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    • 1. 发明授权
    • 비디오 포맷이 다른 이종 단말기간 영상통화 연결방법
    • 视频格式不同的不同种类终端之间的图像间接连接方法
    • KR101462222B1
    • 2014-11-17
    • KR1020130089641
    • 2013-07-29
    • 삼성에스디에스 주식회사
    • 정인권
    • H04N7/14
    • H04N7/147H04L29/06197H04L29/06517
    • 본 발명은 비디오 포맷이 다른 이종 단말기간 영상통화 연결방법을 개시한 것으로, 이러한 본 발명은 SIP 시그널링에 파라미터 정보(sprop-parameter-sets)의 키값이 없으면 가로모드를 기본적으로 적용하고, 키값이 존재하면 키값을 디코딩하여 해상도 정보와 가로모드 또는 세로모드인지를 저장하는 한편, RTP패킷으로 I-Frame 패킷을 타임 설정을 통해 주기적으로 전송하도록 구성한 것이며, 이에따라 RTP패킷으로 PPS정보가 들어오지 않거나 로스(loss)에 의한 유실에 대비하여 저장된 해상도 정보와 가로모드 또는 세로모드를 결정하고, 이를 통해 MRF서버를 경유하지 않으면서 단말기가 지원하지 않는 해상도를 변경하지 않아도 비디오 포맷이 서로 다른 이종 단말기간의 영상통화 연결이 이루어질 수 있도록 하고, 특히 패킷 로스와 영상 왜곡시에도 영상 복구가 용이하게 이루어질 수 있도록 하면서, 서로 다른 비디오 포맷을 가지는 이종 단말기들을 가지는 사용자들이 별도의 장비 사용없이 최적의 영상통화 해상도로 영상통화를 즐길 수 있도록 하는 것이다.
    • 在本发明中公开了一种具有不同视频格式的不同种类终端之间的视频呼叫连接方法。 本发明:如果SIP信令不具有参数信息的密钥值(sprop-parameter-set),则基本上应用水平模式; 通过时间设置周期性地将I帧分组发送到RTP分组,同时通过在键值存在的情况下通过解码键值来存储分辨率信息和水平模式或垂直模式,从而确定分辨率信息和水平模式或垂直方向 准备PPS信息不进入RTP包或丢失时引起的丢失的模式; 能够在不通过MRF服务器的不同类型的终端之间形成视频呼叫连接,并且通过确定结果改变终端不支持的分辨率; 并且特别是使具有不同视频格式的不同种类的终端的用户能够在不使用单独的设备的情况下享受具有最佳视频呼叫分辨率的视频呼叫,同时即使在分组丢失和图像失真的情况下也容易执行图像恢复。
    • 3. 发明公开
    • RTP 패킷화 모드별 비트율 생성 방법
    • 基于RTP包模式生成比特率的方法
    • KR1020080050941A
    • 2008-06-10
    • KR1020070040511
    • 2007-04-25
    • 한국전자통신연구원
    • 정순흥김재곤홍진우
    • H04N21/63H04L29/06H04L12/825
    • H04N21/4621H04L29/06517H04L65/608H04N19/30H04N21/4343
    • A method for generating a bit rate of each RTP(Real time Transport Protocol) packetization mode is provided to effectively stream SVC(Scalable Video Coding) video without overhead. If a packet type is an SNU(Single NAL Unit) type, a bit rate is calculated according to a bit rate generation method of an SNU mode(401). If a packet type is an STAP-A(Simple-Time Aggregation Packet-A), the size of NAL(Network Abstraction Layer) units with respect to layers to be transmitted within the same frame is checked(402). The sizes of the NAL units are added one by one as transmission priority levels with respect to the layers to be transmitted within the same frame such that they do not exceed a threshold value to thus generate a plurality of STAP-A(Simple-Time Aggregation Packet-A) type packets, and the number of STAP-A type packets is calculated(403). The number of the generated STAP-A type packets and the number of FU-A(Fragmentation Unit-A) type packets are added, to which the size of a corresponding header size to obtain a certain value, and the certain value is added to the bit amount of the generated STAP-A type packets and the FU-A type packets to generate a bit rate(404).
    • 提供了一种用于生成每个RTP(实时传输协议)分组化模式的比特率的方法,以有效地流式传输SVC(可缩放视频编码)视频,而无需开销。 如果分组类型是SNU(单NAL单元)类型,则根据SNU模式的比特率生成方法(401)计算比特率。 如果分组类型是STAP-A(简单时间聚合分组A),则检查相对于在同一帧内要发送的层的NAL(网络抽象层)单元的大小(402)。 NAL单元的大小相对于要在同一帧内发送的层的传输优先级逐个添加,使得它们不超过阈值,从而生成多个STAP-A(简单时间聚合 Packet-A)类型的报文,计算STAP-A类型报文数(403)。 添加生成的STAP-A类型数据包的数量和FU-A(Fragmentation Unit-A)类型数据包的数量,对应的报头大小的大小获得一定值,并将该值添加到 产生的STAP-A类型分组的比特量和FU-A类型分组以生成比特率(404)。
    • 4. 发明公开
    • 시간지연 방송콘텐츠 방송시스템 및 방송방법
    • 用于时间延迟广播内容的广播系统和方法
    • KR1020070113650A
    • 2007-11-29
    • KR1020060047181
    • 2006-05-25
    • 파이로웍스(주)
    • 최태암
    • H04N5/76
    • H04N21/2668H04H20/02H04L29/06455H04L29/06517H04N19/40H04N21/231H04N21/647
    • A broadcasting system and a broadcasting method for time-delayed broadcasting contents are provided to allow a user in a different country to feel as if one views broadcasting program in real time. A broadcasting content transmitting/receiving apparatus(100) receives broadcasting contents from a plurality of broadcasting stations in real time to provide the broadcasting contents to broadcasting content time delay devices(200,200a) in real time over an international network(150). The broadcasting content time delay device(200) delays the broadcasting contents by preset time intervals to transmit the delayed broadcasting contents to a time-delay broadcasting content repeater(300) through a domestic network. The time-delay broadcasting content repeater(300) stores the received time-delayed broadcasting contents according to channels, and provides the time-delayed broadcasting contents to user equipment according to the demand of the user equipment.
    • 提供广播系统和用于时间延迟广播内容的广播方法,以允许不同国家的用户感觉到实时地观看广播节目。 广播内容发送/接收设备(100)实时地从多个广播站接收广播内容,以通过国际网络(150)实时地向广播内容时延设备(200,200a)提供广播内容。 广播内容延迟装置(200)以预设的时间间隔延迟广播内容,以通过家庭网络将延迟的广播内容发送到延时广播内容中继器(300)。 延时广播内容中继器(300)根据信道存储接收到的延时广播内容,并根据用户设备的需求向用户设备提供延时广播内容。
    • 9. 发明公开
    • 네트워크 카메라를 채용한 원격 감시 시스템
    • 使用网络摄像机的远程监控系统
    • KR1020090037741A
    • 2009-04-16
    • KR1020070103228
    • 2007-10-12
    • 에릭슨 엘지 주식회사
    • 우종욱
    • H04N7/18
    • H04N7/181H04L29/06517H04L65/608H04N17/002
    • A remote surveillance system using a network camera is provided to reduce image transmission bandwidth from the network camera when the network camera is out of order. A network transceiver(202) transmits and receives video data and management data through a network. An RTP(Realtime Transport Protocol) receiver(204) receives RTP data including encoded video data. A video decoder(206) decodes a video of a network camera. A video display unit(208) converts the transmitted video into video that a user can see and displays the converted video. An RTCP transceiver(212) transceives an RTCP(RTP Control Protocol) packet carried by RTP transmission. A pure video data part is extracted while the received video data passes an RTP receiver.
    • 提供使用网络摄像机的远程监控系统,以在网络摄像机故障时减少网络摄像机的图像传输带宽。 网络收发器(202)通过网络发送和接收视频数据和管理数据。 RTP(实时传输协议)接收器(204)接收包括编码视频数据的RTP数据。 视频解码器(206)解码网络摄像机的视频。 视频显示单元(208)将所发送的视频转换成用户可以看到并显示转换的视频的视频。 RTCP收发器(212)收发由RTP传输承载的RTCP(RTP控制协议)分组。 在接收到的视频数据通过RTP接收机的同时提取纯视频数据部分。
    • 10. 发明公开
    • 무선 데이터통신망별로 최적화된 스트리밍 서비스 제공방법 및 장치
    • 每个无线数据通信网络提供优化流程服务的方法和设备
    • KR1020080035204A
    • 2008-04-23
    • KR1020060101553
    • 2006-10-18
    • 주식회사 케이티프리텔
    • 신태훈이진철김형식
    • G06Q50/30G06Q50/10H04L29/06
    • G06Q50/30G06Q50/10H04L29/06517
    • A method and an apparatus for providing a streaming service optimized for each radio data communication network are provided to provide high quality services to customers under various environments by offering the streaming service with maximum transmission efficiency owned by each radio data communication network. A method for providing a streaming service comprises the following several steps. A streaming server receives a streaming service request for selected contents from a user terminal(S10). The streaming server obtains information on radio data communication network accessed by the user terminal and information on the user terminal(S20). The streaming server receives data on the requested contents as RTP(Realtime Transfer Protocol) data from a multimedia server while the received data is being encoded by an RTE(Realtime Encoder) and packetizes the RTP data with an extracted MTU(Maximum Transfer Unit) size(S30). The streaming server transmits the RTP packets to the user terminal over the radio data communication network(S40).
    • 提供了一种用于提供针对每个无线电数据通信网络优化的流服务的方法和装置,以通过以每个无线电数据通信网络拥有的最大传输效率提供流服务来向各种环境下的客户提供高质量的服务。 一种用于提供流服务的方法包括以下几个步骤。 流服务器从用户终端接收所选内容的流服务请求(S10)。 流服务器获取用户终端访问的无线数据通信网络的信息和用户终端的信息(S20)。 流式传输服务器在所接收的数据由RTE(实时编码器)编码的同时从多媒体服务器接收所请求的内容上的数据作为RTP(实时传送协议)数据,并以提取的MTU(最大传送单元)大小对RTP数据进行打包 (S30)。 流服务器通过无线电数据通信网络将RTP分组发送到用户终端(S40)。