Abstract: A method of transferring communication streams, including establishing a first stream via a first communication path between a first terminal and a second terminal, opening a second communication path between the second terminal and the first terminal, sending to the first terminal, via the second communication path, a request to establish a communication stream between the first terminal and a third terminal via a third communication path, and comparing respective capabilities of the first terminal and the third terminal to determine whether it is possible to establish a communication stream between the first terminal and the third terminal, and in the affirmative, interrupting the first stream and establishing a communication stream, between the first terminal and the third terminal.

Abstract: A method of managing contact lists on a plurality of mobile devices, the mobile devices being connected to a network. The method sensing one or more communications provided by a plurality of broadcast services, the one or more communications including contact information; selecting the contact information of the sensed one or more communications in which a user of a mobile device is interested; adding the selected contact information in a contact list associated with the mobile device of the user; determining contact information that has expired; and removing the expired contact information from the contact list associated with the mobile device of the user.

Abstract: A telecommunications system communicates data packets to and from a mobile terminal in accordance with a mobile internet protocol. The system includes a packet radio network having a first radio access interface and a gateway support node and includes a wireless access network having a second radio access interface and a home agent. The mobile terminal is arranged to connect to one of the packet radio network or the wireless access network and, when connected, to detect which of the packet radio network and the wireless access network the mobile terminal has connected. Upon detection that the mobile terminal is attached to the packet radio network, the mobile terminal and the home agent are arranged so that data packets are transmitted to and from the mobile terminal via the gateway support node in preference to the home agent.

Abstract: A method of communicating between at least one event detector sensor and a collector of event detection data transmitted by the sensor in the form of an event signalling message whose modulation is defined by at least one spreading code. The method comprises the steps implemented by the sensor of, upon detection of an event, generation of data of event detection, of reception of a synchronization message emitted by the collector, the synchronization message comprising a seed for a pseudo-random generation of at least one spreading code and of pseudo-random generation of at least one spreading code on the basis of the seed. The method furthermore comprises a step of emitting an event signalling message whose modulation is defined by the at least one spreading code generated randomly, the event signalling message comprising the event detection data.

Abstract: A method and apparatus are provided for requesting configuration of a terminal connected to a subscriber card that contains at least one application. The terminal is adapted to receive via a second communications interface a response to a request including configuration information of the terminal, to act for at least one application of the subscriber card to determine whether an interface application associated with the at least one application is or is not present in the terminal. The terminal is adapted to send via a first telecommunications interface at least one command for downloading the interface application, if the interface application not present. A configuration method and apparatus are also provided for sending configuration information in response to a request, to receive at least one download command and to transmit it to a remote server, and to update the configuration information, after downloading the interface application specified in the command.

Abstract: A system, a device, and a method for transmitting a signal (11) comprising a preamble and a data frame (13) by preamble sampling in a communications network including a plurality of nodes (1a, 1b), said preamble including a numbered sequence of microframes (19).

Abstract: Disclosed is a system and method for implementing compression coding of audio signals, such as speech signals, using two long-term prediction (LTP) models. The method determines the parameters of a second long-term prediction model on the basis of the parameters of at least one first LTP model. The present invention is aimed at switching from an LTP model with a single coefficient (monotap) to an LTP model with several coefficients, (multitap) and vice versa, as well as at switching between two multitap LTP models. The complexity of the method may be adjusted, especially as a function of a desired compromise between a target complexity and a desired quality. A device for implementing the method according to the invention is, moreover, very useful for multiple codings in cascade (transcodings) or in parallel (multi-codings and multi-mode codings).

Abstract: At least one expired decryption key intended to be used for asymmetrical decryption of encrypted data is recovered in a terminal after generation of a cryptographic encryption key/decryption key pair stored in a cryptographic medium such as a microchip card. The expired decryption key is stored in a database accessible to a user of the terminal and encrypted beforehand as a function of the new generated encryption key. In the terminal connected to the cryptographic medium, the encrypted expired encryption key is decrypted as a function of the decryption key stored in the cryptographic medium so that the encrypted data is decrypted as a function of the thus decrypted expired decryption key.

Abstract: The invention relates to a method for transmitting a clock rate on a network link, seat of a speed timing signal (DR), consisting of at least synchronizing (A), at an input point (I) of this network, this speed timing signal with a reference external clock rate (ESR) for generating a synchronized speed timing signal (SDR) propagating on the network, and of extracting, at an output point (O) of the network, the reference external clock rate (ESR) from the synchronized speed timing signal (SDR) for utilization. The invention is for providing networks that are seats of a speed timing signal such as FastEthernet and Gigabit Ethernet networks or of higher speed Ethernet networks.

Abstract: A method is provided for authenticating a first entity and a second entity at a third entity. The first and third entities share a first secret key, and the second and third entities share a second secret key. The method includes steps of: dispatching by the third entity to the first entity of a challenge, calculation by the first entity, using the first secret key, of an authentication value; dispatching by the first entity to the second entity the authentication value, calculation by the second entity, using the second secret key, of an authentication response; dispatching by the second entity to the third entity of the authentication response; calculation by the third entity of an expected authentication response; and comparison of the authentication response received with the expected calculated authentication response.

Abstract: Disclosed is a periodic broadcasting of data packets in an ad hoc network formed by a plurality of mobile nodes that can move along traffic lanes forming junctions and can be located. A data packet is broadcast by a broadcaster node elected from a set of candidate nodes at each junction. The broadcaster node is elected in a decentralized manner at each candidate node by comparing the estimated travel time to reach the center of the junction with a particular reference time period between two successive broadcasts.

Abstract: A method and apparatus are provided for processing data. The method includes a step of receiving, during a first communication session established with said server, a request formulated by a first user defining at least one processing operation to be executed on first data, and a step of executing said processing operation on said first data, during a second communication session established with said server after said first session for a second user. The step of executing is applied on condition that the second user has been authenticated via a strong authentication method during the second session and that a relationship between the first and second users has been verified.

Abstract: The invention relates to cryptographic method for the anonymous authentication and the identification of a user entity (Ui) respectively by a checking entity (D) and an identifying entity (O). According to this method, the checking entity (D) receives (130) from the user entity (U1) at least one first signature (?) and a first message (m), and checks (140) the first signature (?) using the first message (m) in order to authenticate the user (U), and the identifying entity (O) receives (150) from the checking entity (D) a second signature (??) connected to the first signature (?) and identifies (160) the user using the second signature and a secret key particular thereto. The invention also relates to a cryptographic system for implementing said method.

Abstract: A method is provided for transmission, by a server in a communication network, of a multimedia message, which includes a video sequence, to a remote terminal. The method includes detecting the video sequence in the message by the server, wherein the method includes the following additional steps: coding by the server of the video sequence in a scalable stream including a base layer and one or more refinement layers, when the video sequence is not already coded in such a stream, storage of at least one of the refinement layers in a storage server, and sending the base layer and of a link to recover the at least one duly stored refinement layer to the remote terminal.

Abstract: An access point (30) for controlling routing in a hybrid network includes a topology table including routes to nodes registered on request with the access point and routes to nodes that have responded to an advertisement message broadcast by this access point (30) only to nodes having a predetermined status and means for selecting a route from all possible routes between a source node (S) and a destination node (D) determined from the above-mentioned response messages. Only nodes that have not contributed to routing a registration request respond to the advertisement message.

Abstract: The invention concerns data processing by passage between different subband domains, of a first number L to a second number M of subband components. After determining a third number K, least common multiple between the first number L and the second number M: a) if K is different from L, it consists in arranging in blocs, by a serial/parallel conversion, an input vector X(z) to, obtain p2 polyphase component vectors (p2=KL); b) applying a square matrix filtering T(z) of dimensions K×K, to the p2 polyphase component vectors to obtain p1 polyphase component vectors for forming an output vector Y(z), with p1=K/M, and if the third number K is different from the second number M, providing a block arrangement by a parallel/serial conversion to obtain the output vector Y(z).

Abstract: The invention relates to multimedia page editing via a terminal. A server supplies multimedia pages to the terminal in the form of object arrangement commands for objects identified by parameters. A method according to the invention comprises a preliminary step wherein the server transmits all or part of the object-related parameters as well as a store command, whereby the parameters are stored in a terminal memory; and a main step wherein the server transmits a simple parameter retrieval command for editing at least one multimedia page in which the above-mentioned object appears.

Abstract: A method of redirecting a request (R_act) sent by a terminal equipment (STB) for control of a data stream (FL0) broadcast by a source (HE) in a telecommunications network. The method comprises: on reception of a request to control a data stream sent by a terminal equipment (STB), a step of obtaining info cation representing a current data stream control capacity for a plurality (11) of broadcast servers; a step of selecting, with the aid of the above information, a server (NTSSk0) from said plurality of servers able to control said data stream (FL0) broadcast by the source, a step of sending a request to capture this data stream to the selected server if it is not already capturing the data stream for at least one other terminal equipment; and a step of redirecting the control request to the selected server.

Abstract: A system for managing at least one service access authentication data item, including a device for accessing at least one service. The system also includes a mobile terminal including a mechanism managing the authentication data item and an identifier of the service, a communication interface between the access device and the management mechanism, and a software interface configured to determine the service identifier and to utilize the management mechanism, via the communication interface, on access to the service. The system for example is applicable to website access authentication services.

Abstract: A method and apparatus are provided for controlling use of content protected with a digital rights management license which contains conditions for the use. When a request to use the content is received by a client agent controlling the use of the content, the conditions of use are checked. Within this check, a determination is made that the use of the content is conditional upon an obligation to perform a parental control operation on the content. A request for authorization to use the content is then transmitted from the controlling client agent to a parental control management module. After a parental control operation has been performed on the content by the parental control management module, the agent receives a result of the parental control operation. If the result is negative, a denial of use of the content is notified in response to the request to use the content.