公开(公告)号：US20240192350A1

公开(公告)日：2024-06-13

申请号：US18329814

申请日：2023-06-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Tae KHANG ,  Jinyong JEON ,  Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S13/46 ,  G01S7/03 ,  G01S7/295 ,  G01S7/40

CPC classification number: G01S13/46 ,  G01S7/032 ,  G01S7/295 ,  G01S7/4008 ,  G01C9/00 ,  G01S2013/468

Abstract: A processor implement method may include determining a target azimuth angle of the target object based on an initial radar signal received through an array antenna of a radar sensor, generating a correction radar signal by correcting a phase of the initial radar signal based on the target azimuth angle, and determining an elevation angle of the target object based on the correction radar signal.

公开(公告)号：US20240142575A1

公开(公告)日：2024-05-02

申请号：US18297767

申请日：2023-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Seung Tae KHANG ,  Jinyong JEON ,  Young Rae CHO

IPC: G01S7/41 ,  G01S7/35 ,  G01S13/58 ,  G01S13/72 ,  G01S13/89

CPC classification number: G01S7/417 ,  G01S7/356 ,  G01S7/412 ,  G01S13/584 ,  G01S13/723 ,  G01S13/89

Abstract: A method including clustering second point clouds comprised in second point cloud data of a second timepoint, obtaining output data corresponding to one or more second clusters generated as a result of the clustering by applying the second point clouds to a pretrained neural network, determining whether at least one of the one or more second clusters is a target object based on a reliability factor, tracking first clusters corresponding to the target object in first point cloud data of one or more first timepoints prior to the second timepoint, and training of the pretrained neural network based on the output data corresponding to the first clusters and the first point clouds for each first cluster determined according to a result of the tracking.

公开(公告)号：US20240094338A1

公开(公告)日：2024-03-21

申请号：US18112723

申请日：2023-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo CHOI ,  Seung Tae KHANG

IPC: G01S7/35 ,  G01S7/03 ,  G01S13/42 ,  G01S13/931

CPC classification number: G01S7/354 ,  G01S7/03 ,  G01S13/42 ,  G01S13/931

Abstract: A method includes extracting a first chirp sequence signal and a second chirp sequence signal from a radar signal, determining a first phase difference of the first chirp sequence signal based on a distance between antenna elements of the array antenna, determining a second phase difference of the second chirp sequence signal based on the distance between the antenna elements of the array antenna, determining a first direction of arrival (DOA) frequency based on a first carrier frequency based on the first phase difference, determining a second DOA frequency based on a second carrier frequency based on the second phase difference, estimating a preliminary DOA of a target based on a frequency difference between the first DOA frequency and the second DOA frequency, determining ambiguous DOA candidates, and selecting a final DOA of the target from the ambiguous DOA candidates based on the preliminary DOA.

公开(公告)号：US20230401823A1

公开(公告)日：2023-12-14

申请号：US18456713

申请日：2023-08-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungju HAN ,  Byung Kwan KIM ,  Jong-Sok KIM ,  Sungdo CHOI

IPC: G06V10/764 ,  G01S7/02 ,  G01S7/41 ,  G01S13/04 ,  G01S13/86 ,  G06V40/16 ,  G06V10/82 ,  G06V40/40

CPC classification number: G06V10/764 ,  G01S7/024 ,  G01S7/412 ,  G01S13/04 ,  G01S13/867 ,  G06V40/166 ,  G06V40/168 ,  G06V10/82 ,  G06V40/161 ,  G06V40/40

Abstract: Disclosed is a liveness test method and liveness test apparatus. The liveness test method includes determining a presence of a subject using a radar sensor, performing a first liveness test on the subject based on radar data obtained by the radar sensor, in response to the subject being present, acquiring image data of the subject using an image sensor, in response to a result of the first liveness test satisfying a first condition, and performing a second liveness test on the subject based on the image data.

公开(公告)号：US20230280461A1

公开(公告)日：2023-09-07

申请号：US17948373

申请日：2022-09-20

Applicant: Samsung Electronics Co., Ltd. ,  The Industry & Academic Cooperation in Chungnam National University (IAC)

Inventor： Jong-Sok KIM ,  Byungkwan KIM ,  Sungdo CHOI

IPC: G01S13/931 ,  G01S13/89

CPC classification number: G01S13/931 ,  G01S13/89

Abstract: An operating method of a radar sensor includes: performing object classification on a detected target; comparing a confidence score of a result of the object classification with a threshold value; determining whether high-resolution information on the detected target is to be generated based on a result of the comparison; in response to a determination that the high-resolution information is to be generated, selecting one or more of a plurality of analog-to-digital converters (ADCs) of the radar sensor, and determining control information for changing a setting of the selected one or more ADCs; changing the setting of the selected one or more ADCs based on the determined control information; generating first intermediate frequency signals based on respective first reception signals and a frequency modulated signal, the first reception signals being signals received through reception antennas after a first transmission signal output by the radar sensor is reflected by the detected target, and the first transmission signal being generated based on the frequency modulated signal; generating first radar data by processing a portion of the generated first intermediate frequency signals through the selected one or more ADCs; generating second radar data by processing remaining signals among the generated first intermediate frequency signals through remaining ADCs of the plurality of ADCs; generating the high-resolution information on the detected target based on the generated first radar data; and generating high-resolution information on a predetermined range based on the generated second radar data

公开(公告)号：US20230278542A1

公开(公告)日：2023-09-07

申请号：US18317340

申请日：2023-05-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jong-Sok KIM ,  Byung Kwan KIM ,  Woosuk KIM ,  Min Sung EO ,  Hyunwoong CHO ,  Sungdo CHOI

IPC: B60W30/02 ,  G06F3/01 ,  G01S13/89 ,  B60W40/08

CPC classification number: B60W30/02 ,  G06F3/017 ,  G01S13/89 ,  B60W40/08 ,  B60W2556/45 ,  B60W2540/225 ,  B60W2420/42 ,  B60W2540/227 ,  B60W2040/0872 ,  B60W2040/0809 ,  B60W2540/221 ,  B60W2420/40

Abstract: A control apparatus includes a Wi-Fi communication module, a processor, a controller that controls a component of a vehicle, and a memory, wherein the memory stores at least one piece of position information corresponding to a position in the vehicle, and at least one registered pattern of a gesture, face, or shape, the Wi-Fi communication module transmits a transmission signal to the position corresponding to the at least one piece of position information by a Wi-Fi communication method at a preset frequency and receives a reflection signal reflected from an object in response to the transmission signal, the processor acquires an input pattern of a gesture, face, or shape of the object by analyzing the reflection signal, and retrieves a registered pattern matching the input pattern from the at least one registered pattern, and the controller controls the component according to an instruction corresponding to the retrieved registered pattern.

公开(公告)号：US20230258790A1

公开(公告)日：2023-08-17

申请号：US18305455

申请日：2023-04-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Byung Kwan KIM

IPC: G01S13/42 ,  G01S7/35 ,  G01S13/931

CPC classification number: G01S13/426 ,  G01S7/352 ,  G01S13/931

Abstract: A method with three-dimensional (3D) position measuring using a radio detection and ranging (radar) sensor includes: transmitting, through the radar sensor, a transmission signal of which a carrier frequency varies over time; obtaining, through the radar sensor, a reflected signal from the transmission signal being reflected by an object; obtaining a beat frequency signal indicating a frequency difference between the transmission signal and the reflected signal; and estimating 3D position information of the object based on groups of sample data of different frequency bands extracted from the beat frequency signal.

公开(公告)号：US20210149041A1

公开(公告)日：2021-05-20

申请号：US16912250

申请日：2020-06-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunwoong CHO ,  Jong-Sok KIM ,  Sungdo CHOI

IPC: G01S13/89 ,  G01S13/87 ,  G01S7/04 ,  G06T3/40 ,  G06K9/00

Abstract: A method with radio detection and ranging (radar) data processing may include: obtaining, by a radar sensor, input radar data; and generating, using a resolution increase model, output radar data from the input radar data and reference data, wherein the output radar data has a resolution greater than a resolution of the input radar data.

公开(公告)号：US20190049569A1

公开(公告)日：2019-02-14

申请号：US15861034

申请日：2018-01-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-sok KIM ,  Donghan KIM ,  Sungdo CHOI ,  Jaesup LEE

IPC: G01S13/34 ,  G01S13/28 ,  G01S13/93 ,  G01S17/87 ,  G01S13/58

Abstract: A distance measuring method and apparatus are provided. The distance measuring apparatus emits a transmission signal while changing a frequency over time, receives a reception signal from an object in response to the transmission signal being reflected from the object, samples a beat frequency indicating a difference between a frequency of the transmission signal and a frequency of the reception signal in a sampling range that changes based on the beat frequency, and determines a distance to the object based on the sampling.