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1. 发明授权

US11347355B2 System and method for acoustic touch and force sensing 有权
公开(公告)号：US11347355B2
公开(公告)日：2022-05-31
申请号：US15989063
申请日：2018-05-24
申请人： Apple Inc.
发明人： Ehsan Khajeh , Brian Michael King , Mohammad Yeke Yazdandoost , Marcus Yip , Aaron Scott Tucker , Marduke Yousefpor , Peter Jon Kardassakis , Giovanni Gozzini
IPC分类号： G06F3/044 , G06F3/043 , G06F1/16 , G06F3/0354
摘要： 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.

2. 发明授权

US11157115B2 Composite cover material for sensitivity improvement of ultrasonic touch screens 有权
公开(公告)号：US11157115B2
公开(公告)日：2021-10-26
申请号：US15476244
申请日：2017-03-31
申请人： Apple Inc.
发明人： Ehsan Khajeh , Brian Michael King , Marcus Yip , Aaron Scott Tucker , Mohammad Yeke Yazdandoost , Marduke Yousefpor , Giovanni Gozzini
IPC分类号： G06F3/043 , G06F3/041 , G06F3/039
摘要： 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.

3. 发明授权

US10802651B2 Ultrasonic touch detection through display 有权
公开(公告)号：US10802651B2
公开(公告)日：2020-10-13
申请号：US16256942
申请日：2019-01-24
申请人： Apple Inc.
发明人： Ehsan Khajeh , Aaron Scott Tucker , Brian Michael King , George Ho Yin Mak , Marcus Yip , Mohammad Yeke Yazdandoost
IPC分类号： G06F3/043 , G06F3/041
摘要： 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.

4. 发明授权

US09984271B1 Ultrasonic fingerprint sensor in display bezel 有权
公开(公告)号：US09984271B1
公开(公告)日：2018-05-29
申请号：US14514308
申请日：2014-10-14
申请人： Apple Inc.
发明人： Brian Michael King , Giovanni Gozzini , Henry H. Yang , Marduke Yousefpor , Matthew E. Last
IPC分类号： G06K9/00 , G06F3/043
CPC分类号： G06K9/0002 , G06F3/0436
摘要： An electronic device that includes an enclosure having an external surface and a first array of ultrasonic transducers arranged along a first direction and a second array of ultrasonic transducers arranged along a second direction. The first array of ultrasonic transducers may be configured to produce a surface wave along the external surface. A set of scattered waves may be created by the touch on the external surface. The second array of ultrasonic transducers may be configured to receive a portion of the set of scattered waves and produce an output. The device may also include a processing unit that is configured to identify the touch using the output. The processing unit may be further configured to create a reconstruction of at least a portion of a fingerprint associated with the touch on the cover, and to identify the fingerprint using the reconstruction.

5. 发明申请

US20140160893A1 MOBILE DEVICE WITH ULTRASOUND RANGING 审中-公开
标题翻译：具超声波范围的移动设备
公开(公告)号：US20140160893A1
公开(公告)日：2014-06-12
申请号：US13794492
申请日：2013-03-11
申请人： APPLE INC.
发明人： David Amm , Brian Michael King , Steven P. Hotelling
IPC分类号： H04B11/00
CPC分类号： H04B11/00 , H04M1/2155 , H04M1/7253 , H04M1/737
摘要： 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.
摘要翻译：公开了具有超声波测距的移动设备。具有超声波测距的移动设备可以包括能够在设备中执行多个功能的多功能部件，其中该部件可以用作能够将超声信号发送到邻近设备的超声发射机。在一些示例中，组件还可以用作能够上下驱动设备的电源按钮。在一些示例中，组件还可以用作能够使主页在设备上显示的主按钮。移动设备还可以包括能够从邻近设备接收超声信号的超声波接收器，其中设备可以基于与所接收的超声信号相关联的时间流逝来计算邻近设备的范围。

6. 发明授权

US11941907B2 Acoustic imaging system architecture 有权
公开(公告)号：US11941907B2
公开(公告)日：2024-03-26
申请号：US17326202
申请日：2021-05-20
申请人： Apple Inc.
发明人： Mohammad Yeke Yazdandoost , Giovanni Gozzini , Brian Michael King , Marcus Yip , Marduke Yousefpor , Ehsan Khajeh , Aaron Tucker , Henry H. Yang
IPC分类号： G06V40/13 , A61B5/1172 , A61B8/00
CPC分类号： G06V40/1306 , A61B5/1172 , A61B8/00
摘要： 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.

7. 发明授权

US11144158B2 Differential acoustic touch and force sensing 有权
公开(公告)号：US11144158B2
公开(公告)日：2021-10-12
申请号：US15988991
申请日：2018-05-24
申请人： Apple Inc.
发明人： Marduke Yousefpor , Mohammad Yeke Yazdandoost , Aaron Scott Tucker , Marcus Yip , Ehsan Khajeh , Brian Michael King , Giovanni Gozzini
IPC分类号： G06F3/041 , G06F3/043
摘要： 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.

8. 发明授权

US11048902B2 Acoustic imaging system architecture 有权
公开(公告)号：US11048902B2
公开(公告)日：2021-06-29
申请号：US15239455
申请日：2016-08-17
申请人： Apple Inc.
发明人： Mohammad Yeke Yazdandoost , Giovanni Gozzini , Brian Michael King , Marcus Yip , Marduke Yousefpor , Ehsan Khajeh , Aaron Tucker , Henry H. Yang
IPC分类号： G06K9/00 , A61B5/1172 , A61B8/00
摘要： 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.

9. 发明授权

US10877606B2 Method and apparatus for isolating ultrasonic touch sensor from reflections in a device housing 有权
公开(公告)号：US10877606B2
公开(公告)日：2020-12-29
申请号：US16390911
申请日：2019-04-22
申请人： Apple Inc.
发明人： Ehsan Khajeh , Ala'a Al-Okaily , Brian Michael King , George Ho Yin Mak , Supratik Datta
IPC分类号： G06F3/043
CPC分类号： G06F3/0436 , G06F3/043
摘要： Acoustic touch sensing system architectures and methods for acoustic touch sensing can be used to detect a position of an object touching a surface. Acoustic touch sensing can utilize transducers (e.g., piezoelectric) to simultaneously transmit ultrasonic waves along a surface and through a thickness of a material. The location of the object 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. In some examples, techniques such as isolation and absorption of acoustic energy can be used to mitigate acoustic energy reflected by portions of the electronic device and interfere with the acoustic touch sensing operation.

10. 发明授权

US10725573B2 Annular piezoelectric structure for ultrasonic touch sensing 有权
公开(公告)号：US10725573B2
公开(公告)日：2020-07-28
申请号：US16056403
申请日：2018-08-06
申请人： Apple Inc.
发明人： Anuranjini Pragada , George Ho Yin Mak , Ehsan Khajeh , Brian Michael King , Maegan K. Spencer
IPC分类号： G06F3/041 , H05K5/00 , H05K5/06 , G06F3/043
摘要： Acoustic touch sensing systems can include a mechanically integrated structure including multiple acoustic transducers. For example, an annular structure including one or more piezoelectric segments can be fabricated and then coupled to a front crystal/cover glass. A single structure can simplify the structural integration of the device, can provide a mechanically reliable and stable structure for improved structural integrity of the system, and can provide for improved water sealing for a waterproof or water resistant device. The piezoelectric material in the annular structure can be shear poled such that a poling direction of the piezoelectric material can follow the curvature of the annular piezoelectric structure.

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