公开(公告)号：US20240169588A1

公开(公告)日：2024-05-23

申请号：US18515418

申请日：2023-11-21

Applicant: KOREA NATIONAL UNIVERSITY OF TRANSPORTATION Industry-Academic Cooperation Foundation

Inventor： Cheol MUN

IPC: G06T7/80 ,  G06F11/07 ,  G06V10/75

CPC classification number: G06T7/80 ,  G06F11/0772 ,  G06V10/7515 ,  G06T2207/30184

Abstract: The present invention relates to a method and an apparatus for detecting and correcting positioning errors of sensed objects in real time in infrastructure sensors. A method for detecting and correcting positioning errors of sensed objects in real time in infrastructure sensors may include: (a) acquiring an image from an infrastructure sensor; (b) determining a first pixel corresponding to a corner of each object included in the image, and a second pixel which does not correspond to the corner of the object; (c) generating a binary matrix corresponding to the first pixel and the second pixel; and (d) calibrating an absolute coordinate of the image according to a similarity based on the binary matrix.

公开(公告)号：US20240089858A1

公开(公告)日：2024-03-14

申请号：US18513997

申请日：2023-11-20

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Korea National University of Transportation Industry-Academic Cooperation Foundation

Inventor： Yong Ho Kim

IPC: H04W52/02

CPC classification number: H04W52/0235

Abstract: A method and device for a power saving operation in a communication system supporting multiple links includes a method of a first device including the steps of performing a PS setting procedure with a second device; generating a first frame including a first data unit, for initiating a transmission operation according to the PS setting procedure; and transmitting the first frame to the second device in a first link mapped to the first data unit among multiple links set between the first device and the second device.

公开(公告)号：US20240064810A1

公开(公告)日：2024-02-22

申请号：US18385658

申请日：2023-10-31

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  Korea National University of Transportation Industry-Academic Cooperation Foundation

Inventor： Yong Ho Kim

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: A method and a device for transmitting/receiving data in a communication system supporting a multi-link includes a method of a first device, including the steps of: performing a first back-off operation on a first data frame in a first link; performing a second back-off operation on a second data frame in a second link; transmitting the first data frame to a second device in the first link if the first back-off operation is successful; generating a second data frame part #1 and a second data frame part #2 by performing a fragmentation operation for the second data frame in order to match a transmission completion point of the second data frame with a transmission completion point of the first data frame if the second back-off operation is successful during the transmission of the first data frame; and transmitting the second data frame part #1 to the second device in the second link.

公开(公告)号：US20240040634A1

公开(公告)日：2024-02-01

申请号：US18021696

申请日：2021-08-18

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho Kim

IPC: H04W74/08 ,  H04W76/15

CPC classification number: H04W74/085 ,  H04W76/15

Abstract: Disclosed are a method and a device for saving power in a communication system supporting multiple links. An operation method of a first STA affiliated with a first device comprises: transmitting, to a first AP affiliated with a second device, a first frame which requests configuration of one or more TWT SPs for multiple links including a first link and a second link being in an NSTR relationship; and receiving, from the first AP, a second frame including configuration information of the one or more TWT SPs, wherein the one or more TWT SPs in the first link and the one or more TWT SPs in the second link are identically configured.

公开(公告)号：US20230406714A1

公开(公告)日：2023-12-21

申请号：US18037352

申请日：2021-01-06

Applicant: KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： In Sik IN ,  Jihoon LEE ,  So Yeon KIM ,  Seong Min PARK

IPC: C01B32/921

CPC classification number: C01B32/921

Abstract: The present disclosure relates to a surface-modified two-dimensional MXene and a method for manufacturing the same, and in particular, to a surface-modified two-dimensional MXene having the surface modified with a compound including a hydroxyl group or an ionic compound, thereby preventing oxidation of MXene and improving dispersibility.

公开(公告)号：US20230155641A1

公开(公告)日：2023-05-18

申请号：US17923050

申请日：2021-04-29

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho Kim

IPC: H04B7/0452 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04B7/0452 ,  H04L5/0055 ,  H04W56/001

Abstract: Disclosed are a method and a device for indicating data transmission in a communication system supporting multiple links. A first device operating method comprises: generating a data frame including first information indicating a communication method in multiple links including a first link and a second link; transmitting the data frame to a second device in the multiple links; and receiving an ACK frame for the data frame from the second device in one or more links from among the multiple links.

公开(公告)号：US20230135332A1

公开(公告)日：2023-05-04

申请号：US17918851

申请日：2021-04-13

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho Kim

IPC: H04W74/08

Abstract: A method and a device are disclosed for direct communication in a wireless local area network (LAN) system. An operation method of an access point comprises the steps of: transmitting a first frame including time information of a first communication period to a first station in order to configure the first communication period; receiving, from the first station, a second frame that is a response frame to the first frame, and configuring the first communication period; and after receiving the second frame, transmitting a third frame including time information of a second communication period to a second station in order to configure the second communication period within the first communication period.

公开(公告)号：US11553426B2

公开(公告)日：2023-01-10

申请号：US17115404

申请日：2020-12-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho Kim ,  Sung Hyun Hwang ,  Igor Kim ,  Seung Keun Park

IPC: H04W52/02 ,  H04W74/06 ,  H04W84/12 ,  H04W74/08 ,  H04W74/00

Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.

公开(公告)号：US20220369229A1

公开(公告)日：2022-11-17

申请号：US17771422

申请日：2020-10-23

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho Kim ,  Han Seul Hong

IPC: H04W52/02

Abstract: Disclosed is a method for transmitting/receiving information using WUR. A communication node comprises: a processor; a memory containing one or more instructions executed by the processor; a first transceiver operating on the basis of the one or more instructions; and a second transceiver operating on the basis of the one or more instructions.

公开(公告)号：US11368954B2

公开(公告)日：2022-06-21

申请号：US16811218

申请日：2020-03-06

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea National University of Transportation Industry-Academic Cooperation Foundation

Inventor： Yong Ho Kim

IPC: H04W72/04 ,  H04W52/02

Abstract: An operation method performed by a first communication node for receiving a frame in a communication system is provided. A part of the frame is received from a second communication node during a first interval. A delay period is determined for delaying a switching time point from the first interval to a second interval is later than a preconfigured switching time point based on a result of receiving the part of the frame. Then a reception of the frame is completed during the delay period and the first interval is switched to the second interval.