公开(公告)号：KR1020140055322A

公开(公告)日：2014-05-09

申请号：KR1020120121973

申请日：2012-10-31

Applicant: 한국전자통신연구원

Inventor： 이희동 ,  정재호 ,  이광천

IPC: H03K5/156 ,  H03L7/081

CPC classification number: H03K3/017 ,  H03K5/1565

Abstract: Disclosed is a device for controlling a duty ratio of a signal. The device for controlling a duty ratio of a signal includes a clock control unit for generating a plurality of control signals for controlling a duty ratio based on an input signal; a half-period generating unit for generating first and second dividing signals which are reversed to each other by dividing a multiplied signal generated by using a delay signal generated by delaying an input signal in response to an input signal delay control signal; a comparing unit for comparing pulse widths of the first and second dividing signals based on a control signal provided from the clock control unit with each other to generate a delay control signal corresponding to the comparison result; a control voltage generating unit for outputting a delay control voltage corresponding to the delay control signal. Thus, a desired duty ratio of a signal may be set rapidly and exactly.

Abstract translation: 公开了一种用于控制信号占空比的装置。 用于控制信号的占空比的装置包括时钟控制单元，用于产生用于基于输入信号控制占空比的多个控制信号; 半周期生成单元，用于通过对通过对输入信号延迟控制信号进行延迟输入信号而产生的延迟信号而产生的相乘信号进行分割来产生彼此相反的第一和第二分割信号; 比较单元，用于根据从时钟控制单元提供的控制信号彼此比较第一和第二分频信号的脉冲宽度，以产生对应于比较结果的延迟控制信号; 控制电压产生单元，用于输出对应于延迟控制信号的延迟控制电压。 因此，可以快速且精确地设置信号的期望占空比。

公开(公告)号：KR1020140040328A

公开(公告)日：2014-04-03

申请号：KR1020120106240

申请日：2012-09-25

Applicant: 한국전자통신연구원

Inventor： 이희동 ,  이광천 ,  정재호

IPC: H03L7/095 ,  H03K5/13

CPC classification number: H03L7/095

Abstract: Disclosed are a lock detector and a clock generator including the same. The lock detector includes a counter unit which provides a count value by counting a mismatch section of a first signal and a second signal which are comparison signals obtained by comparing the phase of a reference signal with the phase of a comparison signal, and a lock detecting unit which outputs a lock detection signal based on a comparison result by comparing the count value with a reference value. Therefore, a lock state of a phase locked loop is quickly and accurately detected. [Reference numerals] (110) Reference signal providing unit; (170) Divider; (300) Lock detecting unit

Abstract translation: 公开了一种锁定检测器和包括该锁定检测器的时钟发生器。 锁定检测器包括计数器单元，其通过对作为比较信号的比较信号和比较信号的相位进行比较而获得的第一信号和第二信号的失配部分进行计数来提供计数值，以及锁定检测 单元，其通过将计数值与参考值进行比较，基于比较结果来输出锁定检测信号。 因此，快速准确地检测锁相环的锁定状态。 （附图标记）（110）参考信号提供单元; （170）分隔线 （300）锁定检测单元

公开(公告)号：KR1020130065293A

公开(公告)日：2013-06-19

申请号：KR1020110132090

申请日：2011-12-09

Applicant: 한국전자통신연구원

Inventor： 김준형 ,  정재호

IPC: H04L27/00 ,  H04L25/03

CPC classification number: H04L25/03 ,  H03M3/30

Abstract: PURPOSE: A transmitter using an interval delta-sigma modulation method and its signal generation method are provided to increase encoding efficiency or amplification efficiency. CONSTITUTION: A transmitter includes a polar converter (110), an interval delta-sigma modulator (120), a mixer (130) and a power amplifier (160). The polar converter separates an amplitude signal and a phase signal from a baseband signal. The interval delta-sigma modulator of 1-bit delta-sigma modulates or bypasses the amplitude signal according to a reference level. The mixer mixes the phase signal including an amplitude component and the envelope signal including a frequency component and transmits the phase signal to a DAC (140). The power amplifier amplifies the mixed signal. [Reference numerals] (110) Polar converter; (120) Interval delta-sigma modulator; (150) Up-converter; (160) Power amplifier; (AA) Status signal; (BB) Envelope signal; (CC) RF output

Abstract translation: 目的：提供使用间隔Δ-Σ调制方法的发射机及其信号发生方法，以提高编码效率或放大效率。 构成：发射机包括极化转换器（110），间隔Δ-Σ调制器（120），混频器（130）和功率放大器（160）。 极性转换器将幅度信号和相位信号与基带信号分离。 1位delta-sigma的间隔Δ-Σ调制器根据参考电平调制或旁路幅度信号。 混频器将包括振幅分量的相位信号和包括频率分量的包络信号相混合，并将相位信号发送到DAC（140）。 功率放大器放大混合信号。 （附图标记）（110）极转换器; （120）间隔Δ-Σ调制器; （150）上变频器; （160）功率放大器; （AA）状态信号; （BB）信封信号; （CC）RF输出

公开(公告)号：KR1020130063919A

公开(公告)日：2013-06-17

申请号：KR1020110130542

申请日：2011-12-07

Applicant: 한국전자통신연구원

Inventor： 이희동 ,  정재호

IPC: H03D13/00

CPC classification number: G01R23/00 ,  G01R23/005

Abstract: PURPOSE: A high-speed wideband frequency comparing apparatus is provided to rapidly compare a reference signal with a comparison target signal and to operate in a high speed or through broadband. CONSTITUTION: A pulse signal generating unit(12) outputs a reference signal and a comparison target signal in a pulse type signal. A capacitor(13) charges or discharges a voltage corresponding to the reference signal outputted from the pulse signal generating unit and outputs a reference voltage having a variable first frequency range. The capacitor charges or discharges the voltage corresponding to the comparison target signal outputted from the pulse signal generating unit and outputs a comparison target voltage having a variable second frequency range. A voltage comparing unit(14) outputs a comparison result signal by comparing the reference voltage with the comparison target voltage which are outputted from the capacitor. [Reference numerals] (11) Reference frequency generating unit; (12) Pulse signal generating unit; (13) Capacitor unit; (14) Voltage comparing unit; (15) Register unit; (16) Current source/sink unit; (17) Clock control unit

Abstract translation: 目的：提供一种高速宽带频率比较装置，用于将参考信号与比较目标信号进行快速比较，并以高速或宽带运行。 构成：脉冲信号生成部（12）以脉冲型信号输出基准信号和比较对象信号。 电容器（13）对从脉冲信号发生单元输出的参考信号进行充电或放电，并输出具有可变的第一频率范围的参考电压。 电容器对与从脉冲信号生成部输出的比较对象信号对应的电压进行充电或放电，输出具有可变的第二频率范围的比较对象电压。 电压比较单元（14）通过将参考电压与从电容器输出的比较目标电压进行比较来输出比较结果信号。 附图标记（11）参考频率发生单元; （12）脉冲信号发生单元; （13）电容器单元; （14）电压比较单元; （15）注册单位; （16）电流源/水槽单元; （17）时钟控制单元

公开(公告)号：KR1020130063774A

公开(公告)日：2013-06-17

申请号：KR1020110130319

申请日：2011-12-07

Applicant: 한국전자통신연구원

Inventor： 오정훈 ,  김준형 ,  정재호 ,  정현규

IPC: H03F1/32

CPC classification number: H03F3/245 ,  G06F1/0307 ,  H03F1/3247 ,  H03F3/19 ,  H03F2201/3212 ,  H03F2201/3233 ,  H04L27/368

Abstract: PURPOSE: A digital predistortion apparatus and a predistortion method thereof are provided to supply high linearity while reducing consumption of resources. CONSTITUTION: A predistortion compensating lookup table(110) supplies an output value to which an inverse function having a transfer characteristic of a power amplifier(150) applied according to the level of an input signal. A function generator(120) refers to a predistorted value supplied from the predistortion compensating lookup table or two pairs of input and output and supplies the predistorted value having higher accuracy. A DPD(Digital Predistortion) control unit(130) passes through an ADC(Analog to Digital Converter)(170) from the predistorted value outputted by the function generator and the power amplifier, refers to a feedback signal and updates the predistortion compensating lookup table. A DAC(Digital to Analog Converter)(140) converts the predistorted value of the input signal outputted by a DPD processing part(110-130) into an analog signal. [Reference numerals] (110) Predistortion compensating lookup table; (120) Function generator; (130) DPD control unit; (150) Power amplifier; (AA) Lookup table update; (BB) DPD processor; (CC) Feedback signal; (DD) Antenna output

Abstract translation: 目的：提供数字预失真装置及其预失真方法，以提供高线性度，同时减少资源消耗。 构成：预失真补偿查找表（110）根据输入信号的电平提供具有功率放大器（150）的转移特性的反函数的输出值。 函数发生器（120）是指从预失真补偿查找表提供的预失真值或两对输入和输出，并提供具有较高精度的预失真值。 DPD（数字预失真）控制单元（130）通过ADC（模数转换器）（170）从功能发生器和功率放大器输出的预失真值中引用反馈信号并更新预失真补偿查找表 。 DAC（数模转换器）（140）将由DPD处理部（110-130）输出的输入信号的失真值转换为模拟信号。 （附图标记）（110）预失真补偿查找表; （120）函数发生器; （130）DPD控制单元; （150）功率放大器; （AA）查找表更新; （BB）DPD处理器; （CC）反馈信号; （DD）天线输出

公开(公告)号：KR1020130058293A

公开(公告)日：2013-06-04

申请号：KR1020110124217

申请日：2011-11-25

Applicant: 한국전자통신연구원

Inventor： 현석봉 ,  박봉혁 ,  최윤호 ,  정재호

IPC: H04B1/10 ,  H04B7/04

CPC classification number: H03F3/45179 ,  H03F3/72 ,  H03F2200/294 ,  H03F2203/45302 ,  H03F2203/45394 ,  H03F2203/7236 ,  H04B1/10

Abstract: PURPOSE: A high-frequency receiver is provided to eliminate an out-of-band interference signal and an interference signal without an SAW(Surface Acoustic Wave) filter. CONSTITUTION: An LNA(Low Noise Amplifier)(120) amplifies signals received through an antenna. A second intermodulation elimination unit(130) eliminates second intermodulation or an out-of-band interference signal included in a signal outputted from the LNA. A passive mixer unit(140) converts the frequency of a signal outputted from the second intermodulation elimination unit. A low pass filter unit(150) eliminates an interference signal or the out-of-band interference signal included in a signal outputted from the passive mixer unit. The low pass filter unit transmits a signal in which the out-of-band interference signal or the interference signal is eliminated to a TIA(Trans-Impedance Amplifier). [Reference numerals] (130) Second intermodulation elimination unit; (140) Passive mixer unit; (150) Low pass filter unit

Abstract translation: 目的：提供高频接收机，以消除带外干扰信号和无SAW（表面声波）滤波器的干扰信号。 构成：LNA（低噪声放大器）（120）放大通过天线接收的信号。 第二互调消除单元（130）消除了从LNA输出的信号中包括的第二互调或带外干扰信号。 无源混频器单元（140）转换从第二互调消除单元输出的信号的频率。 低通滤波器单元（150）消除了从无源混频器单元输出的信号中包含的干扰信号或带外干扰信号。 低通滤波器单元将去除了带外干扰信号或干扰信号的信号发送到TIA（反阻抗放大器）。 （附图标记）（130）第二互调消除单元; （140）无源混频器单元; （150）低通滤波器单元

公开(公告)号：KR101201198B1

公开(公告)日：2012-11-15

申请号：KR1020080127722

申请日：2008-12-16

Applicant: 한국전자통신연구원

Inventor： 김준형 ,  이광천 ,  조권도 ,  정재호

IPC: H04B1/04 ,  H03F3/24

CPC classification number: H04L27/361

Abstract: 본 발명은 신호를 증폭하는 장치 및 방법과 이를 이용한 무선 송신 장치에 관한 것으로서, 넓은 주파수 대역에서도 고효율로 신호를 증폭하고자 한다. 이를 위하여 본 발명에 따른 신호 증폭 장치는 신호를 극좌표로 변환하여 포락선 신호 및 위상 신호를 출력하는 극좌표 변환부, 포락선 신호를 다중 레벨로 양자화하여 다중 레벨 양자화 신호를 출력하는 다중 레벨 양자화부, 다중 레벨 양자화 신호를 이용하여 증폭 스테이트를 제어하는 증폭 스테이트 제어부, 및 제어된 증폭 스테이트에 따라 위상 신호를 증폭하는 전력 증폭부를 포함한다.
광대역 증폭, 극좌표(Polar), 델타-시그마(delta-sigma) 변환, 스위칭 전력증폭기

公开(公告)号：KR1020120070054A

公开(公告)日：2012-06-29

申请号：KR1020100131453

申请日：2010-12-21

Applicant: 한국전자통신연구원 ,  중앙대학교 산학협력단

Inventor： 박봉혁 ,  정재호 ,  박준영 ,  류혁 ,  백동현

IPC: H03B5/12

CPC classification number: H03B27/00 ,  H03B2200/0078 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1296

Abstract: PURPOSE: A quadrature-phase voltage controlled oscillator is provided to reduce area consumption by forming a structure of using one transformer without using individual inductors. CONSTITUTION: A first voltage controlled oscillator(110) is connected between a power terminal and a first bias terminal to generate first and second oscillation signals. A second voltage controlled oscillator(120) is connected between the power terminal and a second bias terminal to generate third and fourth oscillation signals having 90° phase difference in the first and second oscillation signals. The first and second voltage controlled oscillators can be formed into the same configuration. A biasing transformer(130) connects the first voltage controlled oscillator and the second voltage controlled oscillator to a ground terminal. The biasing transformer is connected between the first bias terminal and the ground terminal of the first voltage controlled oscillator. The biasing transformer is connected between the second bias terminal and the ground terminal of the second voltage controlled oscillator.

Abstract translation: 目的：提供正交相压控振荡器，通过在不使用单独电感器的情况下形成使用一个变压器的结构来减少面积消耗。 构成：第一压控振荡器（110）连接在电源端子和第一偏置端子之间以产生第一和第二振荡信号。 第二压控振荡器（120）连接在电源端子和第二偏置端子之间，以产生在第一和第二振荡信号中具有90°相位差的第三和第四振荡信号。 第一和第二压控振荡器可以形成为相同的配置。 偏置变压器（130）将第一压控振荡器和第二压控振荡器连接到接地端子。 偏置变压器连接在第一压控振荡器的第一偏置端子和接地端子之间。 偏置变压器连接在第二偏压端子和第二压控振荡器的接地端子之间。

公开(公告)号：KR1020120037869A

公开(公告)日：2012-04-20

申请号：KR1020110027734

申请日：2011-03-28

Applicant: 한국전자통신연구원

Inventor： 현석봉 ,  최윤호 ,  김진경 ,  정재호 ,  박봉혁

IPC: H04W76/02 ,  H04W12/06 ,  H04B7/24

CPC classification number: H04W76/10 ,  H04B7/24 ,  H04W12/06

Abstract: PURPOSE: A location based pairing method of a wideband wireless communication device and an apparatus thereof are provided to simply perform pairing between devices without a PIN code input in a wideband wireless communication system. CONSTITUTION: A first wireless device and a second wireless device performs synchronization operation(110). The second wireless device transmits a distance measuring signal to the first wireless device(120). The first wireless device estimates distance with the second wireless device(130). The first and second wireless devices perform pairing in case the second wireless device is inside a pairing area(140,150).

Abstract translation: 目的：提供宽带无线通信设备及其装置的基于位置的配对方法，以便在宽带无线通信系统中不进行PIN码输入的情况下简单地执行设备之间的配对。 构成：第一无线设备和第二无线设备执行同步操作（110）。 第二无线设备向第一无线设备（120）发送距离测量信号。 第一无线设备估计与第二无线设备（130）的距离。 第一无线设备和第二无线设备在第二无线设备在配对区域内（140,150）的情况下执行配对。

公开(公告)号：KR1020110071731A

公开(公告)日：2011-06-29

申请号：KR1020090128372

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 조권도 ,  정재호 ,  김준형

IPC: G06F17/30 ,  G06F17/26 ,  G06F17/27

Abstract: PURPOSE: An information searching method using the search word is provided to reduce the number of the searched information by adding the additional search condition to the information search using a initial sound. CONSTITUTION: A search word is comprised of the initial sound of the character and the final sound indicator indicating the existence of the final sound. The word corresponding to the initial sound of the character and the final sound indicator is searched.

Abstract translation: 目的：提供使用搜索词的信息搜索方法，通过使用初始声音将附加搜索条件添加到信息搜索中来减少搜索信息的数量。 构成：搜索词由字符的初始声音和最终声音指示符组成，表示最终声音的存在。 搜索与字符的初始声音和最终声音指示符相对应的字。