公开(公告)号：US12270892B2

公开(公告)日：2025-04-08

申请号：US18628120

申请日：2024-04-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo Choi ,  Seung Tae Khang

IPC: G01S13/58 ,  G01S13/02 ,  G01S13/34 ,  G01S13/931

Abstract: Disclosed is a method and apparatus for processing a radar signal by correcting a phase distortion. The method includes generating radar data based on a radar transmission signal transmitted through an array antenna of a radar sensor based on a frequency modulation model and a radar reception signal received through the array antenna as the radar transmission signal is reflected by a target, correcting the radar data using a correction vector for correcting a feedline error occurring due to a feedline delay difference between channels of the array antenna, and estimating a direction of arrival corresponding to the corrected radar data using a direction matrix reflecting a phase shift of the corrected radar data according to frequency modulation characteristics of the frequency modulation model.

公开(公告)号：US11835622B2

公开(公告)日：2023-12-05

申请号：US17082332

申请日：2020-10-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo Choi ,  Byung Kwan Kim

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

CPC classification number: G01S13/931 ,  G01S7/04 ,  G01S13/72 ,  G01S13/89

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.

公开(公告)号：US11982732B2

公开(公告)日：2024-05-14

申请号：US17121956

申请日：2020-12-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sungdo Choi ,  Seung Tae Khang

IPC: G01S13/58 ,  G01S13/02 ,  G01S13/34 ,  G01S13/931

CPC classification number: G01S13/589 ,  G01S13/34 ,  G01S13/931 ,  G01S2013/0245

Abstract: Disclosed is a method and apparatus for processing a radar signal by correcting a phase distortion. The method includes generating radar data based on a radar transmission signal transmitted through an array antenna of a radar sensor based on a frequency modulation model and a radar reception signal received through the array antenna as the radar transmission signal is reflected by a target, correcting the radar data using a correction vector for correcting a feedline error occurring due to a feedline delay difference between channels of the array antenna, and estimating a direction of arrival corresponding to the corrected radar data using a direction matrix reflecting a phase shift of the corrected radar data according to frequency modulation characteristics of the frequency modulation model.

公开(公告)号：US11290198B2

公开(公告)日：2022-03-29

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: H04B7/04 ,  H01Q3/24 ,  H04B17/21 ,  H04B17/318 ,  H04B7/08 ,  H01Q21/28 ,  H04W52/24 ,  H04W68/00 ,  H01Q1/24 ,  H04W16/28

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：US09760181B2

公开(公告)日：2017-09-12

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.

公开(公告)号：US12050258B2

公开(公告)日：2024-07-30

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：US11964650B2

公开(公告)日：2024-04-23

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: B60W30/00 ,  B60W30/02 ,  B60W40/08 ,  G01S13/89 ,  G06F3/01

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：US11828839B2

公开(公告)日：2023-11-28

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 ,  G01S13/87 ,  G01S13/931

CPC classification number: G01S13/584 ,  G01S13/18 ,  G01S13/53 ,  G01S13/532 ,  G01S13/64 ,  G01S13/87 ,  G01S13/89 ,  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：US10914836B2

公开(公告)日：2021-02-09

申请号：US15920990

申请日：2018-03-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaesup Lee ,  Sungdo Choi ,  Byung Kwan Kim

IPC: G01S13/90 ,  G01S13/931 ,  G01S13/87 ,  G01S13/48 ,  G01S13/42 ,  G01S13/00 ,  G01S7/40 ,  G01S13/02

Abstract: A radar image processing method includes acquiring captured images from radars synchronized to perform beamforming on a same point at a same time, synthesizing the captured images based on at least one overlapping area of the captured images, and generating a high-resolution image based on the synthesized images.

公开(公告)号：US12298429B2

公开(公告)日：2025-05-13

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 ,  G01S13/58 ,  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.