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公开(公告)号：US11531438B2
公开(公告)日：2022-12-20
申请号：US17326249
申请日：2021-05-20
Applicant: Apple Inc.
Inventor： John Stephen Smith , Amit Nayyar , Joseph Kurth Reynolds , Sagar Rajiv Vaze , Marduke Yousefpor
Abstract: Touch sensor panels (or touch screens) can improve signal-to-noise ratio (SNR) using touch electrode patterns for differential drive and/or differential sense techniques. In some examples, a touch sensor panel can include a two-dimensional array of touch nodes formed from a plurality of touch electrodes. Each column (or row) of touch nodes can be driven with a plurality of drive signals. For example, a first column (or row) of touch nodes can be driven by a first drive signal applied to one or more first touch nodes in the first column (or row) and a second drive signal applied to a one or more second touch nodes of the first column (or row). In some examples, the first drive signal and the second drive signal can be complimentary drive signals. In some examples, each row (or column) of touch electrodes can be sensed by differential sense circuitry.
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公开(公告)号：US11281884B2
公开(公告)日：2022-03-22
申请号：US17002365
申请日：2020-08-25
Applicant: Apple Inc.
Inventor： Ting Sun , Mohammad Yeke Yazdandoost , Bosheng Zhang , Marduke Yousefpor , Kathrin Berkner Cieslicki
IPC: G06K9/00
Abstract: An apparatus for touch-sensing includes a light-emitting layer covered by a transparent layer and configured to illuminate a surface touching the transparent layer and to allow transmission of reflected light rays from the surface to underlying layers. The underlying layers include an optical coupling layer, a collimator layer and a pixelated image sensor. The optical coupling layer bends the reflected light rays to create oblique light rays. The collimator layer includes a number of apertures to collimate the received light rays. The pixelated image sensor senses the collimated oblique light rays.
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公开(公告)号：US11144158B2
公开(公告)日：2021-10-12
申请号：US15988991
申请日：2018-05-24
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：US11048902B2
公开(公告)日：2021-06-29
申请号：US15239455
申请日：2016-08-17
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：US20210081639A1
公开(公告)日：2021-03-18
申请号：US17002365
申请日：2020-08-25
Applicant: Apple Inc.
Inventor： Ting Sun , Mohammad Yeke Yazdandoost , Bosheng Zhang , Marduke Yousefpor , Kathrin Berkner Cieslicki
IPC: G06K9/00
Abstract: An apparatus for touch-sensing includes a light-emitting layer covered by a transparent layer and configured to illuminate a surface touching the transparent layer and to allow transmission of reflected light rays from the surface to underlying layers. The underlying layers include an optical coupling layer, a collimator layer and a pixelated image sensor. The optical coupling layer bends the reflected light rays to create oblique light rays. The collimator layer includes a number of apertures to collimate the received light rays. The pixelated image sensor senses the collimated oblique light rays.
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Patent Agency Ranking
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：US09939950B2
公开(公告)日：2018-04-10
申请号：US15011328
申请日：2016-01-29
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Kevin J. White
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/0418 , G06F3/044
Abstract: Operating touch screens by applying more than one voltage modes, including a first voltage mode corresponding to a display phase and a second voltage mode corresponding to a touch sensing phase, is provided. An integrated touch screen device can include a multi-mode power system that can select a first voltage mode corresponding a display phase and a second voltage mode corresponding to a touch sensing phase. Each of one or more voltages can be applied to the touch screen at the corresponding first voltage level during the updating of the image. A touch sensing system can sense touch during a touch sensing phase. Each of one or more voltages can be applied to the touch screen at the corresponding second voltage level during the sensing of touch.
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公开(公告)号：US09886141B2
公开(公告)日：2018-02-06
申请号：US14082003
申请日：2013-11-15
Applicant: Apple Inc.
Inventor： Marduke Yousefpor
CPC classification number: G06F3/044 , G06F3/0416 , G06F3/0418 , G06F2203/04111
Abstract: A touch panel capable of measuring both mutual and self capacitance is disclosed. The touch panel can measure self capacitance and mutual capacitance at various electrode patterns and, based on the self capacitance measurements, the mutual capacitance measurements, or both, calculate a touch signal indicative of an object touching or hovering over the touch panel. In some examples, the measurements can also be used to determine a correction factor, indicative of an adverse condition at the touch panel, and the correction factor used to correct the touch signal for the adverse condition. The touch panel can have a row-column electrode pattern or a pixelated electrode pattern.
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