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    Receiver and amplification-gain controlling device thereof
    2.
    发明授权
    Receiver and amplification-gain controlling device thereof 有权
    其接收机和放大增益控制装置

    公开(公告)号：US07756499B2

    公开(公告)日：2010-07-13

    申请号：US11843322

    申请日：2007-08-22

    申请人： Bonkee Kim ,  Bo-Eun Kim

    发明人： Bonkee Kim ,  Bo-Eun Kim

    IPC分类号： H04B1/06 ,  H04L27/08

    CPC分类号： H03G3/3068

    摘要： The receiver comprises a variable gain amplification unit, a mixing unit, a filtering unit, and three compensation unit. Each compensation unit detects powers of the signal amplified in the variable gain amplification unit, the signal down-converted in the mixing unit and the signal filtered in the filtering unit. A gain of the variable gain amplification unit is adjusted based on the powers detected by three compensation units.

    摘要翻译： 接收机包括可变增益放大单元，混合单元，滤波单元和三个补偿单元。 每个补偿单元检测在可变增益放大单元中放大的信号的功率，在混合单元中被下变频的信号和在滤波单元中滤波的信号。 基于由三个补偿单元检测的功率来调整可变增益放大单元的增益。

    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver
    4.
    发明申请
    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver 审中-公开
    地面数字多媒体广播和数字音频广播低中频接收机

    公开(公告)号：US20070042730A1

    公开(公告)日：2007-02-22

    申请号：US11463643

    申请日：2006-08-10

    申请人： Bonkee Kim ,  Bo-Eun Kim

    发明人： Bonkee Kim ,  Bo-Eun Kim

    IPC分类号： H04B7/08 ,  H04B1/18

    CPC分类号： H04B17/21 ,  H04B7/0842

    摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, a phase-locked loop, and at least one high pass filter. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, the phase-locked loop, and the high pass filter are integrated in a monolithic semiconductor integrated circuit substrate. The T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter without degrading the performance of the receiver. Thus, the T-DMB and DAB low IF receiver can be easily integrated into a single and manufactured at low costs.

    摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低中频接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器，本地振荡器，锁相环以及至少一个高通 过滤。 具体地，单片半导体集成电路基板中集成有LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器，锁相环和高通滤波器。 T-DMB和DAB低IF接收器允许去除传统的SAW滤波器而不降低接收机的性能。 因此，T-DMB和DAB低IF接收机可以轻松集成到一个单一的并以低成本制造。

    TRANSCONDUCTANCE VARYING CIRCUIT OF TRANSCONDUCTOR CIRCUIT, VARYING BANDWIDTH FILTER CIRCUIT USING THE SAME AND DIGITAL TUNING CIRCUIT OF TRANSCONDUCTOR-CAPACITOR FILTER
    5.
    发明申请
    TRANSCONDUCTANCE VARYING CIRCUIT OF TRANSCONDUCTOR CIRCUIT, VARYING BANDWIDTH FILTER CIRCUIT USING THE SAME AND DIGITAL TUNING CIRCUIT OF TRANSCONDUCTOR-CAPACITOR FILTER 失效
    超导体电路的交叉变化电路，使用相同的带状滤波器电路和传统电容滤波器的数字调谐电路

    公开(公告)号：US20050162194A1

    公开(公告)日：2005-07-28

    申请号：US11083975

    申请日：2005-03-21

    申请人： Seyeob Kim ,  Bo-Eun Kim ,  Minsu Jeong

    发明人： Seyeob Kim ,  Bo-Eun Kim ,  Minsu Jeong

    IPC分类号： H03F3/45 ,  H03H11/04 ,  H03H11/12 ,  H03K5/22 ,  H03K5/24

    CPC分类号： H03K5/2481 ,  H03F2203/45496 ,  H03F2203/45504 ,  H03H11/04 ,  H03H11/1291

    摘要： The present invention relates to a circuit for varying bandwidth of transconductance-capacitor filter by controlling transconductance of a transconductance circuit, and a digital tuning circuit of transconductor-capacitor filter. A transconductor of an embodiment of the present invention comprises a first and second amplifying devices; a resistor; a first and second bias current sources; and transconductance varying circuit. A tuning circuit of another embodiment of the invention relates to a digital tuning circuit comprising a transconductor that outputs current proportional to input voltage and a varying capacitance that is connected with output node of transconductor and between grounds and varies its capacitance depending upon the level of control signal. The digital tuning circuit further comprises a transconductor, a comparator, a counter, a varying capacitor, means for maintaining the output voltage of the transconductor as substantial zero for first period, and means for inputting input voltage to the transconductor for second period and means for inputting the output voltage of the transconductor to input node of the comparator.

    摘要翻译： 本发明涉及通过控制跨导电路的跨导和跨导电容滤波器的数字调谐电路来改变跨导 - 电容滤波器的带宽的电路。 本发明实施例的跨导体包括第一和第二放大器件; 一个电阻; 第一和第二偏置电流源; 和跨导变化电路。 本发明另一实施例的调谐电路涉及一种数字调谐电路，其包括输出与输入电压成比例的电流的跨导体和与跨导器的输出节点连接的变化的电容，并且在接地之间并根据控制电平改变其电容 信号。 数字调谐电路还包括跨导器，比较器，计数器，变化电容器，用于将跨导体的输出电压保持为第一周期的实质零度的装置，以及用于将输入电压输入到跨导体用于第二周期的装置， 将跨导体的输出电压输入到比较器的输入节点。

    Broadband variable gain amplifier with high linearity and variable gain characteristic
    6.
    发明授权
    Broadband variable gain amplifier with high linearity and variable gain characteristic 有权
    具有高线性度和可变增益特性的宽带可变增益放大器

    公开(公告)号：US06882226B2

    公开(公告)日：2005-04-19

    申请号：US10438047

    申请日：2003-05-15

    申请人： Youngho Cho ,  Bo-Eun Kim ,  Bonkee Kim

    发明人： Youngho Cho ,  Bo-Eun Kim ,  Bonkee Kim

    IPC分类号： H03G1/00 ,  H03G3/30 ,  H03F1/36

    CPC分类号： H03F1/342 ,  H03F3/45183 ,  H03F2200/108 ,  H03F2200/117 ,  H03F2200/141 ,  H03F2203/45532 ,  H03G1/007

    摘要： A broadband variable gain amplifier with improved linearity and gain characteristic is provided. According to the present invention, the broadband variable gain amplifier comprises: an amplification unit for amplifying an input signal applied to an input terminal and outputting an amplified signal to an output terminal; and a gain control unit which is connected between the input and output terminals, and for controlling gain of said amplification unit, wherein said gain control unit comprises: a variable resistance unit whose resistance value is varied according to a control signal; and a broadband matching unit for proving an optimal impedance characteristic to the input terminal said amplification unit in a broad band, where in said variable gain resistance unit and said broadband matching unit is connected in parallel.

    摘要翻译： 提供了具有改善的线性度和增益特性的宽带可变增益放大器。 根据本发明，宽带可变增益放大器包括：放大单元，用于放大施加到输入端的输入信号，并将放大的信号输出到输出端; 以及增益控制单元，其连接在所述输入和输出端子之间并用于控制所述放大单元的增益，其中所述增益控制单元包括：电阻值根据控制信号而变化的可变电阻单元; 以及宽带匹配单元，用于向所述放大单元在宽带中证明最佳阻抗特性，其中所述可变增益电阻单元和所述宽带匹配单元并联连接。

    Local oscillator using I/Q mismatch compensating circuit through LO path receiver using thereof
    7.
    发明授权
    Local oscillator using I/Q mismatch compensating circuit through LO path receiver using thereof 有权
    使用I / Q失配补偿电路的本地振荡器通过LO路径接收机使用

    公开(公告)号：US07116953B2

    公开(公告)日：2006-10-03

    申请号：US10697988

    申请日：2003-10-31

    申请人： Bon-Kee Kim ,  Bo-Eun Kim

    发明人： Bon-Kee Kim ,  Bo-Eun Kim

    IPC分类号： H03J7/32 ,  H04B1/10

    CPC分类号： H04B1/30 ,  H03D3/009 ,  H04B1/0475 ,  H04L2027/0016 ,  H04L2027/0024

    摘要： A local oscillator provides an in-phase local oscillating signal and quadrature-phase signal to first and second mixers outputting an input signal with a mixed in-phase local oscillating signal and quadrature-phase local oscillating signal, respectively. The oscillator comprises a local oscillator having first and second delay cells and outputting said in-phase local oscillating signal and said quadrature-phase local oscillating signal; and a correction circuit for controlling phase matching characteristics, said correction circuit setting bias current flowing in said first and second delay cells of said local oscillator as being to be different. In another embodiment, the phase matching characteristic is controlled by setting the bias voltage applied to the first and second delay cells as being to be different, by setting the width of the active device included in the first and second delay cells dells as being to be different, or by setting impedance of passive device to be different.

    摘要翻译： 本地振荡器向第一和第二混频器提供同相本地振荡信号和正交相位信号，分别输出具有混合同相本地振荡信号和正交相位本地振荡信号的输入信号。 所述振荡器包括具有第一和第二延迟单元的本地振荡器，并输出所述同相本地振荡信号和所述正交相位本地振荡信号; 以及用于控制相位匹配特性的校正电路，所述校正电路将在所述本地振荡器的所述第一和第二延迟单元中流动的偏置电流设置为不同。 在另一个实施例中，通过将施加到第一和第二延迟单元的偏置电压设置为不同来控制相位匹配特性，通过将包括在第一和第二延迟单元中的有源器件的宽度设定为 或者通过将被动设备的阻抗设置为不同。

    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver
    9.
    发明申请
    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver 审中-公开
    地面数字多媒体广播和数字音频广播低中频接收机

    公开(公告)号：US20070117532A1

    公开(公告)日：2007-05-24

    申请号：US11463634

    申请日：2006-08-10

    申请人： Bonkee Kim ,  Bo-Eun Kim

    发明人： Bonkee Kim ,  Bo-Eun Kim

    IPC分类号： H04H1/00 ,  H04B1/16

    CPC分类号： H03J1/005 ,  H04B1/0064 ,  H04B1/0082 ,  H04B1/30 ,  H04H40/18 ,  H04H2201/11 ,  H04H2201/20

    摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, and a phase-locked loop. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, and the phase-locked loop are integrated in a monolithic semiconductor integrated circuit substrate. Using the T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter and the T-DMB and DAB low IF receiver can be easily integrated in the monolithic semiconductor integrated circuit substrate, and manufactured at low costs.

    摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低中频接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器，本地振荡器和锁相环。 特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器和锁相环集成在单片半导体集成电路基板中。 使用T-DMB和DAB低IF接收器可以去除传统的SAW滤波器，而T-DMB和DAB低IF接收器可以轻松集成在单片半导体集成电路基板中，并以低成本制造。

    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver
    10.
    发明申请
    Terrestrial-Digital Multimedia Broadcasting And Digital Audio Broadcasting Low Intermediate Frequency Receiver 审中-公开
    地面数字多媒体广播和数字音频广播低中频接收机

    公开(公告)号：US20070042742A1

    公开(公告)日：2007-02-22

    申请号：US11463639

    申请日：2006-08-10

    申请人： Bonkee Kim ,  Bo-Eun Kim

    发明人： Bonkee Kim ,  Bo-Eun Kim

    IPC分类号： H04B1/26

    CPC分类号： H04B1/28 ,  H04B1/30

    摘要： A terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, a phase-locked loop, and an automatic gain controller (AGC). Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the AGC, the local oscillator, and the phase-locked loop are integrated in monolithic semiconductor integrated circuit substrate. The AGC supplies a gain control signal to the LNA and the amplifier according to the magnitude of the RF signal, and the gain control signal is controlled by a null control signal based on a null signal comprised in a received radio frequency (RF) signal.

    摘要翻译： 地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器， 本地振荡器，锁相环和自动增益控制器（AGC）。 特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，AGC，本地振荡器和锁相环集成在单片半导体集成电路基板中。 AGC根据RF信号的幅度向LNA和放大器提供增益控制信号，并且基于包含在接收的射频（RF））信号中的零信号，通过零控制信号来控制增益控制信号。