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公开(公告)号：KR1020170108241A
公开(公告)日：2017-09-27
申请号：KR1020160031810
申请日：2016-03-17
Applicant: 한국전자통신연구원
Abstract: 전력증폭기의입력신호와출력신호의차이값에따라포락선신호에적용되는증폭이득을결정하는신호처리장치가제공된다. 상기신호처리장치는전력증폭기의입력신호및 출력신호사이의진폭크기의차이값을계산하여이득제어신호를생성하는계산부및 입력된상기이득제어신호에따라상기입력신호의포락선신호(envelope signal)에적용되는이득(gain)을결정하고, 상기포락선신호의크기를조정하는증폭부를포함할수 있다.
Abstract translation: 提供了一种信号处理设备，用于根据功率放大器的输入信号和输出信号之间的差值来确定将被应用于包络信号的放大增益。 信号处理单元包括计算单元，用于计算功率放大器的输入信号和输出信号之间的振幅大小之间的差值，以根据输入增益控制信号生成增益控制信号和输入信号的包络信号。 以及放大单元，用于确定所施加的增益并调整包络信号的幅度。
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公开(公告)号：KR1020160038547A
公开(公告)日：2016-04-07
申请号：KR1020140131765
申请日：2014-09-30
Applicant: 한국전자통신연구원
IPC: H04L25/02 , H04B10/2575
CPC classification number: H04B10/25753 , H04B10/25759
Abstract: 본발명은 RoF(Radio over Fiber) 기술에사용될수 있는중앙제어국장치, 원격기지국장치, 및이들의통신방법에관한것이다. 본발명의다양한실시예는, 아날로그신호를중간주파수의반송파를가진신호로변환하고이것을디지털신호로변환하여원격제어국장치로전송할수 있는중앙제어국장치및 통신방법을제공할수 있다. 또한, 본발명의다양한실시예는, 중간주파수의반송파를가진디지털신호를필터링함으로써간이하게대응되는아날로그신호를이끌어낼 수있는원격기지국장치및 통신방법을제공할수 있다.
Abstract translation: 本发明涉及一种可用于无线电光纤（RoF）技术的中央控制站设备，远程基站设备及其通信方法。 本发明的各种实施例可以提供一种中央控制站装置和通信方法，其允许将模拟信号转换为具有中频载波的信号，并将该信号转换为数字信号以进行传输 到远程控制站设备。 此外，本发明的各种实施例可以提供一种远程基站装置和通信方法，通过对具有中频的载波的数字信号进行滤波，以简单的方式允许对应的模拟信号。
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公开(公告)号：KR1020150089296A
公开(公告)日：2015-08-05
申请号：KR1020140009753
申请日：2014-01-27
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2627 , H03F1/3247 , H03F3/24 , H04L25/4902 , H04L25/4923 , H04L27/20 , H04L27/368
Abstract: 본발명은입력신호를변조하여셋 이상의논리레벨을갖는제 1 변조신호를생성하기위한제 1 변조유닛, 조절신호에기초하여제 1 변조신호가갖는셋 이상의논리레벨각각에대응하는전기특성값 중적어도하나를조절하여조절된제 1 변조신호를생성하는특성조절유닛, 캐리어신호에기초하여조절된제 1 변조신호를변조하여제 2 변조신호를생성하는제 2 변조유닛, 제 2 변조신호의전력을증폭시켜증폭된제 2 변조신호를출력하는전력증폭유닛, 및제 1 변조신호가갖는셋 이상의논리레벨각각에대응하는전기특성값 및증폭된제 2 변조신호가갖는셋 이상의논리레벨각각에대응하는전기특성값에기초하여조절신호를생성하는조절연산유닛을포함하는송신장치와그것의신호전송방법을제공한다. 본발명에따르면, 전력증폭유닛에의해증폭된변조신호의선형성이유지될수 있다.
Abstract translation: 本发明提供一种发送装置及其发送信号的方法。 本发明的发送装置包括：第一调制单元，用于通过调制输入信号来产生具有三个或更多个逻辑电平的第一调制信号; 特征调整单元，用于通过基于所述调制信号调整与包括在所述第一调制信号中的每个逻辑电平相对应的电特性值中的至少一个来产生所述经调整的第一调制信号; 第二调制单元，用于通过调制基于载波信号调整的第一调制信号来产生第二调制信号; 电放大单元，用于通过放大第二调制信号来输出放大的第二调制信号; 以及调制计算单元，用于基于与包括在第一调制信号中的每个逻辑电平相对应的电特性值和对应于包括在放大的第二调制信号中的每个逻辑电平的电特性值，产生调制信号。 根据本发明，可以保持由放电单元放大的调制信号的线性度。
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公开(公告)号：KR1020120054368A
公开(公告)日：2012-05-30
申请号：KR1020100115713
申请日：2010-11-19
Applicant: 한국전자통신연구원
CPC classification number: H03G1/0088
Abstract: PURPOSE: A variable gain amplifier having a fixed band width is provided to reduce influence on output voltage swing by connecting a variable current source to an input node. CONSTITUTION: An operational amplifier(110) amplifies a voltage applied to an non-inverted input terminal and an inverted input terminal. A variable feedback impedance part(120) is connected between the inverted input terminal and an output terminal of the operational amplifier. A compensation impedance value of a variable compensation impedance part(130) selectively connects each compensation impedance element and each MOS(Metal Oxide Semiconductor) transistor between the inverted input terminal of the operational amplifier and the earth. A variable current source(140) is connected to the inverted input terminal of the operational amplifier. A control circuit(150) includes a look-up table having information about gain control.
Abstract translation: 目的：提供具有固定带宽的可变增益放大器，以通过将可变电流源连接到输入节点来减小对输出电压摆幅的影响。 构成：运算放大器（110）放大施加到非反相输入端子和反相输入端子的电压。 可变反馈阻抗部分（120）连接在反相输入端和运算放大器的输出端之间。 可变补偿阻抗部分（130）的补偿阻抗值选择性地连接运算放大器的反相输入端和地之间的每个补偿阻抗元件和每个MOS（金属氧化物半导体）晶体管。 可变电流源（140）连接到运算放大器的反相输入端。 控制电路（150）包括具有关于增益控制的信息的查找表。
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公开(公告)号：KR100912544B1
公开(公告)日：2009-08-18
申请号：KR1020070095259
申请日：2007-09-19
Applicant: 한국전자통신연구원
IPC: H04B10/035 , H04B10/2581 , H04J14/02
Abstract: 본 발명은 루프백방식의 파장분할다중방식 수동형 광가입자 시스템에 관한 것으로, 하향 신호들을 하향 광 SCM 신호들로 변환한 후 파장다중화하여 전송하거나, 파장다중화된 상향 광 OOK 신호를 파장역다중화, 수신 및 복조하여 상향 신호들로 변환하는 중앙기지국; 상기 파장다중화된 하향 광 SCM 신호를 수신하여 상기 하향 광 SCM 신호들로 파장역다중화한 후 전송하거나, 상향 광 OOK 신호들을 수신하여 파장다중화한 후 전송하는 지역기지국; 및 상기 하향 광 SCM 신호들을 제1 및 제2 광 SCM 신호들로 분기한 후, 상기 제1 광 SCM 신호들은 상기 하향 신호들로 변환하고, 상기 제2 광 SCM 신호들을 이용하여 상기 상향 신호들을 상기 광 OOK 신호들로 변조하여 상기 지역기지국로 전송하는 가입자 접속 장치들을 포함하여 구성되며, 이에 의하여 항상 안정적인 전송 품질을 보장하면서도 시스템 구축 비용을 감소시킬 수 있도록 한다.
WDM-PON, SCM, ROSA-
Patent Agency Ranking
公开(公告)号：KR1020090062460A
公开(公告)日：2009-06-17
申请号：KR1020070129726
申请日：2007-12-13
Applicant: 한국전자통신연구원
IPC: H03F1/26
CPC classification number: H03F1/26 , H03F1/223 , H03F2200/294 , H03F2200/297 , H04B1/44
Abstract: A low noise amplifier and a signal processing method thereof are provided to reduce interference of an ultra wideband transceiving system by reducing a signal except a used frequency band by selecting a capacitor value of a capacitor bank. A capacitor bank(200) includes a plurality of capacitors and outputs the ultra wideband signal by passing through the selected specific capacitor among the plurality of capacitors. A transceiving switch unit(100) passes through the specific frequency band of the ultras wideband signal outputted through an inductor connected to the capacitor bank and outputs the frequency. A common gate amplifier(300) passes through the ultra wideband signal outputted from the transceiving switch without the reflection, amplifies the ultra wideband signal of the high frequency band and the low frequency band, and outputs the amplified signal. A cascade amplifier(400) amplifies the intermediate frequency band of the ultra wideband signal outputted from the common gate amplifier and outputs the amplified result.
Abstract translation: 提供了一种低噪声放大器及其信号处理方法，通过选择电容器组的电容值，通过减少除使用频带之外的信号来减少超宽带收发系统的干扰。 电容器组（200）包括多个电容器，并通过在多个电容器中通过所选择的特定电容器来输出超宽带信号。 收发开关单元（100）通过通过连接到电容器组的电感器输出的超宽带信号的特定频带，并输出频率。 公共栅极放大器（300）通过从收发开关输出的超宽带信号而没有反射，放大高频带和低频带的超宽带信号，并输出放大信号。 级联放大器（400）放大从公共栅极放大器输出的超宽带信号的中频带，并输出放大的结果。
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公开(公告)号：KR1020090031083A
公开(公告)日：2009-03-25
申请号：KR1020070096921
申请日：2007-09-21
Applicant: 한국전자통신연구원
IPC: H03F1/22
CPC classification number: H03F1/223 , H03B5/1212 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03F1/26 , H03F3/19 , H03F2200/108 , H03F2200/372 , H03F2200/451
Abstract: A cascode amplifier and a differential cascode voltage control oscillator are provided to reduce a phase noise by applying a scheme of improving quality factor having a negative conductance. A cascode amplifier includes a first and second capacitor(C101,C102) and a first and a second transistor(NMOS101, NMOS102). The first and the second capacitor have a negative conductance, and the first and the second transistor amplifies input signal, which is outputted to an output terminal. The first and the second transistor and the first and the second capacitor are connected in cascade. The first capacitor is between the drain and source of the first transistor, and the second capacitor is between the gate and the source of the first transistor.
Abstract translation: 提供共源共栅放大器和差分共源共栅电压控制振荡器以通过应用改进具有负电导的品质因数的方案来减小相位噪声。 共射共栅放大器包括第一和第二电容器（C101，C102）和第一和第二晶体管（NMOS101，NMOS102）。 第一和第二电容器具有负电导，并且第一和第二晶体管放大输出到输出端的输入信号。 第一和第二晶体管和第一和第二电容器级联连接。 第一电容器位于第一晶体管的漏极和源极之间，第二电容器位于第一晶体管的栅极和源极之间。
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公开(公告)号：KR100881266B1
公开(公告)日：2009-02-05
申请号：KR1020070128043
申请日：2007-12-11
Applicant: 한국전자통신연구원
IPC: G11C7/00
CPC classification number: H03G3/30 , H03F3/04 , H03F3/45 , H03K19/0175
Abstract: A CMOS active load circuit for a gain amplifier is provided to compensate for an error, which is generated by a circuit malfunction that is caused in processes, and reduce development time in compliance with a specification of various applications and a channel length of CMOS. A source follower(102) functions as a buffer for an output signal of a gain amplifier. The first MOSFET(106) is connected to the source follower output and operates in the triode region. In the first MOSFET, resistance from a source terminal to a drain terminal is controlled by a first voltage. A second MOSFET(108) also operates in the triode region. In the second MOSFET, resistance from a source terminal to a drain terminal is controlled by a second voltage. A negative feedback signal is applied to a common source amplifier(112). The common source amplifier has a gate to receive a signal from a connection node between the first and second MOSFETs.
Abstract translation: 提供了一种用于增益放大器的CMOS有源负载电路，用于补偿由于过程中引起的电路故障而产生的错误，并且根据各种应用的规范和CMOS的通道长度来缩短开发时间。 源极跟随器（102）用作增益放大器的输出信号的缓冲器。 第一个MOSFET（106）连接到源极跟随器输出端并在三极管区域工作。 在第一MOSFET中，从源极端子到漏极端子的电阻由第一电压控制。 第二MOSFET（108）也在三极管区域中工作。 在第二MOSFET中，从源极端子到漏极端子的电阻由第二电压控制。 负反馈信号被施加到公共源放大器（112）。 公共源极放大器具有用于接收来自第一和第二MOSFET之间的连接节点的信号的栅极。
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公开(公告)号：KR1020080053130A
公开(公告)日：2008-06-12
申请号：KR1020060125135
申请日：2006-12-08
Applicant: 한국전자통신연구원
CPC classification number: H04L27/3854 , H04L27/18 , H04L2027/0069
Abstract: An apparatus and a method for recovering a carrier in a baseband receiver of a QAM(Quadrature Amplitude Modulation) system of a high order are provided to maintain a capturing time uniformly although a carrier frequency offset increases by operating a carrier recovering device having a wide frequency recovering range and a fast capturing time. An apparatus for recovering a carrier in a baseband receiver of a QAM(Quadrature Amplitude Modulation) system of a high order includes a phase detection unit(250), a polarity detection unit(230), a frequency detection unit(240), and a fixed signal detection unit(260). The phase detection unit detects a phase offset of a baseband signal of which a phase is changed. The base band signal is received to a carrier recovering device. The polarity detection unit detects a polarity of a selected symbol used for recovering the carrier. The polarity detection unit detects a phase offset of the selected symbol based on the polarity. The frequency detection unit detects the frequency offset based on an output of the polarity detection unit. The fixed signal detection unit detects whether the phase offset and the frequency offset of the carrier are removed below a predetermined reference value. The fixed signal detection unit switches one of the output of the phase detection unit, the output of the polarity detection unit, and the output of the frequency detection unit to be used for capturing the carrier.
Abstract translation: 提供了一种用于恢复高阶QAM（正交幅度调制）系统的基带接收机中的载波的装置和方法，以便通过操作具有宽频率的载波恢复装置来增加载波频率偏移，从而保持捕获时间均匀 恢复范围和快速捕获时间。 用于恢复高阶QAM（正交幅度调制）系统的基带接收机中的载波的装置包括相位检测单元（250），极性检测单元（230），频率检测单元（240）和 固定信号检测单元（260）。 相位检测单元检测相位改变的基带信号的相位偏移。 基带信号被接收到载波恢复装置。 极性检测单元检测用于恢复载体的所选符号的极性。 极性检测单元根据极性检测所选符号的相位偏移。 频率检测单元基于极性检测单元的输出检测频率偏移。 固定信号检测单元检测载波的相位偏移和频率偏移是否被移除低于预定参考值。 固定信号检测单元切换相位检测单元的输出，极性检测单元的输出和用于捕获载波的频率检测单元的输出中的一个。
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公开(公告)号：KR1020070059922A
公开(公告)日：2007-06-12
申请号：KR1020060085889
申请日：2006-09-06
Applicant: 한국전자통신연구원
CPC classification number: G06F3/05 , G06F13/385 , G06F13/4291
Abstract: A device and a method for collecting digital conversion data of an analog signal using a serial bus are provided to collect the digital data converted from the monitored analog signals through the serial bus by converting/transmitting the analog signal of the selected address or selecting, converting, and transmitting one of the monitored analog signals with a multiplexer. The multiplexer(311) receives the analog signals and outputs only one analog signal by a control signal. An ADC(Analog/Digital Converter)(313) converts the outputted analog signal into a digital signal. The first controller(315) generates/outputs the control signal to the multiplexer and controls operation of the ADC. A bus controller(319) outputs the digital signal through the serial bus(320). The first controller includes the first address setting part(316) storing a unique address of the device and an activation determiner(317) determining determines whether activation information received through the serial bus is agreed to the unique address of the device. The activation determiner activates the bus controller if the unique address is agreed and deactivates the bus controller if not.
Abstract translation: 提供使用串行总线收集模拟信号的数字转换数据的装置和方法，用于通过转换/发送所选地址的模拟信号来收集从所监视的模拟信号转换的数字数据，或者选择转换 并且用多路复用器发送所监视的模拟信号之一。 复用器（311）接收模拟信号，并通过控制信号仅输出一个模拟信号。 ADC（模拟/数字转换器）（313）将输出的模拟信号转换为数字信号。 第一控制器（315）产生/输出控制信号到多路复用器并控制ADC的操作。 总线控制器（319）通过串行总线（320）输出数字信号。 第一控制器包括存储设备的唯一地址的第一地址设置部分（316）和确定是否确定通过串行总线接收到的激活信息是否符合设备的唯一地址的激活确定器（317）。 如果同意唯一地址，激活确定器激活总线控制器，如果不是，则激活总线控制器。
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