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1. 发明公开

KR1020100013810A 광대역 튜너 无效
标题翻译：宽带调谐器
公开(公告)号：KR1020100013810A
公开(公告)日：2010-02-10
申请号：KR1020080075507
申请日：2008-08-01
申请人： 엘지전자 주식회사
发明人： 김홍득 , 탁금영 , 임동구 , 이희섭
IPC分类号： H04N5/50
摘要： PURPOSE: A broadband tuner is provided to receive terrestrial and cable TV broadcasting signals with superior performance and low power and realize a single chip. CONSTITUTION: An RF signal processor(100) processes RF signals of television broadcasting. A multi-phase local oscillating signal generator(110) generates local oscillating signals of phases. A plurality of mixers are made of a plurality of unit mixers. A complex mixer unit mixes multi-phase local oscillating signals to generate IF signals.
摘要翻译：目的：提供宽带调谐器来接收地面和有线电视广播信号，具有出色的性能和低功耗，实现单芯片。构成：RF信号处理器（100）处理电视广播的RF信号。多相本地振荡信号发生器（110）产生相位的本地振荡信号。多个混合器由多个单元混合器制成。复合混频器单元混合多相本地振荡信号以产生IF信号。

2. 发明公开

KR1020080067459A 감쇠기 无效
标题翻译： ATTENUATOR
公开(公告)号：KR1020080067459A
公开(公告)日：2008-07-21
申请号：KR1020070004776
申请日：2007-01-16
申请人： 엘지전자 주식회사
发明人： 임동구 , 김홍득
IPC分类号： H03H7/24
CPC分类号： H03H7/24 , H01P1/22 , H03H11/24 , H03H17/0054 , H03H19/008
摘要： An attenuator is provided to perform a reliable attenuation by arranging a switching unit between a terminal of a signal input unit and a terminal of an attenuation unit. An attenuator includes a signal input unit, an attenuation unit(140), and a switch unit(130). The signal input unit receives a predetermined electric signal. The attenuation unit attenuates the amplitude of the electric signal inputted from the signal input unit. The switch unit switches so that the signal input unit is coupled to the attenuation unit in an operation state. The switch unit switches so that the signal input unit is isolated from the attenuation unit in a non-operation state. The switch unit is grounded to be isolated from the signal input unit and the attenuation unit between the signal input unit and the attenuation unit. The signal input unit receives a radio frequency signal.
摘要翻译：提供衰减器以通过在信号输入单元的端子和衰减单元的端子之间布置开关单元来执行可靠的衰减。衰减器包括信号输入单元，衰减单元（140）和开关单元（130）。信号输入单元接收预定的电信号。衰减单元衰减从信号输入单元输入的电信号的幅度。开关单元切换，使得信号输入单元在操作状态下耦合到衰减单元。开关单元切换，使得信号输入单元在非操作状态下与衰减单元隔离。开关单元接地，与信号输入单元和信号输入单元与衰减单元之间的衰减单元隔离。信号输入单元接收射频信号。

3. 发明公开

KR1020080048591A 전류 미러를 이용한 광대역 저잡음 증폭기 无效
标题翻译：宽带低噪声放大器使用电流镜
公开(公告)号：KR1020080048591A
公开(公告)日：2008-06-03
申请号：KR1020060118742
申请日：2006-11-29
申请人： 엘지전자 주식회사 , 한국과학기술원
发明人： 송성식 , 이귀로 , 임동구 , 김홍득
IPC分类号： H03F1/26
CPC分类号： H03F1/26 , H03F1/223 , H03F1/56 , H03F3/193 , H03F2200/294
摘要： A wide-band low-noise amplifier using a current mirror is provided to perform a positive current feedback operation by using the current mirror. First and second common gate amplifiers(500,510) convert input signals of first and second input terminals to current. First and second common source amplifiers(520,530) amplify output signals of the first and second common gate amplifiers and output the amplified output signals to first and second output terminals. First and second current mirrors(540,550) supply the current to the first and second common source amplifiers according to the current applied to the first and second common gate amplifiers and feeds back the forward current to the second and first input terminals.
摘要翻译：提供使用电流镜的宽带低噪声放大器，以通过使用电流镜来执行正电流反馈操作。第一和第二公共门放大器（500,510）将第一和第二输入端的输入信号转换为电流。第一和第二公共源极放大器（520,530）放大第一和第二公共栅极放大器的输出信号，并将放大的输出信号输出到第一和第二输出端。第一和第二电流镜（540,550）根据施加到第一和第二公共栅极放大器的电流将电流提供给第一和第二公共源放大器，并将正向电流反馈到第二和第一输入端。

4. 发明公开

KR1020080025910A 저잡음 차동 증폭기 无效
标题翻译：低噪声差分放大器
公开(公告)号：KR1020080025910A
公开(公告)日：2008-03-24
申请号：KR1020060090700
申请日：2006-09-19
申请人： 엘지전자 주식회사
发明人： 임동구 , 김홍득
IPC分类号： H03F3/45 , H03F1/26
CPC分类号： H03F3/45183 , H03F1/223 , H03F1/26 , H03F1/56 , H03F2200/216 , H03F2203/45018
摘要： A low noise differential amplifier is provided to increase an amplification gain and to improve a linearity without an additional power consumption by reducing impedance of junction between two input transistors and two cascade output transistors. A low noise differential amplifier includes two input transistors(M1,M2), two cascode output transistors(M3,M4), and a cross-coupler(111). The input transistors invert and amplify two input signals received at gates. The cascode output transistors are series-connected to the two input transistors and amplify the amplified signals from the input transistors. The cross-coupler cross-couples junction nodes between the input and cascode output transistors with gates of the caascode output transistors.
摘要翻译：提供低噪声差分放大器以增加放大增益，并且通过减少两个输入晶体管和两个级联输出晶体管之间的结的阻抗而无需额外的功耗来提高线性度。低噪声差分放大器包括两个输入晶体管（M1，M2），两个共源共栅输出晶体管（M3，M4）和一个交叉耦合器（111）。输入晶体管反相并放大在门处接收的两个输入信号。串联输出晶体管串联连接到两个输入晶体管，并放大来自输入晶体管的放大信号。交叉耦合器将输入和共源共栅输出晶体管之间的结点交叉耦合，并与串联输出晶体管的栅极连接。

5. 发明公开

KR1020080014140A 광대역 저잡음 증폭기 失效
标题翻译：宽带低噪声放大器
公开(公告)号：KR1020080014140A
公开(公告)日：2008-02-13
申请号：KR1020080010015
申请日：2008-01-31
申请人： 엘지전자 주식회사
发明人： 임동구 , 이귀로 , 송성식 , 김홍득
IPC分类号： H03F1/26 , H03F1/42
CPC分类号： H03F1/26 , H03F1/42 , H03F3/193 , H03F2200/294 , H03F2200/372
摘要： A wideband low noise amplifier is provided to increase a gain and linear property of the LNA by coupling common gate and common source LNAs with each other using current mirrors. A wideband low noise amplifier includes a common gate LNA(Low Noise Amplifier)(800), a constant current source, a current mirror(810), and a common source LNA(820). The common gate LNA amplifies a signal from an input terminal. The constant current source supplies a bias voltage to the common gate LNA. The current mirror amplifies the output signal from the common gate LNA and outputs the amplified result to an output terminal. The common source LNA amplifies the signal at the input terminal and outputs the amplified result at the output terminal. The common gate LNA is an NMOS transistor. The constant current source is a high frequency choke reactor.
摘要翻译：提供宽带低噪声放大器以通过使用电流镜将公共栅极和公共源LNA彼此耦合来增加LNA的增益和线性特性。宽带低噪声放大器包括公共门LNA（低噪声放大器）（800），恒流源，电流镜（810）和公共源LNA（820）。公共门LNA放大来自输入端子的信号。恒流源向公共栅极LNA提供偏置电压。电流镜放大来自公共门LNA的输出信号，并将放大的结果输出到输出端。公共源LNA放大输入端的信号，并在输出端输出放大的结果。公共栅极LNA是NMOS晶体管。恒流源是高频扼流电抗器。

6. 发明公开

KR1020090075615A 튜너 有权
标题翻译： TUNER
公开(公告)号：KR1020090075615A
公开(公告)日：2009-07-08
申请号：KR1020080109981
申请日：2008-11-06
申请人： 엘지전자 주식회사
发明人： 임동구 , 이재엽 , 이희섭 , 김홍득 , 이귀로
IPC分类号： H04N5/44 , H04N5/455
CPC分类号： H03J3/06 , H03D3/007
摘要： A tuner is provided to remove harmonics in the received RF signal by including a tunable filter comprised of a passive filter. A low noise amplifier(110) amplifies the received RF(Radio Frequency) signal with the low noise. A tunable filter(130) filters the output signal of the low frequency amplifier by varying the central frequency according to a channel control signal. A local oscillator generates a local oscillation signal with a plurality of phases of the same frequency according to the channel control signal. A mixer generates an IF(Intermediate Frequency) signal of an I(In-phase) channel and a Q(Quadrature-phase) channel by mixing the output signals of the tunable filter and the local oscillator. An RSSI(Received Signal Strength Indicator)(120) detects the intensity of the output signal of the low noise amplifier and controls the amplification gain of the low noise amplifier according to the detected intensity.
摘要翻译：提供调谐器以通过包括由无源滤波器组成的可调谐滤波器来去除接收到的RF信号中的谐波。低噪声放大器（110）以低噪声放大接收到的RF（射频）信号。可调滤波器（130）根据信道控制信号改变中心频率来对低频放大器的输出信号进行滤波。本地振荡器根据信道控制信号产生具有相同频率的多个相位的本地振荡信号。混合器通过混合可调谐滤波器和本地振荡器的输出信号来产生I（同相）通道和Q（正交相）通道的IF（中频）信号。 RSSI（接收信号强度指示器）（120）检测低噪声放大器的输出信号的强度，并根据检测到的强度来控制低噪声放大器的放大增益。

7. 发明公开

KR1020080017967A ＲＦ 신호 송수신장치 및 ＲＦ 신호 송수신 방법 无效
标题翻译：用于发射和接收无线电频率信号的装置及其方法
公开(公告)号：KR1020080017967A
公开(公告)日：2008-02-27
申请号：KR1020060079914
申请日：2006-08-23
申请人： 엘지전자 주식회사
发明人： 김홍득 , 임동구 , 전세형
IPC分类号： H04B1/38 , H04B1/44
CPC分类号： H04B1/44 , Y02D70/00
摘要： An RF(Radio Frequency) signal transceiving device and an RF signal transceiving method are provided to reduce size of a chip as realizing output power consumption, and to accomplish good wireless communication performance as being used to various wireless communication methods, then to transceive RF signals by processing baseband signals or IF(Intermediate Frequency) band signals in a duplex way. A bidirectional mixer(300) receives an oscillation signal from an oscillator(210), and simultaneously converts RF band signals and IF band or baseband signals into mutual bands, respectively. A signal transmitter(500) processes transmission signals to output the IF band or baseband signals to the mixer(300). A signal receiver(400) receives the IF band or baseband signals to process the received signals.
摘要翻译：提供RF（射频）信号收发装置和RF信号收发方法，以减小芯片的尺寸实现输出功率消耗，并实现良好的无线通信性能，用于各种无线通信方式，然后收发RF信号通过以双工方式处理基带信号或IF（中频）频带信号。双向混频器（300）从振荡器（210）接收振荡信号，同时将RF频带信号和IF频带或基带信号分别转换为相互频带。信号发射器（500）处理传输信号以将IF频带或基带信号输出到混频器（300）。信号接收机（400）接收IF频带或基带信号以处理所接收的信号。

8. 发明公开

KR1020080073875A 버퍼 无效
标题翻译：缓冲
公开(公告)号：KR1020080073875A
公开(公告)日：2008-08-12
申请号：KR1020070012646
申请日：2007-02-07
申请人： 엘지전자 주식회사
发明人： 임동구 , 김홍득
IPC分类号： H03K19/0175
CPC分类号： H03K19/018521 , H03F3/45183 , H03K19/00361 , H03K19/01825
摘要： A buffer is provided to obtain a high voltage gain and reduction of noise characteristics in comparison with a conventional method by inputting input signals to a common source amplifying unit and a source follower. A buffer includes a common source amplifying unit(110) and a source follower(120). The common source amplifying unit receives an input signal together with a bias voltage. The input signal is inputted to the source follower through a capacitor unit(130) and a phase inversion unit(140). The source follower has an output terminal which is common with the common source amplifying unit. The common source amplifying unit and the source follower includes a differential structure having two inputs and two outputs.
摘要翻译：与常规方法相比，通过将输入信号输入到公共源放大单元和源极跟随器来提供缓冲器以获得高电压增益和降低噪声特性。缓冲器包括公共源极放大单元（110）和源极跟随器（120）。公共源放大单元接收输入信号以及偏置电压。输入信号通过电容器单元（130）和相位转换单元（140）输入到源极跟随器。源极跟随器具有与公共源极放大单元相同的输出端子。公共源放大单元和源极跟随器包括具有两个输入和两个输出的差分结构。

9. 发明授权

KR101454487B1 튜너 有权
标题翻译：调谐器
公开(公告)号：KR101454487B1
公开(公告)日：2014-11-03
申请号：KR1020080109981
申请日：2008-11-06
申请人： 엘지전자 주식회사
发明人： 임동구 , 이재엽 , 이희섭 , 김홍득 , 이귀로
IPC分类号： H04N5/44 , H04N5/455
CPC分类号： H03J3/06 , H03D3/007
摘要： 본 발명은 광대역의 텔레비전 방송신호를 수신하는 튜너에 관한 것이다. 본 발명의 튜터는, 저잡음 증폭기에서 출력되는 RF(Radio Frequency) 신호를 패시브 소자인 인덕터 및 가변 커패시터로 이루어지는 튜너블 필터로 필터링하여 고조파를 제거하고, 튜너블 필터의 출력신호를 혼합기에서 국부발진신호와 혼합하여 I(In-phase) 채널 및 Q(Quadrature-phase) 채널의 IF(Intermedia Frequency) 신호로 변환하며, 변환한 I 채널 및 Q 채널의 IF 신호는 IF 신호 처리부에서 필터링 등의 신호 처리를 수행한 후 복조기에 적합한 신호로 변환한다.
튜너, 패시브 필터, 튜너블 필터, 혼합기, I 채널, Q 채널, IF 신호

10. 发明授权

KR100835638B1 광대역 저잡음 증폭기 失效
标题翻译：宽带低噪声放大器
公开(公告)号：KR100835638B1
公开(公告)日：2008-06-09
申请号：KR1020080010015
申请日：2008-01-31
申请人： 엘지전자 주식회사
发明人： 임동구 , 이귀로 , 송성식 , 김홍득
IPC分类号： H03F1/26 , H03F1/42
摘要： 본 발명은 광대역 저잡음 증폭기에 관한 것으로서 입력신호를, 정전류원에 의해 바이어스 전압이 공급되는 공통 게이트 저잡음 증폭기로 증폭하고, 공통 게이트 저잡음 증폭기의 출력신호를 전류 미러로 전류 증폭하여 출력단자로 출력하며, 또한 입력신호를 공통 소스 저잡음 증폭기로 증폭하여 출력단자로 출력하는 것으로 공통 게이트 저잡음 증폭기 및 공통 소스 저잡음 증폭기의 장점만을 이용하고, 공통 게이트 저잡음 증폭기 및 공통 소스 저잡음 증폭기가 전류 미러를 기반으로 결합되어 광대역의 입력 매칭 특성을 가지며, 낮은 전력으로 저잡음과, 높은 이득 및 높은 선형특성을 얻을 수 있다.
광대역, 저잡음증폭기, 공통 게이트, 공통 소스, 텔레비전수상기, 수신기

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