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公开(公告)号：US10198108B2
公开(公告)日：2019-02-05
申请号：US14817160
申请日：2015-08-03
Applicant: Apple Inc.
Inventor： Brian Michael King , Omar S. Leung , Paul G. Puskarich , Jeffrey Traer Bernstein , Andrea Mucignat , Avi E. Cieplinski , Muhammad U. Choudry , Praveen R. Subramani , Marc J. Piche , David Amm , Duncan Robert Kerr
Abstract: Detecting a signal from a touch and hover sensing device, in which the signal can be indicative of concurrent touch events and/or hover events, is disclosed. A touch event can indicate an object touching the device. A hover event can indicate an object hovering over the device. The touch and hover sensing device can ensure that a desired hover event is not masked by an incidental touch event, e.g., a hand holding the device, by compensating for the touch event in the detected signal that represents both events. Conversely, when both a hover event and a touch event are desired, the touch and hover sensing device can ensure that both events are detected by adjusting the device sensors and/or the detected signal. The touch and hover sensing device can also detect concurrent hover events by identifying multiple peaks in the detected signal, each peak corresponding to a position of a hovering object.
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公开(公告)号：US11861115B2
公开(公告)日：2024-01-02
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
CPC classification number: G06F3/044 , G06F1/1605 , G06F1/1656 , G06F3/03545 , G06F3/0436 , G06F2203/04105
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：US11422113B2
公开(公告)日：2022-08-23
申请号：US16917779
申请日：2020-06-30
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Brian Michael King , George Ho Yin Mak , Marcus Yip , Giovanni Gozzini
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：US11366552B2
公开(公告)日：2022-06-21
申请号：US16268886
申请日：2019-02-06
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Aaron Scott Tucker , Brian Michael King , Marcus Yip
Abstract: A polarizer disposed between a transducer and a surface in which acoustic waves propagate can be used to filter out certain types of acoustic energy. For example, the polarizer can be used with a shear-polarized transducer to pass shear waves and filter out compressional waves that may interact with water, thereby improving water rejection. In some examples, the polarizer can include one or more layers of piezoelectric material with a poling direction different than (e.g., orthogonal to) the poling direction of the transducer. Energy of compressional waves may be extracted by one or more external electric circuits. In some examples, the polarizer can be a magneto-elastic polarizer. In some examples, the polarizer can be a mechanical polarizer.
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公开(公告)号：US11334196B2
公开(公告)日：2022-05-17
申请号：US16523958
申请日：2019-07-26
Applicant: Apple Inc.
Inventor： Marcus Yip , Aaron Scott Tucker , Ehsan Khajeh , Brian Michael King
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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Patent Agency Ranking
公开(公告)号：US10735106B2
公开(公告)日：2020-08-04
申请号：US13794492
申请日：2013-03-11
Applicant: Apple Inc.
Inventor： David Amm , Brian Michael King , Steven P. Hotelling , Michael B. Wittenberg
Abstract: Mobile devices with ultrasound ranging are disclosed. A mobile device with ultrasound ranging can include a multifunctional component capable of performing multiple functions in the device, where the component can function as an ultrasound transmitter capable of transmitting an ultrasound signal to a proximate device. In some examples, the component can also function as a power button capable of powering the device up and down. In some examples, the component can also function as a home button capable of causing a home page to display on the device. The mobile device can further include an ultrasound receiver capable of receiving an ultrasound signal from the proximate device, where the device can calculate a range of the proximate device based on a time lapse associated with the received ultrasound signal.
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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
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：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
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.
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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
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.
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公开(公告)号：US10949030B2
公开(公告)日：2021-03-16
申请号：US16123757
申请日：2018-09-06
Applicant: Apple Inc.
Inventor： Ehsan Khajeh , Aaron Scott Tucker , Brian Michael King , Marcus Yip
IPC: G06F3/043 , G06F3/041 , G06F1/3234
Abstract: Acoustic transducers can be formed form piezoelectric materials including one or more curved (non-linear) segments. The piezoelectric material can be shear poled such that a poling direction of the piezoelectric material can follow the curvature of the piezoelectric material. The piezoelectric material can also have a unidirectional poling direction. In some examples, the piezoelectric material can be a closed ring with a circular or partially circular shape. A shear poling process for a piezoelectric material with curves can include shear poling segments of the piezoelectric material with one or more sets of poling electrodes. The poling electrodes of a respective one of the one or more sets of poling electrodes can be coupled to the same side of the piezoelectric material.
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