公开(公告)号：US08876936B2

公开(公告)日：2014-11-04

申请号：US13323343

申请日：2011-12-12

申请人： Ki Bum Kim ,  Eui Jun Kim ,  Seong Jin Kim ,  Sung Kweon Jang ,  Ki Jung Kim ,  Shin Gyu Kim ,  Jong Kwan Park ,  Sung Tae Choi

发明人： Ki Bum Kim ,  Eui Jun Kim ,  Seong Jin Kim ,  Sung Kweon Jang ,  Ki Jung Kim ,  Shin Gyu Kim ,  Jong Kwan Park ,  Sung Tae Choi

IPC分类号： C22C38/04 ,  B22F3/12 ,  C22C27/04 ,  C22C38/44 ,  C22C38/00 ,  B22F5/10 ,  C22C38/52 ,  C22C19/07 ,  C22C33/02 ,  C22C27/06 ,  B22F1/00

CPC分类号： B22F1/00 ,  B22F3/12 ,  B22F5/008 ,  B22F5/106 ,  C22C19/07 ,  C22C27/04 ,  C22C27/06 ,  C22C33/0285 ,  C22C38/002 ,  C22C38/04 ,  C22C38/44 ,  C22C38/52 ,  F01L3/02

摘要： Disclosed herein is an engine valve seat, including: iron (Fe) as a main component; about 0.6˜1.2 wt % of carbon (C); about 1.0˜3.0 wt % of nickel (Ni); about 8.0˜11.0 wt % of cobalt (Co); about 3.0˜6.0 wt % of chromium (Cr); about 4.0˜7.0 wt % of molybdenum (Mo); about 0.5˜2.5 wt % of tungsten (W); about 1.0˜3.0 wt % of manganese (Mn); about 0.2˜1.0 wt % of calcium (Ca); and other inevitable impurities.

摘要翻译： 这里公开了一种发动机阀座，包括：铁（Fe）作为主要成分; 约0.6〜1.2重量％的碳（C）; 约1.0〜3.0重量％的镍（Ni）; 约8.0〜11.0重量％的钴（Co）; 约3.0〜6.0重量％的铬（Cr）; 约4.0〜7.0重量％的钼（Mo）; 约0.5〜2.5重量％的钨（W）; 约1.0〜3.0重量％的锰（Mn）; 约0.2〜1.0重量％的钙（Ca）; 和其他不可避免的杂质。

公开(公告)号：US20130194754A1

公开(公告)日：2013-08-01

申请号：US13877378

申请日：2011-10-05

申请人： Dong-Yun Jung ,  Sung-Tae Choi ,  Young-Hwan Kim ,  Jung-Han Choi ,  Ji-Hoon Kim ,  Jei-Young Lee ,  Dong-Hyun Lee

发明人： Dong-Yun Jung ,  Sung-Tae Choi ,  Young-Hwan Kim ,  Jung-Han Choi ,  Ji-Hoon Kim ,  Jei-Young Lee ,  Dong-Hyun Lee

IPC分类号： H05K1/02 ,  H05K1/18

CPC分类号： H05K1/0216 ,  H01L23/3677 ,  H01L23/49822 ,  H01L23/5385 ,  H01L23/66 ,  H01L24/16 ,  H01L24/48 ,  H01L24/73 ,  H01L25/0655 ,  H01L2223/6627 ,  H01L2223/6677 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/16235 ,  H01L2224/32225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/1421 ,  H01L2924/15153 ,  H01L2924/15156 ,  H01L2924/15174 ,  H01L2924/15192 ,  H01L2924/15313 ,  H01L2924/15323 ,  H01L2924/15333 ,  H01L2924/30107 ,  H05K1/0204 ,  H05K1/181 ,  H01L2924/00012 ,  H01L2924/00 ,  H01L2224/0401 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： An apparatus for a single chip package using Land Grid Array (LGA) coupling is provided. The apparatus includes a multi-layer substrate, at least one integrated circuit chip, and a Printed Circuit Board (PCB). The a multi-layer substrate has at least one substrate layer, has at least one first chip region and at least one second chip region in a lowermost substrate layer, configures a transmission line transition of a vertical structure for transmitting a signal from at least one integrated circuit chip coupled in the first chip region in a coaxial shape or in a form of a Co-Planar Waveguide guide (CPW), and has an LGP coupling pad for connecting with a Printed Circuit Board (PCB) in the lowermost layer. The at least one integrated circuit chip is coupled in the first chip region and the second chip region. The PCB is connected with the multi-layer substrate using the LGA coupling via the LGA coupling pad.

摘要翻译： 提供了一种使用Land Grid Array（LGA）耦合的单芯片封装的设备。 该装置包括多层基板，至少一个集成电路芯片和印刷电路板（PCB）。 多层衬底具有至少一个衬底层，在最下层衬底层中具有至少一个第一芯片区域和至少一个第二芯片区域，构成垂直结构的传输线转换，以从至少一个 集成电路芯片以同轴形状或Co-Planar波导引导件（CPW）的形式耦合在第一芯片区域中，并且具有用于与最下层中的印刷电路板（PCB）连接的LGP耦合焊盘。 所述至少一个集成电路芯片耦合在所述第一芯片区域和所述第二芯片区域中。 PCB使用LGA耦合通过LGA耦合垫与多层基板连接。

公开(公告)号：US07795996B2

公开(公告)日：2010-09-14

申请号：US12045101

申请日：2008-03-10

申请人： Sung-tae Choi ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

发明人： Sung-tae Choi ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

IPC分类号： H03H7/01

CPC分类号： H01P1/2013 ,  H01P11/007 ,  Y10T29/49155

摘要： A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal line for transmitting a signal and a ground plane. As the filter unit has a multilayered structure, characteristic impedance may be reduced without increasing the width of the signal line. Where an inductor line is inserted between the signal line and the plate, a clear frequency response curve may be obtained without performing an additional process or increasing the area of the filter unit.

摘要翻译： 提供了一种多层共面波导（CPW）滤波器单元及其制造方法。 具有电容元件的板形成在CPW层上或下方，包括用于发送信号的信号线和接地层。 由于滤波器单元具有多层结构，可以在不增加信号线的宽度的情况下降低特性阻抗。 在信号线和板之间插入电感线的情况下，可以获得清晰的频率响应曲线，而不需要执行额外的处理或增加滤波器单元的面积。

公开(公告)号：US5781553A

公开(公告)日：1998-07-14

申请号：US579686

申请日：1995-12-28

申请人： Sang-jun Choi ,  Sung-tae Choi

发明人： Sang-jun Choi ,  Sung-tae Choi

IPC分类号： H04W84/16 ,  H04J13/02

CPC分类号： H04W84/16

摘要： A digital wireless private branch exchange system comprising a system body, a terminal device and a base station controller. The base station comprises an RF unit for modulating an analog IF signal to convert it into an RF signal, transmitting the resultant RF signal to the terminal device through a radio channel, receiving an RF signal from the terminal device through the radio channel, demodulating the received RF signal to convert it into an analog IF signal and transferring the resultant analog IF signal, an IF processor for converting a plurality of first frames with voice data and control data into an analog IF signal, transferring the resultant analog IF signal to the RF unit and distributing the analog IF signal from the RF unit, a base station controller for transmitting and receiving voice data and control data to/from the system body, and a plurality of channel controllers, each of the channel controllers forming the voice data and control data from the base station controller into the first frame, transferring the formed first frame to the IF processor, extracting a second frame from the analog IF signal distributed from the IF processor, separating the extracted second frame into voice data and control data and transferring the separated voice data and control data to the base station controller.

摘要翻译： 一种包括系统主体，终端设备和基站控制器的数字无线专用交换机系统。 基站包括用于调制模拟IF信号以将其转换为RF信号的RF单元，通过无线电信道将所得到的RF信号发送到终端设备，通过无线电信道从终端设备接收RF信号，解调 接收的RF信号将其转换为模拟IF信号并传送所得到的模拟IF信号，用于将具有语音数据和控制数据的多个第一帧转换成模拟IF信号的IF处理器，将所得到的模拟IF信号传送到RF 单元并且分发来自RF单元的模拟IF信号，用于向/从系统主体发送和接收语音数据和控制数据的基站控制器，以及多个信道控制器，每个信道控制器形成语音数据和控制 从基站控制器到第一帧的数据，将形成的第一帧传送到IF处理器，从模拟I提取第二帧 F信号从IF处理器分配，将提取的第二帧分离成语音数据和控制数据，并将分离的语音数据和控制数据传送到基站控制器。

公开(公告)号：US20110284792A1

公开(公告)日：2011-11-24

申请号：US12906471

申请日：2010-10-18

申请人： Jong Myung Kim ,  Ki Bum Kim ,  Dong Jin Kang ,  Hyung Oh Ban ,  Hong Kil Baek ,  Won-Seog Koo ,  Jong-Kwan Park ,  Sung-Tae Choi

发明人： Jong Myung Kim ,  Ki Bum Kim ,  Dong Jin Kang ,  Hyung Oh Ban ,  Hong Kil Baek ,  Won-Seog Koo ,  Jong-Kwan Park ,  Sung-Tae Choi

IPC分类号： F16K51/00 ,  B22F3/12 ,  B22F3/26 ,  B22F1/00

CPC分类号： F16K25/005 ,  B22F5/008 ,  B22F2999/00 ,  C22C33/0285 ,  B22F3/10 ,  B22F2201/02

摘要： The present invention features a steel-base sintering alloy having a high wear-resistance for a valve seat of an engine. In preferred embodiments, the steel-base sintering alloy may include a chief element of Ferrum (Fe); and a powder-alloy which are composed of Carbon (C) of 0.6˜1.2 wt %, Nickel (Ni) of 1.0˜3.0 wt %, Cobalt (Co) of 15.0˜25.0 wt %, Chrome (Cr) of 3.0˜9.0 wt %, Molybdenum (Mo) of 8.0˜15.0 wt %, Tungsten (W) of 1.0˜4.0 wt %, Manganese (Mn) of 0.5˜2.0 wt %, and Calcium (Ca) of 0.1˜0.5 wt %.

摘要翻译： 本发明的特征在于具有用于发动机的阀座的高耐磨性的钢基烧结合金。 在优选实施例中，钢基烧结合金可以包括铁（Fe）的主要元素; 和由0.6〜1.2重量％的碳（C），1.0〜3.0重量％的镍（Ni），15.0〜25.0重量％的钴（Co），3.0〜9.0的铬（Co）组成的粉末合金） 重量％，钼（Mo）为8.0〜15.0重量％，钨（W）为1.0〜4.0重量％，锰（Mn）为0.5〜2.0重量％，钙（Ca）为0.1〜0.5重量％。

公开(公告)号：US07880567B2

公开(公告)日：2011-02-01

申请号：US12034260

申请日：2008-02-20

申请人： Cheol-gyu Hwang ,  Sung-tae Choi ,  Jung-han Choi ,  Young-hwan Kim ,  Dong-hyun Lee

发明人： Cheol-gyu Hwang ,  Sung-tae Choi ,  Jung-han Choi ,  Young-hwan Kim ,  Dong-hyun Lee

IPC分类号： H01P1/203

CPC分类号： H01P3/003 ,  H01P1/2005 ,  H01P1/2013 ,  H01P11/003 ,  Y10T29/49016

摘要： Provided is an electromagnetic bandgap (EBG) structure, and particularly, an overlay EBG structure in which a plurality of vias and a plurality of plates are formed at intervals on a central signal line in such a manner that the vias and plates extend vertically from a substrate in order to reduce leakage loss of an electromagnetic wave through the substrate. Therefore, it is possible to prevent an electromagnetic wave passing through a transmission line from being lost through the substrate, to obtain desired frequency characteristics by adjusting the dimensions of the vias and plates, and to manufacture the overlay EBG structure using an existing CMOS process without having to perform any additional process.

摘要翻译： 提供了一种电磁带隙（EBG）结构，特别地，覆盖EBG结构，其中多个通孔和多个板以间隔形式形成在中心信号线上，使得通孔和板从一个 基板，以减少通过基板的电磁波的泄漏损失。 因此，可以防止通过传输线的电磁波通过衬底丢失，通过调节通孔和板的尺寸来获得期望的频率特性，并且使用现有的CMOS工艺制造覆盖EBG结构，而不需要 必须执行任何额外的过程。

公开(公告)号：US07859460B2

公开(公告)日：2010-12-28

申请号：US12116385

申请日：2008-05-07

申请人： Cheol-gyu Hwang ,  Sung-tae Choi ,  Young-hwan Kim ,  Jung-han Choi ,  Dong-hyun Lee ,  Jae-hyon Kim ,  Hyun-cheol Park ,  Yu-sung Lee ,  Han-kil Lee

发明人： Cheol-gyu Hwang ,  Sung-tae Choi ,  Young-hwan Kim ,  Jung-han Choi ,  Dong-hyun Lee ,  Jae-hyon Kim ,  Hyun-cheol Park ,  Yu-sung Lee ,  Han-kil Lee

IPC分类号： H01Q3/02 ,  H04M1/00

CPC分类号： H01Q25/007 ,  H01Q3/40 ,  H01Q21/29

摘要： Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.

摘要翻译： 提供了一种切换波束形成装置，其包括使用阵列天线形成多个波束的波束形成单元，波束选择调整单元，测量通过多个波束接收的多个信号中的每一个的服务质量（QoS）值 波束选择单元，根据QoS测量的结果从多个波束中选择具有高QoS的至少两个波束的波束选择单元，以及组合由波束选择单元选择的至少两个波束的波束组合单元。

公开(公告)号：US20100244997A1

公开(公告)日：2010-09-30

申请号：US12682103

申请日：2008-03-07

申请人： Dong-hyun Lee ,  Young-hwan Kim ,  Sung-tae Choi ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-woo Kwon ,  Woo-yeol Choi

发明人： Dong-hyun Lee ,  Young-hwan Kim ,  Sung-tae Choi ,  Jung-han Choi ,  Cheol-gyu Hwang ,  Young-woo Kwon ,  Woo-yeol Choi

IPC分类号： H01P3/18 ,  H01P11/00 ,  G03F7/20

CPC分类号： H01P11/001 ,  H01P3/003 ,  H01P3/081 ,  Y10T29/49016

摘要： A waveguide of a multi-layer metal structure and a manufacturing method thereof are provided, the method including applying a plurality of metal layers on a substrate and a plurality of insulating layers respectively between the respective metal layers. Accordingly, it is possible to minimize conductive loss by dispersing current uniformly through wide regions between a signal line and ground lines.

摘要翻译： 提供了一种多层金属结构的波导及其制造方法，该方法包括在各个金属层之间分别在基板上施加多个金属层和多个绝缘层。 因此，可以通过均匀地将电流均匀地分布在信号线和接地线之间的宽区域来最小化导电损耗。

公开(公告)号：US20090270051A1

公开(公告)日：2009-10-29

申请号：US12268627

申请日：2008-11-11

申请人： Sung-tae Choi ,  Jung-han Choi ,  Young-hwan Kim ,  Dong-hyun Lee ,  Hong-yi Kim ,  Ki-chan Eun ,  Chul-soon Park

发明人： Sung-tae Choi ,  Jung-han Choi ,  Young-hwan Kim ,  Dong-hyun Lee ,  Hong-yi Kim ,  Ki-chan Eun ,  Chul-soon Park

IPC分类号： H04B7/06 ,  H04B1/04

CPC分类号： H04B7/0617 ,  H04B7/0682

摘要： Disclosed are a beamformer and a beamforming method. The beamformer includes a plurality of dividers, each of which divides an input signal along a plurality of paths, an input switch which selects one of the dividers such that the input signal is input to the selected divider, a phase shifter which shifts phases of respective output signals from the divider, and an output switch which transmits the output signals from the phase shifter to an antenna.

摘要翻译： 公开了波束成形器和波束成形方法。 波束形成器包括多个分频器，每个分频器沿着多个路径分割输入信号;输入开关，其选择一个分频器，使得输入信号被输入到所选择的分频器;移相器，其相移 来自分频器的输出信号，以及将相移器的输出信号发送到天线的输出开关。

公开(公告)号：US20090212885A1

公开(公告)日：2009-08-27

申请号：US12135363

申请日：2008-06-09

申请人： Cheol-gyu HWANG ,  Sung-tae Choi ,  Jung-han Choi ,  Seung-ho Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

发明人： Cheol-gyu HWANG ,  Sung-tae Choi ,  Jung-han Choi ,  Seung-ho Hwang ,  Young-hwan Kim ,  Dong-hyun Lee

IPC分类号： H01P1/203 ,  H01P7/08 ,  H01P11/00

CPC分类号： H01P1/2013 ,  H01P1/2005 ,  H01P11/008

摘要： Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.

摘要翻译： 提供了一种电磁带隙（EBG）结构，特别是具有覆盖EBG结构的谐振器和带通滤波器以及制造谐振器的方法。 谐振器通过在基板上形成传输线和接地板来制造，沿着传输线的纵向方向以规则间隔布置多个反射器单元，并且在多个反射器中去除至少一个反射器，从而形成共同的 谐振模式。 因此，由于构成电容元件的反射器单元与基板分离，因此可以防止电磁波从基板泄漏出来，并且由于在反射器单元之间形成谐振单元，从而确保高频环境中的高Q特性。