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    DC OFFSET CALIBRATION APPARATUS, DC OFFSET CALIBRATION SYSTEM, AND METHOD THEREOF
    11.
    发明申请
    DC OFFSET CALIBRATION APPARATUS, DC OFFSET CALIBRATION SYSTEM, AND METHOD THEREOF 审中-公开
    DC偏移校准装置，DC偏移校准系统及其方法

    公开(公告)号：US20120044006A1

    公开(公告)日：2012-02-23

    申请号：US12886550

    申请日：2010-09-20

    申请人： Shiau-Wen Kao ,  Jia-Hung Peng ,  Ming-Ching Kuo

    发明人： Shiau-Wen Kao ,  Jia-Hung Peng ,  Ming-Ching Kuo

    IPC分类号： H03L5/00

    CPC分类号： H03F3/45475 ,  H03F3/45928 ,  H03F2203/45048 ,  H03F2203/45591

    摘要： A DC offset calibration apparatus including a signal processing unit, a comparison unit, a first resistor array, a second resistor array, and a resistor array control unit is provided. The signal processing unit receives an input differential signal and generates an output differential signal. The comparison unit detects and determines a first DC output voltage and a second DC output voltage of the output differential signal and generates a DC offset signal. First ends of the first resistor array and the second resistor array are respectively coupled to a first input terminal and a second input terminal of the signal processing unit. The resistor array control unit adjusts resistances of the first and the second resistor array according to the DC offset signal and a bit code sequence until the DC offset signal enters a transient state, so as to calibrate a DC offset voltage in the output differential signal.

    摘要翻译： 提供了包括信号处理单元，比较单元，第一电阻器阵列，第二电阻器阵列和电阻器阵列控制单元的DC偏移校准装置。 信号处理单元接收输入差分信号并产生输出差分信号。 比较单元检测并确定输出差分信号的第一直流输出电压和第二直流输出电压，并产生直流偏移信号。 第一电阻器阵列和第二电阻器阵列的第一端分别耦合到信号处理单元的第一输入端子和第二输入端子。 电阻器阵列控制单元根据直流偏移信号和位码序列调整第一和第二电阻器阵列的电阻，直到直流偏移信号进入过渡状态，以校准输出差分信号中的直流偏移电压。

    AUTOMATIC FREQUENCY CALIBRATION CIRCUIT AND AUTOMATIC FREQUENCY CALIBRATION METHOD
    14.
    发明申请
    AUTOMATIC FREQUENCY CALIBRATION CIRCUIT AND AUTOMATIC FREQUENCY CALIBRATION METHOD 有权
    自动频率校准电路和自动校准方法

    公开(公告)号：US20110221489A1

    公开(公告)日：2011-09-15

    申请号：US12767813

    申请日：2010-04-27

    申请人： Shih-Hao Tarng ,  Jia-Hung Peng ,  Ming-Ching Kuo

    发明人： Shih-Hao Tarng ,  Jia-Hung Peng ,  Ming-Ching Kuo

    IPC分类号： H03L7/08

    CPC分类号： H03L7/1976 ,  H03L7/087 ,  H03L7/099

    摘要： An automatic frequency calibration circuit and an automatic frequency calibration method for a fractional-N frequency synthesizer are provided. In a calibration mode, a state machine adjusts a fractional part and an integer part of a division ratio of a frequency divider unit according to a required precision. A first and a second frequency detecting units detect a reference frequency and an output frequency of the frequency divider unit, respectively. A judging interval unit defines at least one judging period in a total comparison time. A comparator compares the outputs of the first and the second frequency detecting units and outputs a comparison result at the judging period. Wherein, the state machine changes the capacitor configuration of a voltage-controlled oscillator when the comparison result shows that the reference frequency does not match the output frequency of the frequency divider unit.

    摘要翻译： 提供了一种用于分数N频率合成器的自动频率校准电路和自动频率校准方法。 在校准模式中，状态机根据所需的精度来调整分频器单元的分数部分和整数部分的分频比。 第一和第二频率检测单元分别检测分频器单元的参考频率和输出频率。 判断间隔单元定义总比较时间中的至少一个判断周期。 比较器比较第一和第二频率检测单元的输出，并在判断周期输出比较结果。 其中，当比较结果表明参考频率与分频器单元的输出频率不匹配时，状态机改变压控振荡器的电容器配置。

    Device for voltage-noise rejection and fast start-up
    15.
    发明授权
    Device for voltage-noise rejection and fast start-up 失效
    用于电压噪声抑制和快速启动的装置

    公开(公告)号：US07756266B2

    公开(公告)日：2010-07-13

    申请号：US11266414

    申请日：2005-11-03

    申请人： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

    发明人： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

    IPC分类号： H04M1/00 ,  H04M9/00

    CPC分类号： H03K17/223 ,  H03K17/161 ,  H03K2217/0036

    摘要： A device for voltage-noise rejection and fast start-up is provided. It comprises a low-pass filter connected to a voltage source, a voltage-controlled switch connected in parallel with the low-pass filter, and an auxiliary start-up element connected to a DC-only voltage output. By using a transistor operating in the triode region and a capacitor with suitable capacitance, it is suitable for integration to form a low-frequency low-pass pole to suppress the noise in the reference current. The auxiliary start-up element overcomes the large turn on time caused by the low frequency low-pass pole. As there is no static current during normal operation, the power consumption for the device is low.

    摘要翻译： 提供了一种用于电压噪声抑制和快速启动的设备。 它包括连接到电压源的低通滤波器，与低通滤波器并联连接的压控开关，以及连接到仅DC电压输出的辅助启动元件。 通过使用在三极管区域工作的晶体管和具有合适电容的电容器，适合集成形成低频低通极，以抑制参考电流中的噪声。 辅助启动元件克服了低频低通极引起的大的导通时间。 由于在正常运行期间没有静态电流，器件的功耗较低。

    Automatic frequency calibration circuit and automatic frequency calibration method
    16.
    发明授权
    Automatic frequency calibration circuit and automatic frequency calibration method 有权
    自动频率校准电路和自动频率校准方法

    公开(公告)号：US08120394B2

    公开(公告)日：2012-02-21

    申请号：US12767813

    申请日：2010-04-27

    申请人： Shih-Hao Tarng ,  Jia-Hung Peng ,  Ming-Ching Kuo

    发明人： Shih-Hao Tarng ,  Jia-Hung Peng ,  Ming-Ching Kuo

    IPC分类号： H03L7/06 ,  G01R23/00

    CPC分类号： H03L7/1976 ,  H03L7/087 ,  H03L7/099

    摘要： An automatic frequency calibration circuit and an automatic frequency calibration method for a fractional-N frequency synthesizer are provided. In a calibration mode, a state machine adjusts a fractional part and an integer part of a division ratio of a frequency divider unit according to a required precision. A first and a second frequency detecting units detect a reference frequency and an output frequency of the frequency divider unit, respectively. A judging interval unit defines at least one judging period in a total comparison time. A comparator compares the outputs of the first and the second frequency detecting units and outputs a comparison result at the judging period. Wherein, the state machine changes the capacitor configuration of a voltage-controlled oscillator when the comparison result shows that the reference frequency does not match the output frequency of the frequency divider unit.

    摘要翻译： 提供了一种用于分数N频率合成器的自动频率校准电路和自动频率校准方法。 在校准模式中，状态机根据所需的精度来调整分频器单元的分数部分和整数分频比。 第一和第二频率检测单元分别检测分频器单元的参考频率和输出频率。 判断间隔单元定义总比较时间中的至少一个判断周期。 比较器比较第一和第二频率检测单元的输出，并在判断周期输出比较结果。 其中，当比较结果表明参考频率与分频器单元的输出频率不匹配时，状态机改变压控振荡器的电容器配置。

    Method and apparatus for canceling balun amplifier noise
    17.
    发明授权
    Method and apparatus for canceling balun amplifier noise 有权
    用于消除平衡 - 不平衡转换放大器噪声的方法和装置

    公开(公告)号：US08410856B2

    公开(公告)日：2013-04-02

    申请号：US12971307

    申请日：2010-12-17

    申请人： Ming-Ching Kuo ,  Yi-Shing Shih ,  Shih-Hao Tarng

    发明人： Ming-Ching Kuo ,  Yi-Shing Shih ,  Shih-Hao Tarng

    IPC分类号： H03F3/04

    CPC分类号： H03F3/193 ,  H03F1/3205 ,  H03F3/45179 ,  H03F2200/09 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/456 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2200/492 ,  H03F2203/45318

    摘要： The noise figure of a low noise amplifier (LNA) is reduced without sacrificing performance such as gain, IIP3, and wideband impedance matching. Embodiments include configuring a control module of the LNA to sum and scale an output from a current-sensing branch of the LNA and an output from a voltage sensing branch of the LNA into one or more summed and scaled outputs. The control module also feeds the one or more summed and scaled outputs back to at least one of the outputs of the branches of the LNA.

    摘要翻译： 降低低噪声放大器（LNA）的噪声系数，而不会牺牲增益，IIP3和宽带阻抗匹配等性能。 实施例包括配置LNA的控制模块以将来自LNA的电流感测分支的输出和来自LNA的电压感测分支的输出相加和缩放成一个或多个相加和缩放的输出。 控制模块还将一个或多个相加和缩放的输出反馈给LNA的分支的至少一个输出。

    Device for voltage-noise rejection and fast start-up
    19.
    发明申请
    Device for voltage-noise rejection and fast start-up 失效
    用于电压噪声抑制和快速启动的装置

    公开(公告)号：US20070115061A1

    公开(公告)日：2007-05-24

    申请号：US11266414

    申请日：2005-11-03

    申请人： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

    发明人： Peng-Un Su ,  Horng-Yuan Shih ,  Ming-Ching Kuo

    IPC分类号： H03G3/00

    CPC分类号： H03K17/223 ,  H03K17/161 ,  H03K2217/0036

    摘要： A device for voltage-noise rejection and fast start-up is provided. It comprises a low-pass filter connected to a voltage source, a voltage-controlled switch connected in parallel with the low-pass filter, and an auxiliary start-up element connected to a DC-only voltage output. By using a transistor operating in the triode region and a capacitor with suitable capacitance, it is suitable for integration to form a low-frequency low-pass pole to suppress the noise in the reference current. The auxiliary start-up element overcomes the large turn on time caused by the low frequency low-pass pole. As there is no static current during normal operation, the power consumption for the device is low.

    摘要翻译： 提供了一种用于电压噪声抑制和快速启动的设备。 它包括连接到电压源的低通滤波器，与低通滤波器并联连接的压控开关，以及连接到仅DC电压输出的辅助启动元件。 通过使用在三极管区域工作的晶体管和具有合适电容的电容器，适合集成形成低频低通极，以抑制参考电流中的噪声。 辅助启动元件克服了低频低通极引起的大的导通时间。 由于在正常运行期间没有静态电流，器件的功耗较低。

    Multi-band low noise amplifier
    20.
    发明授权
    Multi-band low noise amplifier 失效
    多频段低噪声放大器

    公开(公告)号：US06882223B2

    公开(公告)日：2005-04-19

    申请号：US10687580

    申请日：2003-10-20

    申请人： June-Ming Hsu ,  Ming-Ching Kuo ,  Shin-Fu Chen ,  Tz-Heng Fu

    发明人： June-Ming Hsu ,  Ming-Ching Kuo ,  Shin-Fu Chen ,  Tz-Heng Fu

    IPC分类号： H03F3/189 ,  H03F3/45 ,  H03F3/72

    CPC分类号： H03F3/189 ,  H03F3/45089 ,  H03F3/72 ,  H03F2200/27 ,  H03F2200/372 ,  H03F2203/45364

    摘要： A multi-band low noise amplifier comprising: a plurality of matching networks, a plurality of differential pairs, a pair of common base transistors, a pair of inductors, a pair of variable capacitors, a pair of inductors and a current generator. Bases of said plurality of differential pairs are coupled to outputs of said plurality of input matching networks. Emitters and collectors of said plurality of differential pairs are connected. Emitters of said common base transistor pairs are coupled to collectors of said plurality of differential pairs. The inductors are coupled to collectors of said common base transistor and a power supply. The capacitors and the inductors form a resonator pair. The inductors are coupled to emitters of said plurality of differential pairs. The inductor pairs are interlinked. The current generators are coupled to a coupling point of said inductors and to ground.

    摘要翻译： 一种多频带低噪声放大器，包括：多个匹配网络，多个差分对，一对公共基极晶体管，一对电感器，一对可变电容器，一对电感器和电流发生器。 所述多个差分对的基极耦合到所述多个输入匹配网络的输出端。 连接所述多个差分对的发射极和集电极。 所述公共基极晶体管对的发射极耦合到所述多个差分对的集电极。 电感器耦合到所述公共基极晶体管的集电极和电源。 电容器和电感器形成谐振器对。 电感器耦合到所述多个差分对的发射极。 电感对互相连接。 电流发生器耦合到所述电感器的耦合点并接地。