公开(公告)号：KR1020050078774A

公开(公告)日：2005-08-08

申请号：KR1020040006610

申请日：2004-02-02

Applicant: 삼성전자주식회사

Inventor： 추교신 ,  이학구 ,  이민재

IPC: H04L12/22

CPC classification number: H04L63/0428 ,  H04W4/08 ,  H04W80/04

Abstract: 본 발명은 Mobile IPv6(Internet Protocol version 6) 패킷을 보안하는 장치 및 방법에 관한 것으로, 본 발명에 따른 패킷 보안 방법은 외부 링크에 존재하는 이동 노드가 이동 노드의 홈 링크에 존재하는 홈 에이전트에 이동 노드의 주소를 등록하고 있는 중인지를 확인하는 단계; 및 주소를 등록하고 있는 중인 것으로 확인되면, 이동 노드가 전송하고자 하는 패킷을 폐기하는 단계를 포함하며, 패킷이 보안되지 않은 채널을 통하여 불특정 다수에게 노출 또는 유실되는 것을 방지한다.

公开(公告)号：KR1020050070950A

公开(公告)日：2005-07-07

申请号：KR1020030101580

申请日：2003-12-31

Applicant: 삼성전자주식회사

Inventor： 이학구

IPC: H04L12/40

CPC classification number: H04L65/80 ,  H04L47/78

Abstract: 본 발명은 댁내 네트워크 환경에 QOS를 보장하는 장치 및 방법에 관한 것으로, 본 발명에 따른 QOS가 보장된 실시간 서비스 개시 방법은 실시간 서비스 또는 비실시간 서비스를 개시하는 소정의 응용에 대한 정보를 포함하는 자원 할당 정보를 입력받고, 입력받은 자원 할당 정보가 기록된 자원 할당 패킷을 전송하는 단계; 및 전송된 자원 할당 패킷을 수신하고, 수신된 자원 할당 패킷으로부터 자원 할당 정보를 추출하고, 추출된 자원 할당 정보에 포함된 소정의 응용에 대한 정보를 기반으로 실시간 서비스를 제공하는 응용들에 대해 QOS가 보장되도록 실시간 서비스 또는 비실시간 서비스를 제공하고 있는 다수의 응용들 및 소정의 응용에 자원을 할당하고, QOS가 보장되도록 자원이 할당되었는지에 관한 정보인 QOS 정보를 포함하는 QOS 정보 패킷을 전송하는 단계를 포함하며, 다수의 응용들의 데이터 전송률의 총합이 네트워크 자원을 초과하게 되는 경우에 비실시간 서비스를 제공하는 응용들에 제약을 가하여 실시간 서비스를 제공하는 응용들에 QOS를 보장할 수 있다.

公开(公告)号：KR1020050043428A

公开(公告)日：2005-05-11

申请号：KR1020030078330

申请日：2003-11-06

Applicant: 삼성전자주식회사

Inventor： 이용훈 ,  이학구

IPC: H04L12/66

Abstract: MN(Mobile Node)과 모바일 IPv6스택이 없는 CN(Corresponding Node)간의 통신을 제어하는 게이트웨이 장치 및 그 방법이 개시되어 있다. 본 발명은 상대방 노드로부터 모바일 IPv6 에러 메세지를 수신하면 이동 노드의 홈 어드레스와 케어-오브 어드레스 연결 확인 메시지를 이동 노드에게 전송하고 이동 노드의 홈 어드레스와 케어-어브 어드레스를 매핑하는 과정, 상대방 노드로부터 패킷을 수신할 경우 그 패킷의 목적지 주소가 상기 과정에서 매핑된 이동 노드의 원격지 어드레스로 변경하여 전송하는 과정을 포함한다.

公开(公告)号：KR100467612B1

公开(公告)日：2005-01-24

申请号：KR1020020056484

申请日：2002-09-17

Applicant: 삼성전자주식회사

Inventor： 이학구

IPC: G06F3/03

Abstract: PURPOSE: A device and a method for deciding a position of a mouse laser pointer are provided to decide a directed position of a laser pointer from an image reflected from a screen and transmit the directed position as the cursor position information. CONSTITUTION: A reduced light receiver(12) reduces/receives the image reflected from the screen(11) and a laser image having a frequency band from the image. A sum image generator(13) of each micro-lens generates a sum image of each micro-lens by collecting the reduced/received sum image of each micro-lens as the micro-lenses penetrate the reduced/received sum image into a collecting panel arranged in a grid form. A band pass filter(15) filters the converted electric signals of each micro-lens in order to pass only the frequency band of the laser image. A mouse cursor position information decider(16) decides the position of the electric signal of each micro-lens passing the band pass filter as the position information of the mouse cursor.

Abstract translation: 目的：提供一种用于决定鼠标激光指示器的位置的装置和方法，以根据从屏幕反射的图像确定激光指示器的指示位置，并发送指示位置作为光标位置信息。 构成：减小的光接收器（12）从图像减少/接收从屏幕（11）反射的图像和具有频带的激光图像。 每个微透镜的总和图像发生器（13）通过收集每个微透镜的缩小/接收总和图像来产生每个微透镜的总和图像，因为微透镜将缩小/接收总和图像穿透到收集面板 以网格形式排列。 带通滤波器（15）对每个微透镜的转换后的电信号进行滤波以仅通过激光图像的频带。 鼠标光标位置信息判定器（16）将通过带通滤波器的每个微透镜的电信号的位置确定为鼠标光标的位置信息。

公开(公告)号：KR1020040107702A

公开(公告)日：2004-12-23

申请号：KR1020030036743

申请日：2003-06-09

Applicant: 삼성전자주식회사

Inventor： 이학구 ,  김영근 ,  김선우 ,  신상현

IPC: G06F15/16

CPC classification number: H04L45/02 ,  H04L45/04

Abstract: PURPOSE: A method for advertising a DNS(Domain Name Server) address on an IPv6(Internet Protocol version 6) network and a routing method using the same are provided to make hosts inquiring a location of the DNS automatically set the DNS address by dynamically searching the location of the DNS with a routing protocol and informing all routers connected to the network of location information of the DNS. CONSTITUTION: The location of the DNS existing on the network is searched by using the dynamic routing protocol(S1210). Link state information of the router having the DNS in a subnet is stored in an LSA(Link State Advertisement) of the router and the LSA information is transferred to all routers within an autonomous system including the router through a flooding process(S1220). If the router receives the DNS address, the router replies to the DNS address and the router receiving a reply advertises an RA(Router Advertisement) message including the DNS address information to the subnet including the router receiving the reply(S1230).

Abstract translation: 目的：提供一种在IPv6（Internet Protocol Version 6）网络上广告DNS（域名服务器）地址的方法，并提供使用该方法的路由方法，使主机通过动态搜索自动设置DNS地址 DNS路由协议的位置，并通知连接到网络的所有路由器的DNS的位置信息。 规定：使用动态路由协议搜索存在于网络上的DNS的位置（S1210）。 具有子网中的DNS的路由器的链路状态信息存储在路由器的LSA（链路状态通告）中，LSA信息通过洪泛过程传送到包括路由器的自治系统内的所有路由器（S1220）。 如果路由器收到DNS地址，则路由器回复DNS地址，接收到回复的路由器将包含DNS地址信息的RA（路由器通告）消息通告给包含接收回复的路由器的子网（S1230）。

公开(公告)号：KR100453056B1

公开(公告)日：2004-10-15

申请号：KR1020020034132

申请日：2002-06-18

Applicant: 삼성전자주식회사

Inventor： 이학구 ,  김영근 ,  김선우 ,  이재황

IPC: H04L12/28

CPC classification number: H04L45/12

Abstract: A method and apparatus for more efficiently operating a network environment, and more particularly, for discovery and change of a path maximum transmission unit (PMTU) between a source node and a destination node on a dynamic IP network is provided. A PMTU discovery packet is generated with a maximum transmission unit (MTU) information storage space in which an MTU value on a routing path between the source node and the destination node is stored, wherein the generated PMTU discovery packet is transmitted to the destination node. If a response packet to the PMTU discovery packet from the destination node is received, the PMTU is changed according to MTU information contained in the response packet. The MTU value stored in the MTU information storage space is compared with a link MTU value on a path which the PMTU discovery packet traverses, and the smaller one of the stored MTU value and the link MTU value on the path which the packet traverses is stored in the MTU information storage space. According to the method, a PMTU can be determined in a shorter time, and it is possible to minimize the use of network resources, compared to the prior art PMTU changing method.

Abstract translation: 提供了用于更有效地操作网络环境的方法和设备，并且更具体地，提供了用于动态IP网络上的源节点和目的节点之间的路径最大传输单元（PMTU）的发现和改变的方法和装置。 以存储源节点和目的节点之间的路由路径上的MTU值的最大传输单元（MTU）信息存储空间生成PMTU发现分组，其中，生成的PMTU发现分组被发送到目的地节点。 如果接收到来自目的地节点的PMTU发现分组的响应分组，则根据响应分组中包含的MTU信息来改变PMTU。 将存储在MTU信息存储空间中的MTU值与PMTU发现分组经过的路径上的链路​​MTU值进行比较，并存储分组经过的路径上的较小一个MTU值和链路MTU值 在MTU信息存储空间中。 根据该方法，可以在更短的时间内确定PMTU，并且与现有技术的PMTU改变方法相比，可以最小化网络资源的使用。

公开(公告)号：KR100453055B1

公开(公告)日：2004-10-15

申请号：KR1020020034131

申请日：2002-06-18

Applicant: 삼성전자주식회사

Inventor： 이학구 ,  김영근 ,  김선우 ,  임용준

IPC: H04L12/28

CPC classification number: H04L69/16 ,  H04L69/166 ,  H04L69/167

Abstract: A method for more efficiently operating a network, and more particularly, for discovery of a path maximum transmission unit (PMTU) between nodes on an IP network, is provided. The method includes (a) comparing the size of a received packet with a maximum transmission unit (MTU) of a next link; and (b) if the size of the received packet is greater than the MTU of the next link, generating an error message, transmitting the generated error message to a source node, generating a test message of the size of the MTU of the next link, and transmitting the generated test message to a destination node. According to the PMTU discovery method, a PMTU can be determined in a shorter time, and it is possible to minimize the use of network resources.

Abstract translation: 提供了用于更有效地操作网络的方法，更具体地，用于发现IP网络上的节点之间的路径最大传输单元（PMTU）的方法。 该方法包括（a）将接收到的分组的大小与下一链路的最大传输单元（MTU）进行比较; （b）如果所接收的分组的大小大于下一个链路的MTU，则生成错误消息，将生成的错误消息发送到源节点，生成下一链路的MTU的大小的测试消息 ，并将生成的测试消息发送到目的节点。 根据PMTU发现方法，可以在更短的时间内确定PMTU，并且可以最小化网络资源的使用。

公开(公告)号：KR1020040070891A

公开(公告)日：2004-08-11

申请号：KR1020030007117

申请日：2003-02-05

Applicant: 삼성전자주식회사

Inventor： 이재황 ,  김평수 ,  이학구

IPC: H04L12/46

CPC classification number: H04W36/12 ,  H04W36/18 ,  H04W60/04

Abstract: PURPOSE: A handover method in a wireless LAN environment and a mobile node device for performing handover are provided to reduce message transmission between an access point and an access router by adding a specific field in which an access router identifier in a management frame is inserted. CONSTITUTION: A mobile node is moved in a 802.11 wireless LAN environment and an access router transmits a beacon signal at a certain period(S710). When the mobile node is moved into a different access point, it receives a beacon signal from the access point(S720) and checks an AR ID included in the beacon signal to determine whether the beacon signal is the same subnet(S730, S740). If the beacon signal is the same subnet, the mobile node performs a wireless LAN layer 2 handover to join to the moved access point(S750). If the beacon signal is a different subnet, the mobile node performs layer 2 handover(S760) and layer 3 handover(S770).

Abstract translation: 目的：提供无线LAN环境中的切换方法和用于执行切换的移动节点设备，通过添加其中插入管理帧中的接入路由器标识符的特定字段来减少接入点和接入路由器之间的消息传输。 规定：移动节点在802.11无线局域网环境中移动，接入路由器在一定周期内发送信标信号（S710）。 当移动节点移动到不同的接入点时，它从接入点接收信标信号（S720），并检查信标信号中包括的AR ID，以确定信标信号是否是相同的子网（S730，S740）。 如果信标信号是相同的子网，则移动节点执行无线LAN层2切换以加入移动的接入点（S750）。 如果信标信号是不同的子网，则移动节点执行层2切换（S760）和层3切换（S770）。

公开(公告)号：KR100438722B1

公开(公告)日：2004-07-05

申请号：KR1020020024437

申请日：2002-05-03

Applicant: 삼성전자주식회사

Inventor： 이학구 ,  김영근 ,  김선우

IPC: H04L12/66

Abstract: PURPOSE: A voice DNS(Domain Name System) service method and system is provided to offer DNS services using voices. CONSTITUTION: A PDA inputs the name of a web site through a microphone in order to access a specific Internet site(710). The inputted voice data are encoded by the voice encoder of the PDA(720). A packet containing the voice data is transferred to a gateway(730). The gateway reads and decodes the encoded voice data contained in the packet transmitted from the PDA(740). The decoded voice data are immediately recognized through a voice recognition part(750). The voice recognition part checks whether the voice recognition is successful(760). In case that the voice recognition is successful, the recognized voice data are converted into text data(770). A search part searches for a domain name mapped with the text data(780). The gateway transmits a DNS query to a DNS using the searched domain name instead of the PDA(790). In response to the DNS query, the DNS transmits an IP address for the domain name to the PDA(792).

Abstract translation: 目的：提供语音DNS（域名系统）服务方法和系统，以使用语音提供DNS服务。 构成：PDA通过麦克风输入网站的名称以便访问特定的因特网站点（710）。 输入的语音数据由PDA的语音编码器编码（720）。 包含语音数据的分组被传送到网关（730）。 网关读取和解码包含在从PDA发送的分组中的编码语音数据（740）。 经解码的语音数据通过语音识别部分立即识别（750）。 语音识别部分检查语音识别是否成功（760）。 在语音识别成功的情况下，识别的语音数据被转换成文本数据（770）。 搜索部分搜索与文本数据映射的域名（780）。 网关使用搜索到的域名而不是PDA将DNS查询发送到DNS（790）。 响应于DNS查询，DNS将该域名的IP地址发送给PDA（792）。

公开(公告)号：KR1020030078591A

公开(公告)日：2003-10-08

申请号：KR1020020034132

申请日：2002-06-18

Applicant: 삼성전자주식회사

Inventor： 이학구 ,  김영근 ,  김선우 ,  이재황

IPC: H04L12/28

CPC classification number: H04L45/12

Abstract: PURPOSE: A method for changing a PMTU(Path Maximum Transmission Unit) in a dynamic IP network is provided to search the PMTU of a current routing path, and to change the PMTU according to the searched result, thereby quickly determining the PMTU and minimizing resource consumption. CONSTITUTION: A source node(710) generates an OIP(Option Inserted Packet)(780), and transmits the OIP(780) to a destination node(770). The first node(720) receives the OIP(780), compares a stored MTU value with a next hop link, and transmits a smaller value to the destination node(770). The fourth node(750) receives the OIP(780), compares a stored MTU value with a next hop link, and transmits a smaller value to the destination node(770). The fifth node(760) receives the OIP(780), compares a stored MTU value with a next hop link, and transmits a smaller value to the destination node(770). The destination node(770) generates an OIP(790), and transmits the OIP(790) to the source node(710). The fifth node(760) receives the OIP(790), and transmits the OIP(790) to the source node(710). The fourth node(750) receives the OIP(790), and transmits the OIP(790) to the source node(710). The first node(720) receives the OIP(790), and transmits the OIP(790) to the source node(710). The source node(710) divides packets according to a stored PMTU value, and transmits the divided packets.

Abstract translation: 目的：提供一种在动态IP网络中改变PMTU（路径最大传输单元）的方法，以搜索当前路由路径的PMTU，并根据搜索结果更改PMTU，从而快速确定PMTU并最小化资源 消费。 构成：源节点（710）生成OIP（选项插入分组）（780），并将OIP（780）发送到目的地节点（770）。 第一节点（720）接收OIP（780），将存储的MTU值与下一跳链路进行比较，并将较小的值发送到目的地节点（770）。 第四节点（750）接收OIP（780），将存储的MTU值与下一跳链路进行比较，并将更小的值发送到目的地节点（770）。 第五节点（760）接收OIP（780），将存储的MTU值与下一跳链路进行比较，并将较小的值发送到目的地节点（770）。 目的地节点（770）生成OIP（790），并将OIP（790）发送到源节点（710）。 第五节点（760）接收OIP（790），并将OIP（790）发送到源节点（710）。 第四节点（750）接收OIP（790），并将OIP（790）发送到源节点（710）。 第一节点（720）接收OIP（790），并将OIP（790）发送到源节点（710）。 源节点（710）根据存储的PMTU值划分分组，并发送分割的分组。