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公开(公告)号：US20230410718A1
公开(公告)日：2023-12-21
申请号：US18184592
申请日：2023-03-15
Applicant: Apple Inc.
Inventor： Jenny Hu , Chaohao Wang , Christopher E Glazowski , Clint M Perlaki , David R Manly , Feng Wen , Graeme M Williams , Hei Kam , Hyun H Boo , Kevin J Choboter , Kyounghwan Kim , Lu Yan , Mahesh B Chappalli , Mark T Winkler , Na Zhu , Peter F Holland , Tong Chen , Warren S Rieutort-Louis , Wenrui Cai , Ximeng Guan , Yingying Tang , Yuchi Che
CPC classification number: G09G3/2096 , G06F3/042 , G09G2360/16 , G09G2320/0295 , G06F3/0412
Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. Display artifacts caused by a light emitter that operates through a display may be referred to as emitter artifacts. To mitigate emitter artifacts, operating conditions for a display frame may be used to determine an optimal firing time for the light emitter during that display frame. The operating conditions used to determine the optimal firing time may include emitter operating conditions, display content statistics, display brightness, temperature, and refresh rate. Operating conditions from one or more previous frames may be stored in a frame buffer and may be used to help determine the optimal firing time for the light emitter during a display frame. Pixel values for the display may be modified to mitigate emitter artifacts.
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公开(公告)号：US20230324690A1
公开(公告)日：2023-10-12
申请号：US18179899
申请日：2023-03-07
Applicant: Apple Inc.
Inventor： Ritu Shah , Edward S. Huo , Jason L. Slupeiks , Ryan J. Dunn , Tom Sengelaub , Tong Chen
CPC classification number: G02B27/0172 , G02B27/0093 , G02B2027/0138 , G02B2027/014
Abstract: A head-mounted device may have a head-mounted support structure. Displays may present images to eye boxes at the rear of the head-mounted support structure. Cameras and other sensors may be supported by the head-mounted support structure. Tracking cameras may be used to track the movement of a user's hands or other external objects. In dim ambient lighting conditions, a supplemental illumination system may be activated to provide supplemental illumination for the tracking cameras. A single beam of supplemental illumination may be emitted over a given coverage area or a smaller beam of supplemental illumination may be steered across the given coverage area. Light-emitting devices such as infrared light-emitting diodes and infrared lasers may be used to form infrared light sources for the supplemental illumination system.
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33.发明公开公开(公告)号：US20230314185A1
公开(公告)日：2023-10-05
申请号：US17710682
申请日：2022-03-31
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Daryl I. Vulis , Mingzhou Jin
CPC classification number: G01D5/266 , G01J9/0246 , G01N15/1434 , G06F3/0308 , G06F3/013 , G01J2009/0288 , G01N2015/1454 , G06F3/03545
Abstract: An optical sensor module includes an interferometric sensor and a set of one or more optical elements. The interferometric sensor includes a coherent light source and at least one detector configured to generate an interferometric signal. The set of one or more optical elements is configured to simultaneously direct a first portion of light emitted by the coherent light source toward a first focus area within a first depth of focus; direct a second portion of the light emitted by the coherent light source toward a second focus area within a second depth of focus; and direct portions of the emitted light that are returned from one or more objects within the first depth of focus or the second depth of focus toward the interferometric sensor.
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34.发明授权公开(公告)号：US11639998B2
公开(公告)日：2023-05-02
申请号：US16554450
申请日：2019-08-28
Applicant: Apple Inc.
Inventor： Tong Chen , Mark T. Winkler
Abstract: A optical communication system including a source device and an endpoint device. The source device include an array of laser diodes and is configured to drive the laser diodes to project a sequence of patterns into the field of view of the source device to define a set of serially-projected codes, each of which isolated to one respective angular division of the field of view of the source device. The endpoint device receives a serially-projected code from the source device which varies based which angular division of the field of view of the source device is occupied by the endpoint device.
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公开(公告)号：US11460293B2
公开(公告)日：2022-10-04
申请号：US17124132
申请日：2020-12-16
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Mingzhou Jin
IPC: G01B9/02097 , G01B11/30 , G01B9/02 , G01B11/24 , A61B5/00
Abstract: An electronic device is described. The electronic device includes a housing, a set of one or more SMI sensors attached to the housing, and a processor. The set of one or more SMI sensors includes a set of one or more electromagnetic radiation emitters having a set of one or more resonant cavities and configured to emit a set of one or more beams of electromagnetic radiation. The set of one or more SMI sensors also includes a set of one or more detectors configured to generate indications of self-mixing within the set of one or more resonant cavities. The processor is configured to characterize, using the indications of self-mixing, an optical field speckle of a target. The processor is also configured to characterize, using the characterization of the optical field speckle, a surface quality of the target.
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Patent Agency Ranking
公开(公告)号：US20220244041A1
公开(公告)日：2022-08-04
申请号：US17167218
申请日：2021-02-04
Applicant: Apple Inc.
Inventor： Nathan Shou , Daryl I. Vulis , Tong Chen
Abstract: An optical proximity sensor includes an optical path extender that extends an optical path length of the optical proximity sensor without a corresponding extension of a geometric path length of the optical proximity sensor. The optical path extender may be a high-refractive index material positioned along the optical path through the optical proximity sensor. The optical path extender may include one or more redirection features configured to change a direction of the light traveling within the optical proximity sensor. The optical path extender may include a photonic component configured to simulate an extension of the geometric path within an optical proximity sensor by applying a momentum-dependent transfer function to the light traveling through it.
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公开(公告)号：US20220155052A1
公开(公告)日：2022-05-19
申请号：US17665320
申请日：2022-02-04
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Mark T. Winkler , Tong Chen , Omid Momtahan
IPC: G01B9/02 , H01S5/14 , H01S5/06 , H01S5/026 , G01S7/4912
Abstract: A sensor system includes a self-mixing interferometry sensor; a drive circuit configured to apply a modulated drive signal to an input of the self-mixing interferometry sensor; a mixer circuit configured to mix a modulated output of the self-mixing interferometry sensor with a local oscillator signal that is orthogonal to the modulated drive signal over a period of time; an integrator circuit configured to integrate an output of the mixer circuit over the period of time; and a processor configured to determine, using an output of the integrator circuit, at least one of a round-trip propagation time of electromagnetic radiation emitted by the self-mixing interferometry sensor and reflected back into the self-mixing interferometry sensor by an object or medium, or a velocity of the object or medium.
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公开(公告)号：US20220099436A1
公开(公告)日：2022-03-31
申请号：US17124132
申请日：2020-12-16
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Mingzhou Jin
Abstract: An electronic device is described. The electronic device includes a housing, a set of one or more SMI sensors attached to the housing, and a processor. The set of one or more SMI sensors includes a set of one or more electromagnetic radiation emitters having a set of one or more resonant cavities and configured to emit a set of one or more beams of electromagnetic radiation. The set of one or more SMI sensors also includes a set of one or more detectors configured to generate indications of self-mixing within the set of one or more resonant cavities. The processor is configured to characterize, using the indications of self-mixing, an optical field speckle of a target. The processor is also configured to characterize, using the characterization of the optical field speckle, a surface quality of the target.
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公开(公告)号：US20220099431A1
公开(公告)日：2022-03-31
申请号：US17118394
申请日：2020-12-10
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Mingzhou Jin
Abstract: Methods and systems concerning non-reciprocal sensing paths for a self-mixing interferometry operation are disclosed herein. Optical components may be used to direct light transmit from a light source along an illumination path. The optical components may additionally return light to the light source after being reflected from a target and may direct the returned light along a collection path. The illumination path and the collection path may be at least partially non-reciprocal so that the transmitted light and the returned light follow along partially different paths. Once the received light is received within a cavity of the light source, a self-mixing interferometry operation may be performed and may be used to detect a property of the target in relation to the light source.
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公开(公告)号：US11157113B2
公开(公告)日：2021-10-26
申请号：US16383036
申请日：2019-04-12
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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