EP3061259A1 - Multipoint broadcast method - Google Patents

Multipoint broadcast method

Info

Publication number
EP3061259A1
EP3061259A1 EP14824886.7A EP14824886A EP3061259A1 EP 3061259 A1 EP3061259 A1 EP 3061259A1 EP 14824886 A EP14824886 A EP 14824886A EP 3061259 A1 EP3061259 A1 EP 3061259A1
Authority
EP
European Patent Office
Prior art keywords
terminal
video
streams
user
scrolling
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP14824886.7A
Other languages
German (de)
French (fr)
Inventor
Christophe CARNIEL
Daniel DEDISSE
Pierre KEIFLIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vogo SA
Original Assignee
Vogo SA
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 Vogo SA filed Critical Vogo SA
Publication of EP3061259A1 publication Critical patent/EP3061259A1/en
Ceased legal-status Critical Current

Links

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
    • H04N21/21—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]
    • H04N21/60—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
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving management of server-side video buffer
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/411—Peripherals receiving signals from specially adapted client devices having similar hardware or software capabilities as the client device itself, e.g. a first STB connected to a second STB
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
    • 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
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection

Definitions

  • the present invention is in the field of communications and digital data transmission.
  • the invention particularly relates to a method of broadcasting digital data at least of the video type, preferably audio and video.
  • Such a method will find a particular application, but in no way limiting, in the capture, transmission and broadcasting of video data during events, in particular sports or music, locally on site within a sports or cultural venue, within the place where the events take place, intended for spectators.
  • the invention is also likely to find an application during congress type events, during a presentation, a conference, a speech or any oratory scene.
  • the broadcast of video captured in real time is via one or more giant screens which is equipped with said place, even monitors present in different places of the place, as in the boxes.
  • Such screens allow the simultaneous transmission, as well as deferred, of a single sequence at a time, the choice and display on this screen of the sequence being controlled by an operator in a control room, dedicated to the video.
  • the present invention aims to overcome the disadvantages of the state of the art, proposing to simultaneously broadcast several different video sequences directly to users, namely the viewers, at their personal terminal, preferably their cell phone or their tablet.
  • the invention uses an existing telecommunication network, wireless type, including wireless, especially the mobile network.
  • the invention makes it possible to simplify the infrastructure to be implanted within the place where the event takes place.
  • the invention provides a software application, equipping each terminal of a user, allowing the latter to manage the broadcast of one and / or the other of said sequences. Each user can then choose to review a specific moment of the event already elapsed, according to different angles of views.
  • the present invention relates to a method for broadcasting digital data streams at least of the video type, in which:
  • a simultaneous and continuous capture of at least two distinct video sequences is carried out and they are converted progressively into at least two streams (3) of at least digital data of the video type; said digital streams (3) are continuously and multipoint transmitted from at least one transmitting terminal (5) to at least two portable terminals (6) located at a distance, each terminal (6) being personal to a user ( 7) via a telecommunication network (8);
  • said interface (9) allows each user (7) to select one and / or the other of said video sequences for viewing at his / her terminal (6), as well as to control the broadcasting of said viewing by scrolling at real speed, or by stopping, slowing down, accelerating the scrolling speed, and / or by choosing the direction of scrolling, and / or choosing a moment of said sequence
  • such a method may consist in eliminating continuously in time each flow stored in said buffer after a time interval determined with respect to a duration defined for each sequence video.
  • said time interval may correspond to a duration of 10 to 20 minutes.
  • the invention technically makes it possible to manage the rights linked to the broadcasting of the data captured during the event, ensuring their suppression.
  • Other features and advantages of the invention will emerge from the following detailed description of non-limiting embodiments of the invention, with reference to the appended figure, schematically showing an example of the principle of the architecture of a mode. of operation of the diffusion method according to the invention.
  • the present invention relates to the broadcasting of digital data.
  • this broadcast can take place within a sports enclosure or around a field 1, intended to receive spectators who come to watch and / or participate in this event.
  • Such digital data can at least be of the video type.
  • This video data may also be coupled with audio-type sound data and / or photographic data, i.e. still images.
  • Said video data comes from a capture consisting of video footage acquisition.
  • Such an acquisition can be carried out by suitable means of video capture, in particular cameras 2, or even concerning the photos of the adapted devices.
  • the invention provides for a simultaneous and continuous capture of at least two distinct video sequences, namely from two different cameras 2 and therefore according to two angles of view different. More video captures can be made, depending on the means deployed for this purpose, in particular the number of cameras 2.
  • sequences are converted as and when in at least two streams 3 of at least digital data of the video type.
  • a possible conversion 4 may consist of a data compression step, in order to optimize their transmission through a network. This compression can be performed in real time through an audio / video encoder type system, so as to transform each stream 3 into an encoded stream.
  • conversions 4 are possible, consisting of processing said data, in particular the insertion of self-correcting codes in order to mitigate the transmission errors on wireless networks. Such processing can be carried out partly directly at the levels of the cameras 2 or partly at a remote centralized point, such as within a control room.
  • the invention provides for continuously transmitting said digital streams 3 from at least one transmission terminal 5 to at least two portable terminals 6, located at a distance, each terminal being personal to a user 7.
  • the latter is preferably a spectator come to attend the event, located within the sports grounds where the event takes place, especially in the stadium 1 or around the field, especially in the stands or stands.
  • this transmission step is performed via a telecommunications network 8.
  • said network 8 is a wireless wireless network.
  • a telephony network 8 preferably a cell phone type "smartphone" (for "smart phone"), or a tablet.
  • another type of network may be used, including a wireless local area network, such as
  • the invention provides for transmitting said streams 3 by means of a "multicast” transmission technology, or “multipoint” transmission or
  • This type of broadcast involves a single transmitter, in the form of said transmitting terminal, sending at least one signal 13 to several receivers, namely the terminals 6. In short, it is a communication "point to multipoints ". In particular, each stream 3 can be converted into a signal 13 of its own. There are then as many signals 13 as flows 3.
  • the invention involves a technology of the "Multimedia Broadcast Multicast Services” (MBMS) type of fourth generation mobile telephony networks (4G / LTE for "Long Term Evolution”).
  • MBMS Multimedia Broadcast Multicast Services
  • Such an interface 9 may consist of a software application, embedded in said terminal 6 and dedicated.
  • said application can be previously installed and executed from the memory of said terminal 6.
  • the execution of said application can initiate a client request within the multicast communication system mentioned above.
  • a step of identification and / or authentication of the user 7 may be necessary, for example in connection with a subscription to a service, including a pay service, in order to obtain the reception of said streams 3 and the viewing of said services. sequences.
  • said application makes it possible, on the one hand, to manage the reception of streams 3, in particular to convert them in order to broadcast the sequences to which they correspond. It is then the display means of the terminal 6, namely its screen 10, which makes it possible to view said sequences after conversion of the flow 3.
  • a simple conversion is only to directly read the encoded stream.
  • a portion of the software application is able to transcribe and read the encoded stream, without further processing, preferably continuously as and when received.
  • a possible conversion may consist of a decoding of the stream, in particular in real time.
  • Another type of conversion may consist in the correction of the data packets of the streams 3, in particular in case of absence or error concerning certain packets.
  • the application allows the user 7 to choose the reading mode of one or more of the video sequences corresponding to said stream 3 received.
  • said screen 10 may be provided touch, while the interface 9 has selectable elements, such as icons or buttons, constituting means for controlling the diffusion of one or more sequences.
  • the invention is characterized in that said interface 9 allows said user 7 to select one and / or the other of said video sequences for viewing at said terminal 6.
  • said interface 9 includes a first menu 11 for selecting the sequence that the user 7 wishes to view. In the example shown, it is the last sequence that has been selected for viewing on the screen 10 of said terminal 6.
  • the interface 9 also makes it possible to control the broadcasting of said viewing by scrolling at real speed, or by stopping, slowing, acceleration of the scrolling speed, and / or by choice of the scroll direction, and / or choice of a moment of said sequence.
  • a second menu 12 makes it possible to control all the aspects of the reading of the previously selected sequence.
  • an icon or a play button 120 to initiate the playback of the video sequence.
  • Another icon or stop button 121 makes it possible to stop the playback, making a still picture or a pause at a specific moment.
  • Another icon or button 122 makes it possible to advance, while still another 123 makes it possible to go back. It is also possible to perform a temporally increasing reading, but also decreasing in time, changing the direction of scrolling.
  • An additional icon or button 124 can also make it possible to manage the speed of scrolling, by accelerating or decreasing it, to obtain a slow motion, which can be a frame-by-frame playback of the sequence.
  • another icon or button 125 particularly in the form of a scroll bar, to select a specific moment of the video sequence, then to apply one and / or the other of the previous commands.
  • the user can revisit at will a specific moment of the event he attends, controlling the entire broadcast and looking at multiple angles of view corresponding to each sequence.
  • a sporting event such as a sports match between two teams
  • the user can then see and review an action in all its details.
  • the interface 9 makes it possible to control the diffusion of the simultaneous viewing of two sequences.
  • a second menu can be doubled in order to separately manage the control of the reading of each sequence, which is displayed at the same time on said screen 10. This feature allows the user to compare at the same time several angles of view.
  • the invention consists in storing temporary each stream 3 within a buffer 14 of circular type, at the internal memory of said terminal 6.
  • a buffer 14 is similar to a "buffer” circular or rotating, whose memory space is limited to a predefined size. In case of saturation of this memory space, the new data "hunt" the oldest data, including by overwriting the corresponding memory space.
  • the invention consists in eliminating continuously in time each stream 3 stored in said buffer memory 14 after a determined time interval with respect to a defined duration for each video sequence.
  • a duration can in particular correspond to a size of each sequence, depending on the video format of its stream 3.
  • said time interval may correspond to a duration of several minutes to several tens of minutes, in particular from 10 to 20 minutes.
  • the invention provides for limiting the retention time of the digital data transmitted and read at each terminal 6. This feature makes it possible to overcome the problems related to the management of broadcasting rights by proposing a technical solution which progressively suppresses the data received by each terminal 6, namely the video sequences.
  • the buffer is emptied of any data it contains.
  • the invention makes it possible to considerably reduce the quantities of data transmitted on said network 8, limiting the risks of saturation of the bandwidth.
  • the method according to the present invention allows a spectator to accurately review an elapsed moment of an event he attends, depending on the angle of view he wants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)

Abstract

The present invention relates to a method for broadcasting a video stream (3), in which separate video sequences are simultaneously and continuously captured and converted on the fly into digital video data streams (3), said streams (3) are continuously transmitted in multipoint mode from a transmitter to at least two remote portable personal terminals (6) of a user (7), via a telecommunication network (8), and then said streams (3) are received at each terminal (6) and an interface (9) to control the broadcast thereof is displayed. Said method is characterised in that said interface (9) allows each user (7) to select one and/or the other of said video sequences in order to view same on the terminal (6) of the user, as well as to control the broadcast by scrolling at real speed, or by modifying the scrolling speed, and/or by choosing the scrolling direction, and/or choosing a specific time of said sequence.

Description

PROCEDE DE DIFFUSION MULTIPOINTS  MULTIPOINT DIFFUSION METHOD
La présente invention entre dans le domaine des communications et de la transmission de données numériques. The present invention is in the field of communications and digital data transmission.
L'invention concerne particulièrement un procédé de diffusion de données numériques au moins du type vidéo, de préférence audio et vidéo.  The invention particularly relates to a method of broadcasting digital data at least of the video type, preferably audio and video.
Un tel procédé trouvera une application particulière, mais aucunement limitative, dans la capture, la transmission et la diffusion de données vidéo lors d'événements, notamment sportifs ou musicaux, localement sur site au sein d'une enceinte sportive ou culturelle, au sein du lieu où se déroulent lesdits événements, à destination des spectateurs. L'invention est aussi susceptible de trouver une application lors de manifestations de type congrès, lors d'une présentation, d'une conférence, d'un discours ou toute scène oratoire . De manière connue, lors d'un événement, par exemple un événement sportif se déroulant dans un stade, la diffusion de séquences vidéo capturées en temps réel s'effectue par l'intermédiaire d'un ou plusieurs écrans géants dont est équipé ledit lieu, voire de moniteurs présents à différents endroits dudit lieu, comme dans les loges. De tels écrans permettent la transmission en simultanée, ainsi que de façon différée, d'une seule séquence à la fois, le choix et l'affichage sur cet écran de la séquence étant commandés par un opérateur au sein d'une régie, dédiée à la vidéo.  Such a method will find a particular application, but in no way limiting, in the capture, transmission and broadcasting of video data during events, in particular sports or music, locally on site within a sports or cultural venue, within the place where the events take place, intended for spectators. The invention is also likely to find an application during congress type events, during a presentation, a conference, a speech or any oratory scene. In known manner, during an event, for example a sports event taking place in a stadium, the broadcast of video captured in real time is via one or more giant screens which is equipped with said place, even monitors present in different places of the place, as in the boxes. Such screens allow the simultaneous transmission, as well as deferred, of a single sequence at a time, the choice and display on this screen of the sequence being controlled by an operator in a control room, dedicated to the video.
Un tel système nécessite l'implantation d'une infrastructure dédiée, interne au lieu, coûteuse et complexe à gérer, qui ne laisse pas le choix au spectateur quant aux séquences qui sont diffusées .  Such a system requires the implementation of a dedicated infrastructure, internal to the place, expensive and complex to manage, which does not leave the choice to the viewer as to the sequences that are broadcast.
Une solution existante de transmission d'un flux de données est décrite au travers du document US 2003/058866. Cette solution consiste en un système de transmission de données à distance, pour transmettre classiquement des données sur un réseau, entre deux terminaux. An existing solution for transmitting a data stream is described in document US 2003/058866. This solution consists of a transmission system of remote data, for conventionally transmitting data over a network, between two terminals.
Une telle solution ne vise aucunement l'optimisation d'un tel transfert au sein d'une enceinte particulière, localisée, au sens de la présente invention, comme c'est le cas lors d'événements sportifs ou musicaux. Cette technologie ne prend pas en considération les droits attachés aux contenus transmis, en limitant leur temps de stockage sur le terminal .  Such a solution is not intended to optimize such a transfer within a particular enclosure, localized, within the meaning of the present invention, as is the case during sports or music events. This technology does not take into consideration the rights attached to the transmitted content, by limiting their storage time on the terminal.
La présente invention a pour but de pallier les inconvénients de l'état de la technique, en proposant de diffuser simultanément plusieurs séquences vidéo différentes directement vers des utilisateurs, à savoir les spectateurs, au niveau de leur terminal personnel, de préférence leur téléphone cellulaire ou leur tablette. Pour ce faire, l'invention utilise un réseau existant de télécommunication, de type sans-fil, notamment hertzien, en particulier le réseau de téléphonie mobile. Ainsi, l'invention permet de simplifier l'infrastructure à implanter au sein du lieu où se déroule 1' événement .  The present invention aims to overcome the disadvantages of the state of the art, proposing to simultaneously broadcast several different video sequences directly to users, namely the viewers, at their personal terminal, preferably their cell phone or their tablet. To do this, the invention uses an existing telecommunication network, wireless type, including wireless, especially the mobile network. Thus, the invention makes it possible to simplify the infrastructure to be implanted within the place where the event takes place.
De plus, l'invention prévoit une application logicielle, équipant chaque terminal d'un utilisateur, permettant à ce dernier de gérer la diffusion de l'une et/ou l'autre desdites séquences . Chaque utilisateur peut alors choisir de revoir un moment précis de l'événement déjà écoulé, selon différents angles de vues .  In addition, the invention provides a software application, equipping each terminal of a user, allowing the latter to manage the broadcast of one and / or the other of said sequences. Each user can then choose to review a specific moment of the event already elapsed, according to different angles of views.
En outre, une telle application permet de contrôler la diffusion de chaque séquence pour permettre à l'utilisateur d'effectuer notamment un ralentit dudit moment, ou bien d'autres actions sur la séquence qu'il a sélectionnée.  In addition, such an application makes it possible to control the broadcasting of each sequence to allow the user to perform, in particular, a slowing down of said moment, or else other actions on the sequence he has selected.
A cet effet, la présente invention concerne un procédé de diffusion de flux de données numériques au moins du type vidéo, dans lequel :  For this purpose, the present invention relates to a method for broadcasting digital data streams at least of the video type, in which:
- on effectue une capture simultanée et en continu d' au moins deux séquences vidéo distinctes et on les convertit au fur et à mesure en au moins deux flux (3) de données numériques au moins du type vidéo ; - on transmet en continu et en multipoints lesdits flux numériques (3) depuis au moins une borne d'émission (5) vers au moins deux terminaux portables (6), situés à distance, chaque terminal (6) étant personnel à un utilisateur (7) , par l'intermédiaire d'un réseau de télécommunication (8) ; a simultaneous and continuous capture of at least two distinct video sequences is carried out and they are converted progressively into at least two streams (3) of at least digital data of the video type; said digital streams (3) are continuously and multipoint transmitted from at least one transmitting terminal (5) to at least two portable terminals (6) located at a distance, each terminal (6) being personal to a user ( 7) via a telecommunication network (8);
- au niveau de chaque terminal (6) , on réceptionne lesdits flux (3) et on affiche une interface (9) de contrôle de leur diffusion .  at each terminal (6), said streams (3) are received and an interface (9) for controlling their diffusion is displayed.
Un tel procédé se caractérise par le fait que :  Such a method is characterized by the fact that:
- ladite interface (9) permet à chaque utilisateur (7) de sélectionner l'une et/ou l'autre desdites séquences vidéo en vue de son visionnage au niveau de son terminal (6) , ainsi que de contrôler la diffusion dudit visionnage par défilement à vitesse réelle, ou par arrêt, ralentissement, accélération de la vitesse de défilement, et/ou par choix du sens de défilement, et/ou choix d'un moment de ladite séquence  said interface (9) allows each user (7) to select one and / or the other of said video sequences for viewing at his / her terminal (6), as well as to control the broadcasting of said viewing by scrolling at real speed, or by stopping, slowing down, accelerating the scrolling speed, and / or by choosing the direction of scrolling, and / or choosing a moment of said sequence
et par le fait qu'il consiste à : and by the fact that it consists of:
- stocker de façon temporaire chaque flux (3) au sein d'une mémoire tampon (14) de type circulaire, au niveau de la mémoire interne de chaque terminal (6) ; et  temporarily storing each stream (3) in a circular buffer (14) at the internal memory of each terminal (6); and
- supprimer de manière continue dans le temps chaque flux (3) stocké au sein de ladite mémoire tampon (14) après un intervalle de temps déterminé par rapport à une durée définie pour chaque séquence vidéo, ledit intervalle de temps correspondant à une durée de plusieurs minutes à plusieurs dizaines de minutes .  continuously deleting each stream stored in said buffer after a given time interval with respect to a defined duration for each video sequence, said time interval corresponding to a duration of several minutes to several tens of minutes.
De plus, selon d'autres caractéristiques additionnelles, non limitatives, un tel procédé peut consister à supprimer de manière continue dans le temps chaque flux stocké au sein de ladite mémoire tampon après un intervalle de temps déterminé par rapport à une durée définie pour chaque séquence vidéo.  In addition, according to other additional, nonlimiting features, such a method may consist in eliminating continuously in time each flow stored in said buffer after a time interval determined with respect to a duration defined for each sequence video.
En outre, ledit intervalle de temps peut correspondre à une durée de 10 à 20 minutes.  In addition, said time interval may correspond to a duration of 10 to 20 minutes.
Ainsi, l'invention permet techniquement de gérer les droits liés à la diffusion des données capturées lors de l'événement, assurant leur suppression. D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée qui va suivre des modes de réalisation non limitatifs de l'invention, en référence à la figure annexée, représentant schématiquement un exemple de principe de l'architecture d'un mode de fonctionnement du procédé de diffusion selon l'invention. Thus, the invention technically makes it possible to manage the rights linked to the broadcasting of the data captured during the event, ensuring their suppression. Other features and advantages of the invention will emerge from the following detailed description of non-limiting embodiments of the invention, with reference to the appended figure, schematically showing an example of the principle of the architecture of a mode. of operation of the diffusion method according to the invention.
La présente invention concerne la diffusion de données numériques. The present invention relates to the broadcasting of digital data.
Une telle diffusion s'effectue dans le cadre d'événements, en particulier sportifs. De préférence, cette diffusion peut intervenir au sein d'une enceinte sportive ou autour d'un terrain 1, destiné à recevoir des spectateurs venus regarder et/ou participer à cet événement.  Such distribution is done in the context of events, especially sports. Preferably, this broadcast can take place within a sports enclosure or around a field 1, intended to receive spectators who come to watch and / or participate in this event.
De telles données numériques peuvent au moins être du type vidéo. Ces données vidéo peuvent aussi être couplées avec des données sonores de type audio et/ou des données photographiques, à savoir des images fixes.  Such digital data can at least be of the video type. This video data may also be coupled with audio-type sound data and / or photographic data, i.e. still images.
Lesdites données vidéo proviennent d'une capture consistant en une acquisition de séquences vidéo. Une telle acquisition peut être réalisée par des moyens adaptés de capture vidéo, notamment des caméras 2, voire concernant les photos des appareils adaptés .  Said video data comes from a capture consisting of video footage acquisition. Such an acquisition can be carried out by suitable means of video capture, in particular cameras 2, or even concerning the photos of the adapted devices.
Dans l'exemple représenté, plusieurs caméras 2, disposées à différents endroits dans l'enceinte sportive, notamment autour du terrain 1, effectuent chacune une acquisition d'une séquence particulière, selon un angle spécifique. Toutes ces acquisitions constituent alors ladite capture qui se veut simultanée et en continu. Selon l'exemple, trois séquences vidéo différentes sont acquises, mais l'invention prévoit d'effectuer une capture simultanée et en continu d'au moins deux séquences vidéo distinctes, à savoir provenant de deux caméras 2 différentes et donc selon deux angles de vue différents. Un plus grand nombre de captures vidéo peuvent être effectuées, en fonction des moyens déployés à cet effet, notamment le nombre de caméras 2. In the example shown, several cameras 2, arranged at different locations in the sports enclosure, especially around the terrain 1, each perform an acquisition of a particular sequence, according to a specific angle. All these acquisitions then constitute said capture that wants to be simultaneous and continuous. According to the example, three different video sequences are acquired, but the invention provides for a simultaneous and continuous capture of at least two distinct video sequences, namely from two different cameras 2 and therefore according to two angles of view different. More video captures can be made, depending on the means deployed for this purpose, in particular the number of cameras 2.
De plus, les séquences sont converties au fur et à mesure en au moins deux flux 3 de données numériques au moins du type vidéo. Une conversion possible 4 peut consister à une étape de compression des données, en vue d'optimiser leur transmission au travers d'un réseau. Cette compression peut s'effectuer en temps réel au travers d' un système de type encodeur audio/vidéo, de manière à transformer chaque flux 3 en un flux encodé .  In addition, the sequences are converted as and when in at least two streams 3 of at least digital data of the video type. A possible conversion 4 may consist of a data compression step, in order to optimize their transmission through a network. This compression can be performed in real time through an audio / video encoder type system, so as to transform each stream 3 into an encoded stream.
D'autres conversions 4 sont possibles, consistant à traiter lesdites données, notamment l'insertion de codes autocorrecteurs en vue de pallier les erreurs de transmission sur des réseaux sans fil. Un tel traitement peut s'effectuer en partie directement aux niveaux des caméras 2 ou bien en partie au niveau d'un point centralisé déporté, comme par exemple au sein d'une régie.  Other conversions 4 are possible, consisting of processing said data, in particular the insertion of self-correcting codes in order to mitigate the transmission errors on wireless networks. Such processing can be carried out partly directly at the levels of the cameras 2 or partly at a remote centralized point, such as within a control room.
Ensuite, l'invention prévoit de transmettre en continu lesdits flux numériques 3 depuis au moins une borne d'émission 5 vers au moins deux terminaux portables 6, situés à distance, chaque terminal étant personnel à un utilisateur 7. Ce dernier est préférentiellement un spectateur venu assister à l'événement, se situant au sein de l'enceinte sportive où se déroule ledit événement, notamment dans le stade 1 ou aux abords du terrain, notamment dans les gradins ou tribunes. Next, the invention provides for continuously transmitting said digital streams 3 from at least one transmission terminal 5 to at least two portable terminals 6, located at a distance, each terminal being personal to a user 7. The latter is preferably a spectator come to attend the event, located within the sports grounds where the event takes place, especially in the stadium 1 or around the field, especially in the stands or stands.
En outre, cette étape de transmission s'effectue par l'intermédiaire d'un réseau de télécommunication 8. Au sens de la présente invention, ledit réseau 8 est un réseau sans fil hertzien. Préférentiellement , un tel réseau peut être dédié à la téléphonie mobile. Dès lors, ledit terminal 6 est constitué par un récepteur à même de se connecter à un tel réseau 8 de téléphonie, de préférence un téléphone cellulaire de type « smartphone » (pour « téléphone intelligent ») , ou bien une tablette .  In addition, this transmission step is performed via a telecommunications network 8. For the purposes of the present invention, said network 8 is a wireless wireless network. Preferably, such a network can be dedicated to mobile telephony. Therefore, said terminal 6 is constituted by a receiver able to connect to such a telephony network 8, preferably a cell phone type "smartphone" (for "smart phone"), or a tablet.
Selon un mode de réalisation alternatif, en fonction de l'endroit où se déroule l'événement, un autre type de réseau peut être utilisé, notamment un réseau local sans fil, de typeAccording to an alternative embodiment, depending on the location of the event, another type of network may be used, including a wireless local area network, such as
« ifi » ou « WiMAX ». "Ifi" or "WiMAX".
En particulier, l'invention prévoit de transmettre lesdits flux 3 par le biais d'une technologie de transmission de type « multicast », ou transmission « multipoint » ou In particular, the invention provides for transmitting said streams 3 by means of a "multicast" transmission technology, or "multipoint" transmission or
« de groupe ». Ce type de diffusion fait intervenir un unique émetteur, sous la forme de ladite borne d'émission, envoyant au moins un signal 13 vers plusieurs récepteurs, à savoir les terminaux 6. En somme, il s'agit d'une communication « point à multipoints ». En particulier, chaque flux 3 peut être converti en un signal 13 qui lui est propre. Il y a alors autant de signaux 13 que de flux 3. " of group ". This type of broadcast involves a single transmitter, in the form of said transmitting terminal, sending at least one signal 13 to several receivers, namely the terminals 6. In short, it is a communication "point to multipoints ". In particular, each stream 3 can be converted into a signal 13 of its own. There are then as many signals 13 as flows 3.
De préférence, l'invention fait intervenir une technologie de type « Multimedia Broadcast Multicast Services » (MBMS) des réseaux de téléphonie mobile de quatrième génération (4G/LTE pour « Long Term Evolution ») .  Preferably, the invention involves a technology of the "Multimedia Broadcast Multicast Services" (MBMS) type of fourth generation mobile telephony networks (4G / LTE for "Long Term Evolution").
Après envoi des flux 3, on les réceptionne au niveau dudit terminal 6 et on affiche une interface 9 de contrôle de leur diffusion. After sending streams 3, they are received at said terminal 6 and an interface 9 is displayed for controlling their broadcast.
Une telle interface 9 peut consister en une application logicielle, embarquée au sein dudit terminal 6 et dédiée. En particulier, ladite application peut être préalablement installée et exécutée à partir de la mémoire dudit terminal 6.  Such an interface 9 may consist of a software application, embedded in said terminal 6 and dedicated. In particular, said application can be previously installed and executed from the memory of said terminal 6.
En particulier, l'exécution de ladite application peut initier une demande client au sein du système de communication multicast évoqué précédemment . Une étape d' identification et/ou d' authentification de l'utilisateur 7 peut être nécessaire, par exemple dans le cadre d'une souscription à un service, notamment payant, en vue d'obtenir la réception desdits flux 3 et le visionnage desdites séquences .  In particular, the execution of said application can initiate a client request within the multicast communication system mentioned above. A step of identification and / or authentication of the user 7 may be necessary, for example in connection with a subscription to a service, including a pay service, in order to obtain the reception of said streams 3 and the viewing of said services. sequences.
En outre, ladite application permet, d'une part, de gérer la réception des flux 3, notamment pour les convertir en vue de diffuser les séquences auxquels ils correspondent. C'est alors les moyens d'affichage du terminal 6, à savoir son écran 10, qui permet de visionner lesdites séquences après conversion des flux 3. In addition, said application makes it possible, on the one hand, to manage the reception of streams 3, in particular to convert them in order to broadcast the sequences to which they correspond. It is then the display means of the terminal 6, namely its screen 10, which makes it possible to view said sequences after conversion of the flow 3.
Une conversion simple consiste uniquement à lire directement le flux encodé. En somme, une partie de l'application logicielle est à même de transcrire et lire le flux encodé, sans autre traitement supplémentaire, de préférence en continu au fur et à mesure de sa réception.  A simple conversion is only to directly read the encoded stream. In short, a portion of the software application is able to transcribe and read the encoded stream, without further processing, preferably continuously as and when received.
Une conversion possible peut consister en un décodage du flux, notamment en temps réel.  A possible conversion may consist of a decoding of the stream, in particular in real time.
Un autre de type de conversion peut consister en la correction des paquets de données des flux 3, notamment en cas d' absence ou d' erreur visant certains paquets .  Another type of conversion may consist in the correction of the data packets of the streams 3, in particular in case of absence or error concerning certain packets.
D'autre part, l'application permet à l'utilisateur 7 de choisir le mode de lecture d'une ou plusieurs des séquences vidéo correspondant auxdits flux 3 reçus. Pour ce faire, ledit écran 10 peut être prévu tactile, tandis que l'interface 9 présente des éléments sélectionnables, tels des icônes ou des boutons, constituant des moyens de commande de la diffusion d'une ou plusieurs séquences. On the other hand, the application allows the user 7 to choose the reading mode of one or more of the video sequences corresponding to said stream 3 received. To do this, said screen 10 may be provided touch, while the interface 9 has selectable elements, such as icons or buttons, constituting means for controlling the diffusion of one or more sequences.
A ce titre, l'invention se caractérise par le fait que ladite interface 9 permet audit utilisateur 7 de sélectionner l'une et/ou l'autre desdites séquences vidéo en vue de son visionnage au niveau dudit terminal 6. Pour ce faire, ladite interface 9 comprend un premier menu 11 de sélection de la séquence que l'utilisateur 7 souhaite visionner. Dans l'exemple représenté, c'est la dernière séquence qui a été sélectionnée en vue de son visionnage sur l'écran 10 dudit terminal 6.  As such, the invention is characterized in that said interface 9 allows said user 7 to select one and / or the other of said video sequences for viewing at said terminal 6. To do this, said interface 9 includes a first menu 11 for selecting the sequence that the user 7 wishes to view. In the example shown, it is the last sequence that has been selected for viewing on the screen 10 of said terminal 6.
De plus, l'interface 9 permet aussi de contrôler la diffusion dudit visionnage par défilement à vitesse réelle, ou par arrêt, ralentissement, accélération de la vitesse de défilement, et/ou par choix du sens de défilement, et/ou choix d'un moment de ladite séquence. En d'autres termes, un second menu 12 permet de contrôler tous les aspects de la lecture de la séquence préalablement sélectionnée. In addition, the interface 9 also makes it possible to control the broadcasting of said viewing by scrolling at real speed, or by stopping, slowing, acceleration of the scrolling speed, and / or by choice of the scroll direction, and / or choice of a moment of said sequence. In other words, a second menu 12 makes it possible to control all the aspects of the reading of the previously selected sequence.
De façon non limitative, il est possible pour l'utilisateur, par l'intermédiaire d'une icône ou d'un bouton de lecture 120 d'initier la lecture de la séquence vidéo. Une autre icône ou bouton d'arrêt 121 permet de stopper la lecture, faisant un arrêt sur image ou une pause à un moment précis . Une autre icône ou bouton 122 permet d'avancer, tandis qu'encore une autre 123 permet de revenir en arrière. Il est aussi alors possible d'effectuer une lecture croissante temporellement , mais aussi décroissante dans le temps, modifiant le sens de défilement. Une icône ou bouton 124 supplémentaire peut aussi permettre de gérer la vitesse de défilement, en l'accélérant ou en la diminuant, pour obtenir un ralenti, pouvant aller à une lecture image par image de la séquence. Enfin, une autre icône ou bouton 125, notamment sous la forme d'une barre de défilement, permet de sélectionner un instant précis de la séquence vidéo, puis d'y appliquer l'une et/ou l'autre des commandes précédentes . Without limitation, it is possible to the user, through an icon or a play button 120 to initiate the playback of the video sequence. Another icon or stop button 121 makes it possible to stop the playback, making a still picture or a pause at a specific moment. Another icon or button 122 makes it possible to advance, while still another 123 makes it possible to go back. It is also possible to perform a temporally increasing reading, but also decreasing in time, changing the direction of scrolling. An additional icon or button 124 can also make it possible to manage the speed of scrolling, by accelerating or decreasing it, to obtain a slow motion, which can be a frame-by-frame playback of the sequence. Finally, another icon or button 125, particularly in the form of a scroll bar, to select a specific moment of the video sequence, then to apply one and / or the other of the previous commands.
Ainsi, l'utilisateur peut revoir à sa guise un moment précis de l'événement auquel il assiste, en contrôlant intégralement la diffusion et en regardant plusieurs angles de vue correspondant à chaque séquence. Dans l'exemple d'un événement sportif, telle une rencontre sportive entre deux équipes, l'utilisateur peut alors voir et revoir une action dans tous ses détails . Selon un mode de réalisation particulier, non représenté, l'interface 9 permet de contrôler la diffusion du visionnage simultané de deux séquences. En somme, un second menu peut être doublé en vue de séparément gérer le contrôle de la lecture de chaque séquence, qui s'affiche en même temps sur ledit écran 10. Cette particularité permet à l'utilisateur de comparer en même temps plusieurs angles de vue.  Thus, the user can revisit at will a specific moment of the event he attends, controlling the entire broadcast and looking at multiple angles of view corresponding to each sequence. In the example of a sporting event, such as a sports match between two teams, the user can then see and review an action in all its details. According to a particular embodiment, not shown, the interface 9 makes it possible to control the diffusion of the simultaneous viewing of two sequences. In sum, a second menu can be doubled in order to separately manage the control of the reading of each sequence, which is displayed at the same time on said screen 10. This feature allows the user to compare at the same time several angles of view.
Dès lors, il est possible de synchroniser les deux séquences, afin que leur lecture s'opère à partir d'un même instant .  Therefore, it is possible to synchronize the two sequences, so that their reading takes place from the same moment.
Pour ce faire, l'invention consiste à stocker de façon temporaire chaque flux 3 au sein d'une mémoire tampon 14 de type circulaire, au niveau de la mémoire interne dudit terminal 6. Une telle mémoire tampon 14 s'apparente à un « buffer » circulaire ou tournant, dont l'espace mémoire est limité à une taille prédéfinie. En cas de saturation de cet espace mémoire, les nouvelles données viennent « chasser » les données les plus anciennes, notamment par écrasement de l'espace mémoire correspondant. To do this, the invention consists in storing temporary each stream 3 within a buffer 14 of circular type, at the internal memory of said terminal 6. Such a buffer 14 is similar to a "buffer" circular or rotating, whose memory space is limited to a predefined size. In case of saturation of this memory space, the new data "hunt" the oldest data, including by overwriting the corresponding memory space.
En d'autres termes, l'invention consiste à supprimer de manière continue dans le temps chaque flux 3 stocké au sein de ladite mémoire tampon 14 après un intervalle de temps déterminé par rapport à une durée définie pour chaque séquence vidéo . Une telle durée peut notamment correspondre à une taille de chaque séquence, dépendant du format vidéo de son flux 3.  In other words, the invention consists in eliminating continuously in time each stream 3 stored in said buffer memory 14 after a determined time interval with respect to a defined duration for each video sequence. Such a duration can in particular correspond to a size of each sequence, depending on the video format of its stream 3.
En particulier, selon le mode de réalisation préférentiel, ledit intervalle de temps peut correspondre à une durée de plusieurs minutes à plusieurs dizaines de minutes, notamment de 10 à 20 minutes.  In particular, according to the preferred embodiment, said time interval may correspond to a duration of several minutes to several tens of minutes, in particular from 10 to 20 minutes.
Par ailleurs, l'invention prévoit de limiter le temps de conservation des données numériques transmises et lues au niveau de chaque terminal 6. Cette particularité permet de s'affranchir des problèmes liés à la gestion des droits de diffusion, en proposant une solution technique qui supprime progressivement les données reçues par chaque terminal 6, à savoir les séquences vidéo.  Furthermore, the invention provides for limiting the retention time of the digital data transmitted and read at each terminal 6. This feature makes it possible to overcome the problems related to the management of broadcasting rights by proposing a technical solution which progressively suppresses the data received by each terminal 6, namely the video sequences.
Dès lors, le remplacement des anciennes données de chaque flux 3 par l'arrivée des nouvelles données de ce même flux 3 au sein de ladite mémoire tampon 14 simule une opération de suppression 15, telle que schématisée.  Therefore, the replacement of the old data of each stream 3 by the arrival of the new data of the same stream 3 within said buffer memory 14 simulates a deletion operation 15, as schematized.
En outre, il est possible d'envisager, à la fin de l'événement auquel l'utilisateur 7 assiste, de continuer l'émission des flux 3, sans contenu, sur un laps de temps donné et suffisant, de manière à poursuivre l'écrasement et cette suppression de toute donnée antérieure, jusqu'à ce que la mémoire soit vide de tout contenu.  In addition, it is possible to envisage, at the end of the event at which the user 7 attends, to continue the transmission of streams 3, without content, over a given period of time and sufficient, so as to continue the overwriting and deleting any previous data, until the memory is empty of any content.
De plus, il est aussi possible de commander à distance, par l'intermédiaire d'un signal spécifique, incorporé à l'un desdits flux 3, l'arrêt de ladite application logicielle et sa fermeture, en vue de vider intégralement la mémoire tampon 14, s' assurant ainsi de la destruction des données qu'elle contient . In addition, it is also possible to remotely control, by means of a specific signal, incorporated in one of said streams 3, stopping said software application and closing it, in order to completely empty the buffer memory 14, thus ensuring the destruction of the data that 'it contains .
Selon un mode de réalisation simplifié, après un laps de temps déterminé, à la fermeture de ladite application, à la déconnexion volontaire ou forcée de l'utilisateur 7, le buffer est vidé de toute donnée qu'il contient.  According to a simplified embodiment, after a determined lapse of time, when closing said application, the voluntary or forced disconnection of the user 7, the buffer is emptied of any data it contains.
De ce qui précède, l'invention permet de considérablement diminuer les quantités de données transmises sur ledit réseau 8, limitant les risques de saturation de la bande passante. De plus, la gestion par l'utilisateur 7 s 'effectuant localement au niveau du terminal 6, aucun autre outil ou protocole de communication n'est requis, s ' affranchissant d'une exécution à distance sur un serveur dédié . From the foregoing, the invention makes it possible to considerably reduce the quantities of data transmitted on said network 8, limiting the risks of saturation of the bandwidth. In addition, the management by the user 7 being performed locally at the terminal 6, no other tool or communication protocol is required, freeing a remote execution on a dedicated server.
Ainsi, le procédé selon la présente invention permet à un spectateur de revoir précisément un moment écoulé d'un événement auquel il assiste, selon l'angle de vue qu'il souhaite .  Thus, the method according to the present invention allows a spectator to accurately review an elapsed moment of an event he attends, depending on the angle of view he wants.

Claims

REVENDICATIONS
1. Procédé de diffusion de flux (3) de données numériques au moins du type vidéo, lors d'événements localement sur site au sein d'une enceinte sportive ou culturelle, à destination des spectateurs, procédé dans lequel : A method of broadcasting streams (3) of digital data of at least video type, at events locally on site within a sports or cultural venue, for spectators, wherein:
- on effectue une capture simultanée et en continu d' au moins deux séquences vidéo distinctes et on les convertit au fur et à mesure en au moins deux flux (3) de données numériques au moins du type vidéo ;  a simultaneous and continuous capture of at least two distinct video sequences is carried out and they are converted progressively into at least two streams (3) of at least digital data of the video type;
- on transmet en continu et en multipoints lesdits flux numériques (3) depuis au moins une borne d'émission (5) vers au moins deux terminaux portables (6), situés à distance, chaque terminal (6) étant personnel à un utilisateur (7) , par l'intermédiaire d'un réseau de télécommunication (8) ;  said digital streams (3) are continuously and multipoint transmitted from at least one transmitting terminal (5) to at least two portable terminals (6) located at a distance, each terminal (6) being personal to a user ( 7) via a telecommunication network (8);
- au niveau de chaque terminal (6) , on réceptionne lesdits flux (3) et on affiche une interface (9) de contrôle de leur diffusion ;  at each terminal (6), said flows (3) are received and an interface (9) for controlling their diffusion is displayed;
caractérisé par le fait que : characterized by the fact that:
- ladite interface (9) permet à chaque utilisateur (7) de sélectionner l'une et/ou l'autre desdites séquences vidéo en vue de son visionnage au niveau de son terminal (6) , ainsi que de contrôler la diffusion dudit visionnage par défilement à vitesse réelle, ou par arrêt, ralentissement, accélération de la vitesse de défilement, et/ou par choix du sens de défilement, et/ou choix d'un moment de ladite séquence  said interface (9) allows each user (7) to select one and / or the other of said video sequences for viewing at his / her terminal (6), as well as to control the broadcasting of said viewing by scrolling at real speed, or by stopping, slowing down, accelerating the scrolling speed, and / or by choosing the direction of scrolling, and / or choosing a moment of said sequence
et par le fait qu'il consiste à : and by the fact that it consists of:
- stocker de façon temporaire chaque flux (3) au sein d'une mémoire tampon (14) de type circulaire, au niveau de la mémoire interne de chaque terminal (6) ; et  temporarily storing each stream (3) in a circular buffer (14) at the internal memory of each terminal (6); and
- supprimer de manière continue dans le temps chaque flux (3) stocké au sein de ladite mémoire tampon (14) après un intervalle de temps déterminé par rapport à une durée définie pour chaque séquence vidéo, ledit intervalle de temps correspondant à une durée de plusieurs minutes à plusieurs dizaines de minutes . continuously deleting each stream stored in said buffer after a given time interval with respect to a defined duration for each video sequence, said time interval corresponding to a duration of several minutes to several tens of minutes.
2. Procédé de diffusion selon la revendication 1 caractérisé en ce que ledit intervalle de temps correspond une durée de 10 à 20 minutes. 2. Broadcast method according to claim 1 characterized in that said time interval corresponds to a duration of 10 to 20 minutes.
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10375456B2 (en) 2017-04-14 2019-08-06 Sony Corporation Providing highlights of an event recording
US10911839B2 (en) 2017-04-17 2021-02-02 Sony Corporation Providing smart tags
EP4304167A1 (en) 2021-06-14 2024-01-10 Samsung Electronics Co., Ltd. Electronic device carrying out video call by using frc, and operation method for electronic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2613523A2 (en) * 2012-01-09 2013-07-10 Samsung Electronics Co., Ltd Display apparatus and control method thereof

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795504A (en) * 1993-09-20 1995-04-07 Fuji Photo Film Co Ltd Video printer
US6792047B1 (en) * 2000-01-04 2004-09-14 Emc Corporation Real time processing and streaming of spliced encoded MPEG video and associated audio
US8583027B2 (en) * 2000-10-26 2013-11-12 Front Row Technologies, Llc Methods and systems for authorizing computing devices for receipt of venue-based data based on the location of a user
US7782363B2 (en) * 2000-06-27 2010-08-24 Front Row Technologies, Llc Providing multiple video perspectives of activities through a data network to a remote multimedia server for selective display by remote viewing audiences
JP2003018536A (en) * 2001-07-03 2003-01-17 Aruze Corp Distribution data reproducing equipment and distribution data distributing equipment
JP2003069977A (en) * 2001-08-28 2003-03-07 Sony Corp Data transmission method by network distribution, reception method of network distribution, data transmission system by network distribution and reception system for network distribution
US7725557B2 (en) * 2002-06-24 2010-05-25 Microsoft Corporation Client-side caching of streaming media content
US7683937B1 (en) * 2003-12-31 2010-03-23 Aol Inc. Presentation of a multimedia experience
US8171516B2 (en) * 2004-02-24 2012-05-01 At&T Intellectual Property I, L.P. Methods, systems, and storage mediums for providing multi-viewpoint media sharing of proximity-centric content
US20060104600A1 (en) * 2004-11-12 2006-05-18 Sfx Entertainment, Inc. Live concert/event video system and method
US7855638B2 (en) * 2005-07-14 2010-12-21 Huston Charles D GPS based spectator and participant sport system and method
EP2463820A3 (en) * 2005-07-22 2012-09-12 Kangaroo Media, Inc. System and methods for enhancing the experience of spectators attending a live sporting event
US8042140B2 (en) * 2005-07-22 2011-10-18 Kangaroo Media, Inc. Buffering content on a handheld electronic device
US8490126B2 (en) * 2006-10-02 2013-07-16 AT&T Intellecutal Property I, LP System and method of restricting access to video content
US8095680B2 (en) * 2007-12-20 2012-01-10 Telefonaktiebolaget Lm Ericsson (Publ) Real-time network transport protocol interface method and apparatus
US8340654B2 (en) * 2009-05-26 2012-12-25 Lextech Labs Llc Apparatus and method for video display and control for portable device
US8812990B2 (en) * 2009-12-11 2014-08-19 Nokia Corporation Method and apparatus for presenting a first person world view of content
US8374113B2 (en) * 2010-06-03 2013-02-12 Cisco Technology, Inc. Distributed gateway for reliable multicast wireless video
US8681768B2 (en) * 2010-09-21 2014-03-25 Vantrix Corporation System and method of pacing real time media transmission over a broadband channel using micro bursting
US9252897B2 (en) * 2010-11-10 2016-02-02 Verizon Patent And Licensing Inc. Multi-feed event viewing
GB2486002A (en) * 2010-11-30 2012-06-06 Youview Tv Ltd Media Content Provision
CN103502986B (en) * 2011-03-07 2015-04-29 科宝2股份有限公司 Systems and methods for analytic data gathering from image providers at an event or geographic location
US20130021261A1 (en) * 2011-07-18 2013-01-24 Research In Motion Limited Electronic device and method of controlling same
US9210477B2 (en) * 2012-11-29 2015-12-08 Fanvision Entertainment Llc Mobile device with location-based content
US20140189760A1 (en) * 2012-12-31 2014-07-03 Charles R. Payette Method and system for allocating wireless resources
US9027042B2 (en) * 2013-08-02 2015-05-05 Wayne D Lonstein Systems and methods for detecting improper use of telecommunications reception device
KR101826704B1 (en) * 2013-09-13 2018-02-08 인텔 코포레이션 Video production sharing apparatus and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2613523A2 (en) * 2012-01-09 2013-07-10 Samsung Electronics Co., Ltd Display apparatus and control method thereof

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US20160255375A1 (en) 2016-09-01
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KR20160074646A (en) 2016-06-28
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