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1. WO2020135461 - METHOD, DEVICE SYSTEM FOR SYNCHRONOUSLY DISPLAYING VIDEO

Publication Number WO/2020/135461
Publication Date 02.07.2020
International Application No. PCT/CN2019/128118
International Filing Date 25.12.2019
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 21/472 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
47End-user applications
472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04N 21/436 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
436Interfacing a local distribution network, e.g. communicating with another STB or inside the home
H04N 13/332 2018.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
30Image reproducers
332Displays for viewing with the aid of special glasses or head-mounted displays
CPC
H04N 13/332
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
30Image reproducers
332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
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 21/258
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
25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
H04N 21/25808
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
25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
258Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
25808Management of client data
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
H04N 21/4307
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
4302Content synchronisation processes, e.g. decoder synchronisation
4307Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 赵平平 ZHAO, Pingping
Priority Data
201811601097.626.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD, DEVICE SYSTEM FOR SYNCHRONOUSLY DISPLAYING VIDEO
(FR) PROCÉDÉ, DISPOSITIF ET SYSTÈME D'AFFICHAGE SYNCHRONE D'UNE VIDÉO
(ZH) 一种视频同步显示的方法、装置及系统
Abstract
(EN)
Disclosed is a method for synchronously displaying a video, comprising the following steps: a user equipment plays a first video; the user equipment receives an instruction to start a synchronous display with a target device; and in response to the instruction of synchronous display, the user equipment obtains status information of the first video, the status information of the video being used for playing the frame of the first video synchronously by the target device and the user equipment. The user equipment sends to the target device the status information of the video such that the target device plays the frame of the first video synchronously according to the status information of the video. According to the method of the present invention, the user equipment is not required to transmit to the target device the image information of the video frame being played, thereby reducing the data bandwidth requirement and the difficulty for implementation during the same-screen display between the user equipment and the target device, and having better compatibility.
(FR)
L'invention concerne un procédé d'affichage synchrone d'une vidéo, comprenant les étapes suivantes : un équipement utilisateur lit une première vidéo ; l'équipement utilisateur reçoit une instruction de démarrage d'un affichage synchrone avec un dispositif cible ; et en réponse à l'instruction d'affichage synchrone, l'équipement utilisateur obtient des informations d'état de la première vidéo, les informations d'état de la vidéo étant utilisées pour lire la trame de la première vidéo de manière synchrone par le dispositif cible et l'équipement utilisateur. L'équipement utilisateur envoie au dispositif cible les informations d'état de la vidéo de telle sorte que le dispositif cible lit la trame de la première vidéo de manière synchrone selon les informations d'état de la vidéo. Selon le procédé de la présente invention, l'équipement utilisateur n'a pas besoin de transmettre au dispositif cible les informations d'image de la trame vidéo en cours de lecture, réduisant ainsi l'exigence de largeur de bande de données et la difficulté de mise en œuvre pendant l'affichage du même à écran entre l'équipement utilisateur et le dispositif cible, et présentant ainsi une meilleure compatibilité.
(ZH)
一种视频同步显示方法,包括用户设备播放第一视频;所述用户设备接收与目标设备开始进行同步显示的指示;响应于所述同步显示的指示,所述用户设备获取所述第一视频的状态信息,所述视频状态信息用于所述目标设备与所述用户设备同步播放所述第一视频的画面,所述用户设备向所述目标设备发送所述视频状态信息,以便于所述目标设备根据所述视频状态信息,同步播放所述第一视频的画面,通过本发明的方法,不需要用户设备将正在播放的视频画面本身的图像信息传输给目标设备,降低了用户设备和目标设备之间在同屏过程中的数据带宽需求和实现难度,具有更好的兼容性。
Also published as
EP2019905815
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