公开(公告)号：US10958428B2

公开(公告)日：2021-03-23

申请号：US15350376

申请日：2016-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang-Ho Hong ,  Na-Young Kim ,  O-Sung Kwon ,  Youn-Chang Jeong ,  Haeng-Seok Ko ,  Jin-Gak Jang ,  Dae-Sung Kwon

IPC: H04L9/08 ,  H04L9/00

Abstract: A device and method for quantum key distribution (QKD). The QKD center includes an authentication key sharing unit for sharing authentication keys with QKD client devices; a quantum key generation unit for generating a sifted key for each of the QKD client devices using a quantum state; an error correction unit for generating output bit strings by correcting errors of the sifted keys; and a bit string operation unit for calculating an encryption bit string by performing a cryptographic operation on the authentication keys, the distribution output bit strings and output bit strings received from the QKD client devices. The present invention improves security by preventing the QKD center from being aware of keys shared among users.

公开(公告)号：US09559794B2

公开(公告)日：2017-01-31

申请号：US14064163

申请日：2013-10-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young-Hyoun Kwon ,  Kyung-Hoon Lee ,  Hui-Rae Cho ,  Jae-Ki Lee ,  Hee-Sun Park ,  Jin-Gak Jang ,  Jin-Hyun Kim ,  Ji-Eun Kim ,  In-Ho Hwang ,  Chun-Soo Kim

IPC: H04B17/00 ,  H04B17/309 ,  H04B17/23

CPC classification number: H04B17/309 ,  H04B17/23

Abstract: A signal detection apparatus includes a signal reception unit, an Analog to Digital (A/D) signal processing unit, and a user interface unit. The signal reception unit receives an external signal. The A/D signal processing unit determines whether the received signal is an abnormal signal based on a plurality of signal profiles having different signal characteristics, and obtains the abnormal signal if, as a result of the determination, it is determined that the received signal is the abnormal signal. The user interface unit displays the abnormal signal.

Abstract translation: 信号检测装置包括信号接收单元，模数（A / D）信号处理单元和用户接口单元。 信号接收单元接收外部信号。 A / D信号处理单元基于具有不同信号特性的多个信号轮廓来确定接收信号是否是异常信号，并且如果作为确定的结果确定接收到的信号是 异常信号。 用户界面单元显示异常信号。

公开(公告)号：US09322898B2

公开(公告)日：2016-04-26

申请号：US13918678

申请日：2013-06-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jong-Kyu Kim ,  Hui-Rae Cho ,  Jin-Gak Jang ,  In-Ho Hwang ,  Chun-Soo Kim

IPC: G01S5/04 ,  G01S5/02 ,  G01S3/40

CPC classification number: G01S3/40

Abstract: An apparatus and method for estimating the direction of an RF signal is provided. The apparatus includes an antenna for receiving an RF signal. An electronic compass is configured to, as a pointing direction of the antenna is varied, generate information about pointing directions and pointing angles corresponding to variations in the pointing direction of the antenna. A control unit determines RSSI values at respective pointing angles of the antenna based on a received signal of the antenna and information of the electronic compass depending on the variations, extracts a maximum RSSI value from the RSSI values at respective pointing angles, and stores the maximum RSSI value and a pointing direction corresponding to the maximum RSSI value. A display unit displays the RSSI values at the respective pointing angles and a trajectory of the RSSI values at respective pointing angles under control of the control unit.

Abstract translation: 提供了一种用于估计RF信号的方向的装置和方法。 该装置包括用于接收RF信号的天线。 电子罗盘被配置为随着天线的指向方向的变化，产生关于与天线的指向方向上的变化相对应的指向方向和指向角度的信息。 控制单元基于天线的接收信号和根据变化的电子罗盘的信息来确定天线的相应指向角处的RSSI值，从各个指向角度的RSSI值提取最大RSSI值，并存储最大值 RSSI值和对应于最大RSSI值的指向方向。 显示单元在控制单元的控制下，在相应的指向角度处显示RSSI值和各个指向角度处的RSSI值的轨迹。

公开(公告)号：US09264174B2

公开(公告)日：2016-02-16

申请号：US13896467

申请日：2013-05-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin-Gak Jang ,  Hui-Rae Cho ,  In-Ho Hwang ,  Jong-Kyu Kim ,  Chun-Soo Kim

IPC: H04K3/00

CPC classification number: H04K3/42 ,  H04K3/28 ,  H04K3/41 ,  H04K3/43 ,  H04K3/45 ,  H04K3/825 ,  H04K3/827

Abstract: A wideband intelligent jamming control apparatus and method is provided, which efficiently control an unauthorized threat signal. The wideband intelligent jamming control apparatus includes a signal detection terminal for detecting and analyzing wideband frequency signals in real time, and transmitting a jamming command and jamming signal specification information if a corresponding wideband frequency signal is determined to be an unauthorized threat signal. A jamming terminal receives the jamming command and the jamming signal specification information, and generates and emits a jamming signal based on the jamming command and the jamming signal specification information. The signal detection terminal and the jamming terminal may be configured to be physically separated from each other and may be controlled on a network.

Abstract translation: 提供了一种宽带智能干扰控制装置和方法，其有效地控制未经授权的威胁信号。 宽带智能干扰控制装置包括用于实时检测和分析宽带频率信号的信号检测终端，并且如果相应的宽带频率信号被确定为未经授权的威胁信号，则发送干扰命令和干扰信号指定信息。 干扰终端接收到干扰命令和干扰信号指定信息，并根据干扰指令和干扰信号指定信息产生并发出干扰信号。 信号检测端子和干扰端子可以被配置为在物理上彼此分离并且可以在网络上被控制。