公开(公告)号：KR1020130008280A

公开(公告)日：2013-01-22

申请号：KR1020110068936

申请日：2011-07-12

Applicant: 삼성전자주식회사

Inventor： 이재훈

IPC: H01L33/22 ,  H01L33/12

CPC classification number: H01L29/872 ,  H01L27/0605 ,  H01L29/1075 ,  H01L29/1079 ,  H01L29/1608 ,  H01L29/2003 ,  H01L29/66462 ,  H01L29/7787 ,  H01L33/007 ,  H01L33/12 ,  H01L33/32

Abstract: PURPOSE: A nitride type semiconductor device with excellent stability is provided to improve the performance of a semiconductor device by using a grade layer including little aluminum. CONSTITUTION: An aluminum silicon carbide pretreatment layer(120) is formed on a substrate. An Al doped GaN layer(170) is formed on a pretreatment layer. An AlGaN layer is formed on the Al doped GaN layer. A buffer layer(130) is formed on the pretreatment layer. The buffer layer includes aluminum nitride(AlN).

Abstract translation: 目的：提供具有优异稳定性的氮化物型半导体器件，以通过使用包括少量铝的等级层来改善半导体器件的性能。 构成：在基板上形成铝碳化硅预处理层（120）。 在预处理层上形成Al掺杂的GaN层（170）。 在Al掺杂的GaN层上形成AlGaN层。 在预处理层上形成缓冲层（130）。 缓冲层包括氮化铝（AlN）。

公开(公告)号：KR1020100061134A

公开(公告)日：2010-06-07

申请号：KR1020080120032

申请日：2008-11-28

Applicant: 삼성전자주식회사

Inventor： 이재훈 ,  김용천

IPC: H01L33/20

Abstract: PURPOSE: A manufacturing method of a nitride semiconductor light emitting device and a semiconductor light emitting device manufactured by the same method are provided to reduce a total reflection on an interface by forming an uneven pattern including a plurality of the holes with examining a laser beam on a growth substrate. CONSTITUTION: A buffer layer(120) is formed on the single-side of a growth substrate. A light emitting structure(130) including laminated a first conductive type nitride layer(131), an active layer(133) and a second conductive type nitride layer(135) is formed on the buffer layer. A partial domain of the first conductive type nitride layer is mesa-etched among the light emitting structure. A first conductive type electrode is formed on the partial domain of the exposed first conductive type nitride layer. A second conductive type electrode is formed on the second conductive type nitride layer. A plurality of holes is formed on the other side of the growth substrate with examining a laser beam.

Abstract translation: 目的：提供通过相同方法制造的氮化物半导体发光器件和半导体发光器件的制造方法，以通过在激光束上检查激光束形成包括多个孔的不均匀图案来减少界面上的全反射 生长底物。 构成：在生长衬底的单面上形成缓冲层（120）。 在缓冲层上形成包括层叠了第一导电型氮化物层（131），有源层（133）和第二导电型氮化物层（135）的发光结构（130）。 在发光结构中，第一导电氮化物层的局部区域被台面刻蚀。 第一导电型电极形成在暴露的第一导电氮化物层的部分域上。 在第二导电型氮化物层上形成第二导电型电极。 通过检查激光束在生长衬底的另一侧上形成多个孔。

公开(公告)号：KR1020090106101A

公开(公告)日：2009-10-08

申请号：KR1020080031613

申请日：2008-04-04

Applicant: 삼성전자주식회사 ,  서강대학교산학협력단

Inventor： 이재훈 ,  황성택 ,  성원진 ,  성기석 ,  송인홍

IPC: H04B7/26

CPC classification number: H04W72/048 ,  H04W4/08 ,  H04B7/024 ,  H04B7/2603 ,  H04W28/16 ,  H04W72/1226

Abstract: PURPOSE: A scheduling apparatus in a distributed antenna system and a method thereof are provided to increase transmission efficiency of the whole system by performing the packet scheduling and dynamic channel allocation for the cooperative transmission between antennas. CONSTITUTION: A scheduling apparatus in a distributed antenna system comprises the following steps of: classifying mobile terminals of each channel into a single-transmission mobile terminal and a cooperative-transmission mobile terminal according to the determination condition of cooperative transmission; selecting a mobile terminal which has the biggest channel capacity among the terminals(403); and if the selected terminal is the single-transmission mobile terminal, allocating a resource to a corresponding sub channel(409).

Abstract translation: 目的：提供分布式天线系统中的调度装置及其方法，以通过对天线之间的协作传输进行分组调度和动态信道分配来提高整个系统的传输效率。 构成：分布式天线系统中的调度装置，包括以下步骤：根据协作发送的判定条件，将各信道的移动终端分类为单载波移动终端和协作发送移动终端; 选择终端（403）中具有最大信道容量的移动终端; 并且如果所选择的终端是单一传输移动终端，则将资源分配给相应的子信道（409）。

公开(公告)号：KR100893213B1

公开(公告)日：2009-04-16

申请号：KR1020050061928

申请日：2005-07-08

Applicant: 삼성전자주식회사

Inventor： 이재훈

IPC: H04W36/02 ,  H04W80/04 ,  H04L12/801

Abstract: 본 발명은 모바일 네트워크에 있어서 패킷 처리 방법에 관한 것으로서, 모바일 노드(Mobile Node)가 제1라우터에서 제2라우터로 이동하는 경우 제1라우터를 경유하는 패킷과 제2라우터를 경유하는 패킷이 혼재되어 모바일 노드로 전송되는 이른바 패킷 순서의 어긋남 현상을 방지하기 위하여 제1라우터를 경유하는 패킷이 모두 전달되었음을 알리기 위한 메시지를 이용함으로써 모바일 노드의 응용 프로그램의 성능 향상을 꾀할 수 있다.

公开(公告)号：KR100871257B1

公开(公告)日：2008-11-28

申请号：KR1020070018372

申请日：2007-02-23

Applicant: 삼성전자주식회사 ,  서강대학교산학협력단

Inventor： 이재훈 ,  황성택 ,  성원진 ,  최진우 ,  이병석 ,  송인홍

IPC: H04B7/26 ,  H04L12/56

CPC classification number: H04B7/061 ,  H04W52/265 ,  H04W72/1231 ,  H04W72/1242 ,  H04W84/047

Abstract: 본 발명은 주파수 재활용과 공동 전력제어를 채용한 다채널 분산안테나시스템에서 주파수효율과 공평성 증대를 위한 조합적 스케쥴링 방법에 있어서, 기지국(Base Station : BS)에서 직접, 또는 중계국(Relay Station : RS)을 통해 서비스 품질(Quality of Service : QoS)을 고려한 단말(Mobile Station : MS)을 선택하는 과정과, MS로부터 추출한 패킷을 이용하여 특정 링크 그룹(Link Group)을 선택하고 결합적 전력제어(Joint Power Control)를 수행하는 과정과, 최적의 할당 전력 값(최적해)이 도출될 때까지 특정 링크 그룹을 반복적으로 제거(Remove)하고 선택(Selection)하는 과정과, 최적해가 도출되어 채널을 할당 받고 QoS를 고려한 MS가 속한 사용자 큐 상태를 업데이트하는 과정과, 할당된 채널과 전송될 패킷이 존재하지 않을 때까지 상기의 과정들을 반복적으로 수행하는 과정을 포함함을 특징으로 한다.
스케쥴링, 결합적 전력제어, 링크 그룹

公开(公告)号：KR1020080092758A

公开(公告)日：2008-10-16

申请号：KR1020070036556

申请日：2007-04-13

Applicant: 삼성전자주식회사

Inventor： 이재훈 ,  마용득

IPC: H01L21/60

CPC classification number: H01L2224/73204

Abstract: A semiconductor chip comprising a micro-pitch bump is provided to reduce an electrical short and a wrong decision for test by employing a path where a conductive particle and thermal conductive resin flow smoothly. Plural first metal bumps(210) include a first bump unit(212) of a first width and a second bump unit(214) of a second width. The first bump unit is extended to a longitudinal direction. The second width is wider than the second width. Plural second metal pumps(220) include a third bump(222) of a third width and a fourth bump(224) of a fourth width. The third bump unit is extended to the longitudinal direction. The fourth width is wider than the third width. The third bump unit and the fourth bump unit are electrically connected in a discontinuous shape. The second metal bumps are located between the first metal bumps. First and second metal pads(110,120) are substantially arranged on lower portions of the first and second metal bumps to be equal to the first and second metal bumps.

Abstract translation: 提供了包括微距凹凸的半导体芯片，以通过采用导电颗粒和导热树脂流畅地流动的路径来减少电短路和错误的测试决定。 多个第一金属凸块（210）包括第一宽度的第一凸块单元（212）和第二宽度的第二凸块单元（214）。 第一凸块单元延伸到纵向方向。 第二宽度比第二宽度宽。 多个第二金属泵（220）包括第三宽度的第三凸起（222）和第四宽度的第四凸起（224）。 第三凸起单元延伸到纵向方向。 第四宽度比第三宽度宽。 第三凸块单元和第四凸块单元以不连续的形状电连接。 第二金属凸块位于第一金属凸块之间。 第一和第二金属焊盘（110,120）基本上布置在第一和第二金属凸块的下部等于第一和第二金属凸块。

公开(公告)号：KR100852189B1

公开(公告)日：2008-08-13

申请号：KR1020060119409

申请日：2006-11-30

Applicant: 삼성전자주식회사

Inventor： 이재훈

IPC: H03K17/16

CPC classification number: G01R31/31715 ,  G01R31/318572

Abstract: 저 전압을 사용하는 반도체 제품에서 노이즈(Noise)는 수율 저하 및 오 동작을 유발하는 중요한 요소이다. 입출력(I/O) 패드(Pad)의 특성을 테스트하기 위해 로직 테스트(Logic test)가 널리 사용된다. 로직 테스트는 체인 테스트 방식으로 입출력 패드를 이용하여 VIH(High level input voltage)와 VIL(Low level input voltage) 및 입력 신호 결합 검출(Input signal fault detection)을 위해 사용된다. 한편, 시스템의 정상 동작 시 정상 동작에 관계없는 테스트 로직이 토글링(Toggling)되어 로직 체인으로 노이즈가 전파(Propagation)되는 문제가 발생한다. 본 발명에서는 이러한 로직 체인을 통한 노이즈의 전파를 물리적인 방식이 아닌 논리적인 방식으로 차단한다. 따라서, 정상 동작 시 테스트 체인을 통한 노이즈의 전파에 의한 특성 저하를 방지할 수 있다.
패드(Pad), 체인 테스트(Chain test), VIH(High level input voltage), VIL(Low level input voltage)

公开(公告)号：KR1020080063927A

公开(公告)日：2008-07-08

申请号：KR1020070000537

申请日：2007-01-03

Applicant: 삼성전자주식회사

Inventor： 이재훈 ,  황성택 ,  김병직 ,  김상호

IPC: H04B10/29 ,  H04B7/14

CPC classification number: H04J14/02 ,  H04J3/0682 ,  H04W88/085

Abstract: A method and a system for controlling a remote device in a TDD type optical repeater are provided to control the remote device easily by transmitting control information for controlling the remote device in an unused time section and state information for enabling a manager to know the state of the remote device. A method for controlling a remote device in a TDD type optical repeater comprises the following several steps. A main donor receives downlink signals from an AP(Access Point), a control frame unit generates a control frame(S700) and transmits the control frame to a remote device during a pause time of the downlink signals(S710). A control signal generator of the remote device analyzes the control frame(S720) and detects synchronization information with respect to the downlink signals between the main donor and the remote device(S730), and then detects time delay information for generating a switch control signal(S740). In case of detecting power information, the control signal generator controls power of the remote device according to the power information(S750). In case of detecting HPA(High Power Amplifier) control information, an HPA controls amplification of signals to an effective output for transmitting downlink signals over a wireless network according to the HPA control information(S760). In case of detecting time control information, a control signal generator generates a switch control signal according to the time control information(S770) and controls setup of a downlink path in the second switch(S780).

Abstract translation: 提供了一种用于控制TDD型光中继器中的远程设备的方法和系统，用于通过在未使用的时间段内发送用于控制远程设备的控制信息和状态信息来容易地控制远程设备，以使管理者能够知道 远程设备。 用于控制TDD型光中继器中的远程设备的方法包括以下几个步骤。 主要供体接收来自AP（接入点）的下行链路信号，控制帧单元生成控制帧（S700），并且在下行链路信号的暂停时间期间将控制帧发送到远程设备（S710）。 远程设备的控制信号发生器分析控制帧（S720）并检测与主供体和远程设备之间的下行链路信号的同步信息（S730），然后检测用于产生开关控制信号的时间延迟信息（ S740）。 在检测功率信息的情况下，控制信号发生器根据功率信息控制远程设备的功率（S750）。 在检测HPA（大功率放大器）控制信息的情况下，HPA根据HPA控制信息，通过无线网络控制信号到有效输出的放大以发送下行链路信号（S760）。 在检测时间控制信息的情况下，控制信号发生器根据时间控制信息生成开关控制信号（S770），并控制第二开关中的下行链路路径的建立（S780）。

公开(公告)号：KR1020080046420A

公开(公告)日：2008-05-27

申请号：KR1020060115851

申请日：2006-11-22

Applicant: 삼성전자주식회사

Inventor： 한,슈앙펑 ,  황성택 ,  김훈 ,  김상호 ,  조재헌 ,  이재훈 ,  송기욱

IPC: H04B7/04 ,  H04B7/26 ,  H04L27/26 ,  H04L1/02

CPC classification number: H04W52/42 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0691 ,  H04L1/0625 ,  H04L1/0668 ,  H04W52/04

Abstract: A symbol error rate-based adaptive power allocation scheme for OSTBC and beam forming in a DWCS is provided to estimate large-scale fading and nakagami fading parameters in a transmitter, thereby minimizing the SER of MQAM(M-ary Quadrature Amplitude Modulation) and MPSK(M-ary Phase Shift Keying) symbols. A adaptive power allocation scheme for OSTBC(Orthogonal Space Time Block Codes) and beam forming in a DWCS(Distributed Wireless Communication System) comprises the following steps of: setting i to one, A to Ai, and P and P0 to one, wherein A is the optimal antenna sub set, and P is a quasi or optimal SER(Symbol Error Rate)(401); estimating DOA(Direction Of Arrival) for each sub array and generating an array response vector for the each antenna sub array(402); calculating a quasi or optimal SER Pi for the sub set Ai by using quasi and optimal power allocation schemes, PAS1(Power Allocation Scheme1) and PAS2(403); checking whether the calculated SER Pi is less than or equal to Pi-1(404); setting A to Ai and P to Pi if the Pi is less than or equal to Pi-1(405); checking whether I is less than 2^l-1(406); and adding one to i when I is less than 2^l-1(407).

Abstract translation: 提供了用于OSTBC和DWCS中的波束形成的基于符号误码率的自适应功率分配方案以估计发射机中的大规模衰落衰减和Nakagami衰落参数，从而最小化MQAM（M进制正交幅度调制）和MPSK （M元相移键控）符号。 在DWCS（分布式无线通信系统）中的OSTBC（正交空时块）和波束形成的自适应功率分配方案包括以下步骤：将i设置为A，将Ai设置为Ai，将P和P0设置为1，其中A 是最优天线子集，P是准或最优SER（符号错误率）（401）; 估计每个子阵列的DOA（到达方向）并产生每个天线子阵列（402）的阵列响应向量; 通过使用准和最佳功率分配方案PAS1（功率分配方案1）和PAS2（403），为子集Ai计算准或最优的SER Pi; 检查计算的SER Pi是否小于或等于Pi-1（404）; 如果Pi小于或等于Pi-1（405），则将A设置为Ai并将P设置为Pi 检查我是否小于2 ^ 1-1（406）; 并且当我小于2 ^ 1 -1（407）时，加上一个。

公开(公告)号：KR100762637B1

公开(公告)日：2007-10-01

申请号：KR1020060040051

申请日：2006-05-03

Applicant: 삼성전자주식회사

Inventor： 이재훈 ,  김병직 ,  황성택 ,  김상호

IPC: H04B10/2575 ,  H04L5/22 ,  H04B7/14 ,  H04J3/00

CPC classification number: H04B10/25758 ,  H04B7/2606

Abstract: A bidirectional RoF(Radio-over-Fiber) line apparatus using one wavelength for transmitting a signal of a wireless system using TDD(Time Division Duplexing) scheme is provided to remove restrictions by selecting the wavelength of uplink and downlink light sources for uplink and downlink transmission and use the light sources having wider bandwidth at low costs. A main donor(310) receives an RF(Radio Frequency) signal of downlink data from an upper layer, performs electric-to-optic conversion of the inputted RF signal into an optical signal, transmits the converted signal to a remote(320) through an optical fiber according to a TDD(Time Division Duplexing) switching signal inputted from the upper layer, receives an optical signal of uplink data through the optical fiber from the remote, performs photoelectric conversion of the inputted optical signal of the uplink data into an RF signal and transmits the converted signal to the upper layer. The remote receives the optical signal of the downlink data through the optical fiber from the main donor, performs photoelectric conversion of the inputted optical signal into an RF signal, radiates the converted signal to a terminal through an antenna according to a TDD switching signal generated in a switching timing signal generating circuit, receives an RF signal of uplink data from the terminal, performs electric-to-optic conversion of the RF signal of the uplink data into an optical signal according to the switching time signal generated in the switching timing signal generating circuit, and transmits the converted signal to the main donor through the optical fiber.

Abstract translation: 提供了使用TDD（时分双工）方式发送无线系统的信号的一个波长的双向RoF（Radio-over-Fiber）线路装置，以通过选择用于上行链路和下行链路的上行链路和下行链路光源的波长来消除限制 以低成本传输和使用具有更宽带宽的光源。 主供体（310）从上层接收下行链路数据的RF（射频）信号，对输入的RF信号进行电 - 光转换为光信号，将转换后的信号通过 根据从上层输入的TDD（时分双工）切换信号的光纤，通过来自远端的光纤接收上行链路数据的光信号，将上行数据的输入光信号进行光电转换为RF 信号并将转换的信号发送到上层。 遥控器通过来自主供体的光纤接收下行链路数据的光信号，将输入的光信号进行光电转换为RF信号，根据在天线中生成的TDD切换信号，通过天线将转换的信号发射到终端 切换定时信号发生电路，从终端接收上行链路数据的RF信号，根据在切换定时信号生成中产生的切换时间信号，对上行链路数据的RF信号进行电 - 光转换为光信号 电路，并通过光纤将转换的信号发送到主供体。