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    • 2. 发明专利
    • Double band tuner
    • 双带调音台
    • JP2006121710A
    • 2006-05-11
    • JP2005308611
    • 2005-10-24
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM BONKEEKIM BO-EUN
    • H04B1/26H04B1/16H04B7/08H04N5/44
    • PROBLEM TO BE SOLVED: To provide a double band receiver for receiving atmospheric waves, with regard to an atmospheric wave receiver.
      SOLUTION: The double band receiver includes a first receiving portion that includes a first low-noise amplifier, a first variable gain amplifier and a first mixing portion and to receive a first band signal, a second receiving portion that includes a second low noise amplifier, a second variable gain amplifier and a second mixing portion and for receiving a second band signal, a local oscillator for supplying a local oscillation signal to the first and the second mixing portions of the first and the second receiving portions, a low-pass filter for filtering the signal output by the first and the second mixing portions, and the variable gain amplifier for amplifying the signal filtered by the low-pass filter with an intermediate frequency.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:关于大气波接收器,提供用于接收大气波的双频带接收机。 解决方案:双频带接收机包括:第一接收部分,包括第一低噪声放大器,第一可变增益放大器和第一混合部分,并且接收第一频带信号;第二接收部分,包括第二低频 噪声放大器,第二可变增益放大器和第二混合部分,并用于接收第二频带信号;本地振荡器,用于向第一和第二接收部分的第一和第二混合部分提供本地振荡信号; 滤波器,用于对由第一和第二混合部分输出的信号进行滤波;以及可变增益放大器,用于以中频频率放大由低通滤波器滤波的信号。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Amplifier circuit improved in linearity and frequency band
    • 线性和频带改进的放大器电路
    • JP2007053762A
    • 2007-03-01
    • JP2006221434
    • 2006-08-15
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM TAE WOOKKIM BONKEELEE KWYRO
    • H03F1/32H03F1/34H03F1/42
    • H03F1/34H03F1/223H03F1/3205H03F2200/162H03F2200/36H03F2200/366H03F2200/432
    • PROBLEM TO BE SOLVED: To provide an amplifier circuit which is improved in linearity and used for a wide frequency band.
      SOLUTION: The amplifier circuit comprises an amplification block comprising a main transistor comprising first, second and third terminals, wherein a current flow from the second terminal to the third terminal changes according to a voltage applied to the first terminal, an auxiliary transistor comprising fourth, fifth and sixth terminals, wherein a current flow from the fifth terminal to the sixth terminal changes according to a voltage applied to the fourth terminal, a main transistor bias unit applying a bias to make the main transistor operate in a saturation region, and an auxiliary transistor bias unit applying a bias to make the auxiliary transistor operate in a sub-threshold region, wherein the second and fifth terminals are electrically connected to each other and the first and fourth terminals are electrically connected to an input port, a first feedback block electrically connected to the third terminal, and a second feedback block electrically connected to the sixth terminal.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种线性改善并用于宽频带的放大器电路。 解决方案:放大器电路包括一个放大块,它包括一个包括第一,第二和第三端子的主晶体管,其中从第二端子到第三端子的电流根据施加到第一端子的电压而变化,辅助晶体管 包括第四,第五和第六端子,其中从第五端子到第六端子的电流根据施加到第四端子的电压而变化,主晶体管偏置单元施加偏压以使主晶体管在饱和区域中工作, 以及辅助晶体管偏置单元,施加偏置以使辅助晶体管工作在次阈值区域,其中第二和第五端子彼此电连接,并且第一和第四端子电连接到输入端口,第一端子 电连接到第三端子的反馈块和与第六项电连接的第二反馈块 伊纳勒。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Low-IF RECEIVER FOR TERRESTRIAL DIGITAL MULTIMEDIA BROADCASTING/DIGITAL AUDIO BROADCASTING
    • 地面数字多媒体广播低频中频接收机/数字音频广播
    • JP2007053759A
    • 2007-03-01
    • JP2006221293
    • 2006-08-14
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM BONKEEKIM BO-EUN
    • H04B1/16H04B1/26H04N5/44
    • H03G3/3078H03G3/3068H03J1/005H04B1/28H04B1/30H04B7/0842H04H40/18
    • PROBLEM TO BE SOLVED: To provide a T-DMB/DAB Low-IF receiver which can be implemented easily as a one chip while reducing the fabrication cost by removing an SAW filter.
      SOLUTION: The Low-IF receiver comprises a low noise amplifying section for amplifying a received RF signal, a video image erasure down converting/mixing section for converting the frequency band of an output signal in the Low-IF band and removing the video frequency band, a low-pass filtering section for filtering the low frequency band of an output signal, a section for amplifying an output signal, a local oscillator for generating a down conversion frequency being fed to the video image erasure down converting/mixing section, a phase lock loop for shifting and locking the frequency of the local oscillator, and an automatic gain control section for controlling the amplification gain at the low noise amplifying section and the amplifying section. The Low-IF receiver is implemented as a one chip on a single semiconductor circuit board, and a gain control signal from the automatic gain control section is controlled by a zero control signal based on a zero signal included in the RF signal.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种T-DMB / DAB低中频接收机,其可以通过移除SAW滤波器而将其轻松实现为单芯片,同时降低制造成本。 解决方案:低IF接收机包括用于放大接收到的RF信号的低噪声放大部分,用于转换Low-IF频带中的输出信号的频带的视频图像擦除转换/混合部分, 视频频带,用于滤波输出信号的低频带的低通滤波部分,用于放大输出信号的部分,用于产生下变频频率的本地振荡器,被馈送到视频图像消失转换/混合部分 用于移位和锁定本地振荡器的频率的锁相环,以及用于控制低噪声放大部分和放大部分的放大增益的自动增益控制部分。 低IF接收机在单个半导体电路板上实现为单芯片,并且来自自动增益控制部分的增益控制信号由基于包含在RF信号中的零信号的零控制信号控制。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Receiver and amplification-gain controlling device thereof
    • 接收器和放大增益控制装置
    • JP2008054314A
    • 2008-03-06
    • JP2007214554
    • 2007-08-21
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM BONKEEKIM BO-EUN
    • H04B1/16H03G3/20H04B1/26
    • H03G3/3068
    • PROBLEM TO BE SOLVED: To provide a receiver whose receiving performance is improved.
      SOLUTION: A receiver includes: a variable gain amplification unit 241 which amplifies a radio frequency signal depending on the magnitude of an input signal; a frequency conversion unit 242 which performs frequency conversion of the signal amplified by the variable gain amplification unit; a filtering unit 215 which filters the signal frequency-converted by the frequency conversion unit; a first compensation unit 231 which detects power of the signal amplified in the variable gain amplification unit and outputs a first control signal; a second compensation unit 232 which detects strength of the signal frequency-converted in the frequency conversion unit and outputs a second control signal; and a third compensation unit 233 which detects strength of the signal filtered in the filtering unit and outputs a third control signal. Gain of the variable amplification unit is varied by the first control signal, the second control signal and the third control signal.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供接收性能得到改善的接收机。 解决方案:接收机包括:可变增益放大单元241,其根据输入信号的大小放大射频信号; 频率转换单元242,对由可变增益放大单元放大的信号进行频率变换; 滤波单元215,其对由频率转换单元进行频率变换的信号进行滤波; 第一补偿单元231,其检测在可变增益放大单元中放大的信号的功率,并输出第一控制信号; 第二补偿单元232,其检测在频率转换单元中频率转换的信号的强度,并输出第二控制信号; 以及第三补偿单元233,其检测在滤波单元中滤波的信号的强度,并输出第三控制信号。 可变放大单元的增益由第一控制信号,第二控制信号和第三控制信号变化。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • High linearity programmable gain amplifier using switch
    • 使用开关的高线性可编程增益放大器
    • JP2006135933A
    • 2006-05-25
    • JP2005228131
    • 2005-08-05
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM TAE WOOKKIM BONKEELEE KWYRO
    • H03G3/10
    • H03G1/0088
    • PROBLEM TO BE SOLVED: To provide a variable gain amplifier for ensuring a noise figure and a bandwidth of a variable gain amplification element.
      SOLUTION: A high linearity programmable gain amplifier using a switch includes an attenuating portion for gain control and an amplifying portion having a first amplifying part and a second amplifying part, for amplifying an input signal and outputting a signal amplified, wherein the first amplifying part has a first amplifier for amplifying an input signal and a first switch for activating the first amplifier and the second amplifying part has a second amplifier for amplifying an input signal and a second switch for activating the second amplifier.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于确保可变增益放大元件的噪声系数和带宽的可变增益放大器。 解决方案:使用开关的高线性可编程增益放大器包括用于增益控制的衰减部分和具有第一放大部分和第二放大部分的放大部分,用于放大输入信号并输出​​放大的信号,其中第一 放大部分具有用于放大输入信号的第一放大器和用于激活第一放大器的第一开关,并且第二放大部分具有用于放大输入信号的第二放大器和用于激活第二放大器的第二开关。 版权所有(C)2006,JPO&NCIPI
    • 10. 发明专利
    • Differential amplifier circuit and mixer circuit having improved linearity
    • 具有改进线性的差分放大器电路和混频器电路
    • JP2006135932A
    • 2006-05-25
    • JP2005221692
    • 2005-07-29
    • Integrant Technologies Incインテグラント テクノロジーズ インコーポレーテッド
    • KIM TAE WOOKKIM BONKEELEE KWYRO
    • H03F3/45H03D7/14
    • H03D7/1441H03D7/1433H03D7/1458H03D7/1491H03D2200/0043H03D2200/0047H03F1/3211H03F3/45183
    • PROBLEM TO BE SOLVED: To provide a differential amplifier circuit, wherein IIP3 is improved while making high CMRR or IIP2 being advantages of differential circuit. SOLUTION: The differential amplifier circuit according to the present invention includes: first and second load stages each having a predetermined resistance value; a main differential amplifier unit having a first differential stage that forms a differential pair in such a way as to amplify a difference between a first input voltage and a second input voltage, and a constant current source, which has a predetermined current driving capability and is connected serially between a power source voltage terminal and a ground terminal; and an auxiliary differential amplifier unit having a second differential stage that forms a differential pair in such a way as to amplify a difference between a third input voltage and a fourth input voltage connected between the first load stage and the second load stage, and the ground, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供差分放大器电路,其中IIP3被改进,同时使高CMRR或IIP2成为差分电路的优点。 解决方案:根据本发明的差分放大器电路包括:具有预定电阻值的第一和第二负载级; 主差分放大器单元,其具有形成差分对的第一差分级,以放大第一输入电压和第二输入电压之间的差异;以及恒定电流源,其具有预定的电流驱动能力,并且是 串联连接在电源电压端子和接地端子之间; 以及辅助差分放大器单元,其具有形成差分对的第二差分级,以便放大连接在第一负载级和第二负载级之间的第三输入电压和第四输入电压之间的差,并且接地 , 分别。 版权所有(C)2006,JPO&NCIPI