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]
  • H04N21/40—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
  • H04N21/472—End-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, for manipulating displayed content
• • 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
  • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
  • H04N21/23608—Remultiplexing multiplex streams, e.g. involving 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
  • H04N21/43—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

Definitions

• the present invention relates to the provision of on-demand services, such as video-on-demand, in collective institutions such as for example hotels or hospitals. These collective institutions are characterized by a finite number of receivers capable of receiving services.
• the in-house television broadcasting services offered by these institutions are essentially of two types.
• the services of the first category correspond to the broadcast of programs on the entire set of receivers; this is typically the case for television or radio channels received over the air, satellite or cable, or even very high-speed access (web-radios for example), and transported via the building's local network to the various televisions. thus sharing the same reception infrastructure. All users receive the same flow of information simultaneously.
• the data flows (audiovisual or other) are here purely monodirectional since the users passively consume what is proposed to them.
• Each program is broadcast once, regardless of the number of receivers or simultaneous users; bandwidth requirements on the network are therefore proportional to the number of channels or programs.
• a station head In the framework of a standard coaxial type infrastructure network, the television channels are received by a station head and rebroadcast as such on the local network or modulated on different frequencies and / or in a different type of modulation.
• a station head is understood to mean a central network system allowing: the recovery of telecommunication signals (television channels, internet, video on demand or "VOD" service, etc.),
• the services of the second category are characterized by an interactive mode that makes it possible to respond to the particular requests of each user (or receiver).
• a typical example is Video on Demand ("VOD"), often implemented by pay-per-view On demand movies from a catalog regularly updated by the institution.
• VOD Video on Demand
• a typical example is Video on Demand ("VOD"), often implemented by pay-per-view On demand movies from a catalog regularly updated by the institution.
• VOD Video on Demand
• the upstream and downstream data flows can be conveyed by the same network or not.
• the bandwidth requirements on the network are proportional to the number of simultaneous users.
• traditional interactive services are added to broadcast services, their deployment requires a capacitive network (throughput).
• Broadcast services are historically built on coaxial networks transmitting all services received by an antennal system to all receivers.
• Such an architecture can serve an unlimited number of receivers, the maximum number of broadcast services is limited by the bandwidth available on the network (typically 850 MHz) and that used by each service.
• the transition from analogue to digital world has multiplied by at least a factor 4 the number of services that can be offered by combining several services in a multiplex occupying a single frequency band.
• the television broadcasts "broadcast” linear television services received by a high frequency tuner (in digital or analog television), but may also display an audio or video stream from a broadband network , using streaming standards (or streaming).
• streaming standards or streaming.
• RTP for "Real-time Transport Protocol”
• RTSP for "Real Time Streaming Protocol”
• Such a stream is generally driven by an interactive application, which can be signaled during the broadcast service broadcast, as is the case with the HbbTV standard.
• in-room televisions for the broadcast of television broadcasting services can lead to quality of service issues.
• more and more television programs are using new hybrid broadcasting techniques to offer interactive applications offering services related to these programs.
• these applications include video streaming, such as delayed catch-up television (or "catch-up”). TV "), video on demand, etc.
• a standard such as HbbTV also allows the broadcasting of multimedia content directly in the transmission stream in the form of data carousels which then carry the files that make up interactive application.
• the present invention improves the situation. It proposes for this purpose a method implemented by a computer entity to provide at least on-demand services, differentiated, to a plurality of respective terminals, with communication means in the broadcast mode of said services.
• the services on demand can be of type:
• VOD Video on demand
• informative service for example a homepage of an online portal of a collective establishment, or an information page for example of a service catalog (weather, room number, minibar note, etc., or other ), or simply a television data supply service, - or others.
• the terminals can be: connected television sets, simple television sets connected to a modem or a Set-Top-Box type terminal, or even Set-Top-Box terminals themselves, or computers ( fixed or portable) comprising means for connection to a local network and means for reading at least one common stream described below, etc.
• the communication in "broadcast mode" above relates in particular to a communication type "broadcast”.
• the above-mentioned computer entity can generate in particular an undifferentiated flow common to the terminals, this common stream comprising at least signaling tables of said services on demand, each signaling table being dedicated to a terminal and each terminal being configured to read the terminal. signaling table of the dedicated service on demand and ignore other signaling tables.
• the IT entity receives, from at least a portion of the terminals, on-demand service requests, by way of return between the terminals and the IT entity.
• the IT entity being connected to an on-demand service data source, it is thus possible to condition the delivery of said data in the common stream according to said requests.
• the term "return channel” means the possibility of bidirectional communication between each terminal and the above-mentioned computer entity.
• the requests are made by executing an application with a terminal.
• the aforementioned signaling tables can point to at least one interactive application declaration table including at least link data to a script of this application.
• a terminal may include means for storing a prerecorded script linked to this application, which prerecorded script includes at least link data to a script of this application.
• a terminal such as a television set may store only a single link, of the URL ("Uniform Resource Locator" or "Universal Resource Locator") type pointing to the page. welcome to this application.
• each request received preferably comprises a terminal identifier having generated the request, and the IT entity can then decide on this request for example as a function of access rights associated with this terminal, by conditioning the delivery in the stream common data requested in the request.
• an interactive application can be provided for displaying on a screen of the terminal information on one or more on-demand services available, and for parallel monitoring of the distribution of the on-demand service data in the common stream by communication with the entity. computer science.
• the common stream is generated in accordance with the DVB standard, and said signaling tables mentioned above can be program map tables (or "PMT"). More particularly, the stream may be at the DVB standard according to the particular HbbTV standard, in particular for the transmission in the common stream of interactive application tables corresponding to so-called "application information” tables (or “AIT” for " Application Information Table ").
• the interactive application can follow the CEA-2014 standard and in particular CE-HTML ("Consumer Electronics HTML") and derived standards (OIPF, HbbTV, etc.).
• the computer entity and the terminals can communicate via a coaxial infrastructure network, by data transmission by "DOCSIS" type modems.
• DOCSIS is a specific standard that defines the interface conditions communication and operation support for a data system using the cable television system. It allows the addition of high speed data transfer to an existing cable television system. It is used in particular to provide Internet access on coaxial infrastructures.
• requests from the terminals can be filtered in order to prevent access to remote services (for example by setting up a firewall).
• the computing entity can be arranged to filter applications in elementary streams, upstream of the common stream, according to at least the steps:
• the computing entity may be arranged to filter applications in elementary streams, upstream of the common stream, according to at least the steps:
• the IT entity can be further arranged to modify the signaling tables by adding an entry corresponding to a new interactive application declaration table and modifying original stream identifiers, so that any application associated with an elementary stream is considered by a terminal as one and the same application.
• the present invention proposes to use the broadcast network in particular to broadcast services on demand.
• it proposes to associate an interactive application with the content of broadcast on demand.
• This interactive application can be responsible for example to inform the user about the content viewed, and control the flow of the stream by communicating with the server (by the HTTP protocol for example).
• This application does not need a large data rate, and allows the use on a coaxial infrastructure network, for example by transmitting the data by simple DOCSIS modems.
• the present invention also aims at the computer entity as such (bearing the reference S in the figures discussed below) for the provision of differentiated on-demand services to a plurality of respective terminals, and connected to means of communication. communication in the broadcast mode of said services, the entity comprising:
• the invention also relates to a computer program comprising instructions for implementing the above method, when this program is executed by a processor.
• FIG. 5 for example, commented below, can represent a flowchart of the general algorithm of such a computer program, as an example.
• FIG. 1 illustrates an exemplary embodiment for broadcasting the streams, without specifying here the return path and the broadcasting of applications connected to the terminals (television sets in the example represented),
• FIG. 3 is a block diagram of implementation of the exemplary embodiment shown in FIG. 2;
• FIG. 4 illustrates an example of an arrangement of declaration tables in the stream delivered by the computer entity S of FIG. 3;
• FIG. 5 schematically illustrates the main steps of the method implemented by the computer entity S according to a general embodiment.
• a hotel establishment (or equivalent) has an internal digital television network based on a coaxial infrastructure, the digital television service being broadcast from a central server of the site (also called "head of station"). This server distributes to the rooms television services received by antennas or broadcast from a dedicated server (streaming video streaming server, for example). These television services may signal interactive applications, as will be discussed in more detail below.
• the facility is equipped with a return lane, from the room to the central server.
• This return channel can be based on the same coaxial network ("IP" for "Internet Protocol” on a coaxial cable, for example in a system communicating according to the DOCSIS standard, or by line-carrier), on a Wifi network, a cabling in twisted pair or any other infrastructure.
• IP coaxial network
• Wifi Wireless Fidelity
• the establishment is equipped with terminals consisting, in the example shown in TVs connected (directly or via STB boxes) capable of receiving interactive applications reported in the transmission stream.
• the facility is equipped with an on-demand multimedia content delivery system (eg video on demand or "VOD”) from the central server.
• VOD video on demand
• the aim is then to filter the connected applications associated with broadcast services broadcast on the local network and to control the video-on-demand program using a connected application indicated in the information tables associated with the digital content.
• broadcast specifically applied to DVB (for "Digital Video Broadcasting") and HbbTV (for "Hybrid broadcast broadband Tele Vision”).
• the connected application is a global application prerecorded in a terminal storage means. In this case, the application is independent of the stream (no prior signaling of the application in the stream).
• the system comprises an IT entity S which broadcasts streams from the terminals TV1, TV2,..., TVN via a COAX cable network (of the "coaxial" type for example) and by which the terminals are connected to the entity computer S.
• the computer entity S is connected to a reception unit 12 retrieving data streams relating to television services.
• These flows can come as an example: from a terrestrial antenna A-T, in the context of a reception of the television stream (TV) by hertzian way,
• an A-S satellite antenna as part of a television transmission (TV) reception by satellite transmission, and / or
• a satellite antenna A-C as part of a reception of the television stream (TV) by cable transmission.
• the reception unit 12 communicates the received TV streams to a multiplexer 13 of the computer unit S.
• the multiplexer 13 also receives a stream comprising data (in particular audio-video) of on-demand services coming for example from a On-demand video server S_VOD.
• the multiplexer 13 is connected to a source of multimedia contents 10 (broadcasting service presentation multimedia data, for example a video presentation film of the hotel, trailers of the services on demand, etc.).
• the multiplexer 13 is further connected to a signaling table generator 11.
• the content source 10 and the table generator 11 are represented in the computer entity S.
• the generator 11 enables: modify the signaling tables relating to the stream received by the multiplexer 13 (which is coming from the receiving entity 12), and adding signaling tables relating to on-demand services from the S_VOD server and / or multimedia contents from the content source 10.
• the multiplexer 13 generates at least one service data stream which it communicates to one or more modulator (s) 14 which broadcasts (s) this stream (according to different frequencies for example) on the COAX network destined for TV1, TV2, TVN terminals.
• this stream corresponds to the aforementioned "common stream", undifferentiated, for all terminals TV1, TV2, TVN.
• the modulator 14 injects the streams on the COAX network via an antenna coupler 15.
• a web server 105 is represented in the computer entity S. This web server 105 includes contents of interactive application. These contents are delivered by the server 105 on request of the terminals TV1, TV2, TVN (for example as "HTTP server").
• the contents are transmitted either by a return channel (through which the requests are conveyed) or by data carousels of the stream broadcast to the terminals.
• the web server 105 may also interpret on-demand service control requests from the terminals transmitted by the return channel and, as described below, generate instructions for issuing these services from the S_VOD server.
• the computer entity S can be further connected to an Internet-wide extended network RE to communicate with remote servers (not shown in the figure) for example for other services.
• the IT entity S can be connected to a PMS (Property Management System) management system in order to obtain particular information, for example, in the context of a hotel, the name of the customers. occupying the rooms of the establishment, room numbers, possibly access rights to certain services, etc.
• PMS Manufacturing Management System
• the return path is provided here by transmission over the COAX network using the DOCSIS standard.
• the terminals TV1, TV2, TVN are connected to splitters 23 allowing: on the one hand, the terminals to receive the streams diffused by the modulator (s) 14, and on the other hand, DOCSIS modems 21 to transmit the data to the terminals via a link 22 connecting the modem to the terminal, and to transmit the data transmitted by this terminal via the COAX network.
• a DOCSIS modem 21 notably makes it possible to exchange data between the terminals and the entity S, and more particularly the HTTP requests originating from the terminals, and their responses coming from the entity S.
• CMTS Cable Modem Termination System
• receiving antennas A-T, A-S and A-C receive broadcast streams and incidentally broadcast streams from the Internet (for example, web-radios). Furthermore, video files 10 are stored in memory, for example to broadcast one or more additional channels (or "internal chain") on the local network.
• the reference 12 designates the reception of the streams, with demodulation and transmission in the form of packets TS (for "Transport Stream") encapsulated in packets UDP (for "User Data Protocol”) multicast or unicast, forming a stream SPTS (Single Program Transport Stream: only one service per UDP stream).
• Reference 11 designates a module for generating MPEG2 signaling tables PSI ("Program Specifies Information") and DVB SI ("Service Information”) of type:
• NIT Network Information Table
• - PMT for "Program Map Table” corresponding to a program mapping table which lists the components of a service by identifying the PIDs of the relative packets
• - NIT for "Network Information Table” corresponding to a network information table which includes information about the physical network
• AIT for "Application Information Table" corresponding to an application information table which describes an application-type service element, such as an interactive application
• These tables can be pre-existing in a first stream that receives the computer entity S and this entity generates from this first stream a second stream whose PAT tables are rewritten according to the list of services to be broadcast in each DVB multiplex output .
• the original PMT tables can be rewritten to remove or add information about elementary streams (such as information about AIT tables).
• the original AIT tables can be deleted, modified, for example to remove information about the HTTP protocol, or replaced.
• the NIT table can be modified to modify the information of the original network for example.
• the SDT table can be modified to account for additional undifferentiated services information, or deleted to prevent automatic updating of the television sets.
• the connected applications web server 105 generates the content of the interactive applications. It is a server of 'Web server' type processing the URL requests by the HTTP protocol. It can also broadcast multimedia content, such as promotional videos, to be broadcast in pages of the interactive application (also via HTTP, or via RTP / RTSP).
• PMS client management system PMS for "Property Management System” of the hotel or more generally of the collective establishment.
• An on-demand audiovisual media server S_VOD contains a database of audiovisual contents (such as films) and provides the elementary streams of the audiovisual contents to be broadcast, with: tables of signaling necessary for the generator of tables 11 to be able to generate the PMT tables containing the information conforming to the broadcast stream, and the elementary streams (video, audio in the language selected by the client, etc.) to the multiplexer for broadcast on the network.
• the multiplexer 13 receives several elementary streams and information tables in the form of TS packets to be multiplexed within a single stream (multiplex).
• the multiplexer can also filter packets by their PID identifier.
• the reference COAX denotes the cable network on which the DVB flows to the connected television sets and the reference 111 designates a network to the IP protocol, for example: a LAN / Ethernet type network on twisted pairs or similar;
• the coaxial cable then being divided into two branches on arrival in the room, for the antenna connector of the television set and for the antenna connector a modem, the connector
• LAN Local Area Network
• the modem in this case, it is possible to provide a CMTS device at the head of the network to act as a bridge between the data modulated according to the DOCSIS format and the LAN of the servers) as shown by way of example in Figure 2;
• CPL power line carrier
• a firewall may be further useful to prohibit for example any external communication with the television sets to avoid saturation of the network 111.
• the different modules 10, 11, 105, and 13 can be grouped together with the same computer entity S.
• a server located at the head of S_VOD station broadcasts a set of on-demand audiovisual media on the COAX local network.
• each television is identified by the web server 105 by means of its IP address (fixed address assigned by a DHCP server (for "Dynamic Host Configuration Protocol") from its MAC address, and is connected to the computer network 111.
• this portal can for example be broadcast via the HbbTV standard, with in particular signaling tables generated by the module 11 and the content of the application can be delivered by the web server 105.
• Information is given on the screen through the interactive application on the list of content available in VOD and their tariff for example.
• the user selects a content (a single movie or a fixed price offer for a given duration) and enters a code on his remote control to validate his purchase.
• the session is then opened and information is displayed on the screen to indicate to the customer how to view a movie, such as changing channels ("type 0"). It should be noted that forwarding to another channel may be automatic.
• the session is closed after a given time, for example the next day at noon or when the user leaves the collective establishment (check-out in a hotel for example).
• the VOD server S_VOD broadcasts the content via DVB multiplexes on a number C of channels.
• Each multiplex can broadcast a maximum of M simultaneous sessions among the N services reported in the stream.
• the number M is defined by the bit rate available in the multiplex, and depends on the diffusion technique (modulation, bandwidth, etc.). For example: for a DVB-C, QAM-128 broadcast, the bit rate of a multiplex is about 44 Mpbs,
• the televisions are preset to receive only one of the N potentially broadcast services in the multiplex. They are then blocked so as not to be able to receive the services broadcast in the multiplex and which are not intended for them.
• the channel plan of each television sets aside C channels on the VOD. The broadcast is performed on one of these channels according to a principle of free location.
• the channel plan for each TV includes: standard television channels, and
• the server saves this information. More specifically, a utility can generate the complete channel map of each television from this information, in the form of one or more cloning files. For each TV, you can copy the file (s) to a USB memory stick and use it for setting channels as described above. If the connected application has an API (for "Application Programming Interface") to change the channel plan, it is also possible to adjust the additional channels on the TV directly from a tuning application.
• API for "Application Programming Interface"
• a VOD session management module of the computer entity S (not shown in the figures): - can identify the target television set by its IP address (linked to its address
• the DHCP server provides an IP address to the connected television sets according to their MAC address;
• this application can be activated directly by the television set (especially when the application is prerecorded in the station), either during a change of channel or at startup.
• the session can not be opened and a message is displayed to the user.
• the interactive application can intercept events such as pressing a button on the remote control.
• the application displays an on-screen user interface superimposing the multimedia content and / or sends HTTP requests to the web server 105.
• These requests may consist, for example, in browsing the content in progress, notably with the launch of an action of: reading,
• a connected application for example an HbbTV application
• This application is signaled to the television in the information tables broadcasting the VOD content.
• This application is signaled in "AUTOSTART" mode to start automatically when the channel on which the VOD content is broadcast is selected.
• the user interface is displayed when an action is requested, and hidden in the opposite case to not occupy part of the image of the VOD program.
• this connected application for example an application according to the CE-HTML ("Consumer Electronics HTML") standard, may be declared when the television is set, for example in the form of a URL, and automatically activated by the television on an event such as turning on or selecting a channel.
• This application can perform for example the actions below.
• the application can also offer other existing contents, for example the list of films forming part of the commercial offer subscribed by the user.
• the application can intercept events such as pressing certain buttons on the remote control, such as:
• the application may further provide a rights check by querying the computer entity S via HTTP requests.
• a rights check by querying the computer entity S via HTTP requests.
• the application can decide on actions such as:
• the table PAT 201 declares N services for the N television sets (TV1, TV2, TVN) of the local network.
• Each television set TVj (j from 1 to N) is set to receive only the service j and to ignore the other services.
• the PMT tables 202 and 203 are respectively destined for TV1 and TV2 televisions. These tables respectively point to the elementary streams 204 and 205 (not limited to video and audio contents) that are broadcast by the media server. audiovisual on demand S_VOD. If no on-demand audiovisual media service session is open for a particular television set, the corresponding elementary streams are not broadcast and no audiovisual media is displayed on that television set. At any given time, at most M open sessions can not be expected for a given transmission stream, ie at most M PMT tables pointing to elementary streams present in the stream. In particular, the other PMT tables point to elementary streams that are absent from the transmission stream.
• All the PMT tables also point to an interactive application reported via a table AIT 207.
• this table AIT declares an interactive application hosted by the web server 105 to the IP address of the local network (for example 192.168.10.1, so that the entry point of the application is here defined by the URL: "http://192.168.10.1/index.html").
• the web server 105 being connected to a session manager and the audiovisual media server S_VOD request, it is of course capable of generating different contents depending on whether a session is open or not.
• the television set TV1 can thus display a prompt message and / or a promotional page on top of this black screen.
• the station TV1 receives the audiovisual media 204 from the server S_VOD.
• the interactive application can then respond to the pressing of a key on the remote control by displaying for example a session control user interface indicating the current position in the audiovisual program and allowing to pause, to go back and / or to advance the multimedia content of this program.
• an interactive application routine is executed periodically on the television set (user station) for checking the status of the on-demand session with the computer unit S via verification requests. For example, if the session has expired, the application may display a prompt message.
• this periodic routine advantageously plays an anti-piracy role because it can make it possible to check, with the VOD session management module of the computer entity S, the state of the session as a function of the current service number (SID). , not just the IP address, to prevent an attacker from viewing a service that is not intended for that television set.
• the filtering of connected applications signaled by television services coming from A-T, AS and AC antennas, and in particular to limit the bandwidth occupied by services of such applications (such as services catch-up television, for example, or VOD, broadcast over the internet).
• the URL links originating from the television sets to prohibit access to the remote VOD contents (via a firewall implemented by a router for example); - or by deleting the signaling of the application (by modifying the PMT tables to no longer point to the AIT tables or simply by deleting the AIT tables);
• the third could be the most effective because it allows the user to access some of the interactive content without clogging the computer network. Nevertheless, in all four situations, the on-demand broadcast services of the originating services are in any case inaccessible.
• the first solution above imposes a filtering URL links from television sets to prohibit their access to remote VOD content (with, for illustrative purposes, the aforementioned implementation of a firewall).
• the AIT tables are identified in packets transported by the transmission stream (in DVB format) by their PID identifier (for "Packet Identifier").
• the PMT service tables point to the PID identifier of the AIT tables. If we delete the PID identifier of the AIT tables in the PMT tables, the PMT tables of the stream can no longer correctly point to the AIT tables (disappearance of the interactive application associated with the PMT table).
• the filtering of PID packets equal to that of an AIT table also makes it possible to no longer signal the application to the connected television sets.
• the fourth solution consisting of a replacement of the original interactive application by a third application, such as for example an application dedicated to the establishment, can proceed as follows:
• adding the new AIT table for example the AIT 207 table.
• the application is not interrupted when going from one channel to another and the user can at any time bring up the application by pressing a code on the remote control (eg the aforementioned "red button”).
• the modification of the identifiers ONID and TSID for example makes it possible to establish the same application for all the services.
• this terminal detects that the new service selected has the same application as the service it has just left and it does not interrupt the execution interactive application.
• the two applications are considered different, the initial interactive application is closed and the interactive application of the end string is started.
• the computing entity S can receive at least a first stream Oi comprising elementary streams of services (audio, video, subtitles, etc.) as described above.
• these elementary streams include television services data.
• a next step S4 the computer entity S generates a common stream ⁇ 2 comprising at least: the data of the stream ⁇ 1 received at the step S 1, and
• the computer entity S assigns at least one video-on-demand service respectively to each of the television sets.
• the computer entity S generates the video-on-demand services C VOD dedicated respectively to television sets TV1, TV2, TVN.
• the computer entity S assigns each of the video-on-demand services C VOD : video-on-demand data (data_VOD) retrieved from the server S_VOD, and
• each of the video-on-demand services C j VOD dedicated to the television sets TVj may comprise data (data_VOD) j and signaling tables (signaling_VOD) j specific to each of the stations.
• the video-on-demand (data_VOD) data j are delivered by the server S_VOD and broadcast by the computer entity S (via the common stream ⁇ 2 ) only if the television set TVj possesses an open video-on-demand service session with the entity, in this embodiment.
• the computing entity S thus generates the set of on-demand video services VOD N each comprising video-on-demand services Cj VOD dedicated to the television sets TVj, before including (step S4) this set VOD N to the common stream ⁇ 2 for broadcasting the on-demand services to all television stations members of the COAX network.
• the television sets receive the common stream ⁇ 2 and carry out an identification test.
• the television sets refer to the on-demand service which is dedicated to them among the set of video-on-demand services VOD N received, and this by identifying the service signaling table (PMT) for which the TVj post has been configured.
• PMT service signaling table
• the TVj set is configured to read only the PMT table linked to a given service and ignore the other tables.
• the set TVj recovers the video-on-demand service C j VOD dedicated to it and ignores the services dedicated to other television sets.
• the television set TVj carries out an event determination test relating to an application executed by the set (navigation application in video-on-demand contents for example). These events can come from the aforementioned actions (for example pressing a button on the remote control of the television set TVj by the user).
• the application of the application video-on-demand service (C i VOD ) is implemented on the TVj set by executing an Appli_F application content associated with this application.
• This content Appli_F can be recovered (step S 8) from the web server 105 of the computer entity S (and this, on request via the return channel 111) or via the data carousel included in the common stream ⁇ 2 .
• AIT application signaling table
• step S7 if an event relating to the application is determined in step S7, this event is interpreted by the application according to REQ requests to the web server 105 of the computer entity S.
• the request REQ is issued by the television set TVj according to an identifier of the post.
• this identifier can be an address of the station within the COAX network such as its IP address.
• this identifier can be an address of the station within the COAX network such as its IP address.
• at least one "read” function and one "pause” function can be provided. When the media is paused, the user can select the "play" function of the application by pressing a button on the remote control.
• IPj request REQ
• the computing entity S When the computing entity S receives the request identified REQ (IPj) in step S10, the entity performs a test determining the access rights to the video service on demand of the TVj station sending the request.
• step S 10 When the test of step S 10 is satisfied (arrow O at the output of the test), the set TVj has an open session and has access rights to the video-on-demand service.
• the computer entity S (step SU) then authorizes the server S_VOD to deliver the video data on demand (data_VOD) j according to the request REQ (IPj) of the set TVj, for example, with a delivery of the content requested by the user via the aforementioned read request.
• the computer entity S retrieves the video on demand data (data_VOD) j delivered by the server S_VOD and assigns them to the on-demand service C j VOD dedicated to the set TVj before broadcasting them in the common flow ⁇ 2 .
• the set TVj does not have an open session and the computing entity S does not satisfy the request REQ (IPj) .
• the TVj set can be redirected to a PORT portal inviting the user to log in (paying for access rights for example) or to the video-on-demand application homepage.
• the computer entity S does not receive from the server S_VOD the data (data_VOD) j requested by the station TVj and these data are not broadcast in the common stream ⁇ 2 .
• on-demand services are here video-on-demand services. Nevertheless, this process extends to any other type of on-demand service (personalized multimedia homepage, minibar note, catalog of possible services depending on the type of room or hotel suite, etc.).

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

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• 2012
  • 2012-01-05 FR FR1250121A patent/FR2985629B1/fr not_active Expired - Fee Related
• 2013
  • 2013-01-04 EP EP13701831.3A patent/EP2801216A1/de not_active Withdrawn
  • 2013-01-04 WO PCT/FR2013/050023 patent/WO2013102745A1/fr active Application Filing

Non-Patent Citations (1)

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