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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.
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2.发明申请METHOD AND APPARATUS FOR TRANSMITTING WIRELESS PERSONAL AREA NETWORK COMMUNICATION SYSTEM 有权用于发送无线个人网络通信系统的方法和装置公开(公告)号：US20150201296A1
公开(公告)日：2015-07-16
申请号：US14286874
申请日：2014-05-23
Inventor： Mi Kyung OH , Byoung Hak KIM , Cheol-ho SHIN , Jaehwan KIM , Sangsung CHOI
CPC classification number: H04W4/70 , G01D4/002 , G08C17/02 , H04J3/0608 , H04L1/00 , H04L1/0041 , H04L1/0071 , H04L1/02 , H04L7/00 , H04L27/2078 , H04Q2209/43 , H04Q2209/60 , H04W56/00
Abstract: A transmitting apparatus of a WPAN communication system generates a synchronization header, a physical layer header, and a physical layer service data unit, multiplexes the synchronization header and the physical layer header into a bit stream and then modulates the multiplexed bit stream by a first differential phase modulation scheme, modulates the physical layer service data unit by a second differential phase modulation scheme, and multiplexes and transmits a symbol modulated by the first differential phase modulation scheme and a symbol modulated by the second differential phase modulation scheme into a symbol stream.
Abstract translation: WPAN通信系统的发送装置生成同步报头，物理层报头和物理层服务数据单元，将同步报头和物理层报头复用为比特流，然后通过第一差分 通过第二差分相位调制方式对物理层服务数据单元进行调制，并将由第一差分相位调制方式调制的码元和由第二差分相位调制方式调制的符号复用并发送到符号流。
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3.发明申请METHOD OF GENERATING PACKET, METHOD OF TRANSMITTING PACKET, AND METHOD OF RANGING OF PHYSICAL LAYER TRANSMITTER OF WIRELESS PERSONAL AREA NETWORK SYSTEM 有权生成分组的方法，发送分组的方法和无线个人网络系统的物理层发射机的方法公开(公告)号：US20140016653A1
公开(公告)日：2014-01-16
申请号：US13938772
申请日：2013-07-10
Inventor： Mi Kyung OH , cheol-ho SHIN , Young Ae JEON , Sangsung CHOI
IPC: H04W72/04
CPC classification number: H04W72/0406 , H04W56/001
Abstract: A method of generating a packet of a physical layer transmitter of a TV white space (TVWS) wireless personal area network (WPAN) system operating a WPAN service in TVWS is provided. A packet that is generated by the method of generating the packet includes a preamble, a start frame delimiter that is positioned after the preamble, a first physical layer header that is positioned after the start frame delimiter, and a physical layer service data unit that is positioned after the first physical layer header. Here, the first physical layer header represents whether the packet is a ranging packet for ranging, and includes a ranging packet identification bit corresponding to a reserved bit of the second physical layer header in a SUN system and a LECIM system, and a parity bit.
Abstract translation: 提供了一种在TVWS中生成运行WPAN服务的TV空白（TVWS）无线个域网（WPAN）系统的物理层发送机的分组的方法。 通过生成分组的方法生成的分组包括前导码，位于前导码之后的起始帧分隔符，位于起始帧定界符之后的第一物理层报头，以及物理层服务数据单元， 位于第一个物理层标题之后。 这里，第一物理层标题表示分组是否是用于测距的测距分组，并且包括与SUN系统和LECIM系统中的第二物理层报头的保留位相对应的测距分组标识位和奇偶校验位。
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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.
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Patent Agency Ranking
5.发明申请公开(公告)号：US20140023164A1
公开(公告)日：2014-01-23
申请号：US13945520
申请日：2013-07-18
Inventor： Mi Kyung OH , Byoung Hak KIM , cheol-ho SHIN , Jaehwan KIM , Sangsung CHOI
IPC: H04L27/14
CPC classification number: H04L27/14 , H04L27/0014 , H04L27/16
Abstract: A receiving apparatus receives an FSK signal, converts the FSK signal into a phasor including amplitude and phase, estimates and compensates for a CFO (carrier frequency offset) from the converted phasor, and recovers a data bit from the converted phasor.
Abstract translation: 接收装置接收FSK信号，将FSK信号转换为包括幅度和相位的相量，估计并补偿来自转换的相量的CFO（载波频率偏移），并从转换的相量中恢复数据位。
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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.
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7.发明申请METHOD OF CREATING PREAMBLE, AND METHOD AND APPARATUS FOR DETECTING FRAME BOUNDARY 有权创建前缀的方法，以及用于检测框架边界的方法和装置公开(公告)号：US20140301412A1
公开(公告)日：2014-10-09
申请号：US14245550
申请日：2014-04-04
Inventor： Byoung Hak KIM , Jaehwan KIM , Mi Kyung OH , Cheol-ho SHIN , Sangsung CHOI
CPC classification number: H04J3/0602 , H04L5/0048 , H04L27/2656 , H04L27/2671 , H04L27/2675 , H04L27/2692
Abstract: A method and apparatus of detecting a frame boundary by using a preamble are provided. The method includes delaying the preamble by a predetermined length of time, wherein the preamble includes an LTF and a code of the (n+1)th one of 2n sync sequences of the LTF is the inverse of a code of the last one of the sync sequences of STF; calculating a correlation value between the preamble and the delayed preamble; and detecting a frame boundary by comparing the correlation value with a threshold correlation value.
Abstract translation: 提供了一种通过使用前置码检测帧边界的方法和装置。 该方法包括将前导延迟预定的时间长度，其中前导码包括LTF，并且LTF的2n个同步序列中的第（n + 1）个第（n + 1）个码的代码是 STF同步序列; 计算所述前同步码和所述延迟前同步码之间的相关值; 以及通过将所述相关值与阈值相关值进行比较来检测帧边界。
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公开(公告)号：US20130303091A1
公开(公告)日：2013-11-14
申请号：US13741940
申请日：2013-01-15
Inventor： Seung Sik LEE , Sangsung CHOI , Jae Young KIM , Young Ae JEON , cheol-ho SHIN , Sangjae LEE , Byoung Hak KIM , Jaehwan KIM , Mi Kyung OH
IPC: H04B1/40
Abstract: A high frequency transmitting and receiving apparatus of a wireless communication system low-noise amplifies a signal that is received from a transmitting and receiving antenna through a low noise amplifier in a reception mode, and amplifies a signal be transmitted through a power amplifier in a transmission mode and transmits the signal through the transmitting and receiving antenna, and the high frequency transmitting and receiving apparatus is connected between the transmitting and receiving antenna and the low noise amplifier and turns on a switch in a reception mode and turns off the switch in a transmission mode, thereby separating transmitting and receiving signals.
Abstract translation: 无线通信系统的高频发送和接收装置以接收模式通过低噪声放大器低噪声地放大从发送和接收天线接收的信号，并且放大在发送中通过功率放大器发送的信号 模式，并通过发送和接收天线发送信号，并且高频发射和接收设备连接在发射和接收天线与低噪声放大器之间，并以接收模式接通开关，并在传输中关闭开关 模式，从而分离发送和接收信号。
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9.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.
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