公开(公告)号：KR100932926B1

公开(公告)日：2009-12-21

申请号：KR1020070133744

申请日：2007-12-18

Applicant: 한국전자통신연구원

Inventor： 박태준 ,  김세한 ,  김내수 ,  표철식 ,  이재용 ,  김병철

IPC: H04B7/26

CPC classification number: H04W72/02 ,  H04W72/0406 ,  Y02D70/142 ,  Y02D70/166

Abstract: 본 발명은 USN(Ubiquitous Sensor Network) 기반의 MAC에서 다중채널 액세스를 제어하는 장치 및 방법에 관한 것이다. 이를 위해 본 발명의 다중채널액세스제어장치는 송신센서노드에서 데이터채널 중 가용할 수 있는 적어도 하나 이상의 가용채널을 검색하는 채널검색부; 송신센서노드는 컨트롤채널센싱 및 백오프를 통해 상기 컨트롤채널을 선점한 후 프리앰블을 컨트롤 채널에 주기적으로 방송하는 컨트롤채널선점부;및 수신센서노드는 수신한 프리앰블을 기초로 송신센서노드가 가용할 수 있는 가용채널을 파악하고 그 중 수신센서노드에서 가용할 수 있는 채널을 선택하여 그 정보를 송신센서노드에 전송하는 가용채널교환부;를 포함한다.
채널검색, 채널 협상

Abstract translation: 提供了一种用于在基于USN的MAC中控制多信道接入的装置和方法。 多通道访问控制装置包括信道扫描器，控制信道预占方和可用信道交换机。 信道扫描器扫描Tx传感器节点中的N个数据信道中的至少一个或多个可用信道。 控制信道预占在Tx传感器节点中通过控制信道感测和退避来控制控制信道，并且周期性地在控制信道上广播前导码。 可用信道交换机在Rx传感器节点中，根据接收到的前导码检测Tx传感器节点可用的可用信道，在检测到的可用信道中选择可用于Rx传感器节点的信道，并发送关于所选择的信道的信息 通道到Tx传感器节点。

公开(公告)号：KR100476316B1

公开(公告)日：2005-03-16

申请号：KR1020020063421

申请日：2002-10-17

Applicant: 한국전자통신연구원

Inventor： 김진태 ,  김병철 ,  정명영

IPC: B29D11/00

Abstract: 본 발명은 광소자와 광섬유 간의 광결합 효율을 증대시키기 위한 마이크로 렌즈(micro-lense)에 관한 것으로, 실린더 형태의 홈이 형성된 마스터와 고분자층을 핫 엠보싱 공정으로 압착시켜 실린더 형태의 마이크로 렌즈를 성형하되, 마스터의 표면처리를 통해 접촉각을 조절함으로써 서로 다른 곡률반경을 갖으며 광결합 효율이 높은 마이크로 렌즈 어레이를 제작할 수 있다. 또한, 고분자를 사용함으로써 저비용으로 대량생산이 가능해진다.

公开(公告)号：KR1020040036785A

公开(公告)日：2004-05-03

申请号：KR1020020065121

申请日：2002-10-24

Applicant: 한국전자통신연구원

Inventor： 김진태 ,  김병철 ,  정명영

IPC: G02B6/30

CPC classification number: G02B6/3636 ,  G02B6/30 ,  G02B6/3652 ,  G02B6/3688 ,  G02B6/3696

Abstract: PURPOSE: An optical coupling device and a method for manufacturing the same, a master for the optical coupling device and a method for manufacturing the same are provided to increase the mechanical stability of the optical fiber array by forming the supporting jaw between the optical fibers. CONSTITUTION: An optical coupling device includes a substrate(1), a plurality of waveguides(2a), a plurality of supporting grooves(2c) and a clad(2). The plurality of waveguides(2a) is formed on the protrusion parts of the middle portion of the clad(2) in a lengthwise direction. The plurality of supporting grooves(2c) is formed on the depression part placed both ends of the protrusion part of the clad(2) with isolating by the supporting jaw(2b).

Abstract translation: 目的：提供一种光耦合装置及其制造方法，用于光耦合装置的主机及其制造方法，用于通过在光纤之间形成支撑爪来增加光纤阵列的机械稳定性。 构成：光耦合装置包括基板（1），多个波导（2a），多个支撑槽（2c）和包层（2）。 在包层（2）的中间部分的突出部分沿长度方向形成多个波导（2a）。 多个支撑槽（2c）形成在由支撑爪（2b）隔离的位于包层（2）的突出部分的两端的凹陷部分上。

公开(公告)号：KR1020010064279A

公开(公告)日：2001-07-09

申请号：KR1019990062433

申请日：1999-12-27

Applicant: 한국전자통신연구원 ,  주식회사 케이티

Inventor： 권율 ,  안윤영 ,  김병철 ,  김동호 ,  조유제

IPC: H04L12/28

CPC classification number: H04L12/5601 ,  H04L49/3081 ,  H04L2012/5636 ,  H04L2012/5646

Abstract: PURPOSE: A congestion information relay method of a binary feedback switch for an ABR(Available Bit Rate) service is provided to rapidly relay not only congestion information of a current switch but also congestion information transmitted from a front end switch to a lower end switch without a queuing delay. CONSTITUTION: If a data cell is transmitted from a front end switch(S41), a system checks an EFCI(Explicit Forward Congestion Indication) bit of the data cell(S42). If the EFCI bit is '1', the system sets up a relayed EFCI flag as '1'(S43). The system resets the EFCI bit of the data cell in order to prevent the same congestion information from being transmitted twice(S44). If the EFCI bit is '0', the system sets up the relayed EFCI flag as '0'(S45).

Abstract translation: 目的：提供一种用于ABR（可用比特率）服务的二进制反馈交换机的拥塞信息中继方法，不仅可以快速中继当前交换机的拥塞信息，而且可以快速中继从前端交换机向下一端交换机发送的拥塞信息，而不会 排队延误 构成：如果从前端交换机发送数据信元（S41），则系统检查数据信元的EFCI（显式正向拥塞指示）位（S42）。 如果EFCI位为“1”，则系统设置中继的EFCI标志为“1”（S43）。 系统复位数据单元的EFCI位，以防止发送两次相同的拥塞信息（S44）。 如果EFCI位为“0”，系统会将中继的EFCI标志设置为“0”（S45）。

公开(公告)号：KR1020090066121A

公开(公告)日：2009-06-23

申请号：KR1020070133744

申请日：2007-12-18

Applicant: 한국전자통신연구원

Inventor： 박태준 ,  김세한 ,  김내수 ,  표철식 ,  이재용 ,  김병철

IPC: H04B7/26

CPC classification number: H04W72/02 ,  H04W72/0406 ,  Y02D70/142 ,  Y02D70/166 ,  H04B7/2612 ,  H04W74/002 ,  Y02D70/00

Abstract: An apparatus and a method for controlling a multiple channel access by using preamble are provided to reduce power consumption by retransmission and improve transmission quality by increasing the transmission probability. A channel searcher(110) searches a transmission sensor node and an available channel. A control channel pre-occupier(120) preoccupies a control channel and broadcasts the preamble periodically. An available channel exchanger(130) selects the channel in a receiving sensor node based on preamble and transmits the channel selection information to the transmission sensor node.

Abstract translation: 提供一种用于通过使用前导码来控制多信道接入的装置和方法，以通过重传来减少功耗并通过增加传输概率来提高传输质​​量。 信道搜索器（110）搜索传输传感器节点和可用信道。 控制信道预占用者（120）重点控制信道并周期性地广播前导码。 可用信道交换机（130）基于前导码选择接收传感器节点中的信道，并将信道选择信息发送到传输传感器节点。

公开(公告)号：KR100912825B1

公开(公告)日：2009-08-18

申请号：KR1020070133742

申请日：2007-12-18

Applicant: 한국전자통신연구원

Inventor： 김세한 ,  박태준 ,  김내수 ,  표철식 ,  이재용 ,  김병철

IPC: H04L12/28 ,  H04L29/06

CPC classification number: H04L67/125 ,  H04L67/12 ,  H04L67/18 ,  H04W4/02 ,  H04W52/0235 ,  H04W52/028 ,  H04W76/27 ,  Y02D70/166

Abstract: Provided are a transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method and a channel status information updating method of a sensor node based on multiple channels. The transmitting apparatus and method transmit a wake-up signal for switching neighbor nodes in a power-saving mode in a transmission range of the sensor node to a wake-up mode in which the neighbor nodes wait to receive a message from the sensor node through the control channel, transmit a preamble message including a list of unused available channels from among the data channels to a receiving node to which data is transmitted from among the neighbor nodes through the control channel, receive an acknowledgement message including information that indicates a channel selected from the available channels from the receiving node through the control channel, transmit a connection confirmation message for switching neighbor nodes other than the receiving node to the power-saving mode through the control channel, and transmit data to the receiving node through the selected channel.

公开(公告)号：KR1020090066120A

公开(公告)日：2009-06-23

申请号：KR1020070133742

申请日：2007-12-18

Applicant: 한국전자통신연구원

Inventor： 김세한 ,  박태준 ,  김내수 ,  표철식 ,  이재용 ,  김병철

IPC: H04L12/28 ,  H04L29/06

CPC classification number: H04L67/125 ,  H04L67/12 ,  H04L67/18 ,  H04W4/02 ,  H04W52/0235 ,  H04W52/028 ,  H04W76/27 ,  Y02D70/166

Abstract: A transmission device of a sensor node based on multi-channels using a wakeup signal, a transmission method, a transmission device and a channel state information update method are provided to improve the reliability and performance and extend the life time of network. A wakeup signal transmitter(110) transmits wakeup signal. A preamble transmitter(120) transmits a preamble message to a receiving node delivering data among adjacent nodes. A receive acknowledgement message receiver(130) receives the receive acknowledgement message. A connection confirm message transmitter transmits the connection confirm message. A connection confirming message converts adjacent nodes except for the receiving node into the power saving state. A data transmitter transmits data in the receiving node.

Abstract translation: 提供基于使用唤醒信号的多信道的传感器节点的传输设备，传输方法，传输设备和信道状态信息更新方法，以提高可靠性和性能并延长网络的使用寿命。 唤醒信号发送器（110）发送唤醒信号。 前导发射机（120）向接收节点发送前导消息，以在相邻节点之间传送数据。 接收确认消息接收器（130）接收接收确认消息。 连接确认消息发送器发送连接确认消息。 连接确认消息将除了接收节点之外的相邻节点转换成省电状态。 数据发送器在接收节点中发送数据。

公开(公告)号：KR100444180B1

公开(公告)日：2004-08-11

申请号：KR1020020066171

申请日：2002-10-29

Applicant: 한국전자통신연구원

Inventor： 최춘기 ,  김병철 ,  정명영

IPC: G02B6/12

Abstract: PURPOSE: A method for manufacturing two dimensional polymer optical waveguide by using a hot embossing process is provided to manufacture the two dimensional polymer optical waveguide having a high density and a cost effective in comparison with one dimensional optical waveguide. CONSTITUTION: A method for manufacturing two dimensional polymer optical waveguide by using a hot embossing process includes the steps of: (a) forming core pattern on both sides of the intermediate clad layer by pressing the top and bottom master into the intermediate layer under a predetermined temperature; (b) injecting the core material into the core pattern of the intermediate clad layer; and (c) attaching the top and bottom clad layer to the intermediate clad layer inserted thereinto the core material.

Abstract translation: 目的：提供一种通过使用热压印工艺来制造二维聚合物光波导的方法，以制造与一维光波导相比高密度和成本有效的二维聚合物光波导。 本发明的目的在于提供一种利用热压花加工制造二维聚合物光波导的方法，其包括以下步骤：（a）在中间包层的两侧形成芯图案， 温度; （b）将芯材注入中间包层的芯图案中; 和（c）将顶部和底部包层连接到插入其中的芯材的中间包层。

公开(公告)号：KR1020040034806A

公开(公告)日：2004-04-29

申请号：KR1020020063421

申请日：2002-10-17

Applicant: 한국전자통신연구원

Inventor： 김진태 ,  김병철 ,  정명영

IPC: B29D11/00

CPC classification number: B29D11/00365 ,  B05D1/005 ,  B29C43/52 ,  B29C2043/023 ,  B29C2043/025 ,  B29C2059/023 ,  B29D11/0048 ,  C08J7/12

Abstract: PURPOSE: Provided is a method for manufacturing a micro-lens, which controls the bending radius of the lens easily and precisely and produces micro-lenses in a large amount at a low cost. CONSTITUTION: The method for manufacturing a micro-lens(12a) using a master(13) comprises the steps of: forming a polymer layer(12) on a substrate(11); locating the master(13) having multiple cylindrical grooves on the top of the polymer layer(12); heat treating the polymer layer in order to ensure the flow property thereof and compressing the master(13) with the polymer layer(12) to fill the polymer layer(12) into the grooves of the master(13); cooling them to solidify the polymer layer filled into the grooves of the master(13); and removing the master(13).

Abstract translation: 目的：提供一种微型透镜的制造方法，其容易且精确地控制透镜的弯曲半径，并且以低成本大量生产微透镜。 构成：使用母版（13）制造微透镜（12a）的方法包括以下步骤：在基底（11）上形成聚合物层（12）; 将具有多个圆柱形凹槽的主机（13）定位在聚合物层（12）的顶部上; 热处理聚合物层以确保其流动特性并用聚合物层（12）压缩母料（13）以将聚合物层（12）填充到母料（13）的凹槽中; 冷却它们以固化填充到母板（13）的凹槽中的聚合物层; 并卸下主机（13）。

公开(公告)号：KR1020030094712A

公开(公告)日：2003-12-18

申请号：KR1020020031973

申请日：2002-06-07

Applicant: 한국전자통신연구원

Inventor： 한상필 ,  최춘기 ,  김병철 ,  안승호 ,  조인귀 ,  정명영

IPC: G02B6/42

CPC classification number: G02B6/421 ,  G02B6/42 ,  G02B6/4214 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/73265 ,  H01L2924/3011 ,  H01L2924/00014 ,  H01L2924/00

Abstract: PURPOSE: A parallel optical connection module and a method for manufacturing the same are provided to increase the optical output by minimizing the coupling loss in a process for transmitting an optical signal. CONSTITUTION: A parallel optical connection module includes a substrate(10), a silicon optical bench(50), a light source unit/optical detection unit(30), a driving unit/receiving unit(20), an optical waveguide(40), an adaptor(80) and a ferrule(70). The substrate(10) is provided to a heat spreader by forming a trench on a predetermined region, an electrode pad and a predetermined circuit pattern. The silicon optical bench(50) formed on the substrate(10) is provided with a trench. The light source unit/optical detection unit(30) is provided with the light source for generating a light beam and an optical detector for converting the received optical signal into an electrical signal. The driving unit/receiving unit(20) for driving the light source in response to the electric signal and a receiver for outputting the supplied electrical signal through the electrode pad. The optical waveguide(40) is provided with a lower clad layer, an upper clad layer, a core formed between the lower and the upper clad layers. The adaptor(80) is connected to the connector which is connected to the optical fiber. And, the ferrule(70) supports the optical waveguide(40) to the adaptor(80).

Abstract translation: 目的：提供一种并行光连接模块及其制造方法，以通过最小化发送光信号的处理中的耦合损耗来增加光输出。 构成：并联光连接模块包括基板（10），硅光台（50），光源单元/光检测单元（30），驱动单元/接收单元（20），光波导（40） ，适配器（80）和套圈（70）。 通过在预定区域上形成沟槽，电极焊盘和预定的电路图案，将衬底（10）提供给散热器。 形成在基板（10）上的硅光学台（50）设置有沟槽。 光源单元/光学检测单元（30）设置有用于产生光束的光源和用于将接收的光信号转换为电信号的光学检测器。 用于响应于电信号驱动光源的驱动单元/接收单元（20）和用于通过电极焊盘输出所提供的电信号的接收器。 光波导（40）设置有下覆盖层，上覆盖层，形成在下包层和上覆层之间的芯。 适配器（80）连接到连接到光纤的连接器。 并且，套圈（70）将光波导（40）支撑到适配器（80）。