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公开(公告)号：US10606418B2
公开(公告)日：2020-03-31
申请号：US15923967
申请日：2018-03-16
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Aaron Scott Tucker , Brian Michael King , Ehsan Khajeh , Marcus Yip , Mohammad Yeke Yazdandoost , Wesley W. Zuber
IPC: G06F3/043 , G06F3/0354 , G06F3/044
Abstract: An input device outfitted with one or more ultrasonic transducers can determine the location of one or more objects in contact with the input device. For example, the input device can include one or more transducers disposed in a ring around the circumference of the input device or in an array of rings along the length of the input device. The ultrasonic transducers can be used to detect the position of the one or more touching objects in at least one dimension, for example. In some examples, the one or more ultrasonic transducers can produce directional ultrasonic waves.
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公开(公告)号：US10275633B1
公开(公告)日：2019-04-30
申请号：US15275106
申请日：2016-09-23
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Mohammad Yeke Yazdandoost , Brian Michael King
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：US20180284946A1
公开(公告)日：2018-10-04
申请号：US15923967
申请日：2018-03-16
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Aaron Scott Tucker , Brian Michael King , Ehsan Khajeh , Marcus Yip , Mohammad Yeke Yazdandoost , Wesley W. Zuber
IPC: G06F3/043 , G06F3/0354
Abstract: An input device outfitted with one or more ultrasonic transducers can determine the location of one or more objects in contact with the input device. For example, the input device can include one or more transducers disposed in a ring around the circumference of the input device or in an array of rings along the length of the input device. The ultrasonic transducers can be used to detect the position of the one or more touching objects in at least one dimension, for example. In some examples, the one or more ultrasonic transducers can produce directional ultrasonic waves.
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公开(公告)号：US09836158B2
公开(公告)日：2017-12-05
申请号：US14631564
申请日：2015-02-25
Applicant: Apple Inc.
Inventor： Brian Michael King , Omar S. Leung , Paul G. Puskarich , Jeffrey Traer Bernstein , Andrea Mucignat , Avi E. Cieplinski , Muhammad Umar 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: Compensation for sensors in a touch and hover sensing device is disclosed. Compensation can be for sensor resistance and/or sensor sensitivity variation that can adversely affect touch and hover measurements at the sensors. To compensate for sensor resistance, the device can gang adjacent sensors together so as to reduce the overall resistance of the sensors. In addition or alternatively, the device can drive the sensors with voltages from multiple directions so as to reduce the effects of the sensors' resistance. To compensate for sensor sensitivity variation (generally at issue for hover measurements), the device can apply a gain factor to the measurements, where the gain factor is a function of the sensor location, so as to reduce the sensitivity variation at different sensor locations on the device.
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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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Patent Agency Ranking
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：US10359884B2
公开(公告)日：2019-07-23
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
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：US10289235B2
公开(公告)日：2019-05-14
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
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.
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公开(公告)号：US10268303B2
公开(公告)日：2019-04-23
申请号：US15083102
申请日：2016-03-28
Applicant: Apple Inc.
Inventor： Jeffrey Traer Bernstein , David T. Amm , Omar S. Leung , Christopher Tenzin Mullens , Brian Michael King , Brian Richards Land , Reese T. Cutler
IPC: G06F3/041 , G06F3/044 , G06F3/0486 , G06F3/0481 , G06F3/0484
Abstract: Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor array and enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch sensing, hover sensing, both touch and hover sensing, or neither.
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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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