WO2014108648A1

WO2014108648A1 - System and method for distributing additional information to a secondary terminal

Info

Publication number: WO2014108648A1
Application number: PCT/FR2014/050044
Authority: WO
Inventors: Alain M. MOLINIE; Eric M. LAVIGNE
Original assignee: Awox
Priority date: 2013-01-10
Filing date: 2014-01-10
Publication date: 2014-07-17
Also published as: EP2944139A1

Abstract

The information communication device (20) comprises: - a first terminal (205) comprising: - a means (210) for receiving an audiovisual programme and at least one piece of information additional to the received programme and - a means (215) for playing back the audiovisual programme and/or at least one piece of received additional information; - at least one means (220) for recognising a programme during playback, comprising: - a means (225) for capturing signals broadcast by the first terminal and - a means (230) for transmitting a piece of information representative of the captured signals; - a first server (235) for identifying an audiovisual programme during playback, different from each secondary terminal, configured to receive the information representative of captured signals, and - at least one secondary portable communicating terminal (240), which further comprises: - a means (245) for receiving additional information relative to the programme received by the first terminal, coming from a remote server (255), via the first server, and/or the received programme; - a means (250) for displaying received additional information and/or the received programme and - a means (298) for controlling the playback means of the first terminal configured to control the playing back of the audiovisual programme and/or at least one piece of additional information.

Description

SYSTEM AND METHOD FOR DISTRIBUTING ADDITIONAL INFORMATION A

A

SECONDARY TERMINAL

TECHNICAL FIELD OF THE INVENTION

The present invention relates to an information communication device. It applies in particular to the field of interactive television. STATE OF THE ART

For the rest of this document, we will describe as "local" (as opposed to "remote") an object present in the same premises as other objects belonging to the same device.

The revenues of broadcasters are those of advertising broadcast on televisions. Today, advertising is restricted to passive and anonymous rendering on all televisions, regardless of the user or users of these televisions. At the same time, more and more television viewers are using, in addition to television, a second screen (smartphone or tablet, for example).

With this in mind, broadcasters are offering dedicated applications for this second screen to complement the ads on the main screen with ads targeted to the second screen, these ads can be interactive.

However, these applications require the user to download them from an application store. In addition, the effectiveness of these applications depends on the ability of the user to activate said applications when in front of the television. In addition, these applications are not able to determine if one or more people are watching the same program together. Finally, these applications used from the second screen do not allow control of the main screen or interact with it.

In addition, in the case of programs filmed from a variety of viewpoints simultaneously, such as a sports event filmed by multiple cameras, the user is forced to watch only one shot at a time. OBJECT OF THE INVENTION

The present invention aims to remedy all or part of these disadvantages. For this purpose, the present invention provides information communication device, which comprises:

a first (105, 205) terminal comprising:

means (1 10, 210) for receiving an audiovisual program and at least one additional piece of information for the program received and

means (1 15, 215) for restoring the audiovisual program and / or at least one additional information received;

at least one means (120, 220) for recognizing a program being restored, comprising:

means (125, 225) for capturing signals broadcast by the first terminal and

means (130, 230) for transmitting information representative of the signals received;

a first server (135, 235) for identifying an audiovisual program being restored, different from each secondary terminal, configured to receive the information representative of signals received and

at least one portable secondary terminal (140, 240) communicating, furthermore comprising:

means (145, 245) for receiving complementary information relating to the program received by the first terminal, from a remote server (155, 255), via the first server, and / or the program received ;

means (150, 250) for displaying complementary information received and / or the program received and

a means for controlling the means for restoring the first terminal configured to control the reproduction of the audiovisual program and / or at least one complementary piece of information.

The advantage of this device is to allow a broadcaster to display additional information to an audiovisual program in a guaranteed way. Moreover, this device adapts to both a live broadcast program and a program broadcast from a recording, such as a DVD for example. Finally, the possibility of controlling the display of the first terminal makes it possible to display one or more sources of information on the first terminal. Thus, it is possible, by ordering a secondary terminal to control the display of two views of the same sporting event filmed according to two different points of view, for example.

In embodiments, the device which is the subject of the present invention comprises means of synchronization between terminals implementing the Wi-Fi standard.

The advantage of these embodiments is that they rely on a very widely distributed standard that allows a facilitated implementation of the device. In embodiments, the synchronization means implements the transmission of a device. periodic signal defined in IEEE 802.1 1 as a "beacon frame" independent of the transmitted data.

These embodiments have the advantage of allowing strong synchronization between the different terminals and / or the first server and particularly ideal for audio-video synchronization in not exceeding 100 milliseconds of delay between the audio signal and the video signal.

In embodiments, each communicating portable secondary terminal comprises:

a means for detecting an interaction of the user during the display of the complementary information,

means for sending, to a first server, a signal representative of the detected interaction and

and the first server comprises:

means for receiving signals representative of detected interaction and local audience estimation means as a function of each received detected interaction.

These embodiments have the advantage of allowing a quantitative measurement of the audience of the audiovisual program as well as the audience of the additional information broadcast. This advantage is particularly important in the context of the monetization of the additional information disseminated.

In embodiments, the first terminal includes the program recognition terminal. These embodiments have the advantage of ensuring the proximity between the recognition terminal and the terminal configured to broadcast an audiovisual program and thus improve the performance of the recognition terminal.

In embodiments, at least one secondary terminal has a program recognition terminal.

These embodiments have the advantage of allowing increased mobility of the recognition terminal, thus capable of recognizing an audiovisual program independently of the first terminal on which the audiovisual program is broadcast.

In embodiments, the capture means is configured to capture a sound code incorporated in the sound signal of the audiovisual program, said code identifying said audiovisual program.

These embodiments have the advantage of allowing a fast and reliable identification of the audiovisual program being restored in which the sound code has been incorporated.

In embodiments, each secondary terminal comprises means for transmitting and / or receiving a signal representative of an interaction made with another secondary terminal during the display of complementary information on said other secondary terminal. and wherein the display means is configured to display information based on a signal representative of a said interaction.

These embodiments have the advantage of allowing greater interactivity between the different secondary terminals of the device. This advantage is particularly important in the case where the complementary information would be a game to which a plurality of secondary terminals would be connected, for example.

In embodiments, the means for displaying complementary information is a user interface whose content is generated by the remote server.

These embodiments have the advantage of allowing a low use of the resources of the secondary terminal, most of the processing being carried out remotely.

In embodiments, said content is described by beacon language instructions. These embodiments have the advantage of making it possible to display pages requiring few resources of a secondary terminal.

In embodiments, the device that is the subject of the present invention comprises at least one means of discovery of secondary terminals accessible on a local network and capable of receiving and displaying complementary information and / or the program received, implementing the UPnP standard, at least one secondary terminal having a means of discovering the first server by implementing the UPnP standard.

These embodiments have the advantage, once the discovery is finalized, to allow optimized communication between the terminals and / or the server of the device.

The present invention also relates to an information communication method, which comprises:

a step of reception, by a first terminal, of an audiovisual program and at least one additional information to the program received,

a step of restitution, by the first terminal, of the audiovisual program,

a step of capture, by a program recognition terminal, signals broadcast by the first terminal,

a step of transmission, by the program recognition terminal, of information representative of the signals picked up,

a step of receiving, by a first identification server of the audiovisual program being restored different from the first terminal and from each secondary terminal, information representative of the signals received,

a step of receiving, by a portable secondary terminal communicating, additional information relating to the received program, coming from a remote server, via the first server and / or the program received,

a step of displaying, by the communicating secondary portable terminal, received complementary information and / or the received program,

a step of control, by the secondary terminal, of the reproduction by the first terminal of the audiovisual program and / or of at least one complementary piece of information and a step of restitution, by the primary terminal, of the audiovisual program and / or of at least one complementary piece of information controlled by the secondary terminal.

The aims, characteristics and advantages of this method being similar to those of the information communication device object of the present invention, they are not recalled here.

BRIEF DESCRIPTION OF THE FIGURES

Other advantages, aims and features of the invention will emerge from the description which follows of at least one particular embodiment of the information communication device, with reference to the appended drawings, in which:

FIG. 1 represents, schematically, a first particular embodiment of the information communication device object of the present invention,

FIG. 2 represents, schematically, a second particular embodiment of the information communication device which is the subject of the present invention and

FIG. 3 represents a particular flow diagram of the information communication method that is the subject of the present invention.

DESCRIPTION OF EXAMPLES OF EMBODIMENT OF THE INVENTION

The present description is given in a non-limiting manner.

As of now, we note that the figures are not to scale.

"Playback" is the reading by a terminal of an audiovisual program.

The term "supplementary information" to an audiovisual program means any piece of audio or visual information associated with the audiovisual program. Thus, complementary information may correspond to another audiovisual program. For example, during a sports event filmed according to several points of view, the audiovisual program may correspond to the audiovisual stream broadcast by a channel and complementary information may correspond to another audiovisual stream filmed from a particular point of view shown or not in the audiovisual program. FIG. 1 shows a first particular embodiment of the device 10 which is the subject of the present invention. This device 10 comprises:

a first terminal 105 comprising:

means 1 10 of receiving an audiovisual program and at least one additional information to the program received;

a means 15 for restitution of the audiovisual program and / or at least one additional information received and

a program recognition terminal 120, comprising:

a means 125 for capturing signals broadcast by the first terminal 105 and

a means 130 for transmitting information representative of the signals received;

a first server 135 comprising:

means 175 for discovering secondary terminals 140 accessible on a local network and capable of receiving and displaying complementary information;

means 165 for receiving signals;

a means 180 for estimating local audience and

means 185 for synchronization between terminals;

two portable secondary terminals 140 communicating, each comprising, in addition:

means 145 for receiving complementary information relating to the received program from a remote server 155 via the first server 135 and / or the received program;

a means 150 for displaying complementary information received and / or the program received and

a means 198 for controlling the means 1 15 for restoring the first terminal 105 configured to control the reproduction of the audiovisual program and / or at least one complementary piece of information.

The first terminal 105 is, for example, a television connected to an analog or digital cable network providing the television an audiovisual program to broadcast. Thus, the means 1 10 for receiving an audiovisual program can be, for example, a plug connected to the cable network. Alternatively, this means 1 10 reception may be an antenna in the case of a satellite television network, wireless or internet. The means 15 for rendering the audiovisual program can be, for example, a screen. The restitution carried out by this means 1 15 restitution is controlled by at least one secondary terminal 140.

The program recognition terminal 120 is, for example, an electronic circuit connected to one of the ports of the television, such as a USB or HDMI port. This recognition terminal 120 comprises means 125 for capturing signals broadcast by the first terminal 105 which may be, for example, a microphone. This means 125 capture can, for example, capture the sound broadcast by the first terminal 105 to extract a succession of characteristic sound frequencies. For example, such a succession of frequencies is likely to be recurrent during the restitution of the credits of an audiovisual program regularly broadcast on a channel of the television network. In variants, this capture means 125 is configured to capture a sound code incorporated in the sound signal of the audiovisual program, said code identifying said audiovisual program, such as a DTMF code for example. In variants, the capture means 125 is configured to capture a succession of images, restored by the first terminal 105, characteristics of an audiovisual program. Finally, this recognition terminal 120 includes means 130 for transmitting information representative of the signals received. This transmission means 130 is an antenna configured to transmit on a wireless Internet network, for example.

In addition, the device 10 includes a first server 135 for identifying the audiovisual program being restored, different from the first terminal 105 and each secondary terminal 140, configured to receive the information representative of captured signals. This first server 135 is a set-top box, comprising a memory, for example. This first server 135 may, for example, daily record predetermined number of sound frequency sequences associated with an audiovisual program. Alternatively, this first server 135 can only include a memory and communicating each frequency sequence received to a remote server 155, this remote server 155 being configured to perform the identification of the audiovisual program being read according to the sound frequency sequence. communicated. In addition, this first server 135 comprises a signal reception means representative of a detected interaction between a user and a secondary terminal 140 during the restitution of an audiovisual program. This receiving means 165 is an antenna configured to transmit on a wireless Internet network, for example. The recognition terminal 120 comprises a means 180 of local audience estimation according to each received detected interaction. This estimating means 180 may be a computer program counting the number of complementary information displayed on secondary terminals 140 having been in interaction with a user. Finally, the first server 135 includes means 175 for finding secondary terminals accessible on a local area network and capable of receiving and displaying information complementary to at least one secondary terminal by implementing the UPnP standard ("Universal Plug and Play"). Play "in English). This means 175 of discovery is an antenna configured to communicate on a wireless Internet network, for example.

In addition, the device 10 comprises means 185 for synchronization between terminals implementing the Wi-Fi standard such as for example the transmission of a periodic signal IEEE 802.1 1 beacon frame (in French "markup frame") independent of the data transmitted. Traditionally, the beacon frame is used to allow a terminal to detect the presence of a nearby Wi-Fi network and its misuse makes it possible to achieve strong synchronization between terminals. Using the beacon frame as a clock synchronization allows increased accuracy of the order of twenty-five microseconds. This synchronization means 185 is, for example, a computer program present in each terminal and / or the first server adjusting the clock of said terminal and / or first server as a function of the clock of the received beacon frame signal. Alternatively, this synchronization means 185 is an antenna configured to transmit the beacon frame signal and the internal clock of each terminal and / or the first server 135 is configured to adjust to that of the beacon frame. In variants, a synchronization solution implementing the Wi-Fi standard without the use of the beacon frame signal is used.

Finally, the device 10 comprises two portable secondary terminals 140 communicating. Each of these secondary terminals 140 is a smartphone or tablet for example. Each of these terminals secondary 140 includes means 145 for receiving additional information relating to the program being restored, from a remote server 155, via the first server 135. This receiving means 145 is an antenna configured to communicate on a wireless internet network, for example. In addition, each of these secondary terminals 140 comprises a complementary information display means 150 received, such as a screen for example. This display means 150 is a graphical interface whose content, described by instructions of a tagged language such as HTML for example, is generated by the remote server 155.

In addition, each secondary terminal 140 includes a means 160 for detecting a user interaction during the display of the complementary information. This detection means 160 is, for example, a computer program configured to detect each action of a user on the human machine interface such as a touch screen or a keyboard for example. When these actions concern the displayed additional information, they are detected and recorded by the detection means 160. Each secondary terminal 150 includes means for transmitting, to a first server, a signal representative of the detected interaction. This transmission means may be an antenna configured to transmit on a wireless Internet network, for example. Alternatively, this transmission means is also the reception means 145.

In addition, each secondary terminal 140 includes means 198 for controlling the means 1 15 for restoring the first terminal 105 configured to control the restitution of the audiovisual program and / or at least one complementary piece of information. This control means 198 is, for example, an electronic circuit configured to issue a command to the first terminal 105. This command may notably be:

a command for displaying at least one complementary piece of information and the audiovisual program,

a command for displaying at least one additional information or a display command for the audiovisual program.

Thus, for example, it is possible to control the simultaneous rendering of the audiovisual program, but also a secondary image stream and an interface comprising textual data concerning the restored audiovisual program. In addition, each secondary terminal 140 includes means for transmitting and / or receiving a signal representative of an interaction made with another secondary terminal during the display of complementary information on said other secondary terminal and in wherein the display means is configured to display information as a function of a signal representative of a said interaction. This means 190 for transmitting and / or receiving a representative signal is, for example, an antenna configured to communicate on a wireless Internet network, for example. Finally, each secondary terminal 140 includes a means 170 for discovering the first server by implementing the UPnP standard. This discovery means 170 is an antenna configured to communicate on a wireless Internet network, for example.

In order to protect the DOS attack device (of denial of service), a secondary terminal 140 initiating a communication with a first server 135 authenticates itself. This also makes it possible to limit the number of requests received by the first server 135.

In addition, to ensure that the secondary terminals 140 are active in addition to being present near the first server 135, the first server 135 sends a packet configured to wake each secondary terminal 140 to which it is sent. The wake-up method differs according to the secondary terminal 140 and the first server 135 records, for each secondary terminal 140 in its network, the method of waking up said secondary terminal 140. For example, in the context of a wireless local area network, a method of the type "WoWLAN" (English "Wake up on wireless area network" translated into French by "Wake on wireless LAN") can be used.

In variants, the wireless communications made between the first server 135 and at least one secondary terminal 140 use the IEEE 802.1 standard known to the public as "Wi-Fi".

FIG. 2 shows a second particular embodiment of the device 20 of the present invention. This device 20 comprises:

a first terminal 205 comprising:

a means 210 for receiving an audiovisual program and

a means 215 of restitution of the audiovisual program;

a first server 235 comprising: means 275 for discovering secondary terminals 240 accessible on a local network and capable of receiving and displaying complementary information;

means 265 for receiving signals;

a means 280 for estimating local audience and

a means 285 for synchronization between terminals and

two portable secondary terminals 240 communicating, each comprising, in addition:

a program recognition terminal 220, comprising:

a means 225 for capturing signals broadcast by the first terminal 205 and

a means 230 for transmitting information representative of the signals received;

a means 245 for receiving additional information relating to the program being restored, from a remote server 255, via the first server 235 and

a complementary information display means 250 received.

The first terminal 205 is, for example, a television connected to an analog or digital cable network providing the television with an audiovisual program to broadcast. Thus, the means 210 for receiving an audiovisual program is, for example, a socket connected to the cable network. Alternatively, this reception means 210 is an antenna in the case of a satellite television network, wireless or internet. The means 215 for rendering the audiovisual program is, for example, a screen.

In addition, the device 20 includes a first server 235 for identifying the audiovisual program being restored, different from the first terminal 205 and each secondary terminal 240, configured to receive the information representative of captured signals. This first server 235 is a set-top box ("set-top box" in English) with a memory, for example. This first server 235 may, for example, daily record a predetermined number of sound frequency sequences associated with an audiovisual program. Alternatively, this first server 235 includes a memory and communicating each received frequency sequence to a remote server 255, which remote server 255 being configured to perform the identification of the audiovisual program being played according to the sound frequency sequence communicated.

In addition, this first server 235 comprises means 265 for receiving signals representative of a detected interaction between a user and a secondary terminal 240 during the restitution of an audiovisual program. This receiving means 265 is an antenna configured to transmit on a wireless Internet network, for example. The recognition terminal 220 comprises a local audience estimation means 280 as a function of each received detected interaction. This estimation means 280 may be a computer program counting the number of complementary information displayed on secondary terminals 240 having been in interaction with a user. Finally, the first server 235 comprises means 275 for finding secondary terminals accessible on a local network and capable of receiving and displaying information complementary to at least one secondary terminal by implementing the UPnP standard ("Universal Plug and Play"). Play "in English). This discovery means 275 is an antenna configured to communicate on a wireless Internet network, for example.

In addition, the device 20 comprises means 285 for synchronization between terminals, implementing the Wi-Fi standard that may consist of using the transmission of a periodic signal defined in IEEE 802.1 1 as a beacon frame (in French "frame of markup ") independent of the transmitted data. Using the beacon frame as a clock synchronization allows increased accuracy of the order of twenty-five microseconds. This synchronization means 285 is, for example, a computer program present in each terminal and / or first server adjusting the clock of said terminal and / or first server as a function of the clock of the received beacon frame signal. Alternatively, this synchronization means 285 is an antenna configured to transmit the beacon frame signal and the internal clock of each terminal and / or first server 235 is configured to adjust to that of the beacon frame. In variants, a synchronization solution implementing the Wi-Fi standard without the use of the beacon frame signal is used.

Finally, the device 20 comprises two portable secondary terminals 240 communicating. Each of these secondary terminals 240 is a smart phone or tablet for example. Each secondary terminal 240 comprises a program recognition terminal 220 which may be, for example, an electronic circuit connected to one of the ports of the television, such as a USB or HDMI port. This recognition terminal 220 comprises means 225 for capturing signals broadcast by the first terminal 205 which is, for example, a microphone. This capture means 225 captures, for example, the sound broadcast by the first terminal 205 to extract a succession of characteristic sound frequencies. For example, such a succession of frequencies is likely to be recurrent during the restitution of the credits of an audiovisual program regularly broadcast on a channel of the television network.

In variants, this capture means 225 is configured to capture a sound code incorporated in the sound signal of the audiovisual program, said code identifying said audiovisual program, such as a DTMF code for example. Finally, this recognition terminal 220 comprises means 230 for transmitting information representative of the signals received. This transmission means 230 is an antenna configured to transmit on a wireless Internet network, for example. Each of these secondary terminals 240 comprises a means 245 for receiving additional information relating to the program being restored, from a remote server 255, via the first server 235. This receiving means 245 is an antenna configured to communicate on a wireless Internet network, for example.

In addition, each of these secondary terminals 240 comprises a complementary information display means 250 received, such as a screen for example. This display means 250 is a graphical interface whose content, described by instructions of a tagged language such as HTML for example, is generated by the remote server 255. In addition, each secondary terminal 240 includes a means 260 for detecting an interaction of the user during the display of the complementary information. This detection means 260 is, for example, a computer program configured to detect each action of a user on the human machine interface such as a touch screen or a keyboard for example. When these actions concern the displayed additional information, they are detected and recorded by the detection means 260.

In addition, each secondary terminal 240 includes a means 298 for controlling the means 215 for restoring the first terminal 205 configured to order the return of the audiovisual program and / or at least additional information. This control means 298 is, for example, an electronic circuit configured to issue a command to the first terminal 205. This command may notably be:

a command for displaying at least one complementary piece of information or

- a display command of the audiovisual program.

Thus, for example, it is possible to control the simultaneous rendering of the audiovisual program, but also a secondary image stream and an interface comprising textual data concerning the restored audiovisual program.

Each secondary terminal 250 includes means for transmitting, to a first server, a signal representative of the detected interaction. This transmission means is an antenna configured to transmit on a wireless Internet network, for example. Alternatively, this transmission means is also the receiving means 245. In addition, each secondary terminal 240 comprises means for transmitting and / or receiving a signal representative of an interaction made with another secondary terminal during the display of complementary information on said other secondary terminal and in wherein the display means is configured to display information as a function of a signal representative of a said interaction. This means 290 for transmitting and / or receiving a representative signal is, for example, an antenna configured to communicate on a wireless Internet network, for example. Finally, each secondary terminal 240 includes means 270 for discovering the first server by implementing the UPnP standard. This discovery means 270 is an antenna configured to communicate on a wireless Internet network, for example.

In order to protect the DOS attack device 20 (from denial of service), the terminal initiating the communication with the other terminals is authenticated.

In addition, to ensure that the secondary terminals 240 are active in addition to being present near the first server 235, the first server 235 sends a packet configured to wake each secondary terminal 240 to which it is sent. The wake-up method differs depending on the secondary terminal 240 and the first server 235 records, for each secondary terminal 240 in its network, the wake up method of said secondary terminal 240.

FIG. 3 shows a first particular embodiment of the method that is the subject of the present invention. This method comprises:

a step 300 of discovery of secondary terminals accessible on a local network and capable of receiving and displaying complementary information,

a step 305 of reception, by a first terminal, of an audiovisual program,

a step 310 of restitution, by the first terminal, of the audiovisual program,

a step 315 of capture, by a program recognition terminal, of signals broadcast by the first terminal,

a step 320 of transmission, by the program recognition terminal, of information representative of the signals received,

a step 325 of reception, by a first identification server of the audiovisual program being restored different from the first terminal and of each secondary terminal, of the information representative of the signals picked up,

a step 330 of reception, by a portable secondary terminal communicating, of complementary information relating to the program being restored, coming from a remote server, via the first server,

a step 335 of display, by the communicating secondary portable terminal, of the complementary information received,

a step 340 of control, by the secondary terminal, the restitution by the first terminal of the audiovisual program and / or at least one complementary information and

a step 345 of restitution, by the primary terminal, of the audiovisual program and / or of at least one complementary piece of information controlled by the secondary terminal.

Step 300 of discovery of secondary terminals accessible on a local network and able to receive and display complementary information is realized, for example, by the implementation of a communicating antenna on an Internet network.

The reception step 305 is carried out by the implementation of an analog or digital cable television network or an antenna for example.

The step 310 of restitution is carried out by the implementation of a screen, for example.

The capture step 315 is performed by the implementation of a microphone, for example.

The transmission step 320 is performed by the implementation of an antenna transmitting on a wireless Internet network, for example.

The receiving step 325 is performed by the implementation of an antenna transmitting on a wireless Internet network, for example.

The step 330 of reception is carried out by the implementation of an antenna transmitting on a wireless Internet network, for example.

The display step 335 is performed by the implementation of a screen, for example.

The step 340 of control, by the secondary terminal, of the restitution by the first terminal of the audiovisual program and / or of at least one complementary piece of information is realized, for example, by the implementation of an electronic circuit configured to generate a command. The command thus generated is transmitted from the secondary terminal to the first terminal.

The step 345 of restitution, by the primary terminal, the audiovisual program and / or at least additional information controlled by the secondary terminal is achieved, for example, by the implementation of a screen.

Thus, as understood by reading the previous description, the present invention consists in allowing local identification of a program being restored and the display of additional information to this program on one or a plurality of present terminals. near the place of restitution of the program.

Claims

1. Device (10, 20) for communicating information, characterized in that it comprises:

a first (105, 205) terminal comprising:

means (125, 225) for capturing signals broadcast by the first terminal and

means (198, 298) for controlling the means for reproducing the first terminal configured to control the reproduction of the audiovisual program and / or at least one complementary piece of information.

2. Device (10, 20) according to claim 1, which comprises means (185, 285) for synchronization between terminals implementing the Wi-Fi standard.

3. Device (10, 20) according to claim 2, wherein the synchronization means implements the transmission of a periodic signal defined in IEEE 802.1 1 as a "beacon frame" (in French "buoyage frame"). ") Independent of the transmitted data.

4. Device (10, 20) according to one of claims 1 to 3, wherein each communicating portable secondary terminal comprises:

means (160, 260) for detecting an interaction of the user during the display of the complementary information,

means (145, 245) for transmitting, to a first server, a signal representative of the detected interaction and

wherein the first server comprises:

means (165, 265) for signal reception representative of detected interaction and

means (180, 280) of local audience estimation according to each received detected interaction.

5. Device (10) according to one of claims 1 to 4, wherein the first terminal comprises the program recognition means.

6. Device (20) according to one of claims 1 to 4, wherein at least one secondary terminal comprises a program recognition means.

7. Device (10, 20) according to one of claims 1 to 6, wherein the capture means is configured to capture a sound code incorporated in the sound signal of the audiovisual program, said code identifying said audiovisual program.

8. Device (10, 20) according to one of claims 1 to 7, wherein each secondary terminal comprises means (190, 290) for transmitting and / or receiving a signal representative of an interaction made with another secondary terminal during the display of complementary information on said other secondary terminal and wherein the display means is configured to display information as a function of a signal representative of said interaction.

9. Device (10, 20) according to one of claims 1 to 8, wherein the means for displaying complementary information is a user interface whose content is generated by the remote server.

The apparatus (10, 20) of claim 9, wherein said content is described by beacon language instructions.

1 1. Device (10, 20) according to one of claims 1 to 10, which comprises at least one means (175, 275) of discovery of secondary terminals accessible on a local network and capable of receiving and displaying complementary information and / or the received program, implementing the UPnP standard,

at least one secondary terminal comprising means (170, 270) for discovering the first server by implementing the UPnP standard.

12. Method (30) for communicating information, characterized in that it comprises:

a step (305) of reception, by a first terminal, of an audiovisual program and at least one complementary piece of information to the program received,

a step (310) of restitution, by the first terminal, of the audiovisual program,

a step (315) of capture, by a program recognition terminal, of signals broadcast by the first terminal,

a step (320) of transmission, by the program recognition terminal, of information representative of the signals received,

a step (325) of receiving, by a first identification server of the audiovisual program being restored different from the first terminal and from each secondary terminal, information representative of the signals received,

a step (330) of reception, by a portable secondary terminal communicating, complementary information relating to the program received, coming from a remote server, via the first server and / or the program received, a step (335) of displaying, by the communicating secondary portable terminal, received complementary information and / or the received program,

a step (340) of control, by the secondary terminal, of the reproduction by the first terminal of the audiovisual program and / or of at least one complementary piece of information and

a step (345) of restitution, by the primary terminal, of the audiovisual program and / or of at least one complementary piece of information controlled by the secondary terminal.