公开(公告)号：US20200059379A1

公开(公告)日：2020-02-20

申请号：US16535609

申请日：2019-08-08

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Sung Min Han ,  Kyu Min Kim ,  Eun Min Choi

IPC: H04L12/403 ,  H04L12/40 ,  H04L12/64

Abstract: Provided is a bus network system including: a master node switch; and a plurality of slave node switches, wherein each of the plurality of slave node switches includes at least one band limit switch configured to transmit signals in a given band, and each of the plurality of slave node switches is configured to be physically on/off controlled.

公开(公告)号：US11637846B2

公开(公告)日：2023-04-25

申请号：US16836369

申请日：2020-03-31

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Eun Min Choi ,  Sung Min Han

IPC: H04L9/40

Abstract: A method, performed by an observer node, of securing a network, includes: receiving a signal over the network; determining, based on a frequency characteristic of the received signal, which is determined according to a physical characteristic of a node, which transmits the received signal, a node, which has transmitted the received signal among a plurality of nodes included in the network; comparing a pre-learned signal pattern of the determined transmission node with a pattern of the received signal to determine whether the determined transmission node is a malicious node; and blocking the signal transmitted from the malicious node by determining that the transmission node is a malicious node.

公开(公告)号：US10897377B2

公开(公告)日：2021-01-19

申请号：US16535609

申请日：2019-08-08

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Sung Min Han ,  Kyu Min Kim ,  Eun Min Choi

IPC: H04L12/403 ,  H04L12/40 ,  H04L12/64

Abstract: Provided is a bus network system including: a master node switch; and a plurality of slave node switches, wherein each of the plurality of slave node switches includes at least one band limit switch configured to transmit signals in a given band, and each of the plurality of slave node switches is configured to be physically on/off controlled.

公开(公告)号：US11658765B2

公开(公告)日：2023-05-23

申请号：US15415110

申请日：2017-01-25

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Sung Min Han ,  Sung-Ho Lim ,  Chan Kuen Park ,  Kyung-Joon Park ,  Yongsoon Eun

IPC: H04K3/00

CPC classification number: H04K3/226 ,  H04K3/65

Abstract: A device and method for anti jamming using a decoy signal are provided. The device may include a processor configured to allocate, in connection with a request for transmission of information, first frequency band to information signal including the information and allocate a second frequency band to the decoy signal including fake information associated with the information, and an outputter configured to output the decoy signal and the information signal at a predetermined time interval and output the information signal through the first frequency band after an attack on the second frequency band by the jammer that inspects the decoy signal is detected.

公开(公告)号：US20200228564A1

公开(公告)日：2020-07-16

申请号：US16836369

申请日：2020-03-31

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Eun Min Choi ,  Sung Min Han

IPC: H04L29/06

Abstract: A method, performed by an observer node, of securing a network, includes: receiving a signal over the network; determining, based on a frequency characteristic of the received signal, which is determined according to a physical characteristic of a node, which transmits the received signal, a node, which has transmitted the received signal among a plurality of nodes included in the network; comparing a pre-learned signal pattern of the determined transmission node with a pattern of the received signal to determine whether the determined transmission node is a malicious node; and blocking the signal transmitted from the malicious node by determining that the transmission node is a malicious node.

公开(公告)号：US20170214486A1

公开(公告)日：2017-07-27

申请号：US15415110

申请日：2017-01-25

Applicant: Daegu Gyeongbuk Institute of Science and Technology

Inventor： Ji Woong Choi ,  Sung Min Han ,  Sung-Ho Lim ,  Chan Kuen Park ,  Kyung-Joon Park ,  YongSoon Eun

IPC: H04K3/00

CPC classification number: H04K3/226 ,  H04K3/42 ,  H04K3/65

Abstract: A device and method for anti jamming using a decoy signal are provided. The device may include a processor configured to allocate, in connection with a request for transmission of information, first frequency band to information signal including the information and allocate a second frequency band to the decoy signal including fake information associated with the information, and an outputter configured to output the decoy signal and the information signal at a predetermined time interval and output the information signal through the first frequency band after an attack on the second frequency band by the jammer that inspects the decoy signal is detected.