公开(公告)号：US20210143919A1

公开(公告)日：2021-05-13

申请号：US15930834

申请日：2020-05-13

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04B17/21 ,  H04B17/318 ,  H04B7/08 ,  H04W16/28 ,  H04W52/24 ,  H04W68/00 ,  H01Q3/24 ,  H01Q1/24 ,  H01Q21/28

Abstract: Disclosed are obstacle detecting methods and apparatuses, the method of detecting an obstacle near a device includes, determining whether to detect an obstacle, detecting the obstacle using communication modules, in response to determining to detect the obstacle, determining whether a result of detecting the obstacle meets a threshold, detecting the obstacle using antennas of a communication module corresponding to a direction of the obstacle from among the communication modules, in response to the result of determining the obstacle meeting the threshold, and outputting a warning signal based on the result of detecting the obstacle using the communication modules or a result of detecting the obstacle using the antennas.

公开(公告)号：US20200003886A1

公开(公告)日：2020-01-02

申请号：US16351689

申请日：2019-03-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunwoong CHO ,  Sungdo CHOI

IPC: G01S13/58 ,  G06N3/08 ,  G06N3/04 ,  G06N20/20

Abstract: Disclosed is an ego motion estimation method and apparatus. The ego motion estimation apparatus may generate input data based on radar sensing data collected by one or more radar sensors for each of a plurality of time frames, and estimate ego motion information based on the input data using a motion recognition model.

公开(公告)号：US20230228840A1

公开(公告)日：2023-07-20

申请号：US17976162

申请日：2022-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunwoong CHO ,  Sungdo CHOI

IPC: G01S7/02 ,  G01S7/282

CPC classification number: G01S7/023 ,  G01S7/282

Abstract: An electronic device includes: a radar sensor configured to radiate a radar signal and receive a reflected signal of the radiated radar signal by: transmitting at least some chirp signals among a plurality of chirp signals belonging to the same frame through a single antenna among a plurality of antennas of the radar sensor; and transmitting other chirp signals among the plurality of chirp signals belonging to the same frame through at least two antennas among the plurality of antennas; and one or more processors configured to detect a target and determine a direction of arrival (DOA) of the target from radar data determined based on the at least some chirp signals, the other chirp signals, and the reflected signal.

公开(公告)号：US20210356971A1

公开(公告)日：2021-11-18

申请号：US17391110

申请日：2021-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo CHOI

IPC: G05D1/02 ,  G01S7/41 ,  G01S13/931 ,  G01S13/42

Abstract: An object detection method and apparatus for a vehicle in a confined space are provided. An object detection method for a vehicle traveling in a confined space, includes determining a first beam pattern and a second beam pattern based on geometric information of the confined space, detecting first candidate objects based on a first transmission signal emitted to form the first beam pattern using at least one antenna, detecting second candidate objects based on a second transmission signal emitted to form the second beam pattern using the at least one antenna, detecting at least one clutter object based on the first candidate objects and the second candidate objects, and detecting a target object based on the at least one clutter object.

公开(公告)号：US20210181305A1

公开(公告)日：2021-06-17

申请号：US16924544

申请日：2020-07-09

Applicant: Samsung Electronics Co., Ltd.

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

IPC: G01S7/41 ,  G01S13/86 ,  G01S13/04 ,  G01S7/02 ,  G06K9/00

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：US20150160737A1

公开(公告)日：2015-06-11

申请号：US14564762

申请日：2014-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Moonsik JEONG ,  Seongoh LEE ,  Sungdo CHOI ,  Hyeonhee CHA

IPC: G06F3/01 ,  G06K9/00

CPC classification number: G06F3/017 ,  G06F2203/04101 ,  G06K9/00355

Abstract: A method for recognizing a gesture by using a sensor is provided. The method includes recognizing sensor values for an object uninterruptedly in a plurality of sensors having a different operational range, generating a control value by combining the sensor values, and executing a function corresponding to the control value.

Abstract translation: 提供了一种通过使用传感器识别手势的方法。 该方法包括在具有不同操作范围的多个传感器中不间断识别物体的传感器值，通过组合传感器值产生控制值，并执行与控制值相对应的功能。

公开(公告)号：US20240125923A1

公开(公告)日：2024-04-18

申请号：US18183881

申请日：2023-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G01S13/931 ,  G06V10/82 ,  G06V20/58

CPC classification number: G01S13/931 ,  G06V10/82 ,  G06V20/58

Abstract: A method and device for object recognition for information collected from a sensor of a moving object are disclosed. The method may include identifying a target with a confidence level of recognition accuracy less than a threshold, based on first sensing information collected from a moving object, obtaining second sensing information on the target from an interworking moving object, synchronizing the first sensing information and the second sensing information based on time information included in the first sensing information and time information included in the second sensing information, and training a neural network for estimating recognition information of the target from the first synchronized sensing information by using information on the target included in the second synchronized sensing information as ground truth data.

公开(公告)号：US20240053435A1

公开(公告)日：2024-02-15

申请号：US18496145

申请日：2023-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/931 ,  G01S13/58

CPC classification number: G01S7/354 ,  G01S7/356 ,  G01S13/536 ,  G01S13/931 ,  G01S13/584

Abstract: A radar signal processing method includes: extracting a first chirp sequence signal of a first carrier frequency and a second chirp sequence signal of a second carrier frequency from a radar signal received through an array antenna in a radar sensor; generating a first range-Doppler map by performing frequency conversion on the first chirp sequence signal; detecting a first target cell corresponding to a first target in the first range-Doppler map; determining a first ambiguous Doppler velocity of the first target based on first frequency information of the first target cell; determining a first range of an unambiguously measurable Doppler velocity through the first chirp sequence signal; estimating second ambiguous Doppler velocities based on the first ambiguous Doppler velocity and the first range; and determining a Doppler velocity of the first target by performing partial frequency conversion on the second chirp sequence signal based on the second ambiguous Doppler velocities.

公开(公告)号：US20220082682A1

公开(公告)日：2022-03-17

申请号：US17536539

申请日：2021-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo CHOI

IPC: G01S13/58 ,  G01S13/89 ,  G01S13/532 ,  G01S13/18 ,  G01S13/53 ,  G01S13/64

Abstract: A radio detection and ranging (radar) operating apparatus includes: radar sensors configured to receive signals reflected from an object; and a processor configured to generate Doppler maps for the radar sensors based on the reflected signals and estimate a time difference between the radar sensors based on the generated Doppler maps.

公开(公告)号：US20210199797A1

公开(公告)日：2021-07-01

申请号：US17082332

申请日：2020-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Byung Kwan KIM

IPC: G01S13/931 ,  G01S13/89 ,  G01S7/04 ,  G01S13/72

Abstract: A radio detection and ranging (radar) signal processing device obtains radar data by compensating for a change in a carrier frequency of a sensed radar signal, and outputs a radar image map based on the obtained radar data. The radar signal processing method includes obtaining a beat frequency signal based on a radar transmission signal generated based on a frequency modulation model and a radar reflection signal obtained from the radar transmission signal being reflected from an object, and generating radar data by compensating the beat frequency signal for a carrier frequency change by the frequency modulation model.