公开(公告)号：US20160337091A1

公开(公告)日：2016-11-17

申请号：US15110854

申请日：2015-01-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  YONSEI UNIVERSITY WONJU INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Chang Ki KIM ,  Kwang Deok SEO ,  Jeong Ju YOO ,  Jin Woo HONG

IPC: H04L1/18 ,  H04L12/841

CPC classification number: H04L1/1896 ,  H04L1/1825 ,  H04L1/1838 ,  H04L1/1864 ,  H04L47/26 ,  H04L47/283

Abstract: The present invention discloses a method of re-transmission of a lost MMT packet by a packet transmission apparatus. The method includes generating a media processing unit (MPU) based on a media fragment unit (MFU) and generating an MMT asset by encapsulating the MPU; generating an MMT packet based on the MPU included in the generated MMT asset; and transmitting the generated MMT packet, wherein the method further comprises adding, in a signaling message related to re-transmission of the MMT packet, delay_constrained_ARQ_flag to indicate whether or not the MMT packet transmission apparatus supports a delay-constrained automatic repeat request (ARQ) function.

Abstract translation: 本发明公开了一种通过分组发送装置重传丢失的MMT分组的方法。 该方法包括基于媒体片段单元（MFU）生成媒体处理单元（MPU）并通过封装MPU生成MMT资产; 基于生成的MMT资产中包含的MPU生成MMT分组; 以及发送所生成的MMT分组，其中所述方法还包括在与所述MMT分组的重传相关的信令消息中添加delay_constrained_ARQ_flag，以指示MMT分组传输装置是否支持延迟约束的自动重传请求（ARQ） 功能。

公开(公告)号：US20140233630A1

公开(公告)日：2014-08-21

申请号：US13967861

申请日：2013-08-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Jung KIM ,  Chang Ki KIM ,  Jeong Ju YOO ,  Jin Woo HONG ,  Byung Gyu KIM ,  Gwang Soo HONG

IPC: H04N7/26

CPC classification number: H04N19/33 ,  H04N19/115 ,  H04N19/164 ,  H04N19/179

Abstract: An apparatus and method for adaptive layer selection and a server having the same are provided. The adaptive layer selecting apparatus includes a monitoring unit monitoring a connection state of at least one channel connected through a communication network, a channel managing unit detecting available channels to be used for providing a service based on a result of the monitoring, and a layer managing unit determining the number of adaptive layers to be used for encoding based on bandwidths of changed available channels when the number of the available channels is changed.

Abstract translation: 提供了一种用于自适应层选择的装置和方法以及具有该装置和方法的服务器。 自适应层选择装置包括：监视通过通信网络连接的至少一个信道的连接状态的监视单元;基于监视结果检测用于提供服务的可用信道的信道管理单元;以及层管理 当可用信道的数量改变时，单元基于改变的可用信道的带宽确定要用于编码的自适应层的数量。

公开(公告)号：US20150117243A1

公开(公告)日：2015-04-30

申请号：US14525562

申请日：2014-10-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chang Ki KIM ,  Jeong Ju YOO ,  Jin Woo HONG

IPC: H04L12/26

CPC classification number: H04N17/004 ,  H04N21/24 ,  H04N21/242

Abstract: A method of transmitting a Moving Picture Experts Group (MPEG) Media Transport (MMT) signaling message for Measurement Configuration (MC) processing in an MMT sending entity. The method includes generating an MC message with header information by setting a measurement mode (measurement_mode), which indicates information on a measurement start time (measurement_start_time) of a measurement item in an MMT receiving entity, to one of: an immediate measurement start, a measurement start at a predetermined time, a measurement start based on a predetermined condition, and an immediate measurement stop; and transmitting an MMT packet including the generated MC message to an MMT receiving entity.

Abstract translation: 一种在MMT发送实体中发送用于测量配置（MC）处理的运动图像专家组（MPEG）媒体传输（MMT）信令消息的方法。 该方法包括通过将指示关于MMT接收实体中的测量项目的测量开始时间（measurement_start_time）的信息的设置测量模式（measurement_mode）设置为以下之一来生成具有头信息的MC消息：立即测量开始， 在预定时间开始测量，基于预定条件进行测量开始和立即测量停止; 以及向MMT接收实体发送包括所生成的MC消息的MMT分组。

公开(公告)号：US20180375624A1

公开(公告)日：2018-12-27

申请号：US16121926

申请日：2018-09-05

Applicant: Electronics and Telecommunications Research Institute ,  YONSEI UNIVERSITY WONJU INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Chang Ki KIM ,  Kwang Deok SEO ,  Jeong Ju YOO ,  Jin Woo HONG

IPC: H04L1/18 ,  H04L12/825 ,  H04L12/841

Abstract: The present invention discloses a method of re-transmission of a lost MMT packet by a packet transmission apparatus. The method includes generating a media processing unit (MPU) based on a media fragment unit (MFU) and generating an MMT asset by encapsulating the MPU; generating an MMT packet based on the MPU included in the generated MMT asset; and transmitting the generated MMT packet, wherein the method further comprises adding, in a signaling message related to re-transmission of the MMT packet, delay_constrained_ARQ_flag to indicate whether or not the MMT packet transmission apparatus supports a delay-constrained automatic repeat request (ARQ) function.

公开(公告)号：US20130268985A1

公开(公告)日：2013-10-10

申请号：US13857500

申请日：2013-04-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chang Ki KIM ,  Tae Jung KIM ,  Jeong Ju YOO ,  Young Ho JEONG ,  Jin Woo HONG

IPC: H04N21/2385

CPC classification number: H04N21/2385 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/631

Abstract: An apparatus and method for transmitting and receiving a channel adaptive hierarchical broadcast are provided. A channel adaptive hierarchical broadcast transmission apparatus may include a multilayer video dividing unit to divide an input multilayer video bitstream into a first layer video bitstream and a second layer video bitstream, and a multi-transmission channel managing unit to determine transmission channels that are to be used to transmit the first layer video bitstream and the second layer video bitstream, among multiple transmission channels, and to output the first layer video bitstream and the second layer video bitstream to transmitters associated with the determined transmission channels, respectively.

Abstract translation: 提供了一种用于发送和接收信道自适应分层广播的装置和方法。 信道自适应分层广播发送装置可以包括：多层视频分割单元，用于将输入多层视频比特流划分为第一层视频比特流和第二层视频比特流;以及多传输信道管理单元，用于确定要传送的传输信道 用于在多个传输信道中传输第一层视频比特流和第二层视频比特流，并将第一层视频比特流和第二层视频比特流分别输出到与所确定的传输信道相关联的发射机。