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1. WO2014112698 - ADAPTIVE VIDEO STREAMING SYSTEM AND METHOD THEREFOR MULTIPLE CACHE NETWORK

Publication Number WO/2014/112698
Publication Date 24.07.2014
International Application No. PCT/KR2013/006149
International Filing Date 10.07.2013
IPC
H04N 21/43 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
H04N 21/2387 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2387Stream processing in response to a playback request from an end-user, e.g. for trick-play
CPC
H04N 21/234327
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
2343involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
234327by decomposing into layers, e.g. base layer and one or more enhancement layers
H04N 21/2387
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2387Stream processing in response to a playback request from an end-user, e.g. for trick-play
H04N 21/43
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
Applicants
  • 고려대학교 산학협력단 KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION [KR]/[KR]
Inventors
  • 유혁 YOO, Hyuck
  • 이정환 LEE, Jung Hwan
Agents
  • 특허법인 엠에이피에스 MAPS INTELLECTUAL PROPERTY LAW FIRM
Priority Data
10-2013-000574618.01.2013KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) ADAPTIVE VIDEO STREAMING SYSTEM AND METHOD THEREFOR MULTIPLE CACHE NETWORK
(FR) SYSTÈME ET PROCÉDÉ DE LECTURE EN FLUX CONTINU ADAPTATIVE DE VIDÉO AINSI QUE RÉSEAU DE MÉMOIRES CACHES MULTIPLES
(KO) 멀티플 캐시 네트워크에서의 적응적 비디오 스트리밍 시스템 및 방법
Abstract
(EN) The method for adaptive video streaming comprises the steps of: transmitting a content request containing content identification information, content section information and a scalability hierarchical level to at least one cache node; buffering an SVC video segment corresponding to the contents request sequentially downloaded from a cache node starting from the lowest one of the layers contained in the scalability hierarchical level; and reproducing the streaming of the buffered SVC video segment.
(FR) La présente invention concerne un procédé de lecture en flux continue adaptative de vidéo faisant appel aux étapes consistant : à transmettre une requête de contenu contenant des informations d'identification de contenu, des informations de section de contenu et un niveau hiérarchique d'extensibilité à au moins un nœud de mémoire cache ; à mettre en mémoire tampon un segment de contenu vidéo de SVC correspondant à la requête de contenu téléchargée séquentiellement à partir d'un nœud de mémoire cache en commençant par la plus basse des couches contenues dans le niveau hiérarchique d'extensibilité ; et à reproduire la lecture en flux du segment vidéo de SVC mis en mémoire tampon.
(KO) 적어도 하나의 캐시 노드로 컨텐츠 식별 정보, 컨텐츠 섹션 정보 및 스케일러빌리티 계층 레벨을 포함하는 컨텐츠 요청을 전송하고, 어느 하나의 캐시 노드로부터 컨텐츠 요청에 대응하는 SVC 비디오 세그먼트를 스케일러빌리티 계층 레벨에 포함된 계층 중 최하위 계층부터 순차적으로 다운로드하여 버퍼링하고, 버퍼링된 SVC 비디오 세그먼트를 스트리밍 재생한다.
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