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公开(公告)号：US20220128730A1
公开(公告)日：2022-04-28
申请号：US17571985
申请日：2022-01-10
Applicant: Apple Inc.
Inventor： Michael K. McCord , Mehmet Mutlu , Ryan J. Linderman
Abstract: An optical module includes a beam-tilting light source enclosure. The enclosure is coupled to a substrate that includes a light emitter connected thereto. The enclosure has a geometry such that the enclosure has a first surface configured to couple substantially flat to the substrate and a second surface tilted with respect to the first surface and configured to couple substantially flat to a component of an electronic device through which the light is to project. The enclosure is optically transmissive and covers the light source when coupled to the substrate. In this way, the enclosure may be assembled and used in the electronic device by coupling the first surface to the substrate and coupling the second surface to the component.
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52.发明授权公开(公告)号：US11280714B2
公开(公告)日：2022-03-22
申请号：US16547466
申请日：2019-08-21
Applicant: Apple Inc.
Inventor： Omid Momtahan , Mehmet Mutlu , Miaolei Yan , Richard Yeh
Abstract: An apparatus for particulate matter (PM) measurement includes a first light source to generate a first light beam and a second light source disposed at a first distance from the first light source to generate a second light beam in parallel to the first light beam to illuminate a PM. The apparatus further includes a first light detector to measure a first timing corresponding to a first self-mixing signal resulting from a reflection and/or back-scattering of the first light beam from a PM, and a second light detector to measure a second timing corresponding to a second self-mixing signal resulting from a reflection and/or back-scattering of the second light beam from the PM. A processor can determine a first velocity of the PM based on a spatial separation between centers of the first light beam and the second light beam and a temporal separation between the first timing and the second timing.
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公开(公告)号：US11243068B1
公开(公告)日：2022-02-08
申请号：US16773827
申请日：2020-01-27
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：US20210011577A1
公开(公告)日：2021-01-14
申请号：US17025872
申请日：2020-09-18
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Tong Chen , Mark T. Winkler , Omid Momtahan
Abstract: Disclosed herein are structures, devices, and systems for detecting touch and force inputs at multiple sensing locations on a surface of an electronic device using waveguide-based interferometry. A laser light source, such as a VCSEL, inserts light into a waveguide positioned adjacent to the sensing locations, and an input at a sensing location alters the inserted light in the waveguide allowing for determination of the input's touch or force at the sensing location. Wavelength modulation of the inserted light allows isolation in frequency of the signals from each sensing location. Optical phase locking can be used to lock an absolute distance beat frequency corresponding to a stationary reference point in the waveguide.
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公开(公告)号：US20200319082A1
公开(公告)日：2020-10-08
申请号：US16833199
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Miaolei Yan , Michael K. Brown , Richard Yeh
Abstract: Various sensors, including particulate matter sensors, are described. One particulate matter sensor includes a self-mixing interferometry sensor and a set of one or more optical elements. The set of one or more optical elements is positioned to receive an optical emission of the self-mixing interferometry sensor, split the optical emission into multiple beams, and direct each beam of the multiple beams in a different direction. The self-mixing interferometry sensor is configured to generate particle speed information for particles passing through respective measurement regions of the multiple beams.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20200064249A1
公开(公告)日：2020-02-27
申请号：US16547466
申请日：2019-08-21
Applicant: Apple Inc.
Inventor： Omid MOMTAHAN , Mehmet Mutlu , Miaolei Yan , Richard Yeh
Abstract: An apparatus for particulate matter (PM) measurement includes a first light source to generate a first light beam and a second light source disposed at a first distance from the first light source to generate a second light beam in parallel to the first light beam to illuminate a PM. The apparatus further includes a first light detector to measure a first timing corresponding to a first self-mixing signal resulting from a reflection and/or back-scattering of the first light beam from a PM, and a second light detector to measure a second timing corresponding to a second self-mixing signal resulting from a reflection and/or back-scattering of the second light beam from the PM. A processor can determine a first velocity of the PM based on a spatial separation between centers of the first light beam and the second light beam and a temporal separation between the first timing and the second timing.
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公开(公告)号：US11940293B2
公开(公告)日：2024-03-26
申请号：US17465594
申请日：2021-09-02
Applicant: Apple Inc.
Inventor： Mengshu Huang , Ahmet Fatih Cihan , Adrian Z. Harb , Stephen E. Dey , Yuhao Pan , Mehmet Mutlu
IPC: G01C3/08 , G01B9/02 , G01B9/02097 , G06F3/01 , G06F3/03
CPC classification number: G01C3/08 , G01B9/02092 , G06F3/014 , G06F3/016 , G01B9/02097 , G06F3/017 , G06F3/03 , G06F2203/0331
Abstract: A system may include one or more finger devices that gather input from a user's fingers. A finger device may include one or more self-mixing interferometric proximity sensors that measure a distance to the user's finger. The proximity sensor may measure changes in distance between the proximity sensor and a flexible membrane that rests against a side portion of the user's finger. The self-mixing interferometric proximity sensor may include a laser and a photodiode. In some arrangements, a single laser driver may drive the lasers of multiple self-mixing proximity sensors using time-multiplexing. The self-mixing proximity sensor may operate according to a duty cycle. Interpolation and stitching may be used to determine the total displacement of the user's finger including both the on periods and off periods of the self-mixing proximity sensor.
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公开(公告)号：US11906303B2
公开(公告)日：2024-02-20
申请号：US17894571
申请日：2022-08-24
Applicant: Apple Inc.
Inventor： Mehmet Mutlu , Ahmet Fatih Cihan
CPC classification number: G01B9/02092 , G06F3/017 , G06F3/167 , H04R1/1091 , H04R2460/13
Abstract: Disclosed herein are wearable devices, their configurations, and methods of operation that use self-mixing interferometry signals of a self-mixing interferometry sensor to recognize user inputs. The user inputs may include voiced commands or silent gesture commands. The devices may be wearable on the user's head, with the self-mixing interferometry sensor configured to direct a beam of light toward a location on the user's head. Skin deformations or vibrations at the location may be caused by the user's speech or the user's silent gestures and recognized using the self-mixing interferometry signal. The self-mixing interferometry signals may be used for bioauthentication and/or audio conditioning of received sound or voice inputs to a microphone.
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公开(公告)号：US20230280492A1
公开(公告)日：2023-09-07
申请号：US18197882
申请日：2023-05-16
Applicant: Apple, Inc.
Inventor： Michael K. McCord , Mehmet Mutlu , Ryan J. Linderman
CPC classification number: G01V8/12 , F21V5/04 , F21V3/02 , G01S7/481 , G01S7/4813 , F21V17/101
Abstract: An optical module includes a beam-tilting light source enclosure. The enclosure is coupled to a substrate that includes a light emitter connected thereto. The enclosure has a geometry such that the enclosure has a first surface configured to couple substantially flat to the substrate and a second surface tilted with respect to the first surface and configured to couple substantially flat to a component of an electronic device through which the light is to project. The enclosure is optically transmissive and covers the light source when coupled to the substrate. In this way, the enclosure may be assembled and used in the electronic device by coupling the first surface to the substrate and coupling the second surface to the component.
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公开(公告)号：US11644800B2
公开(公告)日：2023-05-09
申请号：US17472386
申请日：2021-09-10
Applicant: Apple Inc.
Inventor： Prashanth S. Holenarsipur , Mark T. Winkler , Mehmet Mutlu , David D. Dashevsky
Abstract: An electronic watch includes a housing, a user-operable watch crown mounted to the housing, an electromagnetic radiation source emitting a beam of electromagnetic radiation toward a watch crown surface, and a sensor. The beam of electromagnetic radiation depends on a coherent mixing of electromagnetic radiation within a resonant cavity of the electromagnetic radiation source. The coherent mixing includes a mixing of a first amount of electromagnetic radiation generated by the electromagnetic radiation source and a second amount of electromagnetic radiation redirected into the resonant cavity by the watch crown surface. The sensor measures a first parameter of the beam of electromagnetic radiation and determines, using the measurement of the first parameter, a value of a second parameter characterizing movement of the watch crown. The second parameter may include a direction of rotation or speed of rotation of the watch crown, or other parameters.
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