公开(公告)号：US20080186094A1

公开(公告)日：2008-08-07

申请号：US12019779

申请日：2008-01-25

Applicant: Jong-Hyun LEE

Inventor： Jong-Hyun LEE

IPC: H03G3/20

CPC classification number: H03F1/301 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/12 ,  H03F2200/18 ,  H03F2200/411 ,  H03F2200/447 ,  H03F2200/451 ,  H03F2200/468

Abstract: An apparatus for a High Power Amplifier (HPA) in a wireless communication system is provided. In one example, the apparatus includes a temperature sensor for determining temperature, a controller for receiving the determined temperature and for controlling a gate bias voltage corresponding to the determined temperature and an amplifier for amplifying a Radio Frequency (RF) signal by using the controlled gate bias voltage.

Abstract translation: 提供了一种用于无线通信系统中的大功率放大器（HPA）的装置。 在一个示例中，该装置包括用于确定温度的温度传感器，用于接收所确定的温度并用于控制对应于所确定的温度的栅极偏置电压的控制器和用于通过使用受控门来放大射频（RF）信号的放大器 偏压。

公开(公告)号：US07359461B2

公开(公告)日：2008-04-15

申请号：US10423673

申请日：2003-04-24

Applicant: Jee-Yon Choi ,  Hyun-Ha Hong ,  Hae-Geun Kim ,  Jong-Hyun Lee

Inventor： Jee-Yon Choi ,  Hyun-Ha Hong ,  Hae-Geun Kim ,  Jong-Hyun Lee

IPC: H04L27/14

CPC classification number: H03K5/135 ,  H04L7/0276

Abstract: There are provided an apparatus and method for recovering a clock signal from a burst mode signal. A first delay delays an input data signal for half of a time period of the input data signal, and produces a first delay signal. An XOR gate adds the input data signal and the first delay signal provided from the first delay, and provides an inverted signal of the added signal. An OR gate adds an output signal of the XOR gate and a second delay signal, and provides the added signal as a recovered clock signal. A second delay delays the added signal provided from the OR gate for an integer multiple of a time period of the input data signal, and produces the second delay signal that is provided to the OR gate. The frequency of the recovered clock signal is not limited by any delay in the gate elements due to a phase transition of the input data signal occurring when every other packet is provided.

Abstract translation: 提供了一种用于从突发模式信号恢复时钟信号的装置和方法。 第一延迟将输入数据信号延迟输入数据信号的一半时间周期，并产生第一延迟信号。 XOR门将从第一延迟提供的输入数据信号和第一延迟信号相加，并提供相加信号的反相信号。 或门将XOR门和第二延迟信号的输出信号相加，并将附加的信号提供为恢复的时钟信号。 第二延迟延迟从或门提供的附加信号输入数据信号的时间周期的整数倍，并产生提供给或门的第二延迟信号。 恢复的时钟信号的频率不受限于由于当提供每隔一个分组时发生的输入数据信号的相位转变而导致门单元中的任何延迟。

公开(公告)号：US20080080277A1

公开(公告)日：2008-04-03

申请号：US11902413

申请日：2007-09-21

Applicant: Jong-hyun Lee

Inventor： Jong-hyun Lee

IPC: G01R31/26 ,  G11C29/04

CPC classification number: G01R31/2894 ,  G11C29/006 ,  G11C29/50 ,  G11C29/56 ,  G11C29/56008 ,  G11C2029/0403 ,  G11C2029/4002 ,  G11C2029/5002 ,  G11C2029/5606

Abstract: A method of analyzing a failure in a semiconductor integrated circuit device may include storing defects and analog characteristics correlated with the defects in a database, detecting a fail bit in a first wafer, measuring analog characteristics of the fail bit in the first wafer, and identifying which defect has caused the fail bit by comparing the measured analog characteristics with the stored analog characteristics.

Abstract translation: 分析半导体集成电路器件的故障的方法可以包括存储与数据库中的缺陷相关的缺陷和模拟特性，检测第一晶片中的故障位，测量第一晶片中的故障位的模拟特性，以及识别 通过将测量的模拟特性与存储的模拟特性进行比较，该缺陷导致了故障位。

公开(公告)号：US20080044712A1

公开(公告)日：2008-02-21

申请号：US11636697

申请日：2006-12-08

Applicant: Jae Jun Ko ,  Jong Hyun Lee ,  Seung Chan Oh ,  Jong Jin Yoon

Inventor： Jae Jun Ko ,  Jong Hyun Lee ,  Seung Chan Oh ,  Jong Jin Yoon

IPC: H01M8/24 ,  H01M8/10

CPC classification number: H01M8/0297 ,  H01M8/04052 ,  H01M8/04067 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/2465 ,  H01M8/248 ,  H01M2008/1095

Abstract: The fuel cell stack includes: two end plates arranged to be opposite to each other with a predetermined interval therebetween; first current collectors respectively contacting insides of the end plates; second current collectors respectively contacting the first current collectors and having a coefficient of thermal expansion greater than that of the first current collectors; third current collectors selectively contacting the second current collectors depending on a surrounding temperature; separators respectively contacting an inside of the third current collectors; a membrane electrode assembly contacting the separators and disposed alternately with the separators so as to form a stack in which a plurality of cells are piled up; a connecting device encompassing the two end plates and elements arranged between the two end plates; and a bolt fixing the connecting device.

Abstract translation: 燃料电池堆包括：彼此相对设置的两个端板，其间具有预定的间隔; 分别接触端板内部的第一集流器; 分别与第一集电器接触并具有大于第一集电器的热膨胀系数的第二集电器; 第三集电器根据周围温度选择性地接触第二集电器; 分离器分别接触第三集电器的内部; 膜电极组件与隔板接触并与隔板交替布置，以形成堆叠多个电池单元的堆叠; 包括两个端板和布置在两个端板之间的元件的连接装置; 以及固定连接装置的螺栓。

公开(公告)号：US07298933B2

公开(公告)日：2007-11-20

申请号：US11148906

申请日：2005-06-09

Applicant: Kwang Seong Choi ,  Jong Hyun Lee ,  Yong Duck Chung ,  Young Shik Kang ,  Jong Tae Moon ,  Je Ha Kim

Inventor： Kwang Seong Choi ,  Jong Hyun Lee ,  Yong Duck Chung ,  Young Shik Kang ,  Jong Tae Moon ,  Je Ha Kim

IPC: G02F1/01 ,  G02F1/35

CPC classification number: G02F1/0356

Abstract: Provided is an optical module including a microstrip line, a traveling wave type optical device positioned in the end of the microstrip line, and at least one balanced open stub connected to the microstrip line for the impedance matching at a specific frequency such as 40 GHz and 60 GHz. For the fine tuning, laser trimming can be applied to the stub. A transition region is formed between the optical device and the microstrip line. A termination resistor is formed to face the microstrip line with the optical device therebetween. A bandwidth can be controlled at a specific frequency by adjusting a number of the stubs or a value of the termination resistor.

Abstract translation: 提供了一种光学模块，其包括微带线，位于微带线的端部的行波型光学器件和连接到微带线的至少一个平衡的开路短路，用于在特定频率例如40GHz的阻抗匹配，以及 60 GHz。 对于微调，激光修剪可以应用于存根。 在光学器件和微带线之间形成过渡区域。 形成终端电阻器，以便在其间具有光学器件来面对微带线。 可以通过调整短路的数量或终端电阻的值来控制带宽在特定频率。

公开(公告)号：US07267900B2

公开(公告)日：2007-09-11

申请号：US10751046

申请日：2003-12-31

Applicant: Jong Hyun Lee

Inventor： Jong Hyun Lee

IPC: H01M8/04

CPC classification number: H01M8/04044 ,  H01M8/04029 ,  H01M8/04126 ,  H01M8/04149

Abstract: The fuel cell system comprises a fuel cell stack, a fuel gas supply unit, an oxidation gas supply unit, a fuel cell cooling unit, a fuel gas humidifier, an oxidation gas humidifier, and a control unit. The fuel gas humidifier humidifies fuel gas that is supplied to the fuel cell stack from the fuel gas supply unit by using remaining fuel gas that is exhausted from the fuel cell stack. The oxidation gas humidifier humidifies oxidation gas that is supplied to the fuel cell stack from the oxidation gas supply unit by using remaining oxidation gas that is exhausted from the fuel cell stack.

Abstract translation: 燃料电池系统包括燃料电池堆，燃料气体供应单元，氧化气体供应单元，燃料电池冷却单元，燃料气体加湿器，氧化气体加湿器和控制单元。 燃料气体加湿器通过使用从燃料电池堆排出的剩余燃料气体，从燃料气体供给单元对从燃料电池堆供给的燃料气体进行加湿。 氧化气体加湿器通过使用从燃料电池堆排出的剩余氧化气体，从氧化气体供给单元加湿供给到燃料电池堆的氧化气体。

公开(公告)号：US20070111686A1

公开(公告)日：2007-05-17

申请号：US11600511

申请日：2006-11-16

Applicant: Jong-Hyun Lee

Inventor： Jong-Hyun Lee

IPC: H01Q11/12 ,  H04B1/04

CPC classification number: H04B1/525 ,  H03F1/0211 ,  H03F1/0261 ,  H03F3/189 ,  H04B2001/0416

Abstract: Provided is an HPA apparatus for a TDD wireless communication system. In the HPA apparatus, a power amplifier amplifies the power of an input signal. A gate bias controller turns on/off a gate bias of the power amplifier in accordance with a TDD control signal. A constellation error optimizer circuit removes a current fluctuation and a power noise, which occur when the gate bias controller turns on/off the power amplifier in a TX mode, to stabilize a drain bias thereof.

Abstract translation: 提供了一种用于TDD无线通信系统的HPA设备。 在HPA装置中，功率放大器放大输入信号的功率。 门偏置控制器根据TDD控制信号来打开/关闭功率放大器的栅极偏置。 星座误差优化器电路消除当偏置控制器在TX模式下接通/关断功率放大器时发生的电流波动和功率噪声，以稳定其漏极偏置。

公开(公告)号：US06917811B2

公开(公告)日：2005-07-12

申请号：US10329268

申请日：2002-12-24

Applicant: Sang Taek Kim ,  Jong Hyun Lee ,  In Hwan Hwang ,  Sung Soo Kim ,  Kwang Jin Han

Inventor： Sang Taek Kim ,  Jong Hyun Lee ,  In Hwan Hwang ,  Sung Soo Kim ,  Kwang Jin Han

IPC: H04W16/10 ,  H04Q7/20

CPC classification number: H04W16/10 ,  H04W72/082

Abstract: Provided is a real-time dynamic channel assignment method based on a genetic algorithm in a radio communication system, and a computer-readable recording medium for recording a program implementing the method. The channel assignment method in accordance with the present invention has following advantages. First, an evaluation function clearly shows the difference between chromosomes, which represents channel assignment, can be set. Second, the efficiency in calculation time and memory capacity is increased by representing the assignment of channels arranged in one-dimensional using inherent channel numbers. Third, by controlling the Elitist pool crossover method and mutation probability properly, diversity is pursued in the initial process of the evolution program, and then as generation repeats, the convergence is enhanced so as to increase the efficiency in obtaining the optimum solution.

Abstract translation: 提供了一种基于无线电通信系统中的遗传算法的实时动态信道分配方法和用于记录实现该方法的程序的计算机可读记录介质。 根据本发明的信道分配方法具有以下优点。 首先，评估函数清楚地表明可以设定代表信道分配的染色体之间的区别。 第二，通过使用固有信道号表示以一维布置的信道的分配来增加计算时间和存储容量的效率。 第三，通过适当地控制精英池交叉法和变异概率，在进化程序的初始过程中追求多样性，随着生成重复，收敛增强，从而提高获得最优解的效率。

公开(公告)号：US06650467B2

公开(公告)日：2003-11-18

申请号：US10112796

申请日：2002-03-28

Applicant: Jyung Chan Lee ,  Jong Hyun Lee ,  Moo Jung Chu ,  Hee Sang Chung

Inventor： Jyung Chan Lee ,  Jong Hyun Lee ,  Moo Jung Chu ,  Hee Sang Chung

IPC: H01S300

CPC classification number: H01S3/06758 ,  H01S3/094011 ,  H01S2301/04

Abstract: Disclosed herein is an Erbium-Doped Fiber Amplifier (EDFA) used in a WDM (Wavelength Division Multiplexing) transmission system. In accordance with the present invention, a variation of the intensity of the output optical signal in the optical fiber amplifier, which results from an gain imbalance due to different wavelength distribution caused by the gain inhomogeneity characteristics, can be prevented by examining the laser diode sensitive to the gain inhomogeneity characteristics in the erbium-doped optical fiber amplifier, constructing the filter having spectrum characteristics capable of suppressing the gain imbalance of the optical signal outputted from the optical fiber amplifier, and driving the sensitive laser diode using the electrical signal obtained by branching some of the input optical signal and passing the branched optical signal through the filter and driving other laser diodes with a constant voltage value.

Abstract translation: 本文公开了在WDM（波分复用）​​传输系统中使用的掺铒光纤放大器（EDFA）。 根据本发明，可以通过检查激光二极管敏感性来防止由于由增益不均匀性特性引起的由不同波长分布引起的增益不平衡导致的光纤放大器中输出光信号的强度变化 对于铒掺杂光纤放大器的增益不均匀性特性，构成具有能够抑制从光纤放大器输出的光信号的增益不平衡的频谱特性的滤波器，并使用通过分支获得的电信号来驱动敏感激光二极管 一些输入光信号，并使分支光信号通过滤波器，并以恒定电压值驱动其他激光二极管。

公开(公告)号：US06480309B1

公开(公告)日：2002-11-12

申请号：US09379364

申请日：1999-08-23

Applicant: Sang Rok Lee ,  Wan Seok Seo ,  Sung Un Lee ,  Byeong Ho Yoon ,  Joon Hak Bang ,  Jong Hyun Lee

Inventor： Sang Rok Lee ,  Wan Seok Seo ,  Sung Un Lee ,  Byeong Ho Yoon ,  Joon Hak Bang ,  Jong Hyun Lee

IPC: H04J1400

CPC classification number: H04Q11/0005 ,  H04Q2011/0013 ,  H04Q2011/0049

Abstract: An optical gate based optical space division switch for switching optical signals inputted through arbitrary input ports to a desired output port with no internal collision. The optical space division switch comprises a first splitting section for splitting the optical signals inputted through the input ports, a first amplification section for selectively amplifying output optical signals from the first splitting section, a second splitting section for splitting output optical signals from the first amplification section, a second amplification section for selectively amplifying output optical signals from the second splitting section, a coupling section for coupling output optical signals from the second amplification section, and a third amplification section for amplifying an output optical signal from the coupling section and transferring the amplified optical signal to the output port. According to the present invention, optical gates are connected in a two-stage manner to cross-couple optical signals. Therefore, the optical signals are transferred only to a desired output port, thereby reducing the number of their crosstalk components and so significantly improving a signal-to-noise ratio.

Abstract translation: 一种基于光栅的光学空间分配开关，用于将没有内部碰撞的通过任意输入端口输入的光信号切换到期望的输出端口。 光学空分开关包括：第一分离部分，用于分离通过输入端口输入的光信号;第一放大部分，用于选择性地放大来自第一分离部分的输出光信号;第二分离部分，用于分离来自第一放大的输出光信号 第二放大部分，用于选择性地放大来自第二分离部分的输出光信号，用于耦合来自第二放大部分的输出光信号的耦合部分和用于放大来自耦合部分的输出光信号的第三放大部分， 放大光信号到输出端口。 根据本发明，光栅以两级方式连接以交叉耦合光信号。 因此，光信号仅传送到期望的输出端口，从而减少其串扰分量的数量，并因此显着提高信噪比。