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1. 发明授权

US07548124B2 System and method for self calibrating voltage-controlled oscillator 有权
标题翻译：用于自校准压控振荡器的系统和方法
公开(公告)号：US07548124B2
公开(公告)日：2009-06-16
申请号：US11586655
申请日：2006-10-26
申请人： Hyun Soo Chae , Jung Eun Lee , Chun Deok Suh , Hoon Tae Kim
发明人： Hyun Soo Chae , Jung Eun Lee , Chun Deok Suh , Hoon Tae Kim
IPC分类号： H03L7/113
CPC分类号： H03L7/087 , H03L7/099 , H03L7/193 , H03L2207/06
摘要： A system and a method for self calibrating a voltage-controlled oscillator (VCO). In the system, a mode controller generates a control signal for each of an automatic band selection mode, an automatic gain tuning mode, and a phase-locking mode, from a frequency comparison result between a reference clock signal and a divided clock signal which is generated by dividing a frequency of an oscillation signal, and thereby controls the VCO, so that the VCO may generate the oscillation signal which is automatically phase-locked in a target frequency with an optimal state.
摘要翻译：一种用于自校准压控振荡器（VCO）的系统和方法。在该系统中，模式控制器根据参考时钟信号和分频时钟信号之间的频率比较结果，生成自动频带选择模式，自动增益调谐模式和锁相模式中的每一个的控制信号通过分频振荡信号产生，从而控制VCO，使得VCO可以产生具有最佳状态的目标频率中自动锁相的振荡信号。

2. 发明授权

US07536163B2 Apparatus and method generating multi RF tone signals in UWB communication system 失效
标题翻译：在UWB通信系统中产生多个RF音频信号的装置和方法
公开(公告)号：US07536163B2
公开(公告)日：2009-05-19
申请号：US11136363
申请日：2005-05-25
申请人： Min-suk Kang , Tuan-anh Phan , Eun-chul Park , Chun-deok Suh , Chang-wam Kim , Sang-gug Lee
发明人： Min-suk Kang , Tuan-anh Phan , Eun-chul Park , Chun-deok Suh , Chang-wam Kim , Sang-gug Lee
IPC分类号： H04B1/26
CPC分类号： H04B1/0032 , H04B1/28
摘要： An apparatus and method for converting a frequency of a high frequency signal received from an antenna in an ultra wide band communication system transmitting and receiving using at least two reference frequencies. The method includes generating generation frequencies having frequencies set to convert the frequency of the high frequency signal and mixing the frequency of the high frequency signal and the generation frequencies in at least two stages.
摘要翻译：一种用于在使用至少两个参考频率发送和接收的超宽带通信系统中转换从天线接收的高频信号的频率的装置和方法。该方法包括生成具有设定频率的生成频率，以转换高频信号的频率，并且将至少两个阶段的高频信号的频率和生成频率混合。

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

US20070257742A1 Source coupled differential complementary colpitts oscillator 失效
标题翻译：源耦合差分互补colpitts振荡器
公开(公告)号：US20070257742A1
公开(公告)日：2007-11-08
申请号：US11600732
申请日：2006-11-17
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： H03B5/08
CPC分类号： H03B5/1212 , H03B5/1228
摘要： A source coupled differential complementary Colpitts oscillator is described, which enables a differential oscillation and also can improve phase noise performance by source-coupling a complementary Colpitts oscillator using an inductor. A differential complementary Colpitts oscillator includes: a plurality of complementary Colpitts oscillators and a source coupler which couples a source node of the plurality of complementary Colpitts oscillators, enables the Colpitts oscillators to differentially oscillate.
摘要翻译：描述了源耦合差分互补Colpitts振荡器，其实现差分振荡，并且还可以通过使用电感器源耦合互补Colpitts振荡器来改善相位噪声性能。差分互补Colpitts振荡器包括：多个互补的Colpitts振荡器和耦合多个互补Colpitts振荡器的源节点的源耦合器使得Colpitts振荡器能够差分振荡。

5. 发明申请

US20070159259A1 Frequency synthesizing apparatus and method having injection-locked quadrature VCO in RF transceiver 有权
标题翻译： RF收发器中具有注入锁相正交VCO的频率合成装置和方法
公开(公告)号：US20070159259A1
公开(公告)日：2007-07-12
申请号：US11447887
申请日：2006-06-07
申请人： Chun Deok Suh , Jeong Wook Koh , Hoon Tae Kim
发明人： Chun Deok Suh , Jeong Wook Koh , Hoon Tae Kim
IPC分类号： H03L7/00
CPC分类号： H03L7/24 , H03B21/02 , H03L7/0995
摘要： A frequency synthesizing apparatus and method having an injection-locked quadrature VCO in an RF transceiver is provided. In the frequency synthesizer, an I signal following a frequency of a high frequency signal that is input using the injection-locked quadrature VCO and a Q signal thereof are simultaneously generated to have an appropriate driving power. Accordingly, the I signal and the Q signal thereof that are generated in the injection-locked quadrature VCO may be utilized as a local signal for frequency up/down-conversion, without being buffered. An output of an SSB mixer may be directly input into the injection-locked quadrature VCO. Also, high frequency signals that are generated in another circuit such as the SSB mixer, a PLL, or a VCO may be selected to be input into the injection-locked quadrature VCO by a selector.
摘要翻译：提供了一种在RF收发器中具有注入锁定正交VCO的频率合成装置和方法。在频率合成器中，同时产生跟随使用注入锁定正交VCO输入的高频信号的频率的I信号及其Q信号以具有适当的驱动功率。因此，在注入锁定正交VCO中产生的I信号和Q信号可以用作用于上变频/下变频的本地信号，而不被缓冲。 SSB混频器的输出可以直接输入到注入锁相正交VCO中。此外，可以选择在诸如SSB混频器，PLL或VCO的另一电路中生成的高频信号，以通过选择器输入到注入锁定正交VCO中。

6. 发明申请

US20060170507A1 Quadrature signal generator for tuning phases of all of four generated quadrature signals 失效
标题翻译：正交信号发生器用于所有四个生成的正交信号的调谐相位
公开(公告)号：US20060170507A1
公开(公告)日：2006-08-03
申请号：US11344061
申请日：2006-02-01
申请人： Eun-chul Park , Chun-deok Suh , Choong-yul Cha
发明人： Eun-chul Park , Chun-deok Suh , Choong-yul Cha
IPC分类号： H03K3/06
CPC分类号： H03B27/00 , H03H7/21 , H03H2007/0192
摘要： A quadrature signal generator capable of phase-tuning with respect to all of four generated quadrature signals. The quadrature signal generator includes four phase tuning units each having two input terminals, one receiving a differential signal, the other being grounded, and changing a phase of the differential signal to thereby generate quadrature signals. Accordingly, it is possible to tune phases of all the four generated quadrature signals. It is also possible to prevent the amplitude of quadrature signals from being deviated from a reference value.
摘要翻译：能够相对于所有四个生成的正交信号进行相位调谐的正交信号发生器。正交信号发生器包括四个相位调谐单元，每个相位调谐单元具有两个输入端子，一个接收差分信号，另一个接地，并且改变差分信号的相位从而产生正交信号。因此，可以调整所有四个生成的正交信号的相位。也可以防止正交信号的幅度偏离参考值。

7. 发明授权

US07397317B2 Quadrature signal generator for tuning phases of all of four generated quadrature signals 失效
标题翻译：正交信号发生器用于所有四个生成的正交信号的调谐相位
公开(公告)号：US07397317B2
公开(公告)日：2008-07-08
申请号：US11344061
申请日：2006-02-01
申请人： Eun-chul Park , Chun-deok Suh , Choong-yul Cha
发明人： Eun-chul Park , Chun-deok Suh , Choong-yul Cha
IPC分类号： H03H11/16
CPC分类号： H03B27/00 , H03H7/21 , H03H2007/0192
摘要： A quadrature signal generator capable of phase-tuning with respect to all of four generated quadrature signals. The quadrature signal generator includes four phase tuning units each having two input terminals, one receiving a differential signal, the other being grounded, and changing a phase of the differential signal to thereby generate quadrature signals. Accordingly, it is possible to tune phases of all the four generated quadrature signals. It is also possible to prevent the amplitude of quadrature signals from being deviated from a reference value.
摘要翻译：能够相对于所有四个生成的正交信号进行相位调谐的正交信号发生器。正交信号发生器包括四个相位调谐单元，每个相位调谐单元具有两个输入端子，一个接收差分信号，另一个接地，并且改变差分信号的相位从而产生正交信号。因此，可以调整所有四个生成的正交信号的相位。也可以防止正交信号的幅度偏离参考值。

8. 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。

9. 发明申请

US20060181338A1 Stacked CMOS current mirror using MOSFETs having different threshold voltages 审中-公开
标题翻译：使用具有不同阈值电压的MOSFET的叠层CMOS电流镜
公开(公告)号：US20060181338A1
公开(公告)日：2006-08-17
申请号：US11354944
申请日：2006-02-16
申请人： Jeongwook Koh , Chun-deok Suh
发明人： Jeongwook Koh , Chun-deok Suh
IPC分类号： G05F1/10
CPC分类号： G05F3/262
摘要： A stacked CMOS current mirror using metal oxide semiconductor field effect transistors (MOSFETs) having different threshold voltages is disclosed. The stacked CMOS current mirror includes a first MOSFET having a source and a gate which are connected to a first input current terminal, a second MOSFET having a source connected to a drain of the first MOSFET, a gate connected to the gate of the first MOSFET, and a drain connected to ground, a third MOSFET having a drain connected to a second input current terminal and a gate connected to the source and the gate of the first MOSFET, and a fourth MOSFET having a drain connected to a source of the third MOSFET, a gate connected to the source and the gate of the first MOSFET, and a source connected to the ground.
摘要翻译：公开了使用具有不同阈值电压的金属氧化物半导体场效应晶体管（MOSFET）的叠层CMOS电流镜。堆叠的CMOS电流镜包括具有连接到第一输入电流端子的源极和栅极的第一MOSFET，具有连接到第一MOSFET的漏极的源极的第二MOSFET，连接到第一MOSFET的栅极的栅极以及与地相连的漏极，具有连接到第二输入电流端子的漏极和连接到第一MOSFET的源极和栅极的栅极的第三MOSFET和具有连接到第三MOSFET源极的漏极的第四MOSFET MOSFET，连接到源极和第一MOSFET的栅极的栅极，以及连接到地的源极。

10. 发明授权

US07471159B2 Phase-locked loop for stably adjusting frequency-band of voltage-controlled oscillator and phase locking method 有权
标题翻译：用于稳压调压振荡器频带的锁相环和锁相方法
公开(公告)号：US07471159B2
公开(公告)日：2008-12-30
申请号：US11595887
申请日：2006-11-13
申请人： Jung Eun Lee , Chun Deok Suh , Hoon Tae Kim
发明人： Jung Eun Lee , Chun Deok Suh , Hoon Tae Kim
IPC分类号： H03L7/08 , H03L7/095 , H03L7/099 , H03L7/10
CPC分类号： H03L7/10 , Y10S331/02
摘要： A phase-locked loop (PLL) for stably adjusting a frequency band of a voltage-controlled oscillator and a phase locking method. In the PLL, a frequency band controller alters the frequency band selection digital value in response to an input clock signal and an oscillation control signal generated from an LPF of a basic PLL circuit, and thus a voltage-controlled oscillator of the basic PLL circuit alters the frequency of an output clock signal in response to the oscillation control signal and the frequency band selection digital value. The output clock signal is rapidly and stably phase-locked at a target frequency depending on the frequency band selection digital value.
摘要翻译：用于稳定地调节压控振荡器的频带的锁相环（PLL）和相位锁定方法。在PLL中，频带控制器响应于从基本PLL电路的LPF产生的输入时钟信号和振荡控制信号来改变频带选择数字值，因此基本PLL电路的压控振荡器改变响应于振荡控制信号和频带选择数字值的输出时钟信号的频率。根据频带选择数字值，输出时钟信号以目标频率快速稳定地锁相。

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