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    Finger devices with proximity sensors
    3.
    发明授权
    Finger devices with proximity sensors 有权

    公开(公告)号：US11755107B1

    公开(公告)日：2023-09-12

    申请号：US17021945

    申请日：2020-09-15

    Applicant: Apple Inc.

    Inventor： Ahmet Fatih Cihan ,  Stephen E. Dey ,  Adrian Z. Harb ,  Mengshu Huang ,  Yuhao Pan ,  Paul X. Wang

    IPC: G06F3/01 ,  G06F3/033 ,  H03K17/96

    CPC classification number: G06F3/014 ,  G06F3/033 ,  H03K17/9622 ,  G06F2203/0331

    Abstract: A system may include one or more finger devices that gather input from a user's fingers. The system may include control circuitry that sends control signals to an electronic device based on the input gathered with the finger devices. A finger device may include one or more proximity sensors that measure a distance to the user's finger. The proximity sensor may be a self-mixing optical proximity sensor having a laser and photodiode. The proximity sensor may have submicron resolution and may be configured to detect very small movements of the finger as finger pad is moved around by a thumb finger, by a surface, and/or by other finger movements. 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.

    Input device with self-mixing interferometry sensors
    4.
    发明授权
    Input device with self-mixing interferometry sensors 有权

    公开(公告)号：US11614806B1

    公开(公告)日：2023-03-28

    申请号：US17319010

    申请日：2021-05-12

    Applicant: Apple Inc.

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

    IPC: G06F3/0354 ,  G06F3/04883 ,  G06F3/041 ,  G06F3/03 ,  G06F3/043 ,  G06F3/046

    Abstract: Self-mixing interferometry (SMI) sensors can be used for generation of content using an input device without requiring a touch-sensitive surface. In some examples, the SMI sensors can be used to detect characteristics of the input device including position, orientation, and/or motion of the input device and/or force applied by the input device (e.g., force applied by a stylus tip). In some examples, some or all of the characteristics of the input device can be used in processing to generate content, including textual character input and three-dimensional objects. In some examples, the generation of content can use information from one or more additional sensors for the input device and/or from additional devices in combination with the characteristics of the input device based on the SMI sensors for generation of content.

    Wearable Self-Mixing Interferometry Device Used to Sense Physiological Conditions
    6.
    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
    7.
    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.

    Finger Devices with Self-Mixing Interferometric Proximity Sensors
    9.
    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.

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