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公开(公告)号：US12281957B2
公开(公告)日：2025-04-22
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
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.
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公开(公告)号：US11231816B2
公开(公告)日：2022-01-25
申请号：US17219758
申请日：2021-03-31
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Brian Michael King
Abstract: An ultrasonic touch sensing system that uses both compressional and shear waves for touch and water detection is disclosed. When no touch or water is present, less shear and compressional wave energy is absorbed, so both shear and compressional wave reflections do not have significant amplitude decreases. When a finger is in contact with the sensing plate, both shear and compressional wave energy is absorbed, so both shear and compressional wave reflections have significant amplitude decreases. When water is in contact with the sensing plate, compressional energy is absorbed but little or no shear wave energy is absorbed, so while compressional wave reflections have significant amplitude decreases, shear wave reflections do not. From these amplitudes, a determination can be made as to whether no touch is present on the sensing plate, whether a touch is present on the sensing plate, or whether water is present on the sensing plate.
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公开(公告)号：US20210271843A1
公开(公告)日：2021-09-02
申请号：US17326202
申请日：2021-05-20
Applicant: Apple Inc.
Inventor： Mohammad Yeke Yazdandoost , Giovanni Gozzini , Brian Michael King , Marcus Yip , Marduke Yousefpor , Ehsan Khajeh , Aaron Tucker , Henry H. Yang
IPC: G06K9/00 , A61B5/1172 , A61B8/00
Abstract: An acoustic imaging system includes multiple transducers disposed to circumscribe a portion of substrate. An acoustic imaging system also includes a controller and an image resolver. The 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 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 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 substrate.
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公开(公告)号：US10198610B1
公开(公告)日：2019-02-05
申请号：US15275010
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Mohammad Yeke Yazdandoost , Brian Michael King , Marcus Yip , Ehsan Khajeh , Aaron Tucker
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.
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公开(公告)号：US12067196B2
公开(公告)日：2024-08-20
申请号：US18106226
申请日：2023-02-06
Applicant: Apple Inc.
Inventor： Marcus C. Yip , Brian M. King , Jason S. Griesbach , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Giovanni Gozzini , Mohammad Yeke Yazdandoost , Gordon S. Franza
CPC classification number: G06F3/0436 , G06F3/04166
Abstract: An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage on or more beamforming scan operations to drive the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230185407A1
公开(公告)日：2023-06-15
申请号：US18106226
申请日：2023-02-06
Applicant: Apple Inc.
Inventor： Marcus C. Yip , Brian M. King , Jason S. Griesbach , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Giovanni Gozzini , Mohammad Yeke Yazdandoost , Gordon S. Franza
CPC classification number: G06F3/0436 , G06F3/04166
Abstract: An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage on or more beamforming scan operations to drive the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
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公开(公告)号：US11347355B2
公开(公告)日：2022-05-31
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
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.
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公开(公告)号：US11157115B2
公开(公告)日：2021-10-26
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
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.
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公开(公告)号：US10802651B2
公开(公告)日：2020-10-13
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
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.
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公开(公告)号：US12287680B1
公开(公告)日：2025-04-29
申请号：US18660116
申请日：2024-05-09
Applicant: Apple Inc.
Inventor： Supratik Datta , Karan S. Jain , Ehsan Khajeh , Arash Akhavan Fomani , Daniel P Kumar , Eng Eow Goh , Meng Chi Lee , Gang Ning , Andrew W. Joyce , Chengrui Zhang , Stephen T. Schooley , Timothy C. Wulff , Ross D. Arriens , Hao Dong , Michael Sipper , Jenna Dancy , Deepak Sharma , Parin Patel
Abstract: A case for an electronic device can include a case body including an exterior surface and an interior surface, the interior surface being positioned opposite the exterior surface. The case can additionally include a button body positioned at least partially within the case body between the exterior surface and the interior surface, the button body being movable inward and outward relative to the case body along an axis of button travel. The case can further include a biasing structure having a contact surface configured to contact the button body, the biasing structure configured to bias the button body toward the interior surface along the axis of button travel.
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