公开(公告)号：US20090168942A1

公开(公告)日：2009-07-02

申请号：US12317527

申请日：2008-12-23

Applicant: Yun-Young Choi ,  Hoon-Tae Kim

Inventor： Yun-Young Choi ,  Hoon-Tae Kim

IPC: H03D3/24 ,  H03L7/06

CPC classification number: H03L7/0814 ,  H03K5/145

Abstract: An apparatus and method for frequency synthesis using a Delay Locked Loop (DLL) are provided. The apparatus includes the DLL, an edge pulse generator, and an inductive-capacitive (LC) tank switch. If phases of a reference frequency signal and a feedback signal are the same and thus are locked, the DLL delays the reference frequency signal. The edge pulse generator generates a plurality of pulse signals representing phase delay amounts of signals. The LC tank switch combines the plurality of pulse signals and generates frequency.

Abstract translation: 提供了一种使用延迟锁定环（DLL）进行频率合成的装置和方法。 该装置包括DLL，边缘脉冲发生器和电感 - 电容（LC）槽开关。 如果参考频率信号和反馈信号的相位相同并因此被锁定，则DLL延迟参考频率信号。 边沿脉冲发生器产生表示信号的相位延迟量的多个脉冲信号。 LC箱开关组合多个脉冲信号并产生频率。

公开(公告)号：US20090061811A1

公开(公告)日：2009-03-05

申请号：US12262234

申请日：2008-10-31

Applicant: Eun Chul Park ,  Hyun Soo Chae ,  Hoon Tae Kim

Inventor： Eun Chul Park ,  Hyun Soo Chae ,  Hoon Tae Kim

IPC: H04B1/26 ,  H03B21/00

CPC classification number: H04B1/0082 ,  H03B21/02

Abstract: A frequency synthesizing apparatus and method for a multi-band radio frequency (RF) receiver is provided. The frequency synthesizing apparatus includes a simple circuit configuration with a single SSB mixer and thus, may synthesize six high frequency signals. Signals to be inputted into the SSB mixer include a first signal and a second signal. The first signal is generated based on a VCO and a PPF. Also, the second signal is selected from a plurality of frequency divided signals which are generated by dividing a signal generated in the VCO via a plurality of dividers.

Abstract translation: 提供了一种用于多频带射频（RF）接收机的频率合成装置和方法。 频率合成装置包括具有单个SSB混频器的简单电路配置，因此可以合成六个高频信号。 要输入到SSB混频器的信号包括第一信号和第二信号。 基于VCO和PPF产生第一信号。 而且，第二信号是通过经由多个分频器划分在VCO中产生的信号而产生的多个分频信号中选择的。

公开(公告)号：US07433706B2

公开(公告)日：2008-10-07

申请号：US10656152

申请日：2003-09-08

Applicant: Hoon-tae Kim ,  Gea-ok Cho

Inventor： Hoon-tae Kim ,  Gea-ok Cho

IPC: H04M1/00

CPC classification number: H04B1/0082 ,  H04B1/0003 ,  H04B1/005 ,  H04B1/0057 ,  H04B1/406

Abstract: A multiband RF transmitting and receiving apparatus and a method therefore is capable of using a control voltage from a phase locked loop (PLL) to control other components, as well as a voltage controlled oscillator (VCO), of a multiband RF transceiver. The multiband transmitting and receiving apparatus adjusts a capacitance value of a varactor in a power amplifier (PA) and a low noise amplifier (LNA) including an LC parallel resonance circuit, respectively, using the control voltage from the PLL and controls a current flowing to a mixer. Accordingly, the components in the multiband RF transceiver are able to operate a greater number of frequency bands than a single frequency band, thereby reducing the number of components required to design the multiband RF transceiver.

Abstract translation: 因此，多频带RF发射和接收装置和方法能够使用来自锁相环（PLL）的控制电压来控制多频RF收发器的其它组件以及压控振荡器（VCO）。 多频带发送和接收装置使用来自PLL的控制电压分别调节包括LC并联谐振电路的功率放大器（PA）和低噪声放大器（LNA）中的变容二极管的电容值，并控制流向 搅拌机 因此，多频带RF收发器中的组件能够操作比单个频带更多数量的频带，从而减少设计多频带RF收发器所需的组件的数量。

公开(公告)号：US20060178125A1

公开(公告)日：2006-08-10

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：US20060176202A1

公开(公告)日：2006-08-10

申请号：US11347218

申请日：2006-02-06

Applicant: Jung-eun Lee ,  Han-seung Lee ,  Hoon-tae Kim

Inventor： Jung-eun Lee ,  Han-seung Lee ,  Hoon-tae Kim

IPC: H03M1/66

CPC classification number: H03M1/74 ,  H03M1/0863

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06912114B2

公开(公告)日：2005-06-28

申请号：US10635472

申请日：2003-08-07

Applicant: Hoon-tae Kim ,  Gea-ok Cho

Inventor： Hoon-tae Kim ,  Gea-ok Cho

IPC: H01L27/02 ,  H01L27/08 ,  H01G4/228

CPC classification number: H01L27/0805

Abstract: A high-capacitance capacitor having a multi-layered vertical structure for use in an RF circuit is disclosed. The capacitor includes an upper electrode, a lower electrode, and a dielectric layer interposed between the two electrodes. A plurality of electrodes is formed in parallel in the dielectric layer in a diagonal direction. First electrodes, which are half of the plurality of electrodes, are coupled to only the upper electrode, while second electrodes, which are the other half of the plurality of electrodes, are coupled to only the lower electrode. The first electrodes and the second electrodes are alternately positioned in rows and columns. The capacitor does not require additional processes, thereby reducing complexity and cost of fabrication thereof.

Abstract translation: 公开了一种用于RF电路的具有多层垂直结构的高容量电容器。 电容器包括上电极，下电极和介于两个电极之间的电介质层。 在电介质层中沿对角线方向平行地形成多个电极。 作为多个电极中的一半的第一电极只耦合到上电极，而作为多个电极的另一半的第二电极仅耦合到下电极。 第一电极和第二电极交替地位于行和列中。 电容器不需要额外的工艺，从而降低其制造的复杂性和成本。

公开(公告)号：US08630370B2

公开(公告)日：2014-01-14

申请号：US13122300

申请日：2009-10-07

Applicant: Young-Taek Lee ,  Hoon-Tae Kim

Inventor： Young-Taek Lee ,  Hoon-Tae Kim

IPC: H03C3/00

CPC classification number: H04B1/0475 ,  H03C2200/0041 ,  H03D7/18 ,  H03D2200/0045 ,  H03F3/3022 ,  H03F2203/30031 ,  H04B2001/0491 ,  H04L27/364

Abstract: An apparatus and a method for increasing Error Vector Magnitude (EVM) performance representing quality of transmission signal are provided. The apparatus and the method suppress an image frequency component generated due to mismatch of IQ channels in order to transmit/receive a large amount of data without distortion in 4th generation wireless communication standard candidate technologies such as a Long Term Evolution (LTE) system and a mobile WiMax system. The apparatus includes a LOcal frequency (LO) buffer including an amplifier. The LO buffer controls the gain and the phase of the amplifier using a control bit for controlling resistor connection.

Abstract translation: 提供了一种用于增加表示传输信号质量的误差矢量幅度（EVM）性能的装置和方法。 该装置和方法抑制由于IQ信道不匹配而产生的图像频率分量，以便在诸如长期演进（LTE）系统和第四代无线通信标准候选技术的第四代无线通信标准候选技术中发送/接收大量数据而不失真 移动WiMax系统。 该装置包括包括放大器的LOcal频率（LO）缓冲器。 LO缓冲器使用用于控制电阻连接的控制位来控制放大器的增益和相位。

公开(公告)号：USD647131S1

公开(公告)日：2011-10-18

申请号：US29314206

申请日：2009-03-13

Applicant: Ji-Sang Park ,  Hoon-Tae Kim ,  Yun-Gi Hong

Designer： Ji-Sang Park ,  Hoon-Tae Kim ,  Yun-Gi Hong

公开(公告)号：US08027655B2

公开(公告)日：2011-09-27

申请号：US12292983

申请日：2008-12-02

Applicant: Hee-Hyun Lee ,  Hoon-Tae Kim ,  Jong-Won Choi

Inventor： Hee-Hyun Lee ,  Hoon-Tae Kim ,  Jong-Won Choi

IPC: H04B1/10

CPC classification number: H04B1/525

Abstract: A receiver apparatus for tracking and rejecting a Transmit (Tx) signal in a wireless communication system and an operation method thereof are provided. The receiver apparatus includes a controller for receiving channel frequency information of the Tx signal and for controlling an operation for tracking and rejecting a frequency of the Tx signal; a phase locked loop for generating an oscillation frequency by generating a control voltage according to the channel frequency information of the Tx signal under the control of the controller and for filtering a signal corresponding to the oscillation frequency among signals input to a low noise amplifier; and the low noise amplifier for amplifying power while minimizing noise of a signal filtered by the phase locked loop.

Abstract translation: 提供了一种用于在无线通信系统中跟踪和拒绝发送（Tx）信号的接收机装置及其操作方法。 接收机装置包括：控制器，用于接收Tx信号的信道频率信息，并控制用于跟踪和拒绝Tx信号频率的操作; 用于通过在控制器的控制下根据Tx信号的信道频率信息产生控制电压并且对输入到低噪声放大器的信号中对应于振荡频率的信号进行滤波来产生振荡频率的锁相环; 以及用于放大功率同时最小化由锁相环滤波的信号的噪声的低噪声放大器。

公开(公告)号：USD641038S1

公开(公告)日：2011-07-05

申请号：US29316762

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