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公开(公告)号：US20210405809A1
公开(公告)日：2021-12-30
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：US20210064177A1
公开(公告)日：2021-03-04
申请号：US16997899
申请日：2020-08-19
Applicant: Apple Inc.
Inventor： Ehsan KHAJEH , George Ho Yin MAK , Marcus YIP , Brian Michael KING , Aaron Scott TUCKER , Jason S. GRIESBACH , Paul X. WANG , Alex Joseph LEHMANN
Abstract: Ultrasonic force detection systems and methods can be based on propagation of ultrasonic waves in a user's body (e.g., in a user's digit). An amount of force can be determined using time-of-flight (TOF) techniques of one or more ultrasonic waves propagating in the user's body. In some examples, an electronic device including a transducer can be coupled to a digit, and can transmit ultrasonic waves into the digit. As the wave propagates through the thickness of the digit, a reflection of at least a portion of the transmitted wave can occur due to the bone and/or due to reaching the opposite side of the digit (e.g., finger pad). One or more reflections can be measured to determine the amount of force.
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公开(公告)号：US20140160880A1
公开(公告)日：2014-06-12
申请号：US13794383
申请日：2013-03-11
Applicant: APPLE INC.
Inventor： Brian Michael KING , David AMM , Scott P. PORTER , Steven P. HOTELLING
CPC classification number: H04B11/00
Abstract: Ultrasonic ranging for mobile devices is disclosed. A mobile device using ultrasonic ranging can include an ultrasound transmitter capable of emitting an ultrasound signal for detection by a proximate device and an ultrasound receiver capable of receiving an ultrasound signal from the proximate device. The mobile device can then use a time lapse associated with one or both of these ultrasound signals to find a range to the proximate device.
Abstract translation: 公开了用于移动设备的超声波测距。 使用超声波测距的移动设备可以包括能够发射用于由邻近设备检测的超声信号的超声波发射机和能够从邻近设备接收超声信号的超声波接收机。 然后，移动设备可以使用与这些超声信号中的一个或两个相关联的时间流逝来找到到邻近设备的范围。
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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.
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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
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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Patent Agency Ranking
公开(公告)号：US20170199625A1
公开(公告)日：2017-07-13
申请号：US15470690
申请日：2017-03-27
Applicant: Apple Inc.
Inventor： Steven P. HOTELLING , David AMM , Michael LAMMERS , John T. ORCHARD , Brian Michael KING , Omar S. LEUNG , Deniz TEOMAN
CPC classification number: G06F3/0418 , G06F3/044
Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.
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公开(公告)号：US20160259474A1
公开(公告)日：2016-09-08
申请号：US15050351
申请日：2016-02-22
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
CPC classification number: G06F3/0416 , G06F3/0418 , G06F3/044 , G06F2203/04101 , G06F2203/04106 , G06F2203/04108 , G06F2203/04111
Abstract: Touch and hover switching is disclosed. A touch and hover sensing device can switch between a touch mode and a hover mode. During a touch mode, the device can be switched to sense one or more objects touching the device. During a hover mode, the device can be switched to sense one or more objects hovering over the device. The device can include a panel having multiple sensors for sensing a touching object and/or a hovering object and a touch and hover control system for switching the device between the touch and hover modes. The device's touch and hover control system can include a touch sensing circuit for coupling to the sensors to measure a capacitance indicative of a touching object during the touch mode, a hover sensing circuit for coupling to the sensors to measure a capacitance indicative of a hovering object during the hover mode, and a switching mechanism for switching the sensors to couple to either the touch sensing circuit or the hover sensing circuit. The device can switch modes based on a condition of the device, such as an expiration of a timer or a relative distance of an object from the panel.
Abstract translation: 公开了触摸和悬停切换。 触摸和悬停感测装置可以在触摸模式和悬停模式之间切换。 在触摸模式期间，可以切换设备以感测触摸设备的一个或多个对象。 在悬停模式期间，可以切换设备以感测悬停在设备上的一个或多个对象。 该装置可以包括具有用于感测触摸物体和/或悬停物体的多个传感器的面板和用于在触摸和悬停模式之间切换装置的触摸和悬停控制系统。 设备的触摸和悬停控制系统可以包括用于耦合到传感器的触摸感测电路，以在触摸模式期间测量指示触摸对象的电容;悬停感测电路，用于耦合到传感器以测量指示悬停物体的电容 在悬停模式期间，以及用于切换传感器以耦合到触摸感测电路或悬停感测电路的切换机构。 设备可以根据设备的状态（例如定时器的到期或对象与面板的相对距离）切换模式。
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公开(公告)号：US20230384892A1
公开(公告)日：2023-11-30
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 , G06F2203/04106 , 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：US20220075497A1
公开(公告)日：2022-03-10
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
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：US20210404991A1
公开(公告)日：2021-12-30
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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