公开(公告)号：US20130016282A1

公开(公告)日：2013-01-17

申请号：US13546994

申请日：2012-07-11

申请人： Sung Hei KIM ,  Kwang Deok Seo ,  Tae Jun Jung ,  Chang Kyu Lee ,  Shin Gak Kang

发明人： Sung Hei KIM ,  Kwang Deok Seo ,  Tae Jun Jung ,  Chang Kyu Lee ,  Shin Gak Kang

IPC分类号： H04N5/06

CPC分类号： H04N21/242 ,  H04N21/4305 ,  H04N21/8547

摘要： A method of providing timing information for synchronizing packet streams delivered from a first server and a second server, respectively, that are different from each other under hybrid delivery service environment is provided. The first server delivers a first media object and the second server delivers a second media object. The timing information for synchronizing a second packet including the second media object and a first packet including the first media object is generated in the second server. The timing information and the second packet including the second media object are provided from the second server to the client.

摘要翻译： 提供了一种提供用于同步在混合传送服务环境下彼此不同的从第一服务器和第二服务器传送的分组流的定时信息的方法。 第一个服务器提供第一个媒体对象，第二个服务器提供第二个媒体对象。 在第二服务器中生成用于同步包括第二媒体对象的第二分组和包括第一媒体对象的第一分组的定时信息。 从第二服务器向客户端提供定时信息和包括第二媒体对象的第二分组。

公开(公告)号：US20110087775A1

公开(公告)日：2011-04-14

申请号：US12902502

申请日：2010-10-12

申请人： Seung-Ik LEE ,  Jong Hwa Yi ,  Sung Hei Kim ,  Wook Hyun ,  Shin Gak Kang

发明人： Seung-Ik LEE ,  Jong Hwa Yi ,  Sung Hei Kim ,  Wook Hyun ,  Shin Gak Kang

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04L67/104

摘要： A peer-to-peer (P2P) control device receives peer registration requests from a plurality of peers which want to receive contents and registers information regarding the plurality of peers, and receives an application service and contents registration request from at least one contents server providing contents and registers the information regarding the application service and contents. When the P2P control device receives a request for generating an overlay of desired contents from a requesting peer, it generates a P2P overlay, a logical path along which contents are to be transmitted to the requesting peer, by using the registered information regarding the plurality of peers, information regarding a network to which the plurality of peers are connected, and information regarding the application service corresponding to the desired contents, and delivers the connection information to the requesting peer with reference to the P2P overlay.

摘要翻译： 点对点（P2P）控制设备从多个对等体接收对等体注册请求，该对等体希望接收内容并登记关于多个对等体的信息，并从至少一个内容服务器接收应用服务和内容注册请求，提供 内容并注册有关应用服务和内容的信息。 当P2P控制装置从请求对等体接收到生成期望内容的覆盖的请求时，通过使用关于多个的对等体的注册信息，生成P2P覆盖，将内容发送到请求对等体的逻辑路径 对等体，关于多个对等体连接的网络的信息，以及关于与期望内容相对应的应用服务的信息，并且参考P2P覆盖将该连接信息发送到请求对等体。

公开(公告)号：US20080130577A1

公开(公告)日：2008-06-05

申请号：US11928568

申请日：2007-10-30

申请人： Juyoung Park ,  Shin Gak Kang

发明人： Juyoung Park ,  Shin Gak Kang

IPC分类号： H04Q7/00

CPC分类号： H04W4/08 ,  H04W8/186

摘要： A wireless multicasting service method using a relayed transmission scheme is provided. In the wireless multicasting service method, a mobile node moves from a first wireless network to a second wireless network. Then, the mobile node performs a new joining request to a mobile multicast agent managing a multicasting service in the second wireless network. If the mobile node receives a joining approval for the new joining request, the mobile node performs a secession request to a previous mobile multicast agent managing a multicasting service in the first wireless network.

摘要翻译： 提供一种使用中继传输方案的无线多播服务方法。 在无线多播服务方法中，移动节点从第一无线网络移动到第二无线网络。 然后，移动节点对管理第二无线网络中的多播服务的移动多播代理执行新的加入请求。 如果移动节点接收到新的加入请求的加入许可，则移动节点对在第一无线网络中管理多播服务的先前的移动多播代理执行分离请求。

公开(公告)号：US07200654B2

公开(公告)日：2007-04-03

申请号：US10675604

申请日：2003-09-29

申请人： Seok Joo Koh ,  Ju Young Park ,  Shin Gak Kang

发明人： Seok Joo Koh ,  Ju Young Park ,  Shin Gak Kang

IPC分类号： G06F15/173 ,  G06F11/00 ,  H04L12/28

CPC分类号： H04L12/1854 ,  H04L12/1836

摘要： Disclosed herein is a method of constructing and managing an overlay multicast tree on the Internet. The overlay multicast tree includes a sender, one or more receivers and one or more agents for relaying data. At the first step, a new participant requests access to the overlay multicast tree from a tree manager while transmitting network characteristic information thereof to the tree manager. The second step is determining an optimal parent node in consideration of the network character information of the new participant having requested access at the first step and network characteristic information of agents participating in a currently constructed overlay multicast tree, and transmitting information of the determined parent node to the new participant. The new participant establishes data channels on the basis of the information of the determined parent node at the third step.

摘要翻译： 本文公开了一种在因特网上构建和管理覆盖多播树的方法。 覆盖多播树包括发送者，一个或多个接收者和用于中继数据的一个或多个代理。 在第一步，新的参与者请求从树管理器访问覆盖多播树，同时向树管理器传送其网络特性信息。 第二步是考虑在第一步骤中具有请求接入的新参与者的网络字符信息和参与当前构造的覆盖多播树的代理的网络特征信息来确定最佳父节点，并且发送确定的父节点的信息 给新的参与者。 新参与者在第三步骤基于所确定的父节点的信息建立数据信道。

公开(公告)号：US20110137993A1

公开(公告)日：2011-06-09

申请号：US12962280

申请日：2010-12-07

申请人： Jong Hwa YI ,  Seung-ik Lee ,  Sung Hei Kim ,  Wook Hyun ,  Shin Gak Kang

发明人： Jong Hwa YI ,  Seung-ik Lee ,  Sung Hei Kim ,  Wook Hyun ,  Shin Gak Kang

IPC分类号： G06F15/16

CPC分类号： H04L67/2823 ,  H04L12/1822 ,  H04L12/1827 ,  H04L51/066 ,  H04L65/403 ,  H04L67/303 ,  H04N21/222 ,  H04N21/2335 ,  H04N21/234309 ,  H04N21/2355 ,  H04N21/25808 ,  H04N21/6125

摘要： A system and method for providing a conference service using a network service based on user terminal capabilities are provided. In the method, it is determined to perform media conversion required for media transfer corresponding to the capabilities of the user terminal in response to a conference service join request, and a transcoding service location of a network device supporting the media conversion is searched over the Internet. Then, a connection is made to the transcoding service location to perform the media conversion, and the converted media is delivered to the user terminal.

摘要翻译： 提供了一种基于用户终端能力使用网络服务提供会议服务的系统和方法。 在该方法中，响应于会议服务加入请求，确定执行与用户终端的能力对应的媒体传送所需的媒体转换，并且通过因特网搜索支持媒体转换的网络设备的代码转换服务位置 。 然后，连接到代码转换服务位置以执行媒体转换，并且转换的媒体被传送到用户终端。

公开(公告)号：US20090080344A1

公开(公告)日：2009-03-26

申请号：US12086053

申请日：2006-12-08

申请人： Juyoung Park ,  Shin Gak Kang ,  Ok-Jo Jeong ,  Eiyeon Kwon

发明人： Juyoung Park ,  Shin Gak Kang ,  Ok-Jo Jeong ,  Eiyeon Kwon

IPC分类号： H04L12/28

CPC分类号： H04L12/44 ,  H04L12/1886 ,  H04L12/189

摘要： A method of configuring a multicast agent and a 1:N overlay multicast network considering a wireless local area network (WLAN) environment of the same are provided. The method includes: a session manger generating a first database with entries of multicast agents subscribing to a session and multicast agents that have applied for subscription to a session but have not been confirmed for normal operation; a multicast agent generating a second database with entries of a path from the root of a tree to which the multicast agent belongs, a hierarchical relation in the tree, the list of probed neighboring nodes, and a list of not-probed neighboring nodes; the multicast agent subscribing to the overlay network; obtaining information on neighboring multicast agents; setting a multicast agent which is determined to be optimal based on the obtained information, as a parent node; and if a multicast agent providing a tree improved from the current tree is found, changing the parent node. According to the method, multicast communication can be easily introduced into a wireless environment without particular modification of existing Internet router equipment.

摘要翻译： 提供了考虑其无线局域网（WLAN）环境来配置多播代理和1：N重叠组播网络的方法。 该方法包括：会话管理器，生成具有订阅会话的多播代理的条目的第一数据库和已经申请订阅会话但未被正常操作确认的多播代理; 多播代理，生成具有来自组播代理所属的树根的路径的条目的第二数据库，树中的分层关系，探测邻近节点的列表以及未探测的相邻节点的列表; 订阅覆盖网络的组播代理; 获取相邻多播代理的信息; 作为父节点，将基于所获得的信息确定为最佳的多播代理; 并且如果发现从当前树提供树改进的多播代理，则改变父节点。 根据该方法，可以容易地将组播通信引入到无线环境中，而不需要特定地修改现有的因特网路由器设备。

公开(公告)号：US07457288B2

公开(公告)日：2008-11-25

申请号：US10933656

申请日：2004-09-02

申请人： Juyoung Park ,  Shin Gak Kang

发明人： Juyoung Park ,  Shin Gak Kang

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L12/1886 ,  H04L12/185

摘要： Provided are a relay multicast system and method for providing efficient group communication services. In the relay multicast system, each multicast feeder can make a peer to open connection with multicast feeders in other classes by selecting an optimal multicast feeder based on available resources of each relay multicast feeder in order to efficiently form a data forwarding route of a relay group. Also, in order to form a relay channel, the relay multicast system negotiates and uses a most appropriate channel between hops, not a data forwarding channel unified in a session or group. Also, in order to forward data to a specific group, the relay multicast system connects local multicast domains, in which it is possible to multicast or broadcast on a small scale as in a local area network (LAN) or a company network in which multicast members of the group are included, without changing an existing 1:1 unicast based Internet infrastructure.

摘要翻译： 提供了一种用于提供有效的组通信服务的中继组播系统和方法。 在中继组播系统中，每个组播馈线可以通过基于每个中继多播馈线的可用资源选择最佳组播馈线，使对等体与其他类中的组播馈线打开连接，从而有效地形成中继组的数据转发路由 。 此外，为了形成中继信道，中继组播系统协商并使用跳数之间最合适的信道，而不是在会话或组中统一的数据转发信道。 此外，为了将数据转发到特定组，中继组播系统连接本地组播域，其中可以小规模地组播或广播，如局域网（LAN）或其中组播的公司网络 包括该组的成员，而不改变现有的1：1基于单播的互联网基础设施。

公开(公告)号：US20080279118A1

公开(公告)日：2008-11-13

申请号：US11962427

申请日：2007-12-21

申请人： Wook HYUN ,  Mi Young HUH ,  Il Jin LEE ,  Jae Cheon HAN ,  Shin Gak KANG

发明人： Wook HYUN ,  Mi Young HUH ,  Il Jin LEE ,  Jae Cheon HAN ,  Shin Gak KANG

IPC分类号： H04L12/16 ,  G06F15/16

CPC分类号： H04L12/1818 ,  H04L29/12594 ,  H04L61/3085 ,  H04L65/1006 ,  H04L65/403

摘要： A system for providing a session initiation protocol based conference service includes: a conference host terminal that produces requests to setup a call using identification information, to make a registration of participants to be invited to a conference session using a conference identifier, and to initiate the conference session using the conference identifier; a plurality of conference participant terminals as the participants that participate in the conference session; and a conference server having the identification information. The conference server issues the conference identifier to the conference session; stores therein the participant information; and sends to each of the conference participant terminals corresponding to the stored participant information a message to invite the conference participant terminal to the conference session, the message containing the conference identifier, thereby creating the conference session with conference participant terminals which have sent to the conference server acknowledgement messages.

摘要翻译： 一种用于提供基于会话发起协议的会议服务的系统，包括：会议主机终端，其使用识别信息产生用于建立呼叫的请求，以使得使用会议标识符来邀请参加者登记到会议会话，并且启动 会议会议使用会议标识符; 作为参加会议的参与者的多个会议参与者终端; 以及具有识别信息的会议服务器。 会议服务器向会议会议发出会议标识符; 在其中存储参与者信息; 并将与存储的参与者信息相对应的每个会议参与者终端发送给邀请会议参与者终端到会议会话的消息，该消息包含会议标识符，从而与已经发送到会议的会议参与者终端创建会议会话 服务器确认消息。

公开(公告)号：US20080222277A1

公开(公告)日：2008-09-11

申请号：US11577381

申请日：2005-11-04

申请人： Ju Young Park ,  Eun Sook Kim ,  Ei Yeon Kwon ,  Shin Gak Kang ,  Ok Jo Jeong

发明人： Ju Young Park ,  Eun Sook Kim ,  Ei Yeon Kwon ,  Shin Gak Kang ,  Ok Jo Jeong

IPC分类号： G06F15/16

CPC分类号： H04L41/0823 ,  H04L12/185 ,  H04L12/1877 ,  H04L67/26 ,  H04L67/322

摘要： Provided is a method and apparatus for configuring and managing an overlay multicast data delivery tree in a transmission network having a SM (session manager) and at least one MA (multicast agent). The method includes the steps of at the MA intending to joining a session, obtaining an active neighbor MA list from the SM; detecting information on QoS information of each neighbor MA in the active neighbor MA list, selecting a MA having the most optimized QoS as a parent MA based on the QoS information of each Neighbor MA in the active neighbor MA list, joining an overlay multicast data communication session through the selected parent MA, periodically receiving HB (heart beat) information having information on a path from a root to the MA and determining whether to perform a parent-switching based on me HB information and parent-switching from the current parent MA to a MA having a better QoS when it is determined to perform the parent-switching

摘要翻译： 提供了一种用于在具有SM（会话管理器）和至少一个MA（多播代理）的传输网络中配置和管理覆盖多播数据传送树的方法和装置。 该方法包括以下步骤：在MA中加入会话，从SM获取活动邻居MA列表; 检测活动邻居MA列表中每个邻居MA的QoS信息的信息，基于活动邻居MA列表中每个邻居MA的QoS信息选择具有最优化QoS的MA作为父MA，加入覆盖组播数据通信 通过选择的母MA进行会话，周期性地接收具有从根到MA的路径的信息的HB（心跳）信息，并且基于我HB信息和从当前父MA切换到父节点来确定是否执行父切换 当确定执行父切换时，具有更好的QoS的MA

公开(公告)号：US07085813B2

公开(公告)日：2006-08-01

申请号：US10170595

申请日：2002-06-14

申请人： Mi Young Huh ,  Wook Hyun ,  Shin Gak Kang

发明人： Mi Young Huh ,  Wook Hyun ,  Shin Gak Kang

IPC分类号： G06F15/16

CPC分类号： H04L65/1006 ,  H04L29/06027 ,  H04L29/12009 ,  H04L29/12047 ,  H04L29/12594 ,  H04L61/15 ,  H04L61/30 ,  H04L61/3085 ,  H04L67/325

摘要： Disclosed herein is a method for synchronizing user registration information in an inter-domain. In this synchronization method, the current position information of a random user is registered through a register message when the user moves from one user agent to another. An up-sync message is transmitted upstream of a tree structure and a down-sync message is transmitted downstream of the tree structure when user registration information is created or changed. The synchronization of the user registration information is carried out in upper and lower session initiation protocol servers/registrars having received the up-sync and down-sync messages, respectively.