-
公开(公告)号：US20240214115A1
公开(公告)日：2024-06-27
申请号：US18396528
申请日：2023-12-26
Inventor： Soo Yeob JUNG , Mi Kyung OH , Joon Gyu RYU , Sang Jae LEE
CPC classification number: H04L1/0061 , H04L1/0071 , H04L5/0012 , H04L27/2605
Abstract: A transmission device in a satellite IoT system may comprise: a CRC value generator that receives first data and generates and outputs a payload CRC value; a forward error correction encoder that receives second data consisting of the first data and the payload CRC value from the CRC value generator, and performs forward error correction coding on the second data; an interleaver that receives third data consisting of the forward error correction coded first data and the payload CRC value from the forward error correction encoder, and outputs interleaved payload blocks by performing cyclic shifts on the forward error correction coded first data based on offsets; and a frequency hopping unit that receives the interleaved payload blocks from the interleaver, and generates and transmits payload blocks frequency-hopped according to a hopping sequence.
-
公开(公告)号：US20250080146A1
公开(公告)日：2025-03-06
申请号：US18822872
申请日：2024-09-03
Inventor： Soo Yeob JUNG , Jun Se LEE , Mi Kyung OH , Sang Jae LEE , Joon Gyu RYU
Abstract: According to an aspect of the present disclosure, there is provided a method of controlling a power amplifier in a low-orbit satellite network, the method comprising: communicating, by a terminal, with a satellite; setting an initial applied voltage and frequency; receiving orbit information from the satellite; and updating the initial applied voltage according to the orbit information and network environment.
-
3.发明申请公开(公告)号：US20200162249A1
公开(公告)日：2020-05-21
申请号：US16654738
申请日：2019-10-16
Inventor： Sang Jae LEE , Mi Kyung OH , You Sung KANG , Ik Kyun KIM , Doo Ho CHOI
IPC: H04L9/08 , H04L9/32 , H03L7/099 , H03K19/096
Abstract: Disclosed is a method of generating secret information on the basis of a ring oscillator. According to an embodiment of the present disclosure, there is provided an apparatus for generating secret information on the basis of a ring oscillator, the apparatus including: multiple PUF information generation units each including at least one ring oscillator cell and generating physically unclonable function (PUF) information generated by the at least one ring oscillator cell; a phase checking unit cross-checking phases for the multiple pieces of the PUF information that are output from the multiple PUF information generation units, respectively; and a secret key generation unit outputting secret key information based on a result of comparing the multiple phases received from the phase checking unit.
-
公开(公告)号：US20230156463A1
公开(公告)日：2023-05-18
申请号：US17967957
申请日：2022-10-18
Inventor： Yong Sung JEON , Ha Young SEONG , Sang Woo LEE , You Sung KANG , Ik Kyun KIM , Mi Kyung OH , Sang Jae LEE
CPC classification number: H04W12/03 , H04L1/0061
Abstract: Provided is a module and method for transmitting information using a wireless hidden signal, which is capable of transmitting important information data requiring extreme security using a wireless hidden signal, and allowing the important information to be detected and distinguished by only promised transmitting/receiving parties so that the possibility of the wireless hidden signal being discovered can be minimized and security can be enhanced. The module for transferring information using a wireless hidden signal includes: a hidden formatting unit configured to generate a transmission data frame structure based on data that needs to be wirelessly transmitted; a hidden encoding unit configured to encode the generated transmission data frame structure to generate and output a hidden encoded bit stream; and a hidden modulation unit configured to convert the output hidden encoded bit stream into a wireless signal in a wireless transmission format.
-
-
-
Search Results
4
records
(took 0.013 seconds)
