公开(公告)号：US20230022492A1

公开(公告)日：2023-01-26

申请号：US17816717

申请日：2022-08-01

Applicant: Apple Inc.

Inventor： Mohammad YEKE YAZDANDOOST ,  Brian M. KING ,  Ehsan KHAJEH ,  Giovanni GOZZINI ,  Marcus C. YIP ,  Mansour KERAMAT ,  Vahid MAJIDZADEH BAFAR ,  Aaron S. TUCKER

IPC: G06F3/043 ,  G06F1/3231 ,  G06F1/16 ,  G06F1/3234 ,  G06F3/041 ,  H01Q1/00 ,  H01Q1/52 ,  H01Q7/00

Abstract: Acoustic touch detection (touch sensing) system architectures and methods can be used to detect an object touching a surface. Position of an object touching a surface can be determined using time-of-flight (TOF) bounding box techniques, or acoustic image reconstruction techniques. Acoustic touch sensing can utilize transducers, such as piezoelectric transducers, to transmit ultrasonic waves along a surface and/or through the thickness of an electronic device. Location of the object can be determined, for example, based on the amount of time elapsing between the transmission of the wave and the detection of the reflected wave. An object in contact with the surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the object can be measured to determine the touch location of the object on the surface of the device.

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：US20230195265A1

公开(公告)日：2023-06-22

申请号：US17954248

申请日：2022-09-27

Applicant: Apple Inc.

Inventor： Qiliang XU ,  Ming YU ,  Xiaonan WEN ,  Ehsan KHAJEH ,  Jason S. GRIESBACH ,  Brian M. KING

IPC: G06F3/043

CPC classification number: G06F3/043

Abstract: Input devices can employ ultrasonic touch sensing capabilities that allow user inputs to be detected through conductive materials, such as metal enclosures. The ultrasonic touch sensing can include generation of ultrasound signals with a piezoelectric layer. The ultrasound signals can be reflected when a user or other object is in contact with a housing, and the reflected signal can be detected by the same piezoelectric layer that produced the ultrasound signal. Such a piezoelectric layer can include a piezoelectric polymer, such as polyvinylidene fluoride (PVDF). An array of electrodes distributed on opposing sides of the use of electric layer can be operated to generate ultrasound signals and detect reflected signals. Such an input device can be operated in conjunction with a conductive (e.g., metallic) housing, conform to a variety of shapes, and be compact and lightweight

公开(公告)号：US20220397483A1

公开(公告)日：2022-12-15

申请号：US17664832

申请日：2022-05-24

Applicant: Apple Inc.

Inventor： Michael K. MCCORD ,  Ehsan KHAJEH ,  Brian M. KING ,  Tong CHEN ,  Yaser SHANJANI

IPC: G01M11/02

Abstract: Acoustic optical integrity detection system architectures and methods can be used to detect optical integrity of an optical component by detecting a discontinuity on and/or in the optical component (e.g., on the optical surface and/or within the bulk of the optical component). In some examples, integrity detection can be used to ensure safety compliance of an optical system, optionally including a laser. Acoustic integrity detection can utilize transducers (e.g., piezoelectric transducers) to transmit ultrasonic waves along an optical surface and/or through the thickness of an optical component. A discontinuity of the optical surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the discontinuity can be measured to determine discontinuity location, type, and/or severity.

公开(公告)号：US20180046837A1

公开(公告)日：2018-02-15

申请号：US15554746

申请日：2016-03-24

Applicant: Apple Inc.

Inventor： Giovanni GOZZINI ,  Gennadiy A. AGRANOV ,  Brian M. KING ,  Gershon ROSENBLUM ,  Mohammad YEKE YAZDANDOOST

IPC: G06K9/00 ,  G01N21/956 ,  H04W12/06 ,  G01N21/894

CPC classification number: G06K9/0004 ,  G01N21/894 ,  G01N21/956 ,  G01N2021/95676 ,  G06K9/00046 ,  H04W12/06

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 a transparent cover layer above the display layer defining a finger placement surface capable of receiving a finger adjacent thereto.