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    Method and device for acquiring distance information
    3.
    发明授权
    Method and device for acquiring distance information 有权

    公开(公告)号：US10509125B2

    公开(公告)日：2019-12-17

    申请号：US15209123

    申请日：2016-07-13

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yonghwa Park ,  Heesun Yoon ,  Jisan Lee

    IPC: G01C3/08 ,  G01S17/32 ,  G01S17/89

    Abstract: A method of acquiring distance information is provided. The method includes determining a projecting order of different projected lights to be sequentially projected onto an object, based on a position of the object and/or an external input, sequentially projecting the different projected lights onto the object in the determined projecting order, obtaining modulated reflected lights by modulating the reflected lights reflected by the object; and acquiring information about a distance between the device and the object based on the modulated reflected lights.

    OBJECT DETECTION DEVICE AND METHOD OF OPERATING THE SAME
    4.
    发明公开
    OBJECT DETECTION DEVICE AND METHOD OF OPERATING THE SAME 审中-公开

    公开(公告)号：US20240201385A1

    公开(公告)日：2024-06-20

    申请号：US18591472

    申请日：2024-02-29

    Applicant: SAMSUNG ELECTRONICS CO.,LTD.

    Inventor： Dongjae SHIN ,  Jisan Lee ,  Hyunil Byun ,  Changgyun Shin ,  Inoh Hwang

    IPC: G01S17/894 ,  G01S7/4865 ,  G01S17/04

    CPC classification number: G01S17/894 ,  G01S17/04 ,  G01S7/4865

    Abstract: An object detection device may include: a converter configured to convert a transmission signal radiated towards an object into a digital transmission signal and a received signal reflected from the object into a digital received signal, according to a predetermined sampling period; and at least one processor configured to: interpolate between elements of the digital transmission signal and the digital received signal that have the predetermined sampling period, to obtain an interpolated transmission signal and an interpolated received signal; remove noise from each of the interpolated transmission signal and the interpolated received signal; generate a cross-correlation signal between the interpolated transmission signal from which the noise is removed and the interpolated received signal from which the noise is removed; and acquire a three-dimensional (3D) image of the object based on at least one peak value of the cross-correlation signal.

    LiDAR device and operating method thereof
    5.
    发明授权
    LiDAR device and operating method thereof 有权

    公开(公告)号：US11994625B2

    公开(公告)日：2024-05-28

    申请号：US16782779

    申请日：2020-02-05

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jisan Lee ,  Jungwoo Kim

    IPC: G01S7/4865 ,  G01S7/48 ,  G01S7/484 ,  G01S17/26

    CPC classification number: G01S7/4866 ,  G01S7/4808 ,  G01S7/484 ,  G01S17/26

    Abstract: A light detection and ranging (LiDAR) device may include: an optical phased array configured to modulate a phase of light incident on the optical phased array and emit the light; a first photodetector configured to detect, as a reference light, the light emitted from the optical phased array in a first direction toward the first photodetector, and generate a reference signal based on the reference light; a second photodetector configured to detect, as a target light including information about an object, the light emitted from the optical phased array in a second direction toward the object, and generate a target signal based on the target light; and a processor configured to determine a distance between the LiDAR device and the object based on a cross-correlation between the reference signal and the target signal.

    Method of optimizing phase of optical phased array
    6.
    发明授权
    Method of optimizing phase of optical phased array 有权

    公开(公告)号：US11022857B2

    公开(公告)日：2021-06-01

    申请号：US16291781

    申请日：2019-03-04

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jisan Lee ,  Inoh Hwang

    IPC: G02F1/29 ,  G01S7/481

    Abstract: A method of phase optimization of an optical phased array (OPA) includes: performing a phase optimization in a beam forming process with respect to a single focal point, wherein the performing the phase optimization in the beam forming process may include: performing a first phase optimization in a first method to obtain a first beam phase profile; and performing a second phase optimization on the first beam phase profile in a second method that is different form the first method.

    Object detection device and method of operating the same
    7.
    发明授权
    Object detection device and method of operating the same 有权

    公开(公告)号：US11947016B2

    公开(公告)日：2024-04-02

    申请号：US17021546

    申请日：2020-09-15

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Dongjae Shin ,  Jisan Lee ,  Changgyun Shin ,  Inoh Hwang ,  Hyunil Byun

    IPC: G01S17/04 ,  G01S17/894 ,  G01S7/4865

    CPC classification number: G01S17/894 ,  G01S17/04 ,  G01S7/4865

    Abstract: An object detection device may include: a converter configured to convert a transmission signal radiated towards an object into a digital transmission signal and a received signal reflected from the object into a digital received signal, according to a predetermined sampling period; and at least one processor configured to: interpolate between elements of the digital transmission signal and the digital received signal that have the predetermined sampling period, to obtain an interpolated transmission signal and an interpolated received signal; remove noise from each of the interpolated transmission signal and the interpolated received signal; generate a cross-correlation signal between the interpolated transmission signal from which the noise is removed and the interpolated received signal from which the noise is removed; and acquire a three-dimensional (3D) image of the object based on at least one peak value of the cross-correlation signal.

    LiDAR device and operating method of the same
    8.
    发明授权
    LiDAR device and operating method of the same 有权

    公开(公告)号：US11815603B2

    公开(公告)日：2023-11-14

    申请号：US16852645

    申请日：2020-04-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jisan Lee

    IPC: G01S17/89 ,  G01S7/484 ,  G01S7/4865

    CPC classification number: G01S17/89 ,  G01S7/484 ,  G01S7/4865

    Abstract: A method of operating a light detection and ranging (LiDAR) device includes obtaining receiving signals corresponding to reference laser pulses generated from a reference signal; obtaining a main receiving signal having a maximum value among the receiving signals with respect to a time point; correcting a value of a sub-receiving signal included in the receiving signals at the time point based on the maximum value of the main receiving signal; and obtaining a time of flight (ToF) of a laser pulse corresponding to the sub-receiving signal based on a correlation between the corrected value of the sub-receiving signal and the reference signal.

    LIDAR DEVICE AND OPERATING METHOD OF THE SAME
    9.
    发明申请
    LIDAR DEVICE AND OPERATING METHOD OF THE SAME 有权

    公开(公告)号：US20210149053A1

    公开(公告)日：2021-05-20

    申请号：US16852645

    申请日：2020-04-20

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jisan Lee

    IPC: G01S17/89 ,  G01S7/4865 ,  G01S7/484

    Abstract: A method of operating a light detection and ranging (LiDAR) device includes obtaining receiving signals corresponding to reference laser pulses generated from a reference signal; obtaining a main receiving signal having a maximum value among the receiving signals with respect to a time point; correcting a value of a sub-receiving signal included in the receiving signals at the time point based on the maximum value of the main receiving signal; and obtaining a time of flight (ToF) of a laser pulse corresponding to the sub-receiving signal based on a correlation between the corrected value of the sub-receiving signal and the reference signal.

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