Abstract: Examples disclose a method for processing multimedia streams emitted by terminals participating to a conference and encapsulated according to an Internet protocol to the session server that distributes the multimedia streams to the receiver terminals participating to the conference, the method comprising: identifying the encoding codec implemented by each of the terminals participating to the conference; and when the session server receives a plurality of streams originating from a corresponding plurality of emitter terminals participating to the conference, decoding data packets of the plurality of streams received from the emitter terminals; mixing received stream data packets so that a mixed stream is transmitted to the receiver terminals; and encoding in one single step data packets of the mixed stream for each group of receiver terminals implementing the same encoding/decoding codec.

Abstract: Examples set forth a method, implemented by a terminal, for sending an audio stream from said terminal participating in a conference session in which a plurality of third-party terminals are further participating; wherein data packets of the audio streams transmitted by said terminal and said third-party terminals are encapsulated according to an internet protocol, and wherein an audio stream transmitted by each of said terminal and said third-party terminals is sent to a session server which distributes the audio stream to the other terminals participating in the conference, the method comprising: determining at least one audio parameter of the audio stream acquired by said terminal, sending or not sending the audio stream to the session server as a function of a value of the at least one audio parameter.

Abstract: The invention relates to locating mobile terminals comprising a plurality of recording servers, adapted to communicate with recorded mobile terminals, for communication relays, with the recording servers communicating between them and with location servers via an extended network and organized in a hierarchical tree of parent servers and child servers. Each location server comprises a database of mobile terminals constituted of a plurality of mobile terminal records, each of said mobile terminal records comprising address data of a mobile terminal recorded with a descending recording server of said location server in the hierarchical tree.

Abstract: The invention relates to a device for the distributed mixing of data streams, including a main multimedia server (10) capable of receiving at least one incoming data stream (A, B, C) and of outputting at least one outgoing data stream (A?, B?, C?), and at least one secondary multimedia server (20) capable of receiving at least one incoming data stream (D, E, F) and of outputting at least one outgoing data stream (D?, E?, F?), the main multimedia server including a selection module (11) arranged so as to select a plurality of data streams (A, B, E, F) from the incoming data streams and a global mixing module (13) arranged so as to mix the selected data streams in order to obtain an aggregated stream (S), and the secondary multimedia server including a local mixing module (21) arranged so as to mix at least two incoming data streams (E, F) received by the secondary multimedia server and selected by the selection module of the main multimedia server in order to obtain an incoming intermediate stream (T) capable

Abstract: The invention relates to locating mobile terminals comprising a plurality of recording servers, adapted to communicate with recorded mobile terminals, for communication relays, with the recording servers communicating between them and with location servers via an extended network and organised in a hierarchical tree of parent servers and child servers. Each location server comprises a database of mobile terminals constituted of a plurality of mobile terminal records, each of said mobile terminal records comprising address data of a mobile terminal recorded with a descending recording server of said location server in the hierarchical tree.

Abstract: The invention relates to a device for the distributed mixing of data streams, including a main multimedia server (10) capable of receiving at least one incoming data stream (A, B, C) and of outputting at least one outgoing data stream (A?, B?, C?), and at least one secondary multimedia server (20) capable of receiving at least one incoming data stream (D, E, F) and of outputting at least one outgoing data stream (D?, E?, F?), the main multimedia server including a selection module (11) arranged so as to select a plurality of data streams (A, B, E, F) from the incoming data streams and a global mixing module (13) arranged so as to mix the selected data streams in order to obtain an aggregated stream (S), and the secondary multimedia server including a local mixing module (21) arranged so as to mix at least two incoming data streams (E, F) received by the secondary multimedia server and selected by the selection module of the main multimedia server in order to obtain an incoming intermediate stream (T) capable

Abstract: The invention relates to a method for storing a portion of a compressed video stream, said compressed video stream comprising a series of compressed key images between which are inserted intermediate frames comprising at least the encoding of differences between an uncompressed intermediate image and the key image immediately preceding same, said method comprising: acquiring, in real time, the compressed video stream; temporarily storing, without decompression, the acquired compressed video stream, said temporary storage comprising at least the last compressed key image received and the subsequent intermediate frames; upon receipt of a permanent storage start event at a given instant: reconstructing a compressed key image corresponding to said given instant starting from the last key image received and from the subsequent intermediate frames; and storing the portion of the video stream starting with the reconstructed compressed key image.