WO2015195500A1 - Adaptation de canal intelligent pour système de tête de réseau - Google Patents

Adaptation de canal intelligent pour système de tête de réseau Download PDF

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Publication number
WO2015195500A1
WO2015195500A1 PCT/US2015/035725 US2015035725W WO2015195500A1 WO 2015195500 A1 WO2015195500 A1 WO 2015195500A1 US 2015035725 W US2015035725 W US 2015035725W WO 2015195500 A1 WO2015195500 A1 WO 2015195500A1
Authority
WO
WIPO (PCT)
Prior art keywords
programming
channel
tuner
tuners
particular type
Prior art date
Application number
PCT/US2015/035725
Other languages
English (en)
Inventor
Benjamin Thomas Vondersaar
Original Assignee
Thomson Licensing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing filed Critical Thomson Licensing
Publication of WO2015195500A1 publication Critical patent/WO2015195500A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management 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
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2668—Creating a channel for a dedicated end-user group, e.g. insertion of targeted commercials based on end-user profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
    • H04N21/2143—Specialised server platform, e.g. server located in an airplane, hotel, hospital located in a single building, e.g. hotel, hospital or museum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4828—End-user interface for program selection for searching program descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network 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, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network 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, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite

Definitions

  • the present invention relates to headend video distribution systems, and, in particular to use of multiple tuners in a receiving device to create a user configurable custom channel for programs of a specific type, such as sports programs.
  • a multicast system as used herein is a system in which a server transmits the same data to multiple receivers simultaneously, where the receivers form a subset of all the receivers up to and including all of the receivers.
  • a broadcast system is a system in which a server transmits the same data to all of the receivers simultaneously. That is, a multicast system by definition can include a broadcast system.
  • the receiving system includes a modulator card or board that receives the demodulated MPEG-2 transport stream for further distribution.
  • the card includes a QAM modulator that receives MPEG-2 transport packets from an Ethernet port and then QAM modulates the MPEG-2 transport packets on one of a plurality of carrier frequencies. Each input stream results in one output QAM modulated channel (such as cable channel 50-1).
  • the user may further change a video program displayed on the television by changing channels on the television.
  • the receiving system is also typically installed with a limited number of tuning resources (e.g., tuners).
  • tuning resources e.g., tuners
  • the COM 1000 video distribution headend is manually tuned to specific
  • DirecTVTM channels Manual tuning may be accomplished using a remote control device. DirecTV schedules live sports programming across a large number of channels that are only active while the live broadcast is playing and are often difficult to locate. If a hotel wants to offer a package such as Sunday TicketTM or League PassTM, it is very difficult to manually tune those live sports programs at the times necessary.
  • the present invention is a mechanism to create virtual sports channels on a headend video distribution system by automatically tuning to a particular type of programming, such as sports programming, based on preferences. It can manage one or more channels and schedule tuning after scanning and sorting available programs of a specific type based on the user's preconfigured preferences. While the present invention is described in terms of sports programming, other types of programming may be used to create a user configurable channel. Such an example, might be police or cop shows, which might include, Blue Bloods, Rizzoli and Isles, Castle, Law and Order, NCIS , NCIS-LA etc.
  • a method and apparatus for generating a user configurable custom channel including receiving a satellite signal including video streams and program information, scanning the program information to identify programming of a particular type during a period of time, scheduling tuning of programming of the particular type and generating the user configurable custom channel of the tuned programs.
  • Fig. 1 is a block diagram of an embodiment of a content distribution system in accordance with the present disclosure.
  • Fig. 2 is a block diagram of another embodiment of a content distribution system in accordance with the present disclosure.
  • Fig. 3 is an exemplary screen shot of a smart tuning settings screen shot used to create a program guide including a user configurable virtual sports channel in accordance with the principles of the present invention.
  • Fig. 4 is a flowchart of an exemplary embodiment of the generation of a user configurable custom channel in accordance with the principles of the present invention.
  • Fig. 5 is a flowchart of an exemplary embodiment of the operation of a user interface to identify and select a particular (specific) program type for use in generating the user configurable custom channel in accordance with the principles of the present invention.
  • processor or “controller” should not be construed to refer exclusively to hardware capable of executing software, and may implicitly include, without limitation, digital signal processor (DSP) hardware, read only memory (ROM) for storing software, random access memory (RAM), and nonvolatile storage.
  • DSP digital signal processor
  • ROM read only memory
  • RAM random access memory
  • any switches shown in the figures are conceptual only. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the implementer as more specifically understood from the context.
  • any element expressed as a means for performing a specified function is intended to encompass any way of performing that function including, for example, a) a combination of circuit elements that performs that function or b) software in any form, including, therefore, firmware, microcode or the like, combined with appropriate circuitry for executing that software to perform the function.
  • the disclosure as defined by such claims resides in the fact that the functionalities provided by the various recited means are combined and brought together in the manner which the claims call for. It is thus regarded that any means that can provide those functionalities are equivalent to those shown herein.
  • a satellite signal 20 provided by a service provider through a satellite dish is input to a multichannel receiver 30.
  • the satellite signal 20 contains a plurality of program streams (e.g., audio, video, data) organized or grouped into sets of channels or transponders.
  • Multichannel receiver 30 tunes and demodulates one or more channels or transponders of the satellite signal 20 and produces an MPEG-2 transport stream 40 having packets, preferably user datagram protocol (UDP) packets, containing data, audio, and video programming to be distributed to the environment.
  • UDP user datagram protocol
  • receiver 30 includes tuning and demodulation circuits to receive a plurality of channels or transponders simultaneously. It is important to note that other versions may be possible, including systems capable of receiving more or fewer channels or transponders.
  • the MPEG-2 transport stream 40 is preferably transported by an Ethernet link 50 to a quadrature amplitude modulation (QAM) modulator 60 which modulates the MPEG- 2 transport stream 50 to produce one or more QAM channels.
  • QAM quadrature amplitude modulation
  • MPEG-2 transport stream 40 is preferably transported by an Ethernet link 50 to a quadrature amplitude modulation (QAM) modulator 60 which modulates the MPEG- 2 transport stream 50 to produce one or more QAM channels.
  • QAM modulators quadrature amplitude modulation
  • MPEG-2 transport streams it will be appreciated by those skilled in the art that other kinds of modulators are equally usable and many different types of transport protocols are also usable. Therefore, VSB modulators, QPSK modulators, OFDM modulators, and their equivalents are all covered by the current invention.
  • IP signaling transport streams, DVB transport streams, MPEG-4 transport streams, ARIB transport streams, and their equivalents are alsoincluded by way of reference herein.
  • the QAM modulator 60 modulates the MPEG-2 transport stream 40 onto one of twelve carrier frequencies.
  • Each input stream 40 results in an output QAM modulated channel which is output over a coax cable 70 and split into more than one signal using splitter 80.
  • the signals from splitter 80 are provided to TVs 90.
  • a PC 100 is provided interfaced to the receiver 30 to control the data programming necessary to accomplish these results and to provide other functionality to perform the functions of content distribution system 10.
  • the PC includes among other modules a scheduler or scheduling mechanism.
  • FIG. 1 describes a multichannel distribution control system operating with the outputs for the modulators controlled to provide specific streams and with the TV device remaining tuned to a fixed channel.
  • additional operational flexibility may be possible if the television channel programming is also addressable.
  • FIG. 2 another embodiment of a content distribution system according to principles of the disclosure is shown at 15.
  • Content distribution system 15 illustrates a system for delivering content to a plurality of video display devices that also incorporates addressable QAM signal receiving equipment that may be present in, for example, a multi-room facility.
  • Content distribution system 15 includes elements identified by the same reference numbers as shown as shown in Fig. 1. Except as described below, these elements operate in a manner similar to same elements described in Fig. 1 and will not be further described here.
  • Client boxes 85 receive a signal (e.g., a QAM signal) distributed from QAM modulator 60 through splitter 80.
  • Client boxes 85 may be set top or set back converter boxes that are often used with some (older) television sets that may not be capable of receiving QAM signals directly.
  • Client boxes 85 include a QAM tuner input circuit, a signal conversion circuit, a user remote control circuit, a high definition multimedia interface (HDMI) output interface, an audio/video output interface, and a channel 3/4 output interface.
  • Client boxes 85 receive the input signal, convert the input signal to a signal format that is compatible with a television or other type of display device (e.g., TV 90), and provide the converted signal to TVs 90.
  • a signal e.g., a QAM signal
  • Client boxes 85 may be set top or set back converter boxes that are often used with some (older) television sets that may not be capable of receiving QAM signals directly.
  • Client boxes 85 include a QAM tuner input circuit, a signal conversion circuit, a user
  • client boxes 85 are addressable over the communication network through splitter 80.
  • the channel that is tuned by each client box 85 may be controlled by signals sent from QAM modulator 60.
  • Each client box 85 has a unique
  • Receiver Identifier that is used for remote addressability. For example, if a particular client box 85 has a RID of 12345678 then a tuning message signal may be sent using the following exemplary code format for controlling the QAM modulator 60:
  • the code above includes an application identifier at the beginning.
  • the rid is the receiver identification for the device, as described above.
  • the remainder of the code identifies the actual information associated with the command.
  • QAM channel 18-2 includes programming for channel 284 received by a tuner in mulitchannel receiver 30. The programming is provided at output port 34 on QAM modulator 60, which is mapped to RF channel 18, slot 2).
  • the client box tunes to 18-2 while the multichannel receiver 30 tunes to 284 and QAM modulator outputs the program on QAM 18-2.
  • the channel tuned by QAM receiver 30 may be changed, for instance from 284 to 206 manually, by means of a remote control device and/or by using a touch panel.
  • the program from the new channel output will remain streaming out on port 34 from QAM modulator 60, leaving the client box 85 tuned to the same channel.
  • tuners may be tied to QAM output channels and control messages may be sent to client boxes 85.
  • the programming displayed on televisions 90 may be changed either by switching the client boxes 85 to a different QAM channel or by changing the satellite service playing out to a QAM channel that may be married to one or more of the client boxes 85.
  • the code structure shown above may also be used to send a software update to the client boxes 85. This may be accomplished by using PC 100 to receive network messages.
  • the content distribution system 10 in Fig. 1 focuses primarily on conventional RF signal transmission and uses non-addressable physical QAM tuning and channels to deliver media content.
  • certain configurations of the signal distribution systems such as may be found in multi-room facilities, may benefit from the additional flexibility offered by the addressability features described in content distribution system 15. This additional flexibility may be used in conjunction with, or instead of, the system described in Fig. 1.
  • content distribution system 15 may easily be adapted for operation using IP content delivery.
  • the outputs from QAM modulator 60 would be IP streams (e.g., multicast IP streams) and the client box 85 would receive the IP streams and convert the IP streams for delivery to a TV 90.
  • the IP streams, rather than the channels, are controlled through either a modulator (e.g., QAM modulator 60) or a client box (e.g., client box 85) allowing further program stream mapping flexibility.
  • an external control device such as PC 100 described in FIG. 1 or FIG. 2 can send commands to multichannel receiver 30.
  • Multichannel receiver 30 then sends commands to QAM modulator 60.
  • the PC 100 can directly send commands to QAM modulator 60 to dynamically change which MPEG-2 transport streams being received by QAM modulator 60 are duplicated and also dynamically change the desired destination QAM carrier and sub-channels.
  • Touch panel device (not shown) may be included as part of PC 100 shown in FIG. 1 and FIG. 2.
  • the touch panel device may also be separately connected to a content distribution system (e.g., system 10 in FIG. 1 or system 15 in FIG. 2) through a wired or wireless communication interface.
  • the touch panel device may also be a stand-alone device (e.g., a tablet or touch display monitor).
  • the touch panel device may further include an input circuit for receiving commands and a controller for processing the commands as well as display signals. That is the touch panel device may be used in addition to or instead of a conventional remote control device.
  • a satellite signal is converted to video output over a Quadrature Amplitude Modulation (QAM) carrier signal.
  • the tuner controller receives satellite signal containing video streams and program information.
  • DirecTV'sTM current implementation COM 1000
  • the system will tune to a particular channel number on command, convert the signal to an internet protocol encapsulated stream sent to a modulator.
  • the modulator device then sends the video stream out over a QAM carrier signal.
  • the management interface can display current tuning information, including channel name, and bitrate. Program information for channels can be read or aggregated into a guide.
  • the present invention includes a novel automatic tuning system for a designated group of tuners and video streams sent over QAM carrier channels.
  • the control mechanism scans all available program information received on the input signal feed.
  • the system searches, for example, for all sports programming available over an upcoming period of time.
  • the search identifies keywords:
  • a scheduling mechanism creates a tuning schedule for designated tuners.
  • the controller changes the input channel for the tuner to the designated live sports program.
  • the video stream output to and from the QAM modulator has no change in settings. That is, the user does not have to manually change and route which IP streams to QAM carriers, which was a requirement of a conventional system.
  • the video program changes through the initial tuner changing.
  • the IP video stream routing between the COM and the QAM modulator does not change, and the mapping of the stream to a QAM carrier channel inside the QAM does not change either.
  • the scheduler can have configurable settings when sorting programs. Priority rankings can be determined for multiple programs available at a time. Previously mentioned keywords in the program information can affect rankings. The user can specify and rank specific keywords for top priority, particularly team names and leagues.
  • the number of tuners and QAM carriers controlled may be one or more. In the event of multiple available programs, the top ranked is assigned to the first available channel. Programs are assigned to tuners until no more tuners or programs are available.
  • scheduling can be affected real time by the programs currently running. If the scheduler detects that a sports program runs beyond its time slot, tuning away may be delayed. It could detect that the stream is still present, or that the bitrate or another conditional variable, which determines the sports program is still playing. This prevents tuning away from a live match in the event of an overtime.
  • Fig. 3 is an exemplary screen shot of a smart tuning settings screen shot used to create a program guide including a user configurable virtual sports channel in accordance with the principles of the present invention.
  • a guide may be generated displaying the scheduler's current setting. Any time the scheduling is altered, the guide is re-generated.
  • Fig. 4 is a flowchart of an exemplary embodiment of the generation of a user configurable custom channel in accordance with the principles of the present invention.
  • a tuner receives a satellite signal.
  • the satellite signal includes contains video streams (which also include audio) and program information.
  • the tuner (controller, tuner controller) scans (inspects or otherwise reviews) the program information in order to identify programming of a particular type specified by a user during a particular period of time.
  • the tuner schedules tuning of the identified programming of the particular type identified and selected by the user.
  • a user configurable custom channel is generated based on the scheduled tuned identified programming of the particular type identified and selected by the user.
  • the tuner converts the received satellite signal to an internet protocol encapsulated video stream, which is sent (forwarded) to a QAM modulator.
  • the modulator transmits the internet protocol encapsulated video stream out over a QAM carrier signal.
  • Fig. 5 is a flowchart of an exemplary embodiment of the operation of a user interface to identify and select a particular (specific) program type for use in generating the user configurable custom channel in accordance with the principles of the present invention.
  • the tuner receives a request from a user to generate a user configurable custom channel.
  • a screen is rendered with active tuners and program types.
  • the tuner accepts (receives) the user's selection of program type.
  • the tuner also accepts input from the user specifying a priority among the programming of the specific (particular) type identified by and selected by the user.
  • tuners of a multi-tuner device are assigned in priority order.
  • Special purpose processors may include application specific integrated circuits (ASICs), reduced instruction set computers (RISCs) and/or field programmable gate arrays (FPGAs).
  • ASICs application specific integrated circuits
  • RISCs reduced instruction set computers
  • FPGAs field programmable gate arrays
  • the present invention is implemented as a combination of hardware and software.
  • the software is preferably implemented as an application program tangibly embodied on a program storage device. The application program may be uploaded to, and executed by, a machine comprising any suitable architecture.
  • the machine is implemented on a computer platform having hardware such as one or more central processing units (CPU), a random access memory (RAM), and input/output (I/O) interface(s).
  • the computer platform also includes an operating system and microinstruction code.
  • the various processes and functions described herein may either be part of the microinstruction code or part of the application program (or a combination thereof), which is executed via the operating system.
  • various other peripheral devices may be connected to the computer platform such as an additional data storage device and a printing device.
  • the elements shown in the figures may be implemented in various forms of hardware, software or combinations thereof. Preferably, these elements are implemented in a combination of hardware and software on one or more appropriately programmed general-purpose devices, which may include a processor, memory and input/output interfaces.
  • general-purpose devices which may include a processor, memory and input/output interfaces.
  • the phrase "coupled" is defined to mean directly connected to or indirectly connected with through one or more intermediate components. Such intermediate components may include both hardware and software based components.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé et un appareil de génération d'un canal personnalisé configurable par l'utilisateur. Le procédé consiste à : recevoir un signal satellite contenant des flux vidéo et des informations de programme ; scanner les informations de programme pour identifier une programmation d'un type particulier durant une période de temps ; programmer l'adaptation de la programmation du type particulier ; et générer le canal personnalisé configurable par l'utilisateur des programmes adaptés.
PCT/US2015/035725 2014-06-17 2015-06-15 Adaptation de canal intelligent pour système de tête de réseau WO2015195500A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462013055P 2014-06-17 2014-06-17
US62/013,055 2014-06-17

Publications (1)

Publication Number Publication Date
WO2015195500A1 true WO2015195500A1 (fr) 2015-12-23

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PCT/US2015/035725 WO2015195500A1 (fr) 2014-06-17 2015-06-15 Adaptation de canal intelligent pour système de tête de réseau

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2018048787A1 (fr) * 2016-09-08 2018-03-15 Thomson Licensing Procédé et appareil destinés à la distribution de contenu multimédia
CN110868608A (zh) * 2019-11-28 2020-03-06 国家广播电视总局广播电视科学研究院 一种直播业务调度方法、装置和存储介质

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WO2013049089A1 (fr) * 2011-09-27 2013-04-04 Thomson Licensing Interfaces utilisateurs pour des systèmes de distribution de contenu
WO2014014982A1 (fr) * 2012-07-19 2014-01-23 Thomson Licensing Procédé et appareil pour une distribution de canal de modulateur qam ayant une pluralité de modes

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US20100251304A1 (en) * 2009-03-30 2010-09-30 Donoghue Patrick J Personal media channel apparatus and methods
US20100333142A1 (en) * 2009-06-29 2010-12-30 Verizon Patent And Licensing Inc. Method and apparatus for creating a personalized programming guide
WO2013049089A1 (fr) * 2011-09-27 2013-04-04 Thomson Licensing Interfaces utilisateurs pour des systèmes de distribution de contenu
WO2014014982A1 (fr) * 2012-07-19 2014-01-23 Thomson Licensing Procédé et appareil pour une distribution de canal de modulateur qam ayant une pluralité de modes

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ANONYMOUS: "DIRECTV COM1000 Integrator's Manual Software Version ST02.08.07", 20 November 2012 (2012-11-20), XP055205927, Retrieved from the Internet <URL:http://www.technicolor.com/sites/default/files/medialib/document/bloc_download/sshp_ecommerce/com1000_integrators_manual_v2.72.pdf> [retrieved on 20150803] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018048787A1 (fr) * 2016-09-08 2018-03-15 Thomson Licensing Procédé et appareil destinés à la distribution de contenu multimédia
CN109804636A (zh) * 2016-09-08 2019-05-24 交互数字Ce专利控股公司 用于多媒体内容分发的方法和装置
EP3840392A1 (fr) * 2016-09-08 2021-06-23 InterDigital CE Patent Holdings Procédé et appareil destinés à la distribution de contenu multimédia
CN110868608A (zh) * 2019-11-28 2020-03-06 国家广播电视总局广播电视科学研究院 一种直播业务调度方法、装置和存储介质

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