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    TIME OF FLIGHT BASED ROTARY SPEED SENSOR WITH EARLY FAULT DETECTION
    2.
    发明申请
    TIME OF FLIGHT BASED ROTARY SPEED SENSOR WITH EARLY FAULT DETECTION 有权

    公开(公告)号：US20210190640A1

    公开(公告)日：2021-06-24

    申请号：US16719004

    申请日：2019-12-18

    Applicant: STMicroelectronics, Inc.

    Inventor： Cheng PENG ,  Xiaoyong YANG

    IPC: G01M99/00 ,  G01S17/58 ,  G01S7/4865

    Abstract: Disclosed herein is a system for detecting rotational speed and early failures of an electronic device. The system includes a rotating disk affixed to a rotating shaft of the electronic device. The rotating disk has projections extending from its periphery. A time of flight ranging system determines distance to the projections extending from the rotating disk. Processing circuitry determines a rotational speed of the rotating shaft from the determined distances to the projections extending from the rotating disk, and detects whether the electronic device is undergoing an early failure from the determined distances to the projections extending from the rotating disk. Rotational speed is determined from the time between successive peaks in the determined distances, and early failures (for example, due to wobble of the shaft) are determined where the peaks vary unexpectedly in magnitude.

    TIME-OF-FLIGHT HEAD MOVEMENT MEASUREMENT FOR WEARABLE DEVICE
    3.
    发明申请
    TIME-OF-FLIGHT HEAD MOVEMENT MEASUREMENT FOR WEARABLE DEVICE 审中-公开

    公开(公告)号：US20190212813A1

    公开(公告)日：2019-07-11

    申请号：US16101131

    申请日：2018-08-10

    Applicant: STMICROELECTRONICS, INC.

    Inventor： Xiaoyong YANG ,  Rui XIAO

    IPC: G06F3/01 ,  G02B27/01 ,  G02B27/00

    CPC classification number: G06F3/012 ,  G02B27/0093 ,  G02B27/0172 ,  G02B2027/0138 ,  G02B2027/014

    Abstract: The present disclosure is directed to a system and method of determining a movement of a user's head with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's shoulder and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's head and the user's shoulder or to determine the reflectivity of the user's shoulder. With the distance or the reflectivity, a processor can be used to determine movement of the user's head. Furthermore, a multiple zone ranging sensor or multiple ranging sensors can be used to detect the user's shoulder in different spatial zones.

    ROBOTIC DEVICE WITH TIME-OF-FLIGHT PROXIMITY SENSING SYSTEM
    4.
    发明申请
    ROBOTIC DEVICE WITH TIME-OF-FLIGHT PROXIMITY SENSING SYSTEM 有权

    公开(公告)号：US20230032490A1

    公开(公告)日：2023-02-02

    申请号：US17884492

    申请日：2022-08-09

    Applicant: STMICROELECTRONICS, INC.

    Inventor： Cheng PENG ,  Xiaoyong YANG

    IPC: B25J9/16 ,  B25J19/02

    Abstract: A robotic device including one or more proximity sensing systems coupled to various portions of a robot body. The proximity sensing systems detect a distance of an object about the robot body and the robotic device reacts based on the detected distance. The proximity sensing systems obtain a three-dimensional (3D) profile of the object to determine a category of the object. The distance of the object is detected multiple times in a sequence to determine a movement path of the object.

    ADAPTIVE LASER POWER AND RANGING LIMIT FOR TIME OF FLIGHT SENSOR
    7.
    发明申请
    ADAPTIVE LASER POWER AND RANGING LIMIT FOR TIME OF FLIGHT SENSOR 审中-公开

    公开(公告)号：US20170356981A1

    公开(公告)日：2017-12-14

    申请号：US15605611

    申请日：2017-05-25

    Applicant: STMICROELECTRONICS, INC.

    Inventor： Xiaoyong YANG ,  Rui XIAO ,  Arnaud DELEULE

    IPC: G01S7/484 ,  G01S7/486 ,  G01S17/10

    CPC classification number: G01S7/484 ,  G01S7/4868 ,  G01S17/10

    Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.

    DEPTH SENSING WITH A RANGING SENSOR AND AN IMAGE SENSOR
    9.
    发明申请
    DEPTH SENSING WITH A RANGING SENSOR AND AN IMAGE SENSOR 有权

    公开(公告)号：US20210201517A1

    公开(公告)日：2021-07-01

    申请号：US16727792

    申请日：2019-12-26

    Applicant: STMicroelectronics, Inc.

    Inventor： Xiaoyong YANG ,  Chang Myung RYU ,  James KATH ,  Rui XIAO

    IPC: G06T7/521

    Abstract: The present disclosure provides a device and method for depth sensing by utilizing the combination of a ranging sensor and an image sensor. The ranging sensor can accurately detect distance measurement from an object. The image sensor can take images with high resolution of the object. By combining each sensor data from the ranging sensor and the image sensor, accurate depth information with high resolution of the object may be obtained. A structured light having patterned shapes are used in conjunction with the ranging sensor to receive reflected patterned shapes of the object. These reflected patterned shapes are used to analyze distance measurements associated with the specific patterned shapes. These distance measurements from both the ranging sensor and the image sensor is aligned and combined to generate an accurate depth map with high resolution using a processor of an electronic device including the ranging sensor and the image sensor.

    ADAPTIVE LASER POWER AND RANGING LIMIT FOR TIME OF FLIGHT SENSOR
    10.
    发明申请
    ADAPTIVE LASER POWER AND RANGING LIMIT FOR TIME OF FLIGHT SENSOR 有权

    公开(公告)号：US20210033704A1

    公开(公告)日：2021-02-04

    申请号：US17064398

    申请日：2020-10-06

    Applicant: STMICROELECTRONICS, INC.

    Inventor： Xiaoyong YANG ,  Rui XIAO ,  Arnaud DELEULE

    IPC: G01S7/484 ,  G01S17/10 ,  G01S7/486

    Abstract: A time of flight range detection device includes a laser configured to transmit an optical pulse into an image scene, a return single-photon avalanche diode (SPAD) array, a reference SPAD array, a range detection circuit coupled to the return SPAD array and the reference SPAD array, and a laser driver circuit. The range detection circuit in operation determines a distance to an object based on signals from the return SPAD array and the reference SPAD array. The laser driver circuit in operation varies an output power level of the laser in response to the determined distance to the object.

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