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1. WO2020072789 - SERVICE DESCRIPTION FOR STREAMING MEDIA DATA

Publication Number WO/2020/072789
Publication Date 09.04.2020
International Application No. PCT/US2019/054524
International Filing Date 03.10.2019
IPC
H04N 21/235 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
235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
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
H04N 21/262 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
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 or learning user preferences for recommending movies
262Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/43 2011.01
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 21/6543 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client; Communication details between server and client
65Transmission of management data between client and server
654Transmission by server directed to the client
6543for forcing some client operations, e.g. recording
H04N 21/845 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
845Structuring of content, e.g. decomposing content into time segments
CPC
H04N 21/2187
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
21Server components or server architectures
218Source of audio or video content ; , e.g. local disk arrays
2187Live feed
H04N 21/23439
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
23439for generating different versions
H04N 21/2353
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
235Processing of additional data, e.g. scrambling of additional data or processing content descriptors
2353specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
H04N 21/2393
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
239Interfacing the upstream path of the transmission network, e.g. prioritizing client ; content; requests
2393involving handling client requests
H04N 21/2402
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
24Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
2402Monitoring of the downstream path of the transmission network, e.g. bandwidth available
H04N 21/242
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
242Synchronization processes, e.g. processing of PCR [Program Clock References]
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • STOCKHAMMER, Thomas
  • LEUNG, Nikolai Konrad
Agents
  • DAWLEY, Brian
Priority Data
16/591,07302.10.2019US
62/740,76503.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SERVICE DESCRIPTION FOR STREAMING MEDIA DATA
(FR) DESCRIPTION DE SERVICE POUR DES DONNÉES MULTIMÉDIAS DIFFUSÉES EN CONTINU
Abstract
(EN)
A device for receiving media data includes a memory configured to store media data of a media presentation and one or more processors implemented in circuitry and configured to retrieve a service description including data including one or more playback preferences for the media presentation, the playback preferences including a desired end-to-end latency; retrieve the media data of the media presentation via a network streaming protocol; and present the retrieved media data according to the one or more playback preferences and to achieve the desired end-to-end latency. For example, the playback preferences may specify acceleration or deceleration of playback rates in order to achieve the desired end-to-end latency. Thus, the device may accelerate playback if a buffer is filling too quickly, or decelerate playback if the buffer is emptying too quickly, to prevent buffer overflow or underflow and thereby avoid playback interruptions without changing the latency.
(FR)
Selon l'invention, un dispositif permettant de recevoir des données multimédias contient une mémoire configurée pour stocker des données multimédias d'une présentation multimédia et un ou plusieurs processeurs mis en œuvre dans de la circuiterie et configurés pour récupérer une description de service contenant des données contenant une ou plusieurs préférences de lecture pour la présentation multimédia, les préférences de lecture contenant une latence de bout en bout souhaitée ; récupérer les données multimédias de la présentation multimédia par l'intermédiaire d'un protocole de diffusion en continu en réseau ; et présenter les données multimédias extraites selon la ou les préférences de lecture et pour obtenir la latence de bout en bout souhaitée. Par exemple, les préférences de lecture peuvent spécifier une accélération ou une décélération des vitesses de lecture afin d'obtenir la latence de bout en bout souhaitée. Ainsi, le dispositif peut accélérer la lecture si un tampon se remplit trop rapidement, ou ralentir la lecture si le tampon se vide trop rapidement, pour éviter un débordement ou un soupassement de tampon et éviter ainsi des interruptions de lecture sans changer la latence.
Also published as
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