公开(公告)号：KR1020020058541A

公开(公告)日：2002-07-12

申请号：KR1020000086651

申请日：2000-12-30

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  권종기 ,  김귀동 ,  정희범

IPC: H03H11/02

CPC classification number: H03H11/04 ,  H03H9/46 ,  H03H11/0427 ,  H03H11/1291

Abstract: PURPOSE: An automatic frequency tuning circuit for correcting an influence of offset for transistor conductance-capacitor filter is provided to control correctly a band frequency of a filter by correcting offset of a tuning circuit. CONSTITUTION: A reference power supply portion(100) provides reference power. A Gm amplifier(5) has. The first integrator(200) has a Gm amplifier(5) having the same as a Gm value of a controlled filter in order to generate periodically charge voltage and discharge voltage proportional to offset of the Gm amplifier(5) in response to the reference power. The second integrator(300) has a Gm amplifier(16) having the same as a Gm value of a controlled filter in order to generate periodically charge voltage and proportional to offset of the Gm amplifier(16) in response to the output voltage(Vo1) of the first integrator(200) and discharge voltage proportional to offset of the Gm amplifier(16) in response to the reference power. A sampling portion(400) samples periodically the output voltage of the second integrator(300). An output portion(500) outputs the sampled voltage of the sampling portion(400) as a tuning signal and feed back the tuning signal to the Gm amplifier(5) in order to control a transfer conductance value of the Gm amplifier(5).

Abstract translation: 目的：提供一种用于校正晶体管电导滤波器的偏移影响的自动频率调谐电路，通过校正调谐电路的偏移来正确控制滤波器的频带频率。 构成：参考电源部分（100）提供参考功率。 一个Gm放大器（5）。 第一积分器（200）具有与受控滤波器的Gm值相同的Gm放大器（5），以便响应于参考功率产生与Gm放大器（5）的偏移成比例的周期性充电电压和放电电压 。 第二积分器（300）具有与受控滤波器的Gm值相同的Gm放大器（16），以便响应于输出电压（Vo1）产生周期性充电电压并与Gm放大器（16）的偏移成比例 ）和与Gm放大器（16）的偏移成正比的放电电压。 采样部分（400）周期性地对第二积分器（300）的输出电压进行采样。 输出部分（500）输出采样部分（400）的采样电压作为调谐信号，并将调谐信号反馈到Gm放大器（5），以便控制Gm放大器（5）的转移电导值。

公开(公告)号：KR100456238B1

公开(公告)日：2004-11-09

申请号：KR1020010071308

申请日：2001-11-16

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  조민형 ,  권종기 ,  김경수

IPC: H03D7/12

Abstract: PURPOSE: A frequency up converting mixer for use in a complementary metal oxide semiconductor(CMOS) device is provided to increase the size of the input signal by constructing a negative feedback loop circuit at the input block inputted thereto an input signal and improving the linearity of the input signal. CONSTITUTION: A frequency up converting mixer for use in a complementary metal oxide semiconductor(CMOS) device includes a first device constructed by a negative feedback loop method for increasing the linearity of the positive voltage of input signal, a second device constructed by a negative feedback loop method for increasing the linearity of the negative voltage of the input signal and a mixing block for mixing the signal outputted from the first and the second devices and the carrier signal.

Abstract translation: 目的：提供一种用于互补金属氧化物半导体（CMOS）器件的上变频混频器，通过在输入到输入信号的输入模块上构造负反馈回路电路来增加输入信号的尺寸，并提高输入信号的线性度 输入信号。 用于互补金属氧化物半导体（CMOS）器件的上变频混频器包括由负反馈环路方法构成的用于增加输入信号正电压线性度的第一器件，由负反馈构成的第二器件 用于增加输入信号的负电压的线性的环路方法和用于混合从第一和第二设备输出的信号和载波信号的混合块。

公开(公告)号：KR100373322B1

公开(公告)日：2003-02-25

申请号：KR1020000086651

申请日：2000-12-30

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  권종기 ,  김귀동 ,  정희범

IPC: H03H11/02

Abstract: PURPOSE: An automatic frequency tuning circuit for correcting an influence of offset for transistor conductance-capacitor filter is provided to control correctly a band frequency of a filter by correcting offset of a tuning circuit. CONSTITUTION: A reference power supply portion(100) provides reference power. A Gm amplifier(5) has. The first integrator(200) has a Gm amplifier(5) having the same as a Gm value of a controlled filter in order to generate periodically charge voltage and discharge voltage proportional to offset of the Gm amplifier(5) in response to the reference power. The second integrator(300) has a Gm amplifier(16) having the same as a Gm value of a controlled filter in order to generate periodically charge voltage and proportional to offset of the Gm amplifier(16) in response to the output voltage(Vo1) of the first integrator(200) and discharge voltage proportional to offset of the Gm amplifier(16) in response to the reference power. A sampling portion(400) samples periodically the output voltage of the second integrator(300). An output portion(500) outputs the sampled voltage of the sampling portion(400) as a tuning signal and feed back the tuning signal to the Gm amplifier(5) in order to control a transfer conductance value of the Gm amplifier(5).

Abstract translation: 目的：提供一种用于校正晶体管电导电容器滤波器的偏移影响的自动频率调谐电路，以通过校正调谐电路的偏移来正确地控制滤波器的频带频率。 构成：参考电源部分（100）提供参考功率。 一个Gm放大器（5）具有。 第一积分器（200）具有与受控滤波器的Gm值相同的Gm放大器（5），以响应于参考功率产生周期性的充电电压和与Gm放大器（5）的偏移成比例的放电电压 。 第二积分器（300）具有与受控滤波器的Gm值相同的Gm放大器（16），以便响应于输出电压（Vo1）产生周期性充电电压并与Gm放大器（16）的偏移成比例 ）以及响应于所述参考功率而放电的电压，所述放电电压与所述Gm放大器（16）的偏移量成比例。 采样部分（400）周期性地采样第二积分器（300）的输出电压。 输出部分（500）输出采样部分（400）的采样电压作为调谐信号，并将调谐信号反馈到Gm放大器（5），以便控制Gm放大器（5）的传输电导值。

公开(公告)号：KR100450755B1

公开(公告)日：2004-10-01

申请号：KR1020020031287

申请日：2002-06-04

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  조민형 ,  권종기

IPC: H03F3/45

Abstract: PURPOSE: A transconductance amplifier having high linearity and high gain is provided to maintain the linearity without increasing the current by forming an input terminal with NMOS transistors and PMOS transistors. CONSTITUTION: A transconductance amplifier having high linearity and high gain includes the first and the second input terminals and the first and the second output terminals. Input signals are inputted into a plurality of NMOS transistors(mn1-mn6) and a plurality of PMOS transistors(mp1-mp6) of the first and the second input terminals. The input signals received from the first and the second input terminals are amplified as much as the gain proportional to the conductance of the NMOS transistors(mn1-mn6) and the PMOS transistors(mp1-mp6). The amplified input signals are outputted to the first and the second output terminals.

Abstract translation: 目的：提供具有高线性度和高增益的跨导放大器，以通过形成具有NMOS晶体管和PMOS晶体管的输入端子来保持线性而不增加电流。 组成：具有高线性度和高增益的跨导放大器包括第一和第二输入端以及第一和第二输出端。 输入信号被输入到第一和第二输入端的多个NMOS晶体管（mn1-mn6）和多个PMOS晶体管（mp1-mp6）中。 从第一和第二输入端子接收的输入信号被放大与与NMOS晶体管（mn1-mn6）和PMOS晶体管（mp1-mp6）的电导成比例的增益。 放大的输入信号被输出到第一和第二输出端子。

公开(公告)号：KR1020020053978A

公开(公告)日：2002-07-06

申请号：KR1020000082253

申请日：2000-12-26

Applicant: 한국전자통신연구원

Inventor： 한경태 ,  임인기 ,  어익수 ,  서혜주 ,  김경수 ,  정희범 ,  조한진

IPC: H04B1/16

CPC classification number: H04L5/06 ,  H04B1/7115

Abstract: PURPOSE: A carrier separating apparatus and method of a multi-carrier radio communication receiving system are provided to reduce the number of quantizers by separating carriers after its quantization, and easily control power of a carrier by equalizing a frequency power of each carrier by rendering the number of frequency down adjustments to be the same. CONSTITUTION: An internal oscillation(NCO) block(210) generates internal multi-carriers in order to separate the multi-carriers from a received signal. A multiplier block(240) down-converts each of the multi-carriers generated by the internal oscillation(NCO) block(210) and moves them to a frequency of 0. A low frequency band pass filter block(250) filters each carrier moved to the frequency of 0 by the multiplier block(240) to a low frequency pass band to delete information of an unnecessary band and provides its own carrier information as an input of a rake receiver(300).

Abstract translation: 目的：提供一种多载波无线电通信接收系统的载波分离装置和方法，通过在量化后分离载波来减少量化器的数量，并且通过使每个载波的频率功率均衡，容易地控制载波的功率 频率下降调整数相同。 构成：内部振荡（NCO）块（210）产生内部多载波，以便将多载波与接收信号分离。 乘法器块（240）对由内部振荡（NCO）块（210）产生的多个载波进行下变频，并将它们移动到0的频率。低频带通滤波器块（250）对每个载波移动 通过乘法器块（240）将频率为0的频率转换为低频通带，以删除不需要的频带的信息，并提供其自己的载波信息作为前置雷达接收机（300）的输入。

公开(公告)号：KR100462467B1

公开(公告)日：2004-12-17

申请号：KR1020010085836

申请日：2001-12-27

Applicant: 한국전자통신연구원

Inventor： 윤용식 ,  조민형 ,  서혜주 ,  권종기 ,  김경수

IPC: H03G3/00

CPC classification number: H03G1/0017 ,  H03F3/45197 ,  H03F2203/45504 ,  H03F2203/45726 ,  H03G1/007 ,  H03G7/00

Abstract: A variable gain amplifier (VGA) circuitry for implementing gain as a pseudo exponential function by using the linear area of metal oxide semiconductor field effect transistors (MOSFETs) is provided. The VGA circuitry includes a fixed resistor and a variable resistor, which is connected in serial to the fixed resistor and implemented by combining one or more MOSFETs operating in a linear area with different control voltages to each MOSFET. Although the MOSFET has no exponential characteristics, the VGA circuitry can easily implement a pseudo exponential function with a simple structure. Further, since a complex circuit for generating an exponential function is not necessary, power consumption thereof can be eliminated.

Abstract translation: 提供了一种可变增益放大器（VGA）电路，用于通过使用金属氧化物半导体场效应晶体管（MOSFET）的线性区域来实现作为伪指数函数的增益。 VGA电路包括一个固定电阻器和一个可变电阻器，该电阻器与固定电阻器串联连接，并通过将一个或多个工作在线性区域且具有不同控制电压的MOSFET连接到每个MOSFET来实现。 尽管MOSFET没有指数特性，但VGA电路可以通过简单的结构轻松实现伪指数函数。 此外，由于不需要用于产生指数函数的复合电路，所以可以消除其功耗。

公开(公告)号：KR1020030039914A

公开(公告)日：2003-05-22

申请号：KR1020010071308

申请日：2001-11-16

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  조민형 ,  권종기 ,  김경수

IPC: H03D7/12

Abstract: PURPOSE: A frequency up converting mixer for use in a complementary metal oxide semiconductor(CMOS) device is provided to increase the size of the input signal by constructing a negative feedback loop circuit at the input block inputted thereto an input signal and improving the linearity of the input signal. CONSTITUTION: A frequency up converting mixer for use in a complementary metal oxide semiconductor(CMOS) device includes a first device constructed by a negative feedback loop method for increasing the linearity of the positive voltage of input signal, a second device constructed by a negative feedback loop method for increasing the linearity of the negative voltage of the input signal and a mixing block for mixing the signal outputted from the first and the second devices and the carrier signal.

Abstract translation: 目的：提供一种用于互补金属氧化物半导体（CMOS）器件的升频转换混频器，以通过在输入到输入信号的输入块上构造负反馈环路来增加输入信号的大小，并提高输入信号的线性度 输入信号。 构成：用于互补金属氧化物半导体（CMOS）器件的升频转换混频器包括由用于增加输入信号的正电压的线性度的负反馈环路方法构成的第一器件，由负反馈构成的第二器件 用于增加输入信号的负电压的线性的循环方法和用于混合从第一和第二装置输出的信号和载波信号的混合块。

公开(公告)号：KR100377197B1

公开(公告)日：2003-03-26

申请号：KR1020000082253

申请日：2000-12-26

Applicant: 한국전자통신연구원

Inventor： 한경태 ,  임인기 ,  어익수 ,  서혜주 ,  김경수 ,  정희범 ,  조한진

IPC: H04B1/16

CPC classification number: H04L5/06 ,  H04B1/7115

Abstract: In the apparatus and method for separating carrier of multicarrier wireless communication receiver system, each carrier separation is performed after a quantization in a wireless communication receiver system such as a received multicarrier CDMA (Code Division Multiple Access) etc., to thereby reduce the whole number of quantizers and separate multicarrier from a received signal. For that, the apparatus for separating the carrier of the multicarrier wireless communication receiver system includes an internal oscillating unit for generating internal multicarrier; a plurality of frequency transition units for respectively down-converting the multicarrier generated by the internal oscillating unit and moving it to frequency of "0" as a frequency center; and a plurality of filtering units for individually filtering the respective carrier moved by the plurality of frequency transition units to the frequency center as the frequency of "0", through a low frequency pass band and for providing it as an input of a rake receiver.

Abstract translation: 在用于多载波无线通信接收机系统的载波分离的设备和方法中，在诸如接收到的多载波CDMA（码分多址）等的无线通信接收机系统中进行量化之后执行每个载波分离，从而减少整数 量化器和独立的多载波与接收信号。 为此，用于分离多载波无线通信接收机系统的载波的设备包括：用于生成内部多载波的内部振荡单元; 多个频率转换单元，用于分别下转换由内部振荡单元产生的多载波并将其移动到“0”的频率; 作为一个频率中心; 以及多个滤波单元，用于通过低频通带将由多个频率转换单元移动的相应载波单独滤波到作为频率“0”的频率中心，并用于将其提供为瑞克接收机的输入 。

公开(公告)号：KR1020030094447A

公开(公告)日：2003-12-12

申请号：KR1020020031287

申请日：2002-06-04

Applicant: 한국전자통신연구원

Inventor： 서혜주 ,  조민형 ,  권종기

IPC: H03F3/45

Abstract: PURPOSE: A transconductance amplifier having high linearity and high gain is provided to maintain the linearity without increasing the current by forming an input terminal with NMOS transistors and PMOS transistors. CONSTITUTION: A transconductance amplifier having high linearity and high gain includes the first and the second input terminals and the first and the second output terminals. Input signals are inputted into a plurality of NMOS transistors(mn1-mn6) and a plurality of PMOS transistors(mp1-mp6) of the first and the second input terminals. The input signals received from the first and the second input terminals are amplified as much as the gain proportional to the conductance of the NMOS transistors(mn1-mn6) and the PMOS transistors(mp1-mp6). The amplified input signals are outputted to the first and the second output terminals.

Abstract translation: 目的：提供具有高线性度和高增益的跨导放大器，以通过用NMOS晶体管和PMOS晶体管形成输入端而不增加电流来保持线性。 构成：具有高线性度和高增益的跨导放大器包括第一和第二输入端子以及第一和第二输出端子。 输入信号被输入到第一和第二输入端子的多个NMOS晶体管（mn1-mn6）和多个PMOS晶体管（mp1-mp6）中。 从第一和第二输入端子接收的输入信号被放大成与NMOS晶体管（mn1-mn6）和PMOS晶体管（mp1-mp6）的电导成正比的增益。 放大的输入信号被输出到第一和第二输出端。

公开(公告)号：KR1020030055758A

公开(公告)日：2003-07-04

申请号：KR1020010085836

申请日：2001-12-27

Applicant: 한국전자통신연구원

Inventor： 윤용식 ,  조민형 ,  서혜주 ,  권종기 ,  김경수

IPC: H03G3/00

CPC classification number: H03G1/0017 ,  H03F3/45197 ,  H03F2203/45504 ,  H03F2203/45726 ,  H03G1/007 ,  H03G7/00

Abstract: PURPOSE: A variable gain amplification circuit of an automatic gain control is provided, which achieves a pseudo exponential function with a simple configuration, and prevents power consumption. CONSTITUTION: A fixed resistor part(R) receives an electric signal, and a variable resistor part(r) is connected to the fixed resistor part serially and has a plurality of NMOS transistors connected in parallel each other by applying different control voltage. The fixed resistor part has the plurality of NMOS transistors operating in a saturated area. The variable resistor part acts as one variable resistor by connecting the plurality of NMOS transistors in parallel operating in a linear area.

Abstract translation: 目的：提供自动增益控制的可变增益放大电路，通过简单的配置实现伪指数函数，防止功耗。 构成：固定电阻器部分（R）接收电信号，并且可变电阻器部分（r）被串联连接到固定电阻器部分，并且通过施加不同的控制电压而具有并联连接的多个NMOS晶体管。 固定电阻部分具有在饱和区域中工作的多个NMOS晶体管。 可变电阻器部分通过在线性区域中并联操作的多个NMOS晶体管而作为一个可变电阻器。