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1. 发明授权

US07378908B2 Variable gain differential amplifier, and variable degeneration impedance control device and method for use in the same 失效
标题翻译：可变增益差分放大器和可变退化阻抗控制装置及其使用方法
公开(公告)号：US07378908B2
公开(公告)日：2008-05-27
申请号：US11349171
申请日：2006-02-08
申请人： Chun-deok Suh , Hoon-tae Kim , Jung-eun Lee
发明人： Chun-deok Suh , Hoon-tae Kim , Jung-eun Lee
IPC分类号： H03F3/45
CPC分类号： H03G1/0029
摘要： Disclosed are a variable gain differential amplifier, and variable degeneration impedance control device and method for use in the variable gain differential amplifier, which can adjust an amplification gain and ensure linearity. A DC level of a differential signal to be amplified by the amplifier is adjusted according to a control signal to adjust a gain of the amplifier, and the impedance of a variable degeneration impedance part is adjusted according to the differential signal of which the DC level is adjusted. That is, the gain of the differential amplifier is adjusted and the linearity is ensured by varying the impedance of the variable degeneration impedance part using the differential input signal of which the DC level is adjusted.
摘要翻译：本发明公开了一种可变增益差分放大器和可变衰减阻抗控制装置及其在可变增益差分放大器中的应用，可以调节放大增益并确保线性度。根据控制信号调整由放大器放大的差分信号的直流电平，以调整放大器的增益，并且根据直流电平的差分信号来调节可变衰减阻抗部分的阻抗调整。也就是说，通过使用调整DC电平的差分输入信号改变可变衰减阻抗部分的阻抗来调节差分放大器的增益，并确保线性度。

2. 发明申请

US20060186961A1 Variable gain differential amplifier, and variable degeneration impedance control device and method for use in the same 失效
标题翻译：可变增益差分放大器和可变退化阻抗控制装置及其使用方法
公开(公告)号：US20060186961A1
公开(公告)日：2006-08-24
申请号：US11349171
申请日：2006-02-08
申请人： Chun-deok Suh , Hoon-tae Kim , Jung-eun Lee
发明人： Chun-deok Suh , Hoon-tae Kim , Jung-eun Lee
IPC分类号： H03G3/12
CPC分类号： H03G1/0029
摘要： Disclosed are a variable gain differential amplifier, and variable degeneration impedance control device and method for use in the variable gain differential amplifier, which can adjust an amplification gain and ensure linearity. A DC level of a differential signal to be amplified by the amplifier is adjusted according to a control signal to adjust a gain of the amplifier, and the impedance of a variable degeneration impedance part is adjusted according to the differential signal of which the DC level is adjusted. That is, the gain of the differential amplifier is adjusted and the linearity is ensured by varying the impedance of the variable degeneration impedance part using the differential input signal of which the DC level is adjusted.
摘要翻译：本发明公开了一种可变增益差分放大器和可变衰减阻抗控制装置及其在可变增益差分放大器中的应用，可以调节放大增益并确保线性度。根据控制信号调整由放大器放大的差分信号的直流电平，以调整放大器的增益，并且根据直流电平的差分信号来调节可变衰减阻抗部分的阻抗调整。也就是说，通过使用调整DC电平的差分输入信号改变可变衰减阻抗部分的阻抗来调节差分放大器的增益，并确保线性度。

3. 发明授权

US07345551B2 Frequency synthesizer for mixing reference frequencies 失效
标题翻译：用于混合参考频率的频率合成器
公开(公告)号：US07345551B2
公开(公告)日：2008-03-18
申请号：US11353972
申请日：2006-02-15
申请人： Choong-yul Cha , Hoon-tae Kim , Chun-deok Suh
发明人： Choong-yul Cha , Hoon-tae Kim , Chun-deok Suh
IPC分类号： H04B1/26
CPC分类号： H03B21/04 , H03L7/18
摘要： A frequency synthesizer for mixing reference frequencies using at least one control signal has a local oscillator, frequency dividers for dividing a frequency generated from the local oscillator and generating at least one control signal, and a single side band (SSB) mixer for mixing the reference frequencies, using the frequency generated from the local oscillator and the control signal. The frequency synthesizer has a simplified structure, and can easily mix reference frequency signals without a need for additional power.
摘要翻译：用于使用至少一个控制信号混合参考频率的频率合成器具有本地振荡器，用于分频从本地振荡器产生的频率并产生至少一个控制信号的分频器，以及用于混合参考的单边带（SSB）混频器频率，使用从本地振荡器产生的频率和控制信号。频率合成器具有简化的结构，并且可以容易地混合参考频率信号，而不需要额外的功率。

4. 发明申请

US20060183455A1 Frequency synthesizer for mixing reference frequencies 失效
标题翻译：用于混合参考频率的频率合成器
公开(公告)号：US20060183455A1
公开(公告)日：2006-08-17
申请号：US11353972
申请日：2006-02-15
申请人： Choong-yul Cha , Hoon-tae Kim , Chun-deok Suh
发明人： Choong-yul Cha , Hoon-tae Kim , Chun-deok Suh
IPC分类号： H04B1/26
CPC分类号： H03B21/04 , H03L7/18
摘要： A frequency synthesizer for mixing reference frequencies using at least one control signal has a local oscillator, frequency dividers for dividing a frequency generated from the local oscillator and generating at least one control signal, and a single side band (SSB) mixer for mixing the reference frequencies, using the frequency generated from the local oscillator and the control signal. The frequency synthesizer has a simplified structure, and can easily mix reference frequency signals without a need for additional power.
摘要翻译：用于使用至少一个控制信号混合参考频率的频率合成器具有本地振荡器，用于分频从本地振荡器产生的频率并产生至少一个控制信号的分频器，以及用于混合参考的单边带（SSB）混频器频率，使用从本地振荡器产生的频率和控制信号。频率合成器具有简化的结构，并且可以容易地混合参考频率信号，而不需要额外的功率。

5. 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。

6. 发明授权

US07342526B2 Digital-to-analog converter using plural transistors having the same operating characteristics 有权
标题翻译：使用具有相同操作特性的多个晶体管的数模转换器
公开(公告)号：US07342526B2
公开(公告)日：2008-03-11
申请号：US11347218
申请日：2006-02-06
申请人： Jung-eun Lee , Han-seung Lee , Hoon-tae Kim
发明人： Jung-eun Lee , Han-seung Lee , Hoon-tae Kim
IPC分类号： H03M1/66
CPC分类号： H03M1/74 , H03M1/0863
摘要： A digital-to-analog converter converts a digital input signal into an analog signal. The digital-to-analog converter includes: a power-supply unit for outputting voltages of different magnitudes through plural output terminals thereof; plural switches connected to the plural output terminals, which are controlled on and off, and are for applying the output voltages of the power-supply unit or a ground voltage to a next stage; and plural source transistors connected to the plural switches for outputting currents of magnitudes corresponding to the voltages applied from the respective connected switches of the plural switches. The plural source transistors are designed to have the same operating characteristics, thereby improving glitch characteristics.
摘要翻译：数模转换器将数字输入信号转换为模拟信号。数模转换器包括：电源单元，用于通过其多个输出端子输出不同幅度的电压; 连接到多个输出端子的多个开关，其被控制为开和关，并且用于将电源单元的输出电压或地电压施加到下一级; 以及连接到所述多个开关的多个源极晶体管，用于输出对应于从所述多个开关的各个连接的开关施加的电压的电压。多个源极晶体管被设计成具有相同的工作特性，从而改善毛刺特性。

7. 发明申请

US20060176202A1 Digital-to-analog converter using plural transistors having the same operating characteristics 有权
标题翻译：使用具有相同操作特性的多个晶体管的数模转换器
公开(公告)号：US20060176202A1
公开(公告)日：2006-08-10
申请号：US11347218
申请日：2006-02-06
申请人： Jung-eun Lee , Han-seung Lee , Hoon-tae Kim
发明人： Jung-eun Lee , Han-seung Lee , Hoon-tae Kim
IPC分类号： H03M1/66
CPC分类号： H03M1/74 , H03M1/0863
摘要： A digital-to-analog converter converts a digital input signal into an analog signal. The digital-to-analog converter includes: a power-supply unit for outputting voltages of different magnitudes through plural output terminals thereof; plural switches connected to the plural output terminals, which are controlled on and off, and are for applying the output voltages of the power-supply unit or a ground voltage to a next stage; and plural source transistors connected to the plural switches for outputting currents of magnitudes corresponding to the voltages applied from the respective connected switches of the plural switches. The plural source transistors are designed to have the same operating characteristics, thereby improving glitch characteristics.
摘要翻译：数模转换器将数字输入信号转换为模拟信号。数模转换器包括：电源单元，用于通过其多个输出端子输出不同幅度的电压; 连接到多个输出端子的多个开关，其被控制为开和关，并且用于将电源单元的输出电压或接地电压施加到下一级; 以及连接到所述多个开关的多个源极晶体管，用于输出对应于从所述多个开关的各个连接的开关施加的电压的电压。多个源极晶体管被设计成具有相同的工作特性，从而改善毛刺特性。

8. 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。

9. 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。

10. 发明授权

US07205876B2 Inductor for radio frequency integrated circuit 失效
标题翻译：射频集成电路用电感器
公开(公告)号：US07205876B2
公开(公告)日：2007-04-17
申请号：US10660801
申请日：2003-09-12
申请人： Kwang-du Lee , Hoon-tae Kim , Gea-ok Cho
发明人： Kwang-du Lee , Hoon-tae Kim , Gea-ok Cho
IPC分类号： H01F5/00
CPC分类号： H01L23/5227 , H01F17/0013 , H01F17/0033 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： An inductor used in a radio frequency integrated circuit is disclosed. The inductor includes a plurality of unit inductors each having a vertical spiral structure, wherein a vertical cross-section of at least one unit inductor selected from the plurality of unit inductors is an inverted trapezoid.
摘要翻译：公开了一种用于射频集成电路中的电感器。电感器包括多个具有垂直螺旋结构的单元电感器，其中从多个单元电感器中选择的至少一个单元电感器的垂直截面是倒梯形。

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