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公开(公告)号:US20230409075A1
公开(公告)日:2023-12-21
申请号:US18242870
申请日:2023-09-06
Applicant: Apple Inc.
Inventor: Manohar B. Srikanth , Marduke Yousefpor , Ting Sun , Kathrin Berkner-Cieslicki , Mohammad Yeke Yazdandoost , Ricardo J. Motta
CPC classification number: G06F1/1605 , G06F1/1637 , G06F1/1626 , H04N23/63
Abstract: In one implementation, an apparatus includes a display having a front surface and a back surface. The display includes a plurality of pixel regions that emit light from the front surface to display a displayed image and a plurality of apertures that transmit light from the front surface to the back surface. The apparatus includes a camera disposed on a side of the back surface of the display. The camera is configured to capture a captured image. The apparatus includes a processor coupled to the display and the camera. The processor is configured to receive the captured image and apply a first digital filter to a first portion of the captured image and a second digital filter, different than the first digital filter, to a second portion of the captured image to reduce image distortion caused by the display.
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公开(公告)号:US20230341975A1
公开(公告)日:2023-10-26
申请号:US18175672
申请日:2023-02-28
Applicant: Apple Inc.
Inventor: Mohammad Yeke Yazdandoost , Ting Sun
IPC: G06F3/042
CPC classification number: G06F3/0421
Abstract: An electronic device may have a touch sensitive display that is insensitive to the presence of moisture. The display may have a two-dimensional optical touch sensor that gathers touch input while the electronic device is immersed in water or otherwise exposed to moisture. The optical touch sensor may include light sources and light detectors. The light sources and the light sensors may be mounted on a common substrate with an array of image pixels. The image pixels may be formed by crystalline semiconductor light-emitting diode dies. Angular filters may be included over the light sources and/or the light detectors to improve discrimination between a user's finger and water droplets. The angular filters may be on-axis light blocking angular filters or off-axis light blocking angular filters.
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公开(公告)号:US20230230414A1
公开(公告)日:2023-07-20
申请号:US18123880
申请日:2023-03-20
Applicant: Apple Inc.
Inventor: Christoph H. KRAH , Mohammad Yeke Yazdandoost
IPC: G06V40/13 , H04N25/616
CPC classification number: G06V40/1318 , H04N25/616 , H04N25/75
Abstract: A method of temperature compensation in an optical-fingerprint detection system includes acquiring a first reading associated with one or more pixels of an array. The first reading is a baseline reading. The method further includes acquiring a second reading associated with the one or more pixels of the array. The second reading includes the baseline plus a signal. Producing a temperature compensated signal reading by subtracting the first reading from the second reading. The array is an optical-fingerprint array, and each pixel of the array is coupled to a readout circuit via a pixel switch. The method includes row-based and frame-based schemes and a blind pixel scheme. Readout circuit improvements including multiplexed analog front-end (AFE), charge magnifier with column charge offset compensation and a low-noise gate driver circuit are provided.
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公开(公告)号:US11611058B2
公开(公告)日:2023-03-21
申请号:US17003732
申请日:2020-08-26
Applicant: Apple Inc.
Inventor: Yuan Chen , Chia Hsuan Tai , Mohammad Yeke Yazdandoost , Zhibing Ge
Abstract: An optical system is described. The optical system may include a sensor which may be in a mobile device. The optical system may use the same light source for imaging the display and for providing light to a sensor or sensor device. The optical system may be configured so that randomly polarized light will exit the device for viewing so that a user may view the display in any rotated orientation while wearing polarized eyewear. The optical system may further be configured to mitigate reflections in the mobile device from ambient light entering the system and from reflected and backscattered light from cross-contaminating the imaging light of the display.
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公开(公告)号:US11587353B2
公开(公告)日:2023-02-21
申请号:US17092609
申请日:2020-11-09
Applicant: APPLE INC.
Inventor: Dale R. Setlak , Giovanni Gozzini , Mohammad Yeke Yazdandoost
Abstract: An electronic device may include a display layer including light transmissive portions and non-transmissive portions. The electronic device may also include a palm biometric image sensor layer beneath the display layer and configured to sense an image of a user's palm positioned above the display layer based upon light reflected from the user's palm passing through the light transmissive portions of the display layer. The electronic device may further include a controller configured to capture image data from the user's palm in cooperation with the palm biometric image sensor layer and determine a surface distortion of the user's palm based upon the image data. The controller may also be configured to perform a biometric authentication of the user's palm based upon the image data and the surface distortion.
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公开(公告)号:US11573665B2
公开(公告)日:2023-02-07
申请号:US17709251
申请日:2022-03-30
Applicant: Apple Inc.
Inventor: Marcus C. Yip , Brian M. King , Jason S. Griesbach , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Giovanni Gozzini , Mohammad Yeke Yazdandoost , Gordon S. Franza
Abstract: An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage on or more beamforming scan operations to drive the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
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公开(公告)号:US11527582B1
公开(公告)日:2022-12-13
申请号:US17006708
申请日:2020-08-28
Applicant: Apple Inc.
Inventor: Niva A. Ran , Aleksandr N. Polyakov , Lun Tsai , Meng-Huan Ho , Mohammad Yeke Yazdandoost
Abstract: An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.
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公开(公告)号:US20220317805A1
公开(公告)日:2022-10-06
申请号:US17709251
申请日:2022-03-30
Applicant: Apple Inc.
Inventor: Marcus C. Yip , Brian M. King , Jason S. Griesbach , Ehsan Khajeh , Aaron S. Tucker , Andrew W. Joyce , Giovanni Gozzini , Mohammad Yeke Yazdandoost , Gordon S. Franza
Abstract: An acoustic imaging system coupled to an acoustic medium to define an imaging surface. The acoustic imaging system includes an array of piezoelectric acoustic transducers formed at least in part from a thin-film piezoelectric material, such as PVDF. The array is coupled to the acoustic medium opposite the imaging surface and formed using a thin-film manufacturing process over an application-specific integrated circuit that, in turn, is configured to leverage on or more beamforming scan operations to drive the array of piezoelectric actuators to generate an image of an object at least partially wetting to the imaging surface.
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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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