The present invention relates to a module and a process for inter-user communication over a bidirectional network (communication pathway making it possible to convey data in one direction and in the opposite direction at one and the same time), such as for example the Internet network. It deploys general sending of information, referred to as “broadcasting” (broadcasting in which said data are transmitted to all the destinations) via a broadcasting network, such as for example by radio broadcasting. The information pertains in particular to station-to-station exchanges, also referred to as P2P (standing for “Peer-to-peer”) exchanges, between users equipped with televisions.
“P2P” technology enables terminals of a bidirectional network, such as the Internet network, to exchange files by communicating directly with one another, instead of the exchanges being performed between the terminals and a central server concentrating and redistributing desired information (client/server model).
The worlds of the Internet and of television are gradually converging and allow in particular the use, on one's television, of Internet applications in the same way as they are practiced on personal computers (in addition to P2P applications: navigation around the web, sending and receiving of e-mails, forums, etc).
Moreover, it is known to exploit the synergy between communications via a bidirectional network and broadcasting. Thus, patent U.S. Pat. No. 5,036,518 describes a system guaranteeing the reliability of transmission of data for communications with a single origin and multiple destinations (“one-to-many”) or with multiple origins and destinations (“many-to-many”), in a communications network associated with a set of stations. According to the technique described, a retransmission station receives input data from participating stations according to a mode of communication with single origins and destinations (“one-to-one”), generates a special message header and transmits the data together with header by broadcasting over the network. Various nodes of the network additionally perform various specialized functions.
In this document, however, the broadcasting network is that used for the bidirectional exchanges. This situation is not therefore suitable for the synergetic combination of two distinct networks, the one bidirectional and the other for broadcasting, but corresponds to an advantageous use of the broadcasting capabilities of a bidirectional network.
Moreover, the document EP-A-1,107,596 discloses a technique usable in a cable network, to notify the users of the presence of other users with a view to communications between them. In a particular mode of implementation, this technique relies on the sending to a network head, of prior demands from users, these demands identifying other users whose presence on the network the demander wishes to ascertain. A tagging system can be used to detect the active decoders, hence their presence on the network. The demander advised of the presence of a user can then establish an interactive communication or a discussion (“chat”) therewith.
Once again, this priority document does not pertain to the synergetic combination of two distinct networks, the one bidirectional and the other for broadcasting, but is geared towards an advantageous use of a single bidirectional network.
Service providers, associating servers and radio broadcasting transmitters (“broadcasters”), can for their part combine the possibilities offered at one and the same time by the Internet network and telebroadcasting. For example they collect information from television viewers via the Internet network, process it, then broadcast the results thereof to the antenna. However, these systems are tailored for models of the client/server type when they combine the potentialities of the two networks, and can only offer possibilities of the station-to-station type through conventional use of the Internet network The present invention pertains to a module for inter-user communication over a bidirectional network, making it possible to derive full benefit from the combination of the latter network with a broadcasting network independent of the bidirectional network, for communications of the station-to-station type between users.
The communication module of the invention makes it possible more generally to adapt dynamically to requests formulated by users or to user interest centers pertaining to other users.
The invention is also aimed at a communication process having the aforesaid advantages, as well as to a server, a provider of services by broadcasting and a computer program.
It applies in particular to the sharing and exchanging of files between users, to keyboard-chats (also referred to simply as “chats”) and to forums, in particular by technologies of the P2P type.
For this purpose, the subject of the invention is a module for inter-user communication over a bidirectional network. This module comprises:
Document WO-01/60071 relates to an interactive multimedia user interface using affinity based categorization. Computing devices are able to receive both TV broadcast streams via a broadcast network (e.g. satellite), and various information via a bi-directional Internet network, such information comprising notably chat dialog data. Each computing device is able to store the TV broadcast stream for later viewing. Also, it may perform a combination of Internet and TV content and services, possibly based on triggers incorporated in the TV streams at the emitter side. The resulting combination may be then broadcast to other users via the bi-directional network. A filtering of the available Internet or broadcast content is also done at the computer side or at the level of an associated server, which enables interesting adaptation of the communication to the various users.
Though effective for user friendly and adaptive interactivity on the ground of broadcast streams, that technique requires high storing and processing capacities at the end computers, for locally storing and exploiting broadcast TV streams.
According to the invention,
The communication module of the invention thus comprises means for, ascertaining the ever-changing dynamic topology of the bidirectional network (through the intermediary of the return channel), and does not focus solely on the contents of the messages received. The recordings of information or the broadcasts are subject to this topology. Surprisingly, the introduction of this complementary concept offers hitherto inconceivable possibilities, in particular in respect of the exchanging of files and in respect of communications between users, as will become apparent hereinbelow.
By comparison with the document EP-A-1,107,596, the communication module of the invention leads to an unexpected apportioning of functions. Specifically, in an implementation centered on conversations between users (hence having applications corresponding to those of the priority document), the network surveillance information (monitoring of user connections) is transmitted to the users not via the bidirectional network, but via a broadcasting network independent of the latter. This feature contrasts with the common idea according to which information regarding third-party connections can be obtained only to the extent that one is connected oneself to the relevant (bidirectional) network.
To simplify the account, throughout what follows, the term “connection” will be understood to mean a connection of a user to the server via the bidirectional network.
In principle, the independence of the two networks, respectively bidirectional and broadcasting, is exploited to best effect by profiting from the connection information so as to execute appropriate operations at the right time. Such operations can consist in particular of a recording of data originating from a predefined user as soon as this user connects up or of a sending of relevant information via the broadcasting network concerning the real-time connections of the users, including to nonconnected users. An important advantage of the module of the invention is that the connections to the bidirectional network are not necessary in order for the system to be able to function successfully, by virtue of the combined use of the other network (for broadcasting) and of the dynamic particulars regarding the connections.
The broadcasting network can be a priori of any form (Ethernet, radio, satellite network, etc.). However, it is advantageously unidirectional (communication pathway which makes it possible to convey data in one direction only), and preferably consists more especially of a radio broadcasting network in the case of television. The bidirectional network is preferably the Internet. The communication module of the invention thus enables televisions with Internet access (“Internet TV”) to be made especially attractive. More generally, it is advantageous for the bidirectional and broadcasting networks to be a temporary network and a permanent unidirectional network respectively.
Broadcasting does not exclude communication targeted at a user or a set of predefined users, for example by means of a recognition code or an electronic signature.
Advantageously, said unit for triggering recording is designed to update in said storage space a list of the users connected to the server. This list makes it possible to obtain a summary of the results of monitoring the connections, and therefore correspondingly simplifies the exploitation of these results.
Two branches essentially are distinguished in the implementations of the communication module of the invention. The first relates to the exchanging of files between users, and the second concerns conversations between users, be they performed between targeted users (chats) or be they conducted in a group (forums). The communication module of the invention advantageously brings together the two types of capabilities, but can also exhibit the functionalities of just one or the other of the two branches.
According to the first branch of modes of implementation, the unit for triggering recording is capable:
Moreover, the unit for controlling broadcasting is designed to control the sending of files recorded in the storage space to the requester users, in accordance with the demands of these requester users.
The communication module thus plays an intermediate role in respect of the exchanging of files between users, without prejudice to autonomy and flexibility of communication between individual users. It is intended for undertaking essentially in four phases:
By virtue of this implementation, it is not necessary for the provider user to be connected at the time when the requester user formulates his demand, nor for the requester user to be connected at the time when this demand can be satisfied. Moreover, it is thus possible to avoid the lengthy waits necessary for downloading of large sized files, the broadcasting network generally exhibiting a better bandwidth and a better bit rate than the bidirectional network. Preferably, the requester user also has the possibility however, of opting for downloading via the bidirectional network. This downloading is initiated immediately if the file is already accessible, or subsequently during the requester user's next connection in the course of which this file becomes accessible.
The users are furnished with sufficient storage capabilities to allow the local recording of the files received. For example, this may for instance be Internet TV equipped with hard disks—the users may then be disconnected during those periods which are generally the longest on line, namely those for downloading. Additionally, any user can be either a requester only, or a provider only, or more generally both requester and provider at one and the same time. This last possibility is the basis for the concept of exchanges which is practiced in particular in P2P technology.
The requester user can explicitly request a desired file from an identified provider user. In another form of selection of the provider user, the requester user merely requests the file and the communication module is responsible for identifying one of the provider users able to provide this file. The communication module can itself even undertake a specific search, for example based on the title of a song or of a film.
Preferably:
Such a module makes it possible to optimize the delays in satisfying the users, according to a “first in-first out” rule.
In another preferred form of satisfying the demands, the communication module verifies with each new connection of a provider user whether one or more of the demands stored can be satisfied by this user.
Advantageously:
Thus, the users can have available all the particulars necessary for ascertaining the files made available by other users, without the server being constrained to keep these files in the storage space. The particulars transmitted by the communication module may or may not include particulars regarding the address of the available files, consisting for example of identifiers of the provider users.
According to the second branch of modes of implementation, the unit for controlling broadcasting is capable of controlling the sending of at least one list of users currently connected to the server via at least one communication service.
Thus, the set of users, Whether or not they be connected to the bidirectional network, are informed in real time of the identity of the parties involved in the communications service by the broadcasting network. They may thereby decide whether they themselves also desire to participate therein, by connecting up to the server via this service—the number of potential users of the service is increased accordingly. Interactive TV applications may, in this way, be especially attractive.
In a first advantageous form with broadcasting of the list of connected users, at least one of these communication services is a keyboard-chat application.
In a second advantageous form with broadcasting of the list of connected users, at least one of these communication services is a forum application. The unit for controlling broadcasting is preferably designed also to control the sending of contents exchanged via this forum service. The users are thus also informed in real time of the topics processed, and can decide with the best knowledge of the facts whether or not they desire to be involved.
Preferably said communication module is designed for a technology of station-to-station exchanges (P2P) between the users over the bidirectional network.
The invention also relates to a server, characterized in that it comprises a communication module in accordance with any one of the modes of implementation of the invention, That server is advantageously provided for users being able to connect to the server via at least one keyboard-chat application and/or forum application. The unit for controlling broadcasting of the communication unit is then capable of controlling the sending of at least one list of users, currently connected to the server via the keyboard-chat/forum application.
It also concerns a broadcasting set, characterized in that it comprises such a server. This broadcasting set therefore comprises at one and the same time means of broadcasting and of data transmission via the bidirectional network. Moreover, advantageously, that broadcasting set is intended for a radio broadcasting network, preferably a television network.
The subject of the invention is additionally a process for inter-user communication over a bidirectional network. This process comprises:
According to the invention:
This communication process preferably is designed to be deployed by means of a communication module in accordance with any one of the modes of implementation of the invention.
The invention also relates to a computer program product, characterized in that it comprises program code instructions for the execution of the steps of the communication process as claimed in the invention, when this program is executed on a computer. The expression “computer program product” is understood to mean any embodiment of the computer program, be it a medium for the program (disk, cassette, magnetic tape, etc.) or a signal (electronic signal via Internet, electromagnetic signal, etc.).
The invention will be better understood and illustrated by means of the following exemplary implementations and deployments, which are in no way limiting, with reference to the appended figures in which:
In
Additionally, in the figures, the communications via the bidirectional network are conventionally represented by solid arrows and those via the broadcasting network by dashed arrows.
A service provider is furnished with a set 6 for broadcasting to users A, B (
By way of example, the broadcaster 3 transmits television waves to Internet TVs, associated with the users A, B respectively.
The communication module 1 (
In a first mode of exploitation (
These various steps are detailed hereinbelow in a basic situation (
The files can consist for example of MP3 files (standing for “MPEG1 Audio Layer 3”, audio compression format), GIF images (standing for “Graphics Interchange Format”, format for storing and transferring compressed graphics images) or HTML pages (standing for “HyperText Markup Language”, hypertext scanning language).
In a second step (
In a third step (
In a fourth step (
In a fifth step (
In a sixth step (
According to a second mode of exploitation (
The broadcasting set 6 periodically identifies the users B1, B2, B3 . . . connected in respect of this service 20 (monitoring unit 14) and thus updates the list of users LU (unit for triggering recording 12). It communicates this list of users LU by telebroadcasting via the broadcasting network 5. The communication of the list of users LU is either general, that is to say accessible to the set of users, or accessible only to a set of users who have registered for this communication service 20 with the broadcasting set 6, be they the connected users B1, B2, B3 . . . (users “B”) or other nonconnected users A1, A2, A3 . . . (users “A”). Each nonconnected user A can thus decide whether or not he connects up, as a function of this list—for example if he discovers friends therein.
In an improved version for which the communication service 20 is a forum service, the broadcasting set 6 also broadcasts the content of the discussions in progress in the forum (the service provider can decide which of the forums forms the subject of a broadcast). The users thus have the possibility of following these discussions without connecting up, or of connecting up so as to participate therein.
Number | Date | Country | Kind |
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01/14444 | Nov 2001 | FR | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP02/12287 | 11/4/2002 | WO |