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    스트리밍 컨텐츠 제공 장치 및 방법
    21.
    发明公开
    스트리밍 컨텐츠 제공 장치 및 방법 审中-实审
    提供流水线内容的装置和方法

    公开(公告)号：KR1020140131487A

    公开(公告)日：2014-11-13

    申请号：KR1020140125870

    申请日：2014-09-22

    Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

    Inventor： 탕쯔엉꽁 ,  이진영 ,  강정원 ,  배성준 ,  정순흥 ,  김재곤 ,  박상택 ,  류원

    IPC: H04N21/2381 ,  H04N21/235

    CPC classification number: H04N21/2381 ,  H04N21/235 ,  H04N21/23805 ,  H04N21/2401 ,  H04N21/2662 ,  H04N21/6543

    Abstract: Disclosed are a method and an apparatus for an adaptive HTTP streaming service using metadata of content. The metadata includes a minimum buffer time attribute indicating a minimum amount of initially buffered media content. A terminal receives content from a server before playing the content, and buffers the content by at least the minimum amount. The metadata includes a range attribute designating a range of a target indicated by a URL. The terminal receives bytes designated by the range attribute from the URL, and plays the content using the received bytes.

    Abstract translation: 公开了使用内容的元数据的适应性HTTP流服务的方法和装置。 元数据包括指示最初缓冲的媒体内容的最小量的最小缓冲时间属性。 终端在播放内容之前从服务器接收内容，并且将内容缓冲至少最小量。 元数据包括指定由URL指示的目标的范围的范围属性。 终端从URL接收由range属性指定的字节，并使用接收的字节播放内容。

    스트리밍 서비스 송/수신 장치 및 방법
    27.
    发明公开
    스트리밍 서비스 송/수신 장치 및 방법 失效
    发送/接收流量服务的装置和方法

    公开(公告)号：KR1020120041095A

    公开(公告)日：2012-04-30

    申请号：KR1020110030790

    申请日：2011-04-04

    Applicant: 한국전자통신연구원 ,  연세대학교 산학협력단

    Inventor： 정순흥 ,  서광덕 ,  이진영 ,  배성준 ,  강정원 ,  심상우 ,  탕쯔엉꽁 ,  박상택 ,  류원

    IPC: H04L29/06 ,  H04N7/24

    CPC classification number: H04L65/60 ,  H04L1/0042 ,  H04L29/06027 ,  H04L47/19 ,  H04L47/28 ,  H04L65/604 ,  H04L65/605 ,  H04L65/607 ,  H04L65/80 ,  H04L69/163 ,  H04N21/4302

    Abstract: PURPOSE: An apparatus and a method for transmitting/receiving a streaming service are provided to calculate an inter arrival jitter by using the arrival time and the estimated arrival time of a TCP packet. CONSTITUTION: A TCP packet is received(1210). A clock count TCPa(n+1) is measured(1220). A time stamp TCPt(n+1) is tested(1230). A TCPt(n+1) is extracted from the TCP packet(1240). A network jitter N(n+1) through a TCP(n+1) is calculated(1245). An arrival time interval D(n+1) between the TCP(n+1) and a TCP(n) are calculated(1250). An analysis time for the determination of a de-jitter buffering time is tested(1260). A calculated de-jitter buffering time B(n+1) is determined as a final de-jitter buffering time(1290). The analysis time of T is determined as the final de-jitter buffering time(1295).

    Abstract translation: 目的：提供一种用于发送/接收流服务的装置和方法，以通过使用TCP分组的到达时间和估计的到达时间来计算中间到达抖动。 构成：接收到TCP数据包（1210）。 测量时钟计数TCPa（n + 1）（1220）。 时间戳TCPt（n + 1）被测试（1230）。 从TCP分组（1240）提取TCPt（n + 1）。 计算通过TCP（n + 1）的网络抖动N（n + 1）（1245）。 计算TCP（n + 1）和TCP（n）之间的到达时间间隔D（n + 1）（1250）。 测试去抖动缓冲时间的分析时间（1260）。 计算的去抖动缓冲时间B（n + 1）被确定为最终去抖动缓冲时间（1290）。 T的分析时间被确定为最终去抖动缓冲时间（1295）。

    ＭＧＳ 기반 ＳＶＣ 비트스트림을 ＡＶＣ 비트스트림으로 변환하는 장치
    29.
    发明公开
    ＭＧＳ 기반 ＳＶＣ 비트스트림을 ＡＶＣ 비트스트림으로 변환하는 장치 无效
    用于基于中等粒度的可扩展视频编码比特变换高级视频编码比特的设备

    公开(公告)号：KR1020100008757A

    公开(公告)日：2010-01-26

    申请号：KR1020090062074

    申请日：2009-07-08

    Applicant: 한국전자통신연구원

    Inventor： 탕쯔엉꽁 ,  강정원 ,  유정주 ,  홍진우

    IPC: H04N19/30

    CPC classification number: H04N21/234327 ,  H04N19/132 ,  H04N19/159 ,  H04N19/187 ,  H04N19/40 ,  H04N19/70 ,  H04N21/8451

    Abstract: PURPOSE: A conversion apparatus is provided to rewrite an MGS(Medium Grained Scalability) based SVC(Scalable Video Coding) bit stream into an AVC(Advanced Video Coding) bit stream. CONSTITUTION: An extracting unit an MGS layer of a key picture included in an MGS based SVC bit stream. A generating unit(813) creates the residual signal by adding one or more MGS layers of the key picture through a CGS-to-AVC rewriter. A computing unit(814) computes the corrected residual signal about the key picture based on the difference between the residual signal and DCD(Drift-Compensating Data). A bit stream coding unit(815) creates bit stream of single layer based on predicted data and the corrected residual signal.

    Abstract translation: 目的：提供一种转换装置，用于将基于SVC（可缩放视频编码）比特流的MGS（Medium Grained Scalability）改写为AVC（高级视频编码）比特流。 构成：提取单元包括在基于MGS的SVC位流中的关键画面的MGS层。 生成单元（813）通过CGS-AVC重写器添加关键画面的一个或多个MGS层来创建残差信号。 计算单元（814）基于残差信号和DCD（漂移补偿数据）之间的差计算关于关键图像的校正残差信号。 比特流编码单元（815）基于预测数据和校正的残差信号创建单层的比特流。

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