公开(公告)号：US11815906B2

公开(公告)日：2023-11-14

申请号：US17391110

申请日：2021-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo Choi

IPC: G05D1/02 ,  G01S13/93 ,  G01S7/41 ,  G01S13/931 ,  G01S13/42

CPC classification number: G05D1/0257 ,  G01S7/411 ,  G01S7/414 ,  G01S13/42 ,  G01S13/931 ,  G05D1/0212 ,  G05D2201/0213

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：US11719811B2

公开(公告)日：2023-08-08

申请号：US16912250

申请日：2020-06-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunwoong Cho ,  Jong-Sok Kim ,  Sungdo Choi

IPC: G01S13/931 ,  G01S7/04 ,  G01S13/87 ,  G01S13/89 ,  G06T3/40 ,  G06N20/00 ,  G06N3/08

CPC classification number: G01S13/931 ,  G01S7/04 ,  G01S13/872 ,  G01S13/89 ,  G06T3/4046 ,  G06N3/08 ,  G06N20/00

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：US11685365B2

公开(公告)日：2023-06-27

申请号：US16990206

申请日：2020-08-11

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 ,  B60W40/08 ,  G01S13/89 ,  G06F3/017 ,  B60W2040/0809 ,  B60W2040/0872 ,  B60W2420/40 ,  B60W2420/42 ,  B60W2540/221 ,  B60W2540/225 ,  B60W2540/227 ,  B60W2556/45

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：US11187796B2

公开(公告)日：2021-11-30

申请号：US16243410

申请日：2019-01-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo Choi

IPC: G01S13/58 ,  G01S13/89 ,  G01S13/532 ,  G01S13/18 ,  G01S13/53 ,  G01S13/64 ,  G01S13/931

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：US11067680B2

公开(公告)日：2021-07-20

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 ,  G01S17/87 ,  G01S13/93 ,  G01S13/931 ,  G01S7/35 ,  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.

公开(公告)号：US12175729B2

公开(公告)日：2024-12-24

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 ,  G06V10/82 ,  G06V40/16 ,  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：US11802939B2

公开(公告)日：2023-10-31

申请号：US17331074

申请日：2021-05-26

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 ,  G01S13/584 ,  G01S13/931

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：US11776239B2

公开(公告)日：2023-10-03

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

CPC classification number: G06V10/764 ,  G01S7/024 ,  G01S7/412 ,  G01S13/04 ,  G01S13/867 ,  G06V10/82 ,  G06V40/161 ,  G06V40/166 ,  G06V40/168 ,  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：US11662452B2

公开(公告)日：2023-05-30

申请号：US16853042

申请日：2020-04-20

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：US11506776B2

公开(公告)日：2022-11-22

申请号：US16658229

申请日：2019-10-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunwoong Cho ,  Byung Kwan Kim ,  Jong-Sok Kim ,  Sungdo Choi

IPC: G01S13/58 ,  G01S13/89 ,  G01S7/35 ,  G01S13/931 ,  G06T3/40

Abstract: A method of increasing a resolution of radar data is provided. The method of training a radar resolution increase model comprises generating a high-resolution training ground truth and a low-resolution training input from original raw radar data based on information corresponding to at least one of dimensions defining the original raw radar data, and training the resolution increase model based on the high-resolution training ground truth and the low-resolution training input. A radar data processing device generates high-resolution output data from low-resolution input data based on a trained resolution increase model.