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    Finger Devices with Self-Mixing Interferometric Proximity Sensors
    3.
    发明申请
    Finger Devices with Self-Mixing Interferometric Proximity Sensors 有权

    公开(公告)号：US20230073039A1

    公开(公告)日：2023-03-09

    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 ,  G06F3/01

    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.

    CAPACITIVE SENSING FOR DETERMINING MASS DISPLACEMENT AND DIRECTION
    5.
    发明申请
    CAPACITIVE SENSING FOR DETERMINING MASS DISPLACEMENT AND DIRECTION 审中-公开

    公开(公告)号：US20180018038A1

    公开(公告)日：2018-01-18

    申请号：US15209692

    申请日：2016-07-13

    Applicant: Apple Inc.

    Inventor： Mengshu Huang ,  Patrick J. Au ,  Xingxing Cai ,  Yuta Kuboyama

    IPC: G06F3/044 ,  G06F3/01

    CPC classification number: G06F3/044 ,  G06F3/016 ,  H03K17/975 ,  H03K2217/960775

    Abstract: A capacitive sensing system for determining mass displacement and direction is disclosed. In an embodiment, a capacitive sensing system for sensing mass displacement and direction comprises: a mass; a periodic drive electrode pattern formed on or attached to the mass; a sensing electrode array positioned relative to the periodic electrode pattern, the sensing electrode array operable to sense a capacitance in an overlapping area between the periodic drive electrode pattern and the sensing electrode array; and a capacitive sensing circuit coupled to at least the sensing electrode array, the capacitive sensing circuit operable to generate a periodic signal based on the sensed capacitance, to determine a phase shift in the periodic signal in response to the periodic drive electrode pattern moving relative to the sensing electrode array, and to determine, based on the phase shift, a displacement and direction of the mass on a movement axis.

    Optical Crosstalk Compensation for Optical Sensors
    6.
    发明公开
    Optical Crosstalk Compensation for Optical Sensors 审中-公开

    公开(公告)号：US20240159884A1

    公开(公告)日：2024-05-16

    申请号：US18382786

    申请日：2023-10-23

    Applicant: Apple Inc.

    Inventor： Dianbo Guo ,  Mengshu Huang

    IPC: G01S7/497 ,  G01S7/481

    CPC classification number: G01S7/497 ,  G01S7/4813

    Abstract: An optical sensor module includes a housing, an optical emitter, a photodetector, a sensor circuit, and an optical crosstalk compensation circuit. The optical emitter is configured to emit electromagnetic radiation toward and through the housing. The photodetector is configured to provide a photocurrent to an output node. The photocurrent is responsive to a receipt of first portions of the electromagnetic radiation redirected by an intended target and received through the housing, and second portions of the electromagnetic radiation redirected by an unintended target or received directly from the optical emitter. The sensor circuit is connected to the output node and configured to generate a sensor output. The optical crosstalk compensation circuit is configured to inject a bias current into the output node or the sensor circuit.

    Wearable Self-Mixing Interferometry Device Used to Sense Physiological Conditions
    8.
    发明申请
    Wearable Self-Mixing Interferometry Device Used to Sense Physiological Conditions 有权

    公开(公告)号：US20220386955A1

    公开(公告)日：2022-12-08

    申请号：US17891406

    申请日：2022-08-19

    Applicant: Apple Inc.

    Inventor： Ahmet Fatih Cihan ,  Adrian Z. Harb ,  Mehmet Mutlu ,  Mengshu Huang ,  Stephen E. Dey ,  Yuhao Pan

    IPC: A61B5/00 ,  G06F1/16 ,  A61B5/24

    Abstract: A wearable electronic device including a housing that is worn by a user and a SMI sensor contained within the housing. The SMI sensor may include an emitter that outputs coherent light toward the skin of a user when the housing is worn by the user. The SMI sensor may also include a detector that detects a portion of the coherent light reflected towards the sensor and generates electrical signals that indicate displacements of the skin based on the portion of coherent light received at the detector. The housing may include a transmitter that is operatively coupled with the SMI sensor and is configured to transmit physiological data to a receiving device based on electrical signals output from the SMI sensor.

    Wearable Self-Mixing Interferometry Device Used to Sense Physiological Conditions
    9.
    发明申请
    Wearable Self-Mixing Interferometry Device Used to Sense Physiological Conditions 有权

    公开(公告)号：US20210085245A1

    公开(公告)日：2021-03-25

    申请号：US16581695

    申请日：2019-09-24

    Applicant: Apple Inc.

    Inventor： Ahmet Fatih Cihan ,  Adrian Z. Harb ,  Mehmet Mutlu ,  Mengshu Huang ,  Stephen E. Dey ,  Yuhao Pan

    IPC: A61B5/00 ,  G06F1/16 ,  A61B5/04

    Abstract: A wearable electronic device including a housing that is worn by a user and a SMI sensor contained within the housing. The SMI sensor may include an emitter that outputs coherent light toward the skin of a user when the housing is worn by the user. The SMI sensor may also include a detector that detects a portion of the coherent light reflected towards the sensor and generates electrical signals that indicate displacements of the skin based on the portion of coherent light received at the detector. The housing may include a transmitter that is operatively coupled with the SMI sensor and is configured to transmit physiological data to a receiving device based on electrical signals output from the SMI sensor.

    Touch sensor pattern for edge input detection
    10.
    发明授权
    Touch sensor pattern for edge input detection 审中-公开

    公开(公告)号：US10671222B2

    公开(公告)日：2020-06-02

    申请号：US14870905

    申请日：2015-09-30

    Applicant: Apple Inc.

    Inventor： Yuta Kuboyama ,  Kevin F. Holz ,  Wesley W. Zuber ,  Massoud Badaye ,  Sudip Mondal ,  Chun-Hao Tung ,  Mengshu Huang ,  Der-Song Lin ,  Jinghong Chen

    IPC: G06F3/044 ,  G06F3/0488 ,  G06F1/16

    Abstract: An apparatus is disclosed. In some examples, the apparatus comprises a cover substrate having a front surface, a first edge and a first cavity adjacent to the first edge. In some examples, the apparatus comprises a plurality of touch sensor electrodes disposed opposite the front surface of the cover substrate. In some examples, the apparatus comprises at least one touch sensor edge electrode disposed within the first cavity on a surface that is angled relative to the front surface of the cover substrate. In some examples, at least one touch sensor edge electrode is disposed on an outward facing curved surface of the first cavity. In some examples, the plurality of touch sensor electrodes are formed from a first conductive material and the at least one touch sensor edge electrode is formed from a second conductive material. In some examples, the first conductive material is transparent, and the second conductive material is non-transparent. In some examples, the second conductive material is formed on a black mask layer disposed around a perimeter of a bottom surface of the cover substrate.

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