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公开(公告)号：KR1020020034704A
公开(公告)日：2002-05-09
申请号：KR1020000065178
申请日：2000-11-03
Applicant: 삼성전자주식회사
Inventor： 이준서
IPC: H04L12/66
Abstract: PURPOSE: A method for managing a channel in a VoIP(Voice over Internet Protocol) system is provided to prevent channel blocking phenomenon by network fail. CONSTITUTION: If a setup request message is received from an end user(200), a gateway requests a ping test to an object IP address on a network of a current assignment channel(202). The gateway judges whether a response is received within one second from a destination corresponding to the object IP address(204). If the response is not received, the gateway reattempts the ping test request on the network(206). The gateway judges whether the response is received within two seconds from the destination corresponding to the object IP address(208). If the response is not received, the gateway reattempts the ping test request on the network(210). The gateway judges whether the response is received within three seconds from the destination corresponding to the object IP address(212). If the response is not received, the gateway releases the corresponding channel(214) and transmits a message so that a PSTN(Public Switched Telephone Network) releases the corresponding channel.
Abstract translation: 目的：提供一种用于管理VoIP（基于因特网协议）系统的信道的方法，以防止网络故障导致信道阻塞现象。 构成：如果从最终用户（200）接收到建立请求消息，则网关向当前分配信道（202）的网络上的对象IP地址请求ping测试。 网关判断在与对象IP地址相对应的目的地的一秒内是否接收到响应（204）。 如果没有收到响应，网关将重新尝试网络上的ping测试请求（206）。 网关判断在与对象IP地址（208）对应的目的地的两秒内是否接收到响应。 如果没有收到响应，网关将重新尝试网络上的ping测试请求（210）。 网关判断在与对象IP地址（212）对应的目的地的三秒钟内是否接收到响应。 如果没有接收到响应，则网关释放对应的信道（214）并发送消息，使得PSTN（公共交换电话网络）释放对应的信道。
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公开(公告)号：KR1020010019442A
公开(公告)日：2001-03-15
申请号：KR1019990035840
申请日：1999-08-27
Applicant: 삼성전자주식회사
Inventor： 이준서
CPC classification number: H04N19/20 , H04N19/96 , H04N19/176 , H04N19/51
Abstract: PURPOSE: A motion compensating method of object-based quad-tree mesh using greedy algorithm is provided so that a complicated and local moving picture can be compensated exactly by using Greedy algorithm. CONSTITUTION: First, at the beginning process, root blocks are formed(400) and then the respective blocks are divided as a quad tree(410). When the respective blocks are compensated, an amount of reduction of moving compensation errors, moving vectors, and the rate of increasement of quad tree coding bits on the basis of the quad tree dividing transfer(420). In the current quad tree dividing state, the block having the most dividing gain is divided again by the quad tree process(430). Dividing gain is obtained again by blocks influenced by the above blocks(440). Thereafter, it is discriminated whether the current rate is less than the object rate(450).
Abstract translation: 目的：提出一种使用贪心算法的基于对象的四叉树网格运动补偿方法，通过使用贪婪算法可以准确地补偿复杂和局部的动态图像。 构成：首先，在开始处理中，形成根块（400），然后将各个块划分为四叉树（410）。 当各个块被补偿时，基于四叉树分割传输（420）减少移动补偿误差，移动向量和四叉树编码比特的增加率。 在当前的四叉树分割状态下，具有最大分割增益的块再次被四叉树处理（430）分割。 分割增益再次通过受上述方框（440）影响的方块获得。 此后，判断当前速率是否小于对象速率（450）。
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