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    MULTIFUNCTION FINGERPRINT SENSOR HAVING OPTICAL SENSING CAPABILITY
    81.
    发明申请
    MULTIFUNCTION FINGERPRINT SENSOR HAVING OPTICAL SENSING CAPABILITY 审中-公开

    公开(公告)号：US20180173343A1

    公开(公告)日：2018-06-21

    申请号：US15846134

    申请日：2017-12-18

    Applicant: Shenzhen Goodix Technology Co., Ltd.

    Inventor： Bo Pi ,  Yi He

    IPC: G06F3/044 ,  A61B5/024 ,  A61B5/1172 ,  G06F3/041 ,  G06K9/00

    CPC classification number: G06K9/00114 ,  A61B5/0077 ,  A61B5/02416 ,  A61B5/1172 ,  A61B5/145 ,  A61B5/14532 ,  A61B5/14542 ,  A61B5/7203 ,  G06F3/041 ,  G06F3/042 ,  G06F3/0421 ,  G06K9/0004 ,  G06K9/0012

    Abstract: In one aspect, a fingerprint sensor device includes a touch panel with an integrated touch sensor module. The integrated touch sensor module includes sensing circuitry to generate a sensor signal responsive to detecting a contact input associated with a fingerprint. The sensing circuitry includes a fingerprint sensor to detect the contact input and generate a signal indicative of an image of the fingerprint, and a biometric sensor to generate a signal indicative of a biometric marker different form the fingerprint. The generated sensor signal includes the signal indicative of the image of the fingerprint and the signal indicative of the biometric marker different from the fingerprint. The sensing circuitry includes processing circuitry communicatively coupled to the sensing circuitry to process the generated sensor signal to determine whether the contact input associated with the fingerprint belongs to a live finger. In another aspect, a device includes a touch screen and an optical sensor module located below the touch screen to provide optical fingerprint sensing.

    Optical eye tracking
    85.
    发明授权
    Optical eye tracking 有权

    公开(公告)号：US11740692B2

    公开(公告)日：2023-08-29

    申请号：US14537818

    申请日：2014-11-10

    Applicant: Shenzhen Goodix Technology Co., Ltd.

    Inventor： Yi He ,  Bo Pi

    IPC: G06F3/01 ,  A61B3/113 ,  A61B3/00

    CPC classification number: G06F3/013 ,  A61B3/0041 ,  A61B3/113

    Abstract: Methods, systems, and devices are disclosed for optical sensing and tracking of eye movement. In one aspect, a method for tracking the movement of an eye includes emitting a first modulated light and a second modulated light toward an eye of a user, wherein the first modulated light and the second modulated light have substantially the same modulation frequency, but the modulation phases of the two modulated lights are substantially opposite to each other; receiving at a photodetector module a returned light including at least a partial retroreflected light from the eye of the user based on the first and second modulated lights; and processing the output signal from the photodetector module to determine positional and dimensional parameters of the eye of the user based at least on the partial retroreflected light corresponding to the first and second modulated lights.

    Passive three-dimensional image sensing based on chromatic focal differentiation
    87.
    发明授权
    Passive three-dimensional image sensing based on chromatic focal differentiation 有权

    公开(公告)号：US11582436B2

    公开(公告)日：2023-02-14

    申请号：US17369915

    申请日：2021-07-07

    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

    Inventor： Yi He ,  Bo Pi

    IPC: H04N13/15 ,  H04N13/254 ,  H04N13/128

    Abstract: Techniques are described for passive three-dimensional (3D) image sensing based on chromatic differentiation. For example, an object can be imaged by using a photodetector array to detect light reflected off of the object and focused through a lens onto the array. Light components of different wavelengths tends to be focused through the lens to different focal lengths, which can tend to impact the brightness of each wavelength as detected. For example, if the detector array is closer to a shorter-wavelength focal plane, a white spot will tend to be detected with a higher magnitude of blue light components than of red light components. Ratios of brightness magnitudes for different wavelengths vary in a manner that strongly correlates to object distance from the lens. Embodiments exploit this correlation to passively detect object distance. Some embodiments further provide various types of distance and/or chromatic calibration to further facilitate such detection.

    Hybrid refractive gradient-index optics for time-of-fly sensors
    88.
    发明授权
    Hybrid refractive gradient-index optics for time-of-fly sensors 有权

    公开(公告)号：US11543499B2

    公开(公告)日：2023-01-03

    申请号：US16721941

    申请日：2019-12-20

    Applicant: Shenzhen Goodix Technology Co., Ltd.

    Inventor： Yi He ,  Bo Pi

    IPC: G01S7/4865 ,  G02B5/08 ,  G02B3/00 ,  G01S17/00 ,  G01C3/10 ,  G01C3/24 ,  G01S17/48 ,  G02B27/30 ,  G01S17/894

    Abstract: Techniques are described for time-of-fly sensors with hybrid refractive gradient-index optics. Some embodiments are for integration into portable electronic devices with cameras, such as smart phones. For example, a time-of-fly (TOF) imaging subsystem can receive optical information along an optical path at an imaging plane. A hybrid lens can be coupled with the TOF imaging subsystem and disposed in the optical path so that the imaging plane is substantially at a focal plane of the hybrid lens. The hybrid lens can include a less-than-quarter-pitch gradient index (GRIN) lens portion, and a refractive lens portion with a convex optical interface. The portions of the hybrid lens, together, produce a combined focal length that defines the focal plane. The hybrid lens is designed so that the combined focal length is less than a quarter-pitch focal length of the GRIN lens portion and has less spherical aberration than either lens portion.

    USER MOBILE DEVICE INPUT INTERFACE WITH INTEGRATED BLOOD PRESSURE DETECTION
    89.
    发明申请
    USER MOBILE DEVICE INPUT INTERFACE WITH INTEGRATED BLOOD PRESSURE DETECTION 有权

    公开(公告)号：US20220400958A1

    公开(公告)日：2022-12-22

    申请号：US17353819

    申请日：2021-06-22

    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.

    Inventor： Yi He ,  Bo Pi

    IPC: A61B5/022 ,  A61B5/026 ,  A61B5/00

    Abstract: Techniques are described for integrating blood pressure measurement (BPM) into a portable electronic device. For example, an input interface of the device includes an integrated force sensor. Human-discernable feedback is output to the user, while using the force sensor to monitor fingertip pressure being applied by the user on the input interface, to guide the user into a first condition in which capillary fingertip blood flow (CFBF) is occluded. The human-discernable feedback is then output to the user, while continuing to use the force sensor to monitor the fingertip pressure, to guide the user into one or more subsequent conditions that allow non-occluded CFBF signals to be sensed by one or more sensors (e.g., the force sensor, an optical fingerprint sensor, etc.). The sensed non-occluded CFBF signals can be used to generate one or more CFBF-based BPM readings for the user (e.g., which can be calibrated to arterial BPM).

    OLED display having TFT integrated with photodetectors
    90.
    发明授权
    OLED display having TFT integrated with photodetectors 有权

    公开(公告)号：US11527587B2

    公开(公告)日：2022-12-13

    申请号：US16789359

    申请日：2020-02-12

    Applicant: Shenzhen Goodix Technology Co., Ltd.

    Inventor： Yi He ,  Bo Pi

    IPC: H01L27/32 ,  G06F21/32 ,  G06V40/13

    Abstract: An electronic device includes a display screen that includes a cover glass, and a display illumination layer. The display illumination layer includes an array of light-emitting elements that forms an array of pixels of the display screen. The electronic device further includes a light source disposed adjacent the cover glass and configured to emit a light beam to be coupled into the cover glass. A portion of the light beam may be transmitted through the top surface of the cover glass to illuminate a hand of a user. The electronic device further includes an optical ID sensing module that includes an array of photodetectors disposed under the array of light-emitting elements and spatially distributed across the array of pixels of the display screen, and electronic circuitry coupled to the array of photodetectors and configured to capture a fingerprint image or a palmprint image of the hand.

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