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1. 发明授权

US08750448B2 Frequency calibration apparatus of frequency synthesizer and frequency calibration method thereof 有权
标题翻译：频率合成器的频率校准装置及其频率校准方法
公开(公告)号：US08750448B2
公开(公告)日：2014-06-10
申请号：US12099749
申请日：2008-04-08
申请人： Dzmitry Mazkou , Hyun-su Chae
发明人： Dzmitry Mazkou , Hyun-su Chae
IPC分类号： H03D3/24
CPC分类号： H03L7/193 , H03L7/081 , H03L7/087 , H03L2207/06
摘要： A frequency calibration apparatus and method are provided. A frequency calibration method includes determining a frequency band according to results of frequency comparisons between a synchronized reference signal whose phase is synchronized to a phase of a prescale signal and a divided signal, and performing a Phase Locked Loop (PLL) operation on a reference signal and the divided signal at the determined frequency band to lock the divided signal.
摘要翻译：提供了一种频率校准装置和方法。频率校准方法包括根据与相位与预分频信号的相位同步的同步参考信号与分频信号之间的频率比较的结果确定频带，以及对参考信号执行锁相环（PLL）操作以及在确定的频带处的分频信号来锁定分频信号。

2. 发明申请

US20060178125A1 Receiver for wireless communication systems and I/O signal phase difference correction method therefor 失效
标题翻译：无线通信系统接收机及其I / O信号相位差校正方法
公开(公告)号：US20060178125A1
公开(公告)日：2006-08-10
申请号：US11337573
申请日：2006-01-24
申请人： Hyun-su Chae , Hoon-tae Kim , Eun-chul Park
发明人： Hyun-su Chae , Hoon-tae Kim , Eun-chul Park
IPC分类号： H04B1/26
CPC分类号： H04B1/28 , H04B1/30
摘要： A receiver includes first switches for applying either differential signals of an oscillator or a data signal of a transmitter to down-converting mixers; a frequency conversion unit for mixing and applying to the down-converting mixers quadrature signals generated from an arbitrary clock signal generator and the oscillator, and having a PPF for changing a phase difference of I/Q signals according to a control voltage externally applied; a phase difference detection part for checking a phase difference between the I/Q signals and generating the control voltage to be applied to the PPF according to the phase difference so as to correct the phase difference; third switches for applying the data signal processed through the down-converting mixers, filters, and amplifiers to A/D converters and applying the I/Q signals having a predetermined frequency to the phase difference detection part; and a control unit for switching the first and third switches.
摘要翻译：接收机包括用于将振荡器的差分信号或发射机的数据信号施加到下变频混频器的第一开关; 频率转换单元，用于混合并应用于从任意时钟信号发生器和振荡器产生的下变频混频器正交信号，并具有根据外部施加的控制电压来改变I / Q信号的相位差的PPF; 相位差检测部分，用于检查I / Q信号之间的相位差，并根据相位差产生要施加到PPF的控制电压，以校正相位差; 第三开关，用于将通过下变频混频器，滤波器和放大器处理的数据信号施加到A / D转换器，并将具有预定频率的I / Q信号施加到相位差检测部分; 以及用于切换第一和第三开关的控制单元。

3. 发明申请

US20090122937A1 FREQUENCY CALIBRATION APPARATUS OF FREQUENCY SYNTHESIZER AND FREQUENCY CALIBRATION METHOD THEREOF 有权
标题翻译：频率合成器的频率校准装置及其频率校准方法
公开(公告)号：US20090122937A1
公开(公告)日：2009-05-14
申请号：US12099749
申请日：2008-04-08
申请人： Dzmitry Maskou , Hyun-su Chae
发明人： Dzmitry Maskou , Hyun-su Chae
IPC分类号： H03D3/24
CPC分类号： H03L7/193 , H03L7/081 , H03L7/087 , H03L2207/06
摘要： A frequency calibration apparatus and method are provided. A frequency calibration method includes determining a frequency band according to results of frequency comparisons between a synchronized reference signal whose phase is synchronized to a phase of a prescale signal and a divided signal, and performing a Phase Locked Loop (PLL) operation on a reference signal and the divided signal at the determined frequency band to lock the divided signal.
摘要翻译：提供了一种频率校准装置和方法。频率校准方法包括根据与相位与预分频信号的相位同步的同步参考信号与分频信号之间的频率比较的结果确定频带，以及对参考信号执行锁相环（PLL）操作以及在确定的频带处的分频信号来锁定分频信号。

4. 发明申请

US20060181357A1 Ring oscillator for calibrating phase error and phase-error calibration method therefor 有权
标题翻译：用于校准相位误差和相位误差校准方法的振荡器
公开(公告)号：US20060181357A1
公开(公告)日：2006-08-17
申请号：US11342611
申请日：2006-01-31
申请人： Hyun-su Chae , Hoon-tae Kim , Jung-eun Lee
发明人： Hyun-su Chae , Hoon-tae Kim , Jung-eun Lee
IPC分类号： H03K3/03
CPC分类号： H03K3/0322
摘要： A ring oscillator and a phase error calibration method are provided. The ring oscillator may include a first voltage-current converter for controlling and outputting an amount of tail current Itail according to a magnitude of a first control voltage applied in feedback in a PLL circuit; a second voltage-current converter for controlling and outputting an amount of shift current according to a magnitude of a second control voltage applied from a system phase error detector; and differential amplifiers for controlling, for output signals, a delay time of signals based on the applied tail current amount and a shift time of the signals based on the shift current amount. Thus, a phase relation between in-phase and quadrature-phase signals outputted from the ring oscillator may be controlled.
摘要翻译：提供了环形振荡器和相位误差校准方法。环形振荡器可以包括第一电压 - 电流转换器，用于根据施加在PLL电路中的反馈中的第一控制电压的大小来控制和输出尾流量Itail的量; 第二电压电流转换器，用于根据从系统相位误差检测器施加的第二控制电压的大小来控制和输出移位电流量; 以及差分放大器，用于根据施加的尾电流量和基于移位电流量的信号的移位时间来控制输出信号的信号延迟时间。因此，可以控制从环形振荡器输出的同相和正交相位信号之间的相位关系。

5. 发明授权

US07450925B2 Receiver for wireless communication systems and I/Q signal phase difference correction method therefor 失效
标题翻译：无线通信系统接收机和I / Q信号相位差校正方法
公开(公告)号：US07450925B2
公开(公告)日：2008-11-11
申请号：US11337573
申请日：2006-01-24
申请人： Hyun-su Chae , Hoon-tae Kim , Eun-chul Park
发明人： Hyun-su Chae , Hoon-tae Kim , Eun-chul Park
IPC分类号： H04B1/26
CPC分类号： H04B1/28 , H04B1/30
摘要： A receiver includes first switches for applying either differential signals of an oscillator or a data signal of a transmitter to down-converting mixers; a frequency conversion unit for mixing and applying to the down-converting mixers quadrature signals generated from an arbitrary clock signal generator and the oscillator, and having a PPF for changing a phase difference of I/Q signals according to a control voltage externally applied; a phase difference detection part for checking a phase difference between the I/Q signals and generating the control voltage to be applied to the PPF according to the phase difference so as to correct the phase difference; third switches for applying the data signal processed through the down-converting mixers, filters, and amplifiers to A/D converters and applying the I/Q signals having a predetermined frequency to the phase difference detection part; and a control unit for switching the first and third switches.
摘要翻译：接收机包括用于将振荡器的差分信号或发射机的数据信号施加到下变频混频器的第一开关; 频率转换单元，用于混合并应用于从任意时钟信号发生器和振荡器产生的下变频混频器正交信号，并具有根据外部施加的控制电压来改变I / Q信号的相位差的PPF; 相位差检测部分，用于检查I / Q信号之间的相位差，并根据相位差产生要施加到PPF的控制电压，以校正相位差; 第三开关，用于将通过下变频混频器，滤波器和放大器处理的数据信号施加到A / D转换器，并将具有预定频率的I / Q信号施加到相位差检测部分; 以及用于切换第一和第三开关的控制单元。

6. 发明授权

US07397316B2 Ring oscillator for calibrating phase error and phase-error calibration method therefor 有权
标题翻译：用于校准相位误差和相位误差校准方法的振荡器
公开(公告)号：US07397316B2
公开(公告)日：2008-07-08
申请号：US11342611
申请日：2006-01-31
申请人： Hyun-su Chae , Hoon-tae Kim , Jung-eun Lee
发明人： Hyun-su Chae , Hoon-tae Kim , Jung-eun Lee
IPC分类号： H03K3/03 , H03B27/00
CPC分类号： H03K3/0322
摘要： A ring oscillator and a phase error calibration method are provided. The ring oscillator may include a first voltage-current converter for controlling and outputting an amount of tail current Itail according to a magnitude of a first control voltage applied in feedback in a PLL circuit; a second voltage-current converter for controlling and outputting an amount of shift current according to a magnitude of a second control voltage applied from a system phase error detector; and differential amplifiers for controlling, for output signals, a delay time of signals based on the applied tail current amount and a shift time of the signals based on the shift current amount. Thus, a phase relation between in-phase and quadrature-phase signals outputted from the ring oscillator may be controlled.
摘要翻译：提供了环形振荡器和相位误差校准方法。环形振荡器可以包括第一电压 - 电流转换器，用于根据施加在PLL电路中的反馈中的第一控制电压的大小来控制和输出尾流量Itail的量; 第二电压电流转换器，用于根据从系统相位误差检测器施加的第二控制电压的大小来控制和输出移位电流量; 以及差分放大器，用于根据施加的尾电流量和基于移位电流量的信号的移位时间来控制输出信号的信号延迟时间。因此，可以控制从环形振荡器输出的同相和正交相位信号之间的相位关系。

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