公开(公告)号：KR20100051411A

公开(公告)日：2010-05-17

申请号：KR20080110569

申请日：2008-11-07

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： PARK BONG HYUK ,  LEE SEUNG SIK ,  JANG SEUNG HYUN ,  CHOI SANG SUNG

IPC: H03F1/26 ,  H03F1/42

CPC classification number: H03F1/26 ,  H03F1/223 ,  H03F1/42 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/534

Abstract: PURPOSE: A wideband low noise amplifier is provided to improve a noise property by reducing a noise index and facilitate an ultra wideband input matching. CONSTITUTION: A common gate amplifier(110) amplifies an input signal inputted to an input terminal and outputs the amplified signal to an output terminal. A cascade amplifier(120) amplifies the output voltage of the common gate amplifier inputted to the input terminal and outputs the amplified voltage to the output terminal. A source following buffer(130) outputs the output voltage of the cascade amplifier inputted to the input terminal to reduce signal attenuation.

Abstract translation: 目的：提供宽带低噪声放大器，通过降低噪声指数和促进超宽带输入匹配来提高噪声性能。 构成：公共栅极放大器（110）放大输入到输入端的输入信号，并将放大的信号输出到输出端。 级联放大器（120）放大输入到输入端的公共栅极放大器的输出电压，并将放大的电压输出到输出端。 源跟随缓冲器（130）输出输入到输入端的级联放大器的输出电压以减少信号衰减。

公开(公告)号：KR20120071951A

公开(公告)日：2012-07-03

申请号：KR20100133697

申请日：2010-12-23

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： OH MI KYUNG ,  SHIN CHEOL HO ,  KIM BYOUNG HAK ,  LEE SEUNG SIK ,  CHOI SANG SUNG

IPC: H04B1/04 ,  H04B1/16 ,  H04L27/10

CPC classification number: H04L27/12 ,  H04L25/4902 ,  H04L25/0262 ,  H04L27/0008

Abstract: PURPOSE: A transmission and reception apparatus and method thereof are provided to create discontinuous interference signals by embodying variable data throughout without controlling a modulation parameter. CONSTITUTION: A data rate control unit outputs input data bit strings to a group unit according to target data rates(S710). The group unit groups the inputted data bit strings(S720). A first modulation unit modulates a part bit of a group in a FSK(Frequency Shift Keying) modulation method based on duty(S730). A second modulation unit modulates the other bits in PSK(Phase Shift Keying) modulation method(S740). A signal transmission unit creates transmission signals(S750).

Abstract translation: 目的：提供一种发送和接收装置及其方法，通过在不控制调制参数的情况下实现可变数据来产生不连续的干扰信号。 构成：数据速率控制单元根据目标数据速率将输入数据位串输出到组单元（S710）。 组单元对输入的数据位串进行分组（S720）。 第一调制单元基于占空比以FSK（频移键控）调制方式调制组的一部分位（S730）。 第二调制单元调制PSK（相移键控）调制方法中的其他位（S740）。 信号传输单元产生传输信号（S750）。

公开(公告)号：KR20100042133A

公开(公告)日：2010-04-23

申请号：KR20080101275

申请日：2008-10-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： CHO SANG IN ,  KANG KYU MIN ,  CHOI SANG SUNG

IPC: H04J11/00

CPC classification number: G06F17/142 ,  H04L27/2628 ,  H04L27/265

Abstract: PURPOSE: An apparatus and a method for executing a fourier transform is provided to reduce hardware capacity and power consumption of a fourier transform device by using a lookup table which is stored in advance instead of a butterfly operation. CONSTITUTION: A first stage part(310) outputs a first sequence including 32 complex values according to a search table which is stored in advance. A first rotation factor application part(320) outputs a second sequence including the 32 complex value. A second stage part(330) outputs a third sequence including 32 complex values. A third stage part(340) outputs a fourth sequence including 32 complex values. A second rotation factor application part(350) outputs a fifth sequence including the 32 complex value. A fourth stage part(360) outputs a sixth sequence including the 32 complex value.

Abstract translation: 目的：提供一种用于执行傅里叶变换的装置和方法，以通过使用预先存储的查找表而不是蝴蝶操作来降低傅里叶变换装置的硬件容量和功耗。 构成：第一阶段部分（310）根据预先存储的搜索表输出包括32个复数值的第一序列。 第一旋转因子应用部分（320）输出包括32个复数值的第二序列。 第二级部分（330）输出包括32个复数值的第三序列。 第三级部分（340）输出包括32个复数值的第四序列。 第二旋转因子应用部分（350）输出包括32个复数值的第五序列。 第四级部（360）输出包括32个复数值的第六序列。

公开(公告)号：KR20120071948A

公开(公告)日：2012-07-03

申请号：KR20100133694

申请日：2010-12-23

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE CHEOL HYO ,  NAM HONG SOON ,  LEE HYUNG SOO ,  CHOI SANG SUNG

IPC: H04B13/00 ,  H04L12/56

CPC classification number: H04W4/006 ,  H04L67/12 ,  H04Q2213/13196 ,  H04W84/18 ,  H04L69/08 ,  H04B13/005 ,  H04L69/16 ,  H04L69/18 ,  H04L69/24

Abstract: PURPOSE: A human body communication system, medium access control bridge, bridge apparatus, and operation method thereof are provided to reinforce the stability of communication by reducing restrictions on a transmission distance between apparatuses which have two different transmission methods. CONSTITUTION: A data traffic manager receives packets from a first human body related network(S101). A connection establishment manager confirms a connection establishment state for the packet(S113). The connection establishment manager confirms the receiver address of the packet through the connection establishment state. In case the receiver address of the packet belongs to a second human body related network, the connection establishment manger transmits the packet to a second human body related network through a second communication protocol(S119,S121).

Abstract translation: 目的：提供一种人体通信系统，媒体接入控制网桥，桥接设备及其操作方法，通过减少对具有两种不同传输方式的设备之间的传输距离的限制来增强通信的稳定性。 构成：数据流量管理器从第一人体相关网络接收数据包（S101）。 连接建立管理器确认分组的连接建立状态（S113）。 连接建立管理器通过连接建立状态确认分组的接收者地址。 在分组的接收者地址属于第二人体相关网络的情况下，连接建立管理者通过第二通信协议将分组发送到第二人体相关网络（S119，S121）。

公开(公告)号：KR20100026360A

公开(公告)日：2010-03-10

申请号：KR20080085334

申请日：2008-08-29

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： JANG SEUNG HYUN ,  PARK BONG HYUK ,  LEE SEUNG SIK ,  CHOI SANG SUNG

IPC: H03B5/00 ,  H04B1/16

CPC classification number: H04B1/71635

Abstract: PURPOSE: An apparatus and a method for reducing a leakage signal are provided to remove the leakage signal from a third frequency signal outputted from a frequency converter using a first frequency signal outputted from a local oscillator. CONSTITUTION: A local oscillator(101) generates a first frequency signal. A divider(102) generates a second frequency by dividing the first frequency signal. A frequency converter(103) generates a third frequency signal using the first and second frequency signals. A variable phase shifter(104) adjusts the phase of the first frequency signal. A variable gain amplifier(105) adjusts the gain of the output signal of the variable phase shifter. An operator(106) operates the output signal of the variable gain amplifier and the third frequency signal. A controller(108) controls the gain control rate of the variable gain amplifier and the phase control value of the variable phase shifter.

Abstract translation: 目的：提供一种用于减少泄漏信号的装置和方法，以使用从本地振荡器输出的第一频率信号从频率转换器输出的第三频率信号中去除泄漏信号。 构成：本地振荡器（101）产生第一频率信号。 分频器（102）通过划分第一频率信号来产生第二频率。 变频器（103）使用第一和第二频率信号产生第三频率信号。 可变移相器（104）调节第一频率信号的相位。 可变增益放大器（105）调节可变移相器的输出信号的增益。 操作者（106）操作可变增益放大器和第三频率信号的输出信号。 控制器（108）控制可变增益放大器的增益控制率和可变移相器的相位控制值。