公开(公告)号：KR101132620B1

公开(公告)日：2012-04-06

申请号：KR1020100082579

申请日：2010-08-25

Applicant: 한국과학기술원

Inventor： 한영남 ,  김동균 ,  김정찬 ,  김훈 ,  장갑석

IPC: H04J11/00

Abstract: PURPOSE: A scheduling apparatus at an orthogonal frequency division multiple access system and a scheduling method thereof are provided to allocate a user of maximum channel quality to a subchannel block having a maximum channel quality difference by comparing channel quality differences at different subchannel blocks. CONSTITUTION: The whole numbers of subchannel blocks are set to be the same as that of users(S200). The selection reference value of the subchannel blocks is calculated(S202). An allocation subchannel block and the user are selected(S204). A process for determining whether allocation is performed or not is operated(S206,S210,S212). An allocation process is operated(S208,S214). An allocable subchannel block, subchannel block combination which is pre-allocated, and subchannel block combination which is not allocated according to a user are updated by reflecting a current allocation result(S216). An update procedure includes an allocable subchannel block range update process according to the user, an allocable subchannel block user updating process, and a verification process of unallocated subchannel block.

公开(公告)号：KR1020110110919A

公开(公告)日：2011-10-10

申请号：KR1020100030217

申请日：2010-04-02

Applicant: 인천대학교 산학협력단 ,  한국과학기술원

Inventor： 김훈 ,  오남걸 ,  최윤범 ,  김용호 ,  이호원 ,  함명원 ,  조동호

IPC: H04W84/18 ,  H04L12/28

CPC classification number: H04W16/18 ,  G06F17/5009 ,  H04W16/22 ,  H04W84/18

Abstract: 본 발명은 무선 센서 네트워크에 있어서 시스템 구축 비용을 최소화하고 시스템 성능을 개선할 수 있는 최적의 센서 배치 방법 및 이를 구현한 장치에 관한 것으로, 지리정보시스템(Geographic Information System, GIS)을 이용하여 센서 배치시 노드간 연결성(Connectivity)과 센싱 반경(Coverage)을 만족하면서 센서의 수를 최소화하여 초기 배치하고, 담금질(Simulated Annealing, SA) 기법을 적용하여 초기 배치된 센서를 재배치함으로써 무선 센서 네트워크의 구축 비용을 절감하는 동시에 시스템 성능을 개선할 수 있다.

公开(公告)号：KR100405963B1

公开(公告)日：2003-11-14

申请号：KR1020010036850

申请日：2001-06-27

Applicant: 이지케이 주식회사 ,  한국과학기술원

Inventor： 신형철 ,  김훈 ,  이종호 ,  안영준

IPC: H01L27/10

Abstract: PURPOSE: A minimum channel memory device is provided to use a minimum channel device as a memory device by forming a side gate of relatively small work function on the side surface of a main gate and by performing a memory operation while using an inversion layer and the side gate formed on the side gate. CONSTITUTION: An oxide layer(24) is formed on a semiconductor substrate(30). The main gate(21) is formed on the oxide layer. An insulation layer(25) surrounds the right and left side surfaces of the main gate. The first and second gates(22,23) have work function different than that of the main gate, respectively formed on the right and left side surfaces of the main gate while the insulation layer is used as a medium. A source/drain is formed in the substrate under the first and second gates. The inversion layer(26,27) is formed in the substrate under the first and second gates, adjacent to the source/drain.

Abstract translation: 目的：通过在主栅极的侧面上形成功函数相对较小的侧栅极并通过在使用反转层的同时执行存储器操作来提供最小沟道存储器件以使用最小沟道器件作为存储器件， 在侧门上形成侧门。 构成：在半导体衬底（30）上形成氧化层（24）。 主栅极（21）形成在氧化物层上。 绝缘层（25）围绕主门的右侧和左侧表面。 第一和第二栅极（22,23）的功函数不同于主栅极的功函数，分别形成在主栅极的右侧和左侧表面上，而绝缘层用作介质。 在第一和第二栅极之下的衬底中形成源极/漏极。 反转层（26,27）形成在第一和第二栅极下方的衬底中，与源极/漏极相邻。

公开(公告)号：KR1020030000747A

公开(公告)日：2003-01-06

申请号：KR1020010036850

申请日：2001-06-27

Applicant: 이지케이 주식회사 ,  한국과학기술원

Inventor： 신형철 ,  김훈 ,  이종호 ,  안영준

IPC: H01L27/10

Abstract: PURPOSE: A minimum channel memory device is provided to use a minimum channel device as a memory device by forming a side gate of relatively small work function on the side surface of a main gate and by performing a memory operation while using an inversion layer and the side gate formed on the side gate. CONSTITUTION: An oxide layer(24) is formed on a semiconductor substrate(30). The main gate(21) is formed on the oxide layer. An insulation layer(25) surrounds the right and left side surfaces of the main gate. The first and second gates(22,23) have work function different than that of the main gate, respectively formed on the right and left side surfaces of the main gate while the insulation layer is used as a medium. A source/drain is formed in the substrate under the first and second gates. The inversion layer(26,27) is formed in the substrate under the first and second gates, adjacent to the source/drain.

Abstract translation: 目的：提供最小通道存储器件以通过在主栅极的侧表面上形成具有相对较小功函数的侧栅，并且通过在使用反转层的同时执行存储器操作来使用最小通道器件作为存储器件，并且 侧门形成在侧门上。 构成：在半导体衬底（30）上形成氧化物层（24）。 主栅极（21）形成在氧化物层上。 绝缘层（25）围绕主门的左右侧表面。 第一和第二栅极（22,23）具有与主栅极不同的功函数，分别形成在主栅极的左右侧面上，而绝缘层用作介质。 源极/漏极在第一和第二栅极之下的衬底中形成。 反转层（26,27）形成在第一和第二栅极下方的衬底中，邻近源极/漏极。

公开(公告)号：KR100292805B1

公开(公告)日：2001-06-15

申请号：KR1019990003473

申请日：1999-02-03

Applicant: 한국과학기술원

Inventor： 정윤철 ,  김훈

IPC: H04B10/25 ,  H04B10/00

Abstract: 본발명은광섬유액세스망에관한것이며, 특히, 유선망의서비스와유/무선망의서비스를모두수용할수 있는다목적광섬유액세스망을제공하는데 그목적이있다. 본발명에따르면, 하나의중앙기지국과다수의 ONU가분기소자를통하여연결되는이중성형구조의광섬유액세스망에있어서, 분기소자와인접한곳에 LMDS 지역무선기지국이위치하여있으며, 분기소자와인접한곳에 WLL 지역무선기지국이위치하고있고, ONU는상기광섬유액세스망과동선또는동축선으로구성된기존의유선망을연결하며, ONU를통하여전화서비스와데이터서비스및 CATV 서비스가제공되고, ONU가인접한곳에 PCS 지역무선기지국이위치하고있어서, 유선전화서비스를비롯한유선 CATV, 유선데이터서비스뿐 아니라 LMDS, WLL, PCS 등의각종무선서비스까지모두수용할수 있는다목적광섬유액세스망이제공된다.

公开(公告)号：KR1020010037157A

公开(公告)日：2001-05-07

申请号：KR1019990044506

申请日：1999-10-14

Applicant: 한국과학기술원

Inventor： 정윤철 ,  김훈

IPC: H04B10/03 ,  H04B10/275 ,  H04B10/2581

CPC classification number: H04J14/0294 ,  H04B10/2503 ,  H04B10/27 ,  H04B10/2755 ,  H04J14/0283 ,  H04J14/0297 ,  H04J14/0298

Abstract: PURPOSE: A bidirectional self-cure ring type optical communication network of an SCMA(SubCarrier Multiple Access) system, is provided to configure a CBS(Central Base Station) and many ONUs(Optical Network Units) in a ring type using a single optical fiber, and to mount a pair of optical transceivers in the CBS and ONUs. So that an optical fiber can be saved when establishing an initial network and faults can be easily restored. CONSTITUTION: An optical communication network is configured by connecting a CBS(Central Base Station) and many ONUs(Optical Network Units) connected through an optical coupler(250) through a single optical fiber in a ring type. The CBS transmits downward signals to the ONUs by loading the downward signals on mutually different subcarriers, and processes upward signals received from the ONUs. The ONUs transmit upward signals to the CBS by loading the upward signals on inherent subcarriers. And the ONUs receive only signals loaded on the inherent subcarriers among downward signals transmitted from the CBS, and process the received signals. When errors are generated, signals are transmitted in an opposite direction to a transmission direction in a normal operation.

Abstract translation: 目的：提供SCMA（SubCarrier Multiple Access）系统的双向自固化环型光通信网络，使用单根光纤配置CBS（中央基站）和许多具有环形类型的ONU（Optical Network Unit） 并在CBS和ONU上安装一对光收发器。 因此，当建立初始网络时可以节省光纤，并且可以容易地恢复故障。 构成：光通信网络通过连接通过光耦合器（250）连接的CBS（中央基站）和通过环形单个光纤连接的许多ONU（光网络单元）来配置。 CBS通过在相互不同的子载波上载入下行信号向下发送下行信号，并处理从ONU接收到的上行信号。 ONU通过将固有子载波上的信号加载到CBS来向上传送信号。 并且ONU从CBS发送的向下信号中仅接收加载在固有子载波上的信号，并处理接收到的信号。 当产生错误时，在正常操作中，信号以与传输方向相反的方向传输。