公开(公告)号：US20240177473A1

公开(公告)日：2024-05-30

申请号：US18496063

申请日：2023-10-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jaehwan KIM ,  Jung Jae YU ,  Wonyoung YOO ,  Juwon LEE

IPC: G06V10/82 ,  G06T7/73 ,  G06V10/77

CPC classification number: G06V10/82 ,  G06T7/75 ,  G06V10/7715 ,  G06T2207/30196

Abstract: A neural network device for learning dependency of feature data includes: a memory in which at least one program is stored; and a processor that performs a calculation by executing the at least one program, in which the processor is configured to acquire graph information including a data node for a human body; extract feature data corresponding to a plurality of joints constituting the human body from the graph information; acquire a self-attention output corresponding to the feature data based on a self-attention mechanism; and generate result data for a motion of the human body based on the self-attention output, and the self-attention output includes position information acquired based on positional encoding of the feature data and structural information acquired based on geodesic encoding of the feature data.

公开(公告)号：US20140301412A1

公开(公告)日：2014-10-09

申请号：US14245550

申请日：2014-04-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byoung Hak KIM ,  Jaehwan KIM ,  Mi Kyung OH ,  Cheol-ho SHIN ,  Sangsung CHOI

IPC: H04L29/06 ,  H04J3/06

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。

公开(公告)号：US20130303091A1

公开(公告)日：2013-11-14

申请号：US13741940

申请日：2013-01-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

CPC classification number: H04B1/40 ,  H04B1/44

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。

公开(公告)号：US20150201296A1

公开(公告)日：2015-07-16

申请号：US14286874

申请日：2014-05-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi Kyung OH ,  Byoung Hak KIM ,  Cheol-ho SHIN ,  Jaehwan KIM ,  Sangsung CHOI

IPC: H04W4/00 ,  G08C17/02

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。

公开(公告)号：US20140023164A1

公开(公告)日：2014-01-23

申请号：US13945520

申请日：2013-07-18

Applicant: Electronics and Telecommunications Research Institute

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。