公开(公告)号：US08265586B2

公开(公告)日：2012-09-11

申请号：US12212725

申请日：2008-09-18

Applicant: Hee-Hyun Lee ,  Hoon-Tae Kim

Inventor： Hee-Hyun Lee ,  Hoon-Tae Kim

IPC: H04B1/16

CPC classification number: H04B1/123 ,  H04B1/109 ,  H04B1/18

Abstract: A low-noise amplification apparatus and method in a receiver in a wireless communication system are provided, in which a main amplifier amplifies a received signal, a sub-amplifier amplifies a third-order harmonic component more strongly than a signal component in the received signal and cancels the third-order harmonic component by combining the amplified signal with the signal received from the main amplifier. A noise eliminator amplifies noise included in the received signal and eliminates the noise by combining the amplified noise with the signal received from the main amplifier or the signal received from the sub-amplifier.

Abstract translation: 提供了一种在无线通信系统中的接收机中的低噪声放大装置和方法，其中主放大器放大接收信号，子放大器比接收信号中的信号分量更强地放大三次谐波分量 并且通过将放大的信号与从主放大器接收的信号组合来取消三次谐波分量。 噪声消除器放大接收信号中包含的噪声，并通过将放大的噪声与从主放大器接收的信号或从子放大器接收的信号组合来消除噪声。

公开(公告)号：USD641396S1

公开(公告)日：2011-07-12

申请号：US29316763

申请日：2009-10-29

Applicant: Ji-Sang Park ,  Hoon-Tae Kim ,  Jong-Kyu Kim

Designer： Ji-Sang Park ,  Hoon-Tae Kim ,  Jong-Kyu Kim

公开(公告)号：US07656238B2

公开(公告)日：2010-02-02

申请号：US11447887

申请日：2006-06-07

Applicant: Chun Deok Suh ,  Jeong Wook Koh ,  Hoon Tae Kim

Inventor： Chun Deok Suh ,  Jeong Wook Koh ,  Hoon Tae Kim

IPC: H03B21/01 ,  H03L7/00

CPC classification number: H03L7/24 ,  H03B21/02 ,  H03L7/0995

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07450925B2

公开(公告)日：2008-11-11

申请号：US11337573

申请日：2006-01-24

Applicant: Hyun-su Chae ,  Hoon-tae Kim ,  Eun-chul Park

Inventor： Hyun-su Chae ,  Hoon-tae Kim ,  Eun-chul Park

IPC: H04B1/26

CPC classification number: H04B1/28 ,  H04B1/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07397316B2

公开(公告)日：2008-07-08

申请号：US11342611

申请日：2006-01-31

Applicant: Hyun-su Chae ,  Hoon-tae Kim ,  Jung-eun Lee

Inventor： Hyun-su Chae ,  Hoon-tae Kim ,  Jung-eun Lee

IPC: H03K3/03 ,  H03B27/00

CPC classification number: H03K3/0322

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070249293A1

公开(公告)日：2007-10-25

申请号：US11586655

申请日：2006-10-26

Applicant: Hyun Soo Chae ,  Jung Eun Lee ,  Chun Deok Suh ,  Hoon Tae Kim

Inventor： Hyun Soo Chae ,  Jung Eun Lee ,  Chun Deok Suh ,  Hoon Tae Kim

IPC: H04B1/40 ,  H04B1/06 ,  H04B7/00

CPC classification number: H03L7/087 ,  H03L7/099 ,  H03L7/193 ,  H03L2207/06

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07205876B2

公开(公告)日：2007-04-17

申请号：US10660801

申请日：2003-09-12

Applicant: Kwang-du Lee ,  Hoon-tae Kim ,  Gea-ok Cho

Inventor： Kwang-du Lee ,  Hoon-tae Kim ,  Gea-ok Cho

IPC: H01F5/00

CPC classification number: H01L23/5227 ,  H01F17/0013 ,  H01F17/0033 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01L2924/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07847636B2

公开(公告)日：2010-12-07

申请号：US12352380

申请日：2009-01-12

Applicant: Choong-yul Cha ,  Hoon-tae Kim ,  Sang-gug Lee

Inventor： Choong-yul Cha ,  Hoon-tae Kim ,  Sang-gug Lee

IPC: H03F3/68

CPC classification number: H03F3/211 ,  H03F1/223 ,  H03F1/26 ,  H03F1/42 ,  H03F1/483 ,  H03F3/345 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/372 ,  H03F2200/39

Abstract: A low noise amplifier (LNA) for ultra wide band receives and amplifies identical RF signals in different frequency bands, and includes more than one pair of narrow band LNAs coupled in parallel, and a load circuit which increases load impedance of the entire circuit of the narrow band LNAs. The LNA can not only amplify the RF signal in the UWB but also obtain the low noise and the high gain that are features of the conventional narrow band LNA.

Abstract translation: 用于超宽带的低噪声放大器（LNA）在不同频带中接收和放大相同的RF信号，并且包括并联耦合的多于一对窄带LNA，以及增加整个电路的负载阻抗的负载电路 窄带LNA。 LNA不仅可以放大UWB中的RF信号，还可以获得作为传统窄带LNA特征的低噪声和高增益。

公开(公告)号：USD624956S1

公开(公告)日：2010-10-05

申请号：US29316754

申请日：2009-10-29

Applicant: Ji-Sang Park ,  Hoon-Tae Kim ,  Jong-Kyu Kim

Designer： Ji-Sang Park ,  Hoon-Tae Kim ,  Jong-Kyu Kim

公开(公告)号：US07725088B2

公开(公告)日：2010-05-25

申请号：US11475973

申请日：2006-06-28

Applicant: Choong-Yul Cha ,  Hoon Tae Kim ,  Chun Deok Suh

Inventor： Choong-Yul Cha ,  Hoon Tae Kim ,  Chun Deok Suh

IPC: H04B1/18

CPC classification number: H03B21/00 ,  H03B2200/0048

Abstract: A fast mode switching frequency synthesizing apparatus and method for operating in low power consumption. In the frequency synthesizer, according to a mode control signal, an SSB mixer selectively generates and outputs a signal having a frequency which is identical to an input signal RF or outputs a signal having a frequency which is a synthesized frequency of the input signals RF and LO. Frequency synthesized signals having a frequency which is a sum of frequencies of the input signals RF and LO, or a difference of frequencies therebetween, may be generated by changing wiring of a path switch according to a phase control signal.

Abstract translation: 一种用于低功耗运行的快速模式切换频率合成装置和方法。 在频率合成器中，根据模式控制信号，SSB混频器选择性地产生并输出具有与输入信号RF相同的频率的信号，或者输出具有作为输入信号RF的合成频率的频率的信号 LO。 可以通过根据相位控制信号改变路径开关的布线来产生具有作为输入信号RF和LO的频率之和的频率或其间的频率差的频率合成信号。