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1. WO2021000650 - PROGRAM DISTRIBUTION METHOD AND DEVICE, RECEPTION METHOD, TERMINAL APPARATUS, AND MEDIUM

Publication Number WO/2021/000650
Publication Date 07.01.2021
International Application No. PCT/CN2020/089757
International Filing Date 12.05.2020
IPC
H04N 21/2343 2011.01
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
234Processing of video elementary streams, e.g. splicing of video streams or manipulating MPEG-4 scene graphs
2343involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
Applicants
  • 国家广播电视总局广播电视科学研究院 ACADEMY OF BROADCASTING SCIENCE, NRTA [CN]/[CN]
Inventors
  • 郭沛宇 GUO, Peiyu
  • 王磊 WANG, Lei
  • 薛子育 XUE, Ziyu
Agents
  • 北京博雅睿泉专利代理事务所(特殊普通合伙) BEYOND TALENT PATENT AGENT FIRM
Priority Data
201910600092.X04.07.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PROGRAM DISTRIBUTION METHOD AND DEVICE, RECEPTION METHOD, TERMINAL APPARATUS, AND MEDIUM
(FR) PROCÉDÉ ET DISPOSITIF DE DISTRIBUTION DE PROGRAMME, PROCÉDÉ DE RÉCEPTION, APPAREIL TERMINAL ET SUPPORT
(ZH) 节目分发方法和装置、接收方法、终端设备及介质
Abstract
(EN)
Disclosed are a program distribution method and device, a program reception method, a terminal apparatus, and a medium. The method comprises: down-converting a first program to a second program having lower definition; acquiring an up-conversion parameter according to the first program and the second program, the up-conversion parameter being used to convert the second program to the first program; and distributing the second program and the up-conversion parameter to a downstream node.
(FR)
L'invention concerne un procédé et un dispositif de distribution de programme, un procédé de réception de programme, un appareil terminal et un support. Le procédé comprend: la conversion descendante d'un premier programme en un second programme ayant une définition inférieure; l'acquisition d'un paramètre de conversion ascendante en fonction du premier programme et du second programme, le paramètre de conversion ascendante étant utilisé pour convertir le second programme en premier programme; et la distribution du second programme et du paramètre de conversion ascendante à un noeud aval.
(ZH)
本说明书公开了一种节目分发方法和装置、节目接收方法、终端设备及介质,该方法包括:将第一节目通过下变换得到清晰度较低的第二节目;根据第一节目和第二节目获取上变换参数,上变换参数用于将第二节目变换为第一节目;将第二节目和上变换参数分发至下游节点。
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