公开(公告)号：US11327488B2

公开(公告)日：2022-05-10

申请号：US15644173

申请日：2017-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jangwoo You ,  Namseop Kwon ,  Yonghwa Park ,  Jisan Lee ,  Myungjae Jeon

IPC: G05D1/00 ,  G01S17/89 ,  G01S17/04 ,  G01S17/931 ,  G01S7/481 ,  G05D1/02

Abstract: Provided are non-uniform light-emitting lidar (light detection and ranging) apparatuses and autonomous robots including the same. A lidar apparatus may include a light source configured to emit light, an optical unit arranged on an optical path of light emitted from the light source and configured to change an optical profile of the light to be non-uniform, and a 3D sensor configured to sense location of an object by receiving reflection light from the object.

公开(公告)号：US20220236734A1

公开(公告)日：2022-07-28

申请号：US17724225

申请日：2022-04-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jangwoo YOU ,  Namseop Kwon ,  Yonghwa Park ,  Jisan Lee ,  Myungjae Jeon

IPC: G05D1/00 ,  G01S17/89 ,  G01S17/04 ,  G01S17/931 ,  G01S7/481 ,  G05D1/02

Abstract: Provided are non-uniform light-emitting lidar (light detection and ranging) apparatuses and autonomous robots including the same. A lidar apparatus may include a light source configured to emit light, an optical unit arranged on an optical path of light emitted from the light source and configured to change an optical profile of the light to be non-uniform, and a 3D sensor configured to sense location of an object by receiving reflection light from the object.

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.

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.

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.

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.

公开(公告)号：US20230063732A1

公开(公告)日：2023-03-02

申请号：US17721624

申请日：2022-04-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongjae Shin ,  Hyunil Byun ,  Kyunghyun Son ,  Changgyun Shin ,  Tatsuhiro Otsuka ,  Jisan Lee

IPC: G01S7/4865 ,  G01S17/26 ,  G01S7/486

Abstract: An object detection device and an operating method thereof are provided. The object detection device detects light and outputs a received signal, which is an electrical signal, time-delays a part of the received signal with respect to a rest of the received signal, converts the rest of the received signal into a digital signal, converts the time-delayed part of the received signal into one or more time-delayed digital signals, and determines a distance to an object based on the digital signal and the one or more time-delayed digital signals.

公开(公告)号：US20210199808A1

公开(公告)日：2021-07-01

申请号：US17021546

申请日：2020-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G01S17/894 ,  G01S17/04

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.

公开(公告)号：US10430956B2

公开(公告)日：2019-10-01

申请号：US15713149

申请日：2017-09-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisan Lee ,  Yonghwa Park

IPC: G06T5/50 ,  G01S7/486 ,  G06T7/50 ,  G01S17/36 ,  G01S17/89 ,  G01S7/491 ,  G01S7/493 ,  G06T5/00 ,  G01S13/00 ,  G01S15/00 ,  G01S17/00

Abstract: An image processing method for reducing distortion of a depth image may include: obtaining a plurality of original images based on light beams which are emitted to and reflected from a subject; determining original depth values of original depth images obtained from the plurality of original images, based on phase delays of the light beams, the reflected light beams comprising multi-reflective light beams that distort the original depth values; determining imaginary intensities of the multi-reflective light beams with respective to each phase of the multi-reflective light beams, based on regions having intensities greater than a predetermined intensity in the original depth images; correcting the original depth values of the original depth images, based on the imaginary intensities of the multi-reflective light beams; and generating corrected depth images based on the corrected original depth values.

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.