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：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：US11749775B2

公开(公告)日：2023-09-05

申请号：US17150634

申请日：2021-01-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eunkyung Lee ,  Jungwoo Kim ,  Byounglyong Choi ,  Heesun Yoon ,  Inoh Hwang

IPC: G01C3/08 ,  H01L31/173 ,  H01L31/0232 ,  G01S7/481 ,  H01S5/183 ,  H01L31/105 ,  H01S5/30 ,  H01S5/34 ,  H01S5/187

CPC classification number: H01L31/173 ,  G01S7/4811 ,  G01S7/4812 ,  H01L31/02327 ,  H01L31/105 ,  H01S5/183 ,  H01S5/187 ,  H01S5/3013 ,  H01S5/3018 ,  H01S5/3402

Abstract: A light sensing system includes a plurality of light-emitting devices arranged to have a first optical axis and a plurality of light-receiving devices arranged to have a second optical axis, the second optical axis being parallel with the first optical axis. The plurality of light-emitting devices and the plurality of light-receiving devices are formed to have a monolithically integrated structure, and the first optical axis and the second optical axis are substantially coaxial to each other, thus improving the efficiency of light reception.

公开(公告)号：US11506952B2

公开(公告)日：2022-11-22

申请号：US17218910

申请日：2021-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunil Byun ,  Inoh Hwang

IPC: G02F1/295 ,  G02B27/00 ,  G02F1/29 ,  G02F1/313 ,  H01Q3/26 ,  H01Q3/30 ,  H01S5/40

Abstract: Provided is an optical phased array including a light injector, a first splitter connected to the light injector, a first phase shifter connected to the first splitter, a plurality of waveguides connected to the first splitter, portions of the plurality of waveguides being connected to the first splitter via the first phase shifter, an antenna array connected to the plurality of waveguides, a single mode filter provided in each of the plurality of waveguides, and a first photodetector connected to the first splitter and configured to detect a portion of light radiated onto the antenna array.

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：US10802119B2

公开(公告)日：2020-10-13

申请号：US15386565

申请日：2016-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heesun Yoon ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Inoh Hwang

IPC: G01S7/48 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89

Abstract: A lidar device includes a light source configured to emit a laser pulse to an object, a light receiver configured to receive the laser pulse reflected by the object, a first periodic wave generator configured to generate a first periodic wave when the light source emits the laser pulse and generate a second periodic wave when the light source receives the laser pulse, and a first comparator configured to compare a phase of the first periodic wave and a phase of the second periodic wave to each other. The lidar device calculates a distance between the lidar device and the object based on a phase difference determined by the first comparator.

公开(公告)号：US20200256675A1

公开(公告)日：2020-08-13

申请号：US16860811

申请日：2020-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tatsuhiro OTSUKA ,  Jungwoo Kim ,  Heesun Yoon ,  Inoh Hwang

IPC: G01C15/00 ,  G01C3/08

Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.

公开(公告)号：US10670397B2

公开(公告)日：2020-06-02

申请号：US15821071

申请日：2017-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tatsuhiro Otsuka ,  Jungwoo Kim ,  Heesun Yoon ,  Inoh Hwang

IPC: G01V8/00 ,  G01C15/00 ,  G01C3/08

Abstract: Provided is a distance measuring device and a method of measuring a distance. The distance measuring device detects light reflected by an object, generates an electrical signal based on the detected light, detects whether the electrical signal is saturated or not by comparing the electrical signal with a reference value, controls a magnitude of the electrical signal based on whether the signal is saturated, and calculates a distance to the object using the electrical signal.

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.

公开(公告)号：US11867811B2

公开(公告)日：2024-01-09

申请号：US17458660

申请日：2021-08-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heesun Yoon ,  Jungwoo Kim ,  Tatsuhiro Otsuka ,  Inoh Hwang

IPC: G01S17/00 ,  G01S17/10

CPC classification number: G01S17/10

Abstract: Provided are a LiDAR device and a method of operating the LiDAR device. The LiDAR device includes a light-emitting unit configured to emit modulated light onto an object, a light-receiving unit configured to receive the modulated light reflected by the object, a computation unit configured to calculate a distance to the object based on a reception signal of the modulated light provided by the light-receiving unit, a modulation unit configured to provide a modulation signal to the light-emitting unit to generate the modulated light, and a controller configured to control operations of at least one of the light-emitting unit, the light-receiving unit, the computation unit, and the modulation unit.