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1. 发明申请

US20080125060A1 Radio Frequency Transceiver 审中-公开
标题翻译：射频收发器
公开(公告)号：US20080125060A1
公开(公告)日：2008-05-29
申请号：US11428597
申请日：2006-07-05
申请人： Jyh-Fong Lin , Jung-Chang Liu , Peir-Weir Chen , Ying-Che Tseng , Did-Min Shih
发明人： Jyh-Fong Lin , Jung-Chang Liu , Peir-Weir Chen , Ying-Che Tseng , Did-Min Shih
IPC分类号： H04B1/00
CPC分类号： H04B1/0082
摘要： A wireless communication device. The wireless communication device comprises first and second programmable frequency dividers, a mixer, a modulator, a phase detector, and a variable controlled oscillator. The first programmable frequency divider divides the frequency of a reference signal by a factor N to generate a modulating signal. The second programmable frequency divider divides the reference signal by a factor M and outputs a frequency-divided signal. The facts N and M are positive integers. The mixer down-converting a transmission signal according the divided signal and outputs a translation-loop signal. The modulator modulates the modulating signal with baseband signals, and outputs a comparison signal. The phase detector detects a phase difference between the comparison signal and the translation-loop signal. The variable controlled oscillator modifies the transmission signals according to an output of the phase detector.
摘要翻译：无线通信设备。无线通信设备包括第一和第二可编程分频器，混频器，调制器，相位检测器和可变控制振荡器。第一可编程分频器将参考信号的频率除以因子N以产生调制信号。第二可编程分频器将参考信号除以因子M并输出分频信号。事实N和M是正整数。混频器根据分频信号对传输信号进行下变频转换，并输出平移环路信号。调制器用基带信号调制调制信号，并输出比较信号。相位检测器检测比较信号和平移环路信号之间的相位差。可变控制振荡器根据相位检测器的输出修改发送信号。

2. 发明授权

US07639084B2 Power amplifier with nonlinear compensation, and method thereof 有权
标题翻译：具有非线性补偿功率放大器及其方法
公开(公告)号：US07639084B2
公开(公告)日：2009-12-29
申请号：US11609056
申请日：2006-12-11
申请人： Che-Hung Liao , Jung-Chang Liu , Ying-Che Tseng , Did-Min Shih
发明人： Che-Hung Liao , Jung-Chang Liu , Ying-Che Tseng , Did-Min Shih
IPC分类号： H03F3/04
CPC分类号： H03F1/083 , H03F1/3205 , H03F3/191 , H03F2200/181 , H03F2200/492
摘要： A power amplifier amplifying an input signal is provided, comprising a power amplifier circuit, a bias circuit, and a compensation circuit. The power amplifier circuit has an input impedance responsive to the input signal, and amplifies the input signal to generate an output signal. The bias circuit is coupled to the power amplifier circuit, generates a DC bias signal to the power amplifier so that the power amplifier amplifies the input signal. The compensation circuit is coupled to the power amplifier circuit, provides a compensation impedance responsive to the input signal such that a combination of the input impedance and the compensation impedance is substantially constant regardless of the input signal.
摘要翻译：提供放大输入信号的功率放大器，包括功率放大器电路，偏置电路和补偿电路。功率放大器电路具有响应于输入信号的输入阻抗，并放大输入信号以产生输出信号。偏置电路耦合到功率放大器电路，产生到功率放大器的直流偏置信号，使功率放大器放大输入信号。补偿电路耦合到功率放大器电路，提供响应于输入信号的补偿阻抗，使得输入阻抗和补偿阻抗的组合基本上恒定，而与输入信号无关。

3. 发明申请

US20080136529A1 POWER AMPLIFIER WITH NONLINEAR COMPENSATION, AND METHOD THEREOF 有权
标题翻译：具有非线性补偿的功率放大器及其方法
公开(公告)号：US20080136529A1
公开(公告)日：2008-06-12
申请号：US11609056
申请日：2006-12-11
申请人： Che-Hung Liao , Jung-Chang Liu , Ying-Che Tseng , Did-Min Shih
发明人： Che-Hung Liao , Jung-Chang Liu , Ying-Che Tseng , Did-Min Shih
IPC分类号： H03F3/191
CPC分类号： H03F1/083 , H03F1/3205 , H03F3/191 , H03F2200/181 , H03F2200/492
摘要： A power amplifier amplifying an input signal is provided, comprising a power amplifier circuit, a bias circuit, and a compensation circuit. The power amplifier circuit has an input impedance responsive to the input signal, and amplifies the input signal to generate an output signal. The bias circuit is coupled to the power amplifier circuit, generates a DC bias signal to the power amplifier so that the power amplifier amplifies the input signal. The compensation circuit is coupled to the power amplifier circuit, provides a compensation impedance responsive to the input signal such that a combination of the input impedance and the compensation impedance is substantially constant regardless of the input signal.
摘要翻译：提供放大输入信号的功率放大器，包括功率放大器电路，偏置电路和补偿电路。功率放大器电路具有响应于输入信号的输入阻抗，并放大输入信号以产生输出信号。偏置电路耦合到功率放大器电路，产生到功率放大器的直流偏置信号，使功率放大器放大输入信号。补偿电路耦合到功率放大器电路，提供响应于输入信号的补偿阻抗，使得输入阻抗和补偿阻抗的组合基本上恒定，而与输入信号无关。

4. 发明申请

US20060164168A1 Power amplifier circuit and method thereof 有权
标题翻译：功率放大器电路及其方法
公开(公告)号：US20060164168A1
公开(公告)日：2006-07-27
申请号：US11336261
申请日：2006-01-19
申请人： Jung-Chang Liu , Che-Hung Liao , Sen-You Liu , Did-Min Shih
发明人： Jung-Chang Liu , Che-Hung Liao , Sen-You Liu , Did-Min Shih
IPC分类号： H03F3/04
CPC分类号： H03F3/189 , H03F3/72
摘要： A power amplifier circuit amplifying an input signal to an output signal and a method thereof. The power amplifier circuit comprises a ramp controller, a current source, and a first amplification stage. The ramp controller receives an enable signal to generate a ramp signal. The current source is coupled to the ramp controller, produces a ramp current by the ramp signal. The first amplification stage is coupled to the current source, comprises a first supply voltage input coupled to a fixed supply voltage, and is biased by the ramp current to amplify the input signal such that an envelope of the output signal is a ramp.
摘要翻译：将输入信号放大为输出信号的功率放大器电路及其方法。功率放大器电路包括斜坡控制器，电流源和第一放大级。斜坡控制器接收使能信号以产生斜坡信号。电流源耦合到斜坡控制器，通过斜坡信号产生斜坡电流。第一放大级耦合到电流源，包括耦合到固定电源电压的第一电源电压输入，并被斜坡电流偏置以放大输入信号，使得输出信号的包络是斜坡。

5. 发明授权

US07362179B2 Power amplifier circuit and method thereof 有权
标题翻译：功率放大器电路及其方法
公开(公告)号：US07362179B2
公开(公告)日：2008-04-22
申请号：US11336261
申请日：2006-01-19
申请人： Jung-Chang Liu , Che-Hung Liao , Sen-You Liu , Did-Min Shih
发明人： Jung-Chang Liu , Che-Hung Liao , Sen-You Liu , Did-Min Shih
IPC分类号： H03F3/04
CPC分类号： H03F3/189 , H03F3/72
摘要： A power amplifier circuit amplifying an input signal to an output signal and a method thereof. The power amplifier circuit comprises a ramp controller, a current source, and a first amplification stage. The ramp controller receives an enable signal to generate a ramp signal. The current source is coupled to the ramp controller, produces a ramp current by the ramp signal. The first amplification stage is coupled to the current source, comprises a first supply voltage input coupled to a fixed supply voltage, and is biased by the ramp current to amplify the input signal such that an envelope of the output signal is a ramp.
摘要翻译：放大输入信号到输出信号的功率放大器电路及其方法。功率放大器电路包括斜坡控制器，电流源和第一放大级。斜坡控制器接收使能信号以产生斜坡信号。电流源耦合到斜坡控制器，通过斜坡信号产生斜坡电流。第一放大级耦合到电流源，包括耦合到固定电源电压的第一电源电压输入，并被斜坡电流偏置以放大输入信号，使得输出信号的包络是斜坡。

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