAZDANDOOST ,  Giovanni GOZZINI ,  Brian Michael KING ,  Marcus YIP ,  Ehsan KHAJEH ,  Aaron Scott TUCKER

IPC: G06F3/044 ,  G06F3/043 ,  G06F1/16 ,  G06F3/0354

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：US20190147213A1

公开(公告)日：2019-05-16

申请号：US16098016

申请日：2016-05-23

Applicant: Apple Inc.

Inventor： Mohammad YEKE YAZDANDOOST ,  Giovanni GOZZINI

IPC: G06K9/00

Abstract: An electronic device may include an optical image sensor and a pin hole array mask layer above the optical image sensor. The electronic device may also include a display layer above the pin hole array mask layer that includes spaced apart display pixels, and at least one light source laterally adjacent the optical image sensor and capable of directing light into a user's finger when adjacent the optical image sensor.

公开(公告)号：US20180356915A1

公开(公告)日：2018-12-13

申请号：US15987543

申请日：2018-05-23

Applicant: Apple Inc.

Inventor： Mohammad YEKE YAZDANDOOST ,  Giovanni Gozzini

IPC: G06F3/042 ,  G06K9/00

CPC classification number: G06F3/042 ,  G06F2203/04103 ,  G06K9/0004 ,  G06K9/00087

Abstract: An electronic device may include an optical image sensor that includes optical image sensing circuitry and metallization layers above the optical image sensing circuitry. Each layer may have at least one light transmissive collimation opening therein aligned with the optical image sensing circuitry. The electronic device may also include a light source layer above the optical image sensor and a transparent cover layer above the light source layer defining a finger placement surface configured to receive a finger adjacent thereto.

公开(公告)号：US20250068285A1

公开(公告)日：2025-02-27

申请号：US18947975

申请日：2024-11-14

Applicant: Apple Inc.

Inventor： Mohammad YEKE YAZDANDOOST ,  Jason S. GRIESBACH ,  Brian M. KING ,  Paul J. GELSINGER ,  Majid GHARGHI ,  Ileana-Georgeta RAU ,  Yang DENG

IPC: G06F3/041 ,  G06F3/042 ,  H01L25/16

Abstract: An electronic device may have a touch sensitive display with optical touch sensors that are insensitive to the presence of moisture. The optical touch sensors may include light sources and light detectors. Light illuminator and detector angular filters (e.g., masks, baffles) can be employed to limit the illumination and receive angles of emitted and detected light to minimize false object detection. In some examples, light illuminator and detector masks and baffles can be formed during the photodiode component fabrication process. Interference filters may be included over the light sources and/or the light detectors to improve discrimination between a user's finger and water, and may have a greater transmission for light at a first incident angle that is greater than the critical angle of the water/cover interface than at a second incident angle that is less than the critical angle.

公开(公告)号：US20230102507A1

公开(公告)日：2023-03-30

申请号：US17448873

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Erdrin AZEMI ,  Ali MOIN ,  Christoph H. KRAH ,  Joseph Yitan CHENG ,  Kaan Emre DOGRUSOZ ,  Mohammad YEKE YAZDANDOOST

IPC: G06F3/01

Abstract: A head-mounted device having a plurality of electrodes configured to detect optical events such as the movement of one or more eyes or coarse eye gestures is disclosed. In some examples, the one or more electrodes can be coupled to dielectric elastomer materials whose shape can be changed to vary contact between a user of the head-mounted device and the one or more electrodes to ensure sufficient contact and electrode signal quality. In some examples, the one or more electrodes can be coupled to pressure sensors and control circuitry to monitor and adjust the applied pressure. In some examples, the optical events can be used as triggers for operating the device, including transitioning between operational power modes. In some examples, the triggers can invoke higher resolution sensing capabilities of the head-mounted device. In some examples, the electrodes can be used as an on-head detector to wake-up and/or unlock the device.

公开(公告)号：US20220068900A1

公开(公告)日：2022-03-03

申请号：US17398952

申请日：2021-08-10

Applicant: Apple Inc.

Inventor： Xiaofan NIU ,  Sunggu KANG ,  Mohammad YEKE YAZDANDOOST ,  Giovanni GOZZINI ,  Xia LI ,  Oray O. CELLEK ,  Sandeep CHALASANI ,  Steven E. MOLESA ,  Jaein CHOI

IPC: H01L25/16

Abstract: A micro-light-emitting diode (LED) display includes a number of micro-LED pixel elements and multiple optical sensors integrated with the micro-LED pixel elements. A transparent conductor layer is disposed over the micro-LED pixel elements and optical sensors.

公开(公告)号：US20190235656A1

公开(公告)日：2019-08-01

申请号：US16256942

申请日：2019-01-24

Applicant: Apple Inc.

Inventor： Ehsan KHAJEH ,  Aaron Scott TUCKER ,  Brian Michael KING ,  George Ho Yin MAK ,  Marcus YIP ,  Mohammad YEKE YAZDANDOOST

IPC: G06F3/043 ,  G06F3/041

Abstract: This relates to system architectures, apparatus and methods for acoustic touch detection (touch sensing) and exemplary applications of the system architectures, apparatus and methods. In some examples, the acoustic touch sensing techniques described herein can be used on a glass surface of a display or touch screen. In some examples, an acoustic touch sensing system can be configured to be insensitive to contact on the device surface by water, and thus acoustic touch sensing can be used for touch sensing in devices that are likely to become wet or fully submerged in water.