Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04H—BROADCAST COMMUNICATION
  • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
  • H04H20/42—Arrangements for resource management
  • H04H20/423—Transmitter side
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04H—BROADCAST COMMUNICATION
  • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
  • H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
  • H04H20/24—Arrangements for distribution of identical information via broadcast system and non-broadcast system
• • 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
  • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
• • 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
• • 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 
  • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
  • H04N21/643—Communication protocols
  • H04N21/64322—IP

Definitions

• the field of the invention relates to methods for selecting a media content broadcast path between a content provider and a population of end users each having a terminal.
• the field of the invention is directed to methods for defining the best path according to given constraints without causing loss of information, minimizing the cost of broadcasting, and offering the best quality to the end user.
• the invention relates to the live broadcast of "live" content or streaming of "video" type files, broadcast by channels and likely to overload a CDN type terrestrial data network when many user requests are concomitant .
• An appropriate means of access can currently be a combined offer between a bouquet available via satellite and a bouquet available via a terrestrial network via the internet, the two bouquets forming a single catalog of a provider.
• the catalog of accessible channels may vary from one household to another.
• This problem is not encountered in satellite content delivery. Indeed, the same content broadcast by a given channel transmitted by a satellite is received as many times as desired by a set of users without cluttering the band of a neighbor.
• the cost of broadcasting is unique and does not depend on the number of users but only the allocated band transiting through a satellite transponder. The cost is therefore fixed that the content is viewed by a single user or by a large number of users.
• a problem of satellite content broadcasting is that it is sized for a given request at a given moment.
• limited size and the payload of the satellite can only take into account a limited number of channels.
• the number of channels that can be taken into account depends on the number of transponders, the band of each transponder and the coding applied to the transmitted medium which includes a higher or lower rate.
• the cost of satellite broadcasting is justified only if a channel is seen by a large number of users; otherwise, terrestrial "unicast" broadcasting is less expensive.
• the invention solves the aforementioned drawbacks.
• An object of the invention comprises a method for optimizing a broadcast channel allocation of at least a first multimedia data stream delivered by at least a first content source.
• a steering component controls the allocation of a broadcast channel among at least:
• a first broadcast channel providing a first data stream using a broadcast satellite system with at least one first user reception system, said at least first user receiving system comprising first means for transmitting the first stream of data to at least a first user terminal;
• a second broadcast channel delivering the first data stream by means of a terrestrial data network to at least one second user reception system, said at least second user receiving system comprising second means for transmitting the first data stream at least the first user terminal,
• said method comprising:
• ⁇ determining a parameter comprising an allocation calculating a value of audience of at least a number of first data streams supplied to a first set of terminals with at least one broadcast channel, said calculation being performed by means of an audience collection component;
• An advantage of the invention is to lighten the bandwidth occupied on the terrestrial network by the use of a satellite bandwidth according to the collected and measured audience of one or more media broadcast (s) or broadcast .
• the audience collecting component collects audience data from a second set of terminals of the first set of terminals by means of a return link between at least the first user reception system and a terrestrial base station transiting through at least one satellite.
• the audience collection component comprises a data server connected to the terrestrial data network and collects audience data from a third set of terminals of the first set of terminals by means of a terrestrial return link.
• each terminal of the second set and the third set of terminals receives the first stream by the first transmission means or the second transmission means.
• the audience collection component centralizes the audience data of the second and third sets of terminals.
• control component comprises a first configuration making it possible to define at least one event on a given date and having a predefined duration during which the allocation parameter is modified so as to select a predefined broadcast channel towards the least the first user terminal for the transmission of a data stream.
• control component comprises a second configuration for defining a set of time slots of the calendar during which the allocation parameter is modified so as to select a predefined broadcast channel to at least the first user terminal for the transmission of a data stream.
• At least one given terminal generates a selection setpoint of a single broadcast channel when a first stream is accessible by the two transmission channels, said setpoint being transmitted to the first transmission means or the second transmission channels.
• transmission means so as to complete the transmission of the first stream to said at least one terminal.
• terminal transmission in the satellite case impacts the "local" link between the antenna and the terminal.
• the flow is stopped upstream for example in the case of a CDN network.
• the transmission means receiving a selection setpoint, transmit said selection setpoint to the control component so as to make a selection of at least one broadcast channel according to the selection setpoint to ensure a selection. single broadcast of at least the first data stream to at least the first user terminal.
• the first data source comprises the control component.
• a first data source and a second data source each deliver the first multimedia data stream to the first broadcast channel and respectively to the second broadcast channel, said channel selection being operated by a broadcast component. control connected to said two data sources.
• a configuration of the width of the bandwidth of the first broadcast channel is determined according to the allocation parameter.
• the satellite broadcasting system comprises at least one ground station comprising at least one signal-transmitting antenna towards the satellite, the control component allocating a set of data streams to a plurality of calculators. encoding according to at least one allocation parameter, each encoding calculator:
• ⁇ encoding issued stream selected by the steering component in IP packets to a multiplexer; ⁇ allocating a quality of compression to each data stream delivered according to at least one allocation parameter, said ground station comprising a multiplexer delivering a set of data to be modulated and transmitted by the antenna to the satellite.
• the satellite comprises a second multiplexer and a plurality of transponders each forming a transmission channel guaranteeing a given bandwidth, each data stream selected by the control component being automatically distributed in at least one transponder as a function of the allocation parameter.
• control component further determines automatically the quality of compression of the first stream as a function of the allocation parameter.
• the first user reception system comprises:
• the first user reception system further comprises:
• ⁇ a transmitting antenna a signal of a third frequency band to a satellite.
• the terrestrial data network includes a CDN network for broadcasting multimedia content
• the second user receiving system comprises a modem using an ADSL or fiber connected to the data network;
• the second transmission means comprises a wireless interface.
• the multimedia content includes a video stream and / or audio and / or data
• the multimedia content is delivered in a continuous stream ensuring viewing on continuously the user terminal
• the frames carrying the multimedia content in the first and / or second broadcast channel are IP frames.
• the satellite signal can also be provided by a Transport Stream DVB protocol and not an IP stream, with a conversion by the DEMOD.
• the user terminal is:
• Another object of the invention relates to a user terminal for viewing multimedia content, characterized in that it comprises:
• ⁇ a first interface for receiving data from said first transmitting means outputting a first data stream before passing through a satellite broadcast and a set of terminals;
• a second interface for receiving data of second transmission means delivering the first stream of data transiting over a terrestrial network, upon request from the terminal, said terminal comprising a computer:
• FIG. 1 an overview of the different video content broadcast paths routed to a user terminal
• FIG. 3 is a flow diagram showing the allocation of video streams from a transmitter to a satellite for distribution of the said flows.
• FIG. 1 represents a system making it possible to implement the method of the invention.
• a content provider denoted PROV, makes it possible to broadcast one or more streams according to at least two diffusion channels CH 1 , CH 2 .
• the PROV content provider comprises a control component, denoted CP, allowing to allow or not the broadcast of a video stream in any one or more broadcast channels.
• a first broadcast channel comprises the links L1, L2, L3. It corresponds to a SAT satellite content broadcast.
• a second broadcast channel comprises the links L20, L21, L22. It corresponds to a distribution of contents via an internet network 2.
• the CP control component may control the streaming of streams from different PROV content providers that may for example be located in different geographic locations.
• control component CP can transmit a setpoint through the CDN network authorizing or inhibiting the broadcast a video stream by the server (s) concerned.
• the streams issued by the PROV content provider or by a delegated server in the second broadcast channels via the internet network 2 are encapsulated in IP frames.
• the frames are sent continuously to provide a streaming service.
• Each content must be replicated in a dedicated stream for each user who requests it (broadcast "unicast") from the server closest to the CDN network.
• a user wishes to access and view a multimedia stream corresponding for example to a video stream of a given channel.
• the terminal 1 that it uses includes an interface allowing it to select the desired channel for example from an integrated interface or a remote control.
• the terminal 1 can be a smartphone, a tablet, a computer or a television.
• the user terminal 1 may be connected to one or more user receiving systems.
• the terminal comprises a function for detecting the number of available streams, an interface for selecting the one coming from the stream according to the available broadcast channel.
• the detection of the stream is carried out according to an alternative embodiment by an analysis of the signaling frames, for example IP frames.
• the terminal does not generate an interface window for selecting the one coming from the stream.
• the terminal function detects flows from different sources, an interface can be generated to question the user.
• a choice of available streams by default is predefined, for example the better quality stream which is usually the one coming from the satellite.
• FIG. 1 shows a first user reception system ⁇ ST2, ANT2, DEMOD, 5 ⁇ comprising a satellite antenna ANT2 associated with a local reception device making it possible to demodulate the signal received by the antenna ANT2.
• a demodulator is shown in FIG. 1 by the device DEMOD connected to the receiving antenna ANT2 via a link L4.
• the first user reception system comprises a local access equipment 5 connected to the local reception device ANT2, DEMOD via a wired or wireless L5 access channel.
• the local access equipment 5 may be, for example, a local wireless router.
• the wireless router 5 is, for example, configured to transmit locally in an L6 channel the multimedia stream to one or more terminal (aux).
• a return link L6 ', L5', L4 ', L3', L2 ' may be provided.
• the return link makes it possible, for example, to offer interactivity during the viewing of a stream such as a vote or a choice of a user to take into account.
• This return link can advantageously be used according to the method of the invention for collecting data for viewing a user.
• the satellite comprises a return channel for transmitting the data of a plurality of users including the indicator of the stream viewed.
• the audience data can be sent to an audience collection component via the internet network 2.
• the internet network 2 To obtain reliable audience values, it is not necessary to receive data from all users, but only from a subset. Second user reception system
• a second user reception system 4 is connected to the Internet network by a link L22 which may be fiber or a coaxial or a copper pair.
• the second user reception system 4 comprises a local reception device, such as a modem or an ADSL box, denoted 4 in FIG.
• the local reception device 4 comprises transmission means WL for broadcasting the multimedia stream by wireless channel L23 or by a wired channel.
• a user has a terminal that is:
• ⁇ be associated with a first satellite reception system
• ⁇ is associated with a second terrestrial reception system
• ⁇ is associated with two reception systems, one of which is a satellite reception system and the other is a terrestrial reception system, as shown in the case of figure 1.
• the user via his terminal 1 is also able to select data and generate return orders such as votes, notices or specific actions during the diffusion of the stream.
• the network is already configured to allow data exchange in the bidirectional channel.
• the method of the invention therefore comprises an audience collection according to the user-selected stream that is sent from the second user reception system 4 to an audience collection component AUD2 via the internet network 2.
• the invention applies to users having terminals connected to reception systems, one of them by satellite and the other by terrestrial means.
• the invention also applies to users having a terminal connected to one of the two reception systems, that is to say receiving only one access either satellite or terrestrial.
• the method will not optimize the reception band by allocating channels of one channel on another channel (for example, by allocating channels the terrestrial band on the satellite band).
• the method of the invention makes it possible to optimize the choice of channels on the satellite when the terminal will be connected to a satellite channel via a suitable reception system.
• each user reception system 4 or ⁇ ST2, ANT2, DEMOD, 5 ⁇ is configured to receive IP frames encapsulating video frames.
• the user receiving systems are configured to receive unicast frames, i.e., a point-to-point network connection, or multicast frames, i.e., a multipoint connection.
• the receiving system may be configured to parse the received IP frames to:
• ⁇ change the multicast IP header to an unicast IP header; for example when different streams are routed to different terminals 1 by a user reception system or;
• ⁇ directly route a multicast IP stream to one or more terminals or; ⁇ decode a multimedia audio or video stream in a given format and re-encode it in another format appropriate to the terminal and possibly re-encode it in an IP frame or;
• ⁇ encrypt a stream or decrypt and re-encrypt a stream using two different encryption protocols; for example when decrypting a CAS stream and encrypting it in DRM.
• the first user reception system ⁇ ST2, ANT2, DEMOD, 5 ⁇ may include a functionality to indicate that a stream is no longer available in satellite broadcasting via the first broadcast channel CHi.
• a setpoint can then be generated so that the terminal requests access to a unicast stream to a server of the internet network of the second broadcast channel CH2.
• the stream is then sent on demand via the Internet 2.
• This case may occur when a stream is poorly viewed, the audience drops, and the pilot component suspends the transmission of the stream by satellite.
• a setpoint can be issued with possibly a link to the server or servers with this stream to automatically trigger a request from the terminal to the second broadcast network.
• the viewing of a suspended stream by the first broadcast channel is automatically supported by the second broadcast channel CH2.
• a setpoint is generated by the control component directly to a server of the CDN network which supports the transmission of the unicast stream to the second reception system 4 so that it is routed to a terminal 1 given.
• the source changes but this is transparent for the terminal and therefore for the user.
• a first broadcast channel CH1 comprises a satellite broadcast channel in which a set of data streams are transmitted by an antenna ANT1 to the satellite SAT.
• the link is a multicast link in which at least one PROV content provider broadcasts content to a plurality of user receiving systems. All flows are broadcast. It is the user reception system that sorts and selects the desired flow according to a user command which could be, for example, activated from its terminal.
• the content provider PROV may administer and manage a plurality of multimedia streams to the satellite SAT by means of a multiplexer MUX1 receiving the data by different channels L1 from the content provider.
• the data streams are transmitted by the transmitting antenna ANT1 by taking a rising channel L2 to the satellite SAT.
• the satellite SAT comprises a plurality of transponders capable of processing the received signals by amplifying them, filtering, transposing frequencies and re-transmitting the streams.
• the satellite SAT broadcasts by L3 downlink the multimedia streams to a plurality of user reception systems ANT2, DEMOD, satellite capable of demodulating the signals and processing the transmitted data.
• a second broadcast channel CH2 comprises a path that is calculated within a terrestrial network comprising a plurality of devices, such as the internet, between a server hosting the content and a user reception system.
• the CH2 broadcast channel is a point-to-point unicast link between a server and a user receiving system.
• a plurality of broadcast channels CH2 makes it possible to deliver a plurality of streams to a plurality of user reception systems.
• a CDN network is used for broadcasting the video streams in the terrestrial network to optimize the load distribution.
• FIG. 1 represents, in this example, a server 20 making it possible to make accessible, via an L20 link, the contents of the content provider PROV to a set of users via the Internet network 2.
• the network used is a CDN network.
• a set of servers from the CDN network can then be deployed to relay the content to be broadcast or host it.
• Each server comprising the content to be broadcast includes a memory for storing and broadcasting the content.
• a single reception equipment can be used to perform the reception functions of the first and second user reception systems.
• the method of the invention includes a step for collecting audience data. At a given moment, an audience is measured on a panel of users viewing a given content corresponding to a data stream.
• the audience data may comprise different information such as the last changes of channels operated by a user, the watch time of a channel, the data of the previous channels viewed.
• a setpoint is sent to at least one receiving system 4 and / or DEMOD.
• the setpoint is sent to each reception system 4, DEMOD having a data link with the terminal 1.
• the setpoint comprises information corresponding to the stream selected by the user.
• the instruction may also include information on the reception system chosen by default.
• the user reception systems 4, ⁇ DEMOD, 5 ⁇ can therefore be audience collection equipment, and they can collect the data of all the terminals that are connected to said user reception systems 4, ⁇ DEMOD, 5 ⁇ .
• the receiving systems can route and collect data with a single terminal or a plurality of terminals.
• the user reception systems can perform the collection function hearing.
• Audience data can include user profile data such as age, interests, and more.
• only a set of terminals are counted in the audience measurement forming a panel of a larger set of terminals. According to another embodiment, all the terminals are accounted for.
• At least one audience collection component AUD1, AUD2 collects a set of audience data from the network.
• the audience data makes it possible to establish a congestion state of the network according to a user request.
• the audience collection components communicate to the content provider (s) PROV the audience data, the method makes it possible to establish a selection of the preferred broadcast channel according to a cost, a quality. content to guarantee, the audience, their distribution, time slots or events given, etc.
• the method of the invention comprises a step of selection for distributing the network load or switching the broadcast of the stream in a broadcast channel preferentially to another.
• FIG. 1 represents a first audi collector component AUD1 connected, in this embodiment, to the antenna ANT1 intended to transmit and receive the data streams to the satellite SAT.
• Audience collector component AUD1 comprises means, such as a memory, for storing all the audience information of each terminal 1 having sent out audience information from the user reception system, for example ANT2, DEMOD, 5.
• the audience collector component AUD1 is connected to the antenna ANT2, for example, by means of an L7 wireless connection or a wired connection according to the implementation of the invention.
• each user reception system ⁇ ANT2, DEMOD ⁇ receiving data streams via the downlink L3 from the satellite SAT re-transmits, by means of a back link L3 ', L2' the audience data collected according to the choice of the user.
• These audience data are received via the return link by the antenna ANT1 and are re-transmitted to the audience collector component AUD1.
• the return link can be provided by the terrestrial link when the user is connected to the Internet network via the link L22 for example, even if the multimedia data stream is received by the satellite.
• the audience collection can thus be performed independently of the receiving system receiving the stream.
• the audience collection or the transmission of audience data can be carried out either via the internet link L22 or via a satellite return link via links L4 ', L3' and L2 '.
• the user reception system ⁇ DEMOD, ANT2 ⁇ includes a device for modulating a signal and amplify it to be transmitted to the satellite.
• a signal may also be modulated or coded by a spread spectrum method in a transmission band.
• FIG. 1 represents a second audi collector component AUD2 connected, in this embodiment, to the internet network 2.
• the AUD2 audience collector component is connected as long as it is accessible by the network .
• Audience collector component AUD2 advantageously comprises means, such as a memory, for storing all the audience information according to the stream viewed by each terminal 1.
• each reception system 4 receiving data streams through the Internet network 2 retransmits in the same network the collected audience data.
• each receiving system is configured to identify each terminal and assign it a stream that has been selected by the user.
• each user reception system is configured to transmit audience information according to the stream viewed from each terminal.
• a first portion of the audience information is transmitted to a first audience component AUD1 and a second portion of the audience information is transmitted to a second audience collector component AUD2.
• a centralizing component of the audience data is configured to collect the audience data of the two audience collection components AUD1, AUD2.
• the centralizing component of the audience data is one of the two audience components AUD1 or AUD2.
• a single AUD Audience Collector component performs both audience data collection functions of the two CHi and CH2 broadcast channels performed by the two audience collector components AUD1 and AUD2.
• the audience data can be collected from a sample of user terminals 1, as previously specified, which is representative of a general audience of the streams viewed.
• the audience data advantageously comprises the identification of the stream that is accessed by each terminal of the sample.
• the audience data comprises the access data of each terminal, that is data from the source of the data stream that is accessed by the terminal 1.
• a terminal 1 is able to trace the information of the source of the stream and the information of the availability of the stream on different user reception system.
• the origin information of the stream can be identified from signaling information of certain frames decoded by the terminal.
• the terminal 1 generates an indication that the data flow corresponding to a given string originates from the reception system 4. It can also indicate the presence of the user reception system ⁇ 5, DEMOD, ANT2 ⁇ and possibly the availability of the stream by said user reception system 5, DEMOD, ANT2.
• the user reception systems 4 and ⁇ 5, DEMOD, ANT2 ⁇ can, themselves, generate the audience information when they select a stream to be transmitted to the terminal 1.
• a user selects for example a string.
• a setpoint is generated and sent to the user reception system 4 and ⁇ 5, DEMOD, ANT2 ⁇ which identifies the desired stream and which filters, decodes and transmits to the terminal 1 the desired multimedia stream.
• each user reception system 4 and / or ⁇ 5, DEMOD, ANT2 ⁇ communicates to an audience collection component AUD1 or AUD2, or to a plurality of audience collection components, the flow information transmitted. to terminals 1.
• FIGS. 2A and 2B illustrate an embodiment of the method of the invention when a decision to switch from the second broadcast channel CH2 to the first broadcast channel CH1 is made as a function of an exceeded audience threshold.
• FIG. 2A illustrates an exemplary case in which is represented a content source PROV delivering a first stream F1 to a user reception system SRU (NET) through the second broadcast channel CH2, which in this example is a broadcast channel. broadcast established within the Internet network 2.
• the user reception system SRU (NET) is dedicated to a connection via the Internet, it corresponds to the case of the user reception system 4 of Figure 1. It can include, for example, an ADSL box.
• the data links represent the audience data that is retransmitted to the audience collection components AUD1, AUD2.
• a single AUD audience collector component could have been represented.
• the audience collector component AUD can be configured in the network so as to be accessible from the Internet and from the return channel of the satellite SAT. Some arrows are shown from other sets of user terminals. Audience data from other SRU user reception systems is indicated as input to audience collector components AUD1 and AUD2.
• Data links 31 indicate that a decision of the audience collection components AUD1 and AUD2 has been generated to a control component CP to establish a new broadcast strategy of the first stream F1 after analyzing the audience data.
• the audience collection components AUD1 and AUD2 transmit the audience data to the content provider PROV, which in turn determines the broadcast strategy to be adopted based on the results of the two audience polls performed.
• the content provider PROV determines the broadcast strategy to be adopted based on the results of the two audience polls performed.
• a decision to change the broadcast channel CH1, CH2 of the first stream of F1 data can be engaged, for example, by the driving component.
• the control component CP can activate the broadcasting of a stream or inhibit it or change the encoding.
• the control component can act on a set of users having a second user reception system connected to the Internet network. For example, according to one embodiment, when the audience data of a stream are below a given threshold, the control component CP is configured to select a first set of users having only one reception system user connected to the internet to maintain the broadcast of the stream by the second channel CH2 broadcast. In addition, the control component CP can select a second set of users no longer receiving the stream by the second broadcast channel CH2 but only by the first satellite broadcast channel CH1.
• the broadcast channel change decision making CH1, CH2 can be generated automatically when the audience exceeds a first predefined threshold or when it is below a second predefined threshold.
• FIG. 2B illustrates this change of configurations in which the first broadcast channel CHi passing through the satellite SAT is chosen to broadcast the first data stream F1.
• the reception systems SRU then take over the reception of the first data stream F1 and the first data stream F1 is no longer transmitted through the Internet network 2, except for users who do not have access. to the satellite network.
• the terminal 1 is then able to automatically switch the reading of the expected stream of the broadcast channel CH2 on the broadcast channel
• the switching of the broadcast channel CH1, CH2 is programmed according to a time slot and / or a day of the week for example by a control component CP.
• the switching of the broadcast channel can also be programmed according to one-off events such as the broadcast of a football match which can be expected to reach a certain threshold.
• a given stream at a given instant may be preferentially broadcast by a satellite broadcast channel so as to reduce the bandwidth of the internet network and the many multimedia streams passing through the network to each terminal.
• Terrestrial broadcasting will only continue for users who do not have access to the satellite.
• the user receiving systems that support relaying the routing of a given stream can be configured so that the switching occurs without loss of information.
• the control component CP can be configured so that the stream is transmitted temporarily on the two broadcast channels CH1, CH2 before suspending one of the two transmissions after switching.
• FIG. 3 represents an embodiment in which the different interfaces between the content provider PROV and the transmitting antenna ANT1 towards the satellite SAT are represented.
• a multiplexer MUX1 makes it possible to multiplex different multimedia or other flows FIP1, FIP2, FIP3 in a rising signal transmitted by the antenna ANT1 to the satellite SAT.
• the multiplexer MUX1 is configured to optimize the bandwidth of the transmitted signal with a plurality of streams that can come from different content providers PROV1, PROV2, etc.
• encoders ENC1, ENC2, ENC3 are configured to encode for example video streams Fv1, Fv2, Fv3 in IP frames, denoted FIP1, FIP2, FIP3.
• the links between the content providers and the encoders are designated by the link L1 in FIG.
• a control component CP makes it possible to take into consideration the audience data collected by the audience collection components AU1, AUD2.
• the control component CP may be associated with a provider of content PROV or may be deported at the transmitter ANT2 to supervise the streams transmitted in the upstream signals to the satellite.
• a control system comprises several CP control components including:
• a first driving component CP1 oversees the allocation of media stream in the RF signal to the satellite SAT;
• a second control component CP2 supervises the generation of point-point streams over the internet network 2.
• a CP control component generates instructions to the encoders so as to prioritize certain transmitted streams, inhibit or encode them with a predefined compression ratio.
• the Instructions are generated directly from the collected audience data.
• the control component CP via the interface L7, can generate a compression index that makes it possible to compress more or less a multimedia stream. If a stream has a small audience, a strong compression can be applied to gain bandwidth on the signal transmitted to the satellite SAT to emit another stream, or improve the quality of a highly requested stream.
• the control component CP is able to combine streams of different content providers in different encoders so as to optimize the transmission band of the signal transmitted to the satellite SAT.
• CP control component we find in particular:
• ⁇ determining a route or path of the second broadcast channel for broadcasting a media stream to a user receiving system
• the component CP may also determine:
• This option allows users who do not have a satellite link to continue to benefit from a global offer of available streams.
• An advantage of this solution is to reduce the occupied bandwidth of the internet network 2 by limiting the broadcast of a stream on the second broadcast channel CH2 only to a certain number of users who do not have a user reception system receiving the flow of a satellite.

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• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Multimedia (AREA)
• Business, Economics & Management (AREA)
• General Business, Economics & Management (AREA)
• Physics & Mathematics (AREA)
• Astronomy & Astrophysics (AREA)
• General Physics & Mathematics (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
• Radio Relay Systems (AREA)

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• 2015
  • 2015-05-27 FR FR1554762A patent/FR3036905B1/fr active Active
• 2016
  • 2016-05-25 US US15/576,440 patent/US20190007150A1/en not_active Abandoned
  • 2016-05-25 WO PCT/FR2016/051231 patent/WO2016189249A1/fr active Application Filing
  • 2016-05-25 EP EP16730455.9A patent/EP3304777A1/de not_active Ceased

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