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.

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• 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)

Applications Claiming Priority (2)

Publications (1)

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ID=50137766

Family Applications (1)

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Citations (1)

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• 2013
  • 2013-10-23 FR FR1360299A patent/FR3012279B1/fr active Active
• 2014
  • 2014-10-23 SG SG11201603161QA patent/SG11201603161QA/en unknown
  • 2014-10-23 RU RU2016116323A patent/RU2016116323A/ru unknown
  • 2014-10-23 CA CA2927415A patent/CA2927415A1/fr not_active Abandoned
  • 2014-10-23 US US15/028,403 patent/US20160255375A1/en not_active Abandoned
  • 2014-10-23 MX MX2016005195A patent/MX2016005195A/es unknown
  • 2014-10-23 CN CN201480057372.6A patent/CN105637889A/zh active Pending
  • 2014-10-23 KR KR1020167013466A patent/KR20160074646A/ko not_active Application Discontinuation
  • 2014-10-23 WO PCT/FR2014/052705 patent/WO2015059420A1/fr active Application Filing
  • 2014-10-23 AU AU2014338814A patent/AU2014338814A1/en not_active Abandoned
  • 2014-10-23 JP JP2016549644A patent/JP2016538798A/ja active Pending
  • 2014-10-23 EP EP14824886.7A patent/EP3061259A1/de not_active Ceased
• 2016
  • 2016-04-18 IL IL245179A patent/IL245179A0/en unknown
  • 2016-09-30 HK HK16111467.3A patent/HK1223468A1/zh unknown

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