Abstract: A method is provided for the restitution of multimedia data transmitted by a gateway to a communications terminal via a first transmission channel. The method includes the following steps: interrogating the terminal via the gateway about its capabilities of restituting the multimedia data; transmitting, to the gateway via the terminal, a list of commands that it is capable of executing; transmitting, via the gateway, multimedia data with the aid of at least one series of commands that is part of the list of commands that can be executed by the terminal, and restituting, in this terminal, the multimedia data with the aid of the received command.

Abstract: The invention concerns a method for transmitting a multicast stream in a data exchange network, at an access point (AP). It consists in analyzing (A) the multicast stream by data frames to detect the multicast address at the link (MUAx, x=2) of the multicast stream {MUF{T[MUA]}), substituting (B) in each frame at the multicast address (MUAx) at the link a unicast address (UNAy) of a potential receiver terminal (Ty) of the multicast stream to generate a substituted multicast frame (T[UNAy]), transmitting (C) instead of the multicast stream at least one unicast stream, a succession of substituted multicast frames to the terminal at the unicast address at the link. This allows taking advantage of the acknowledgement mechanisms of frames of the transmission of unicast stream for substituted multicast frames. The invention is applicable to transmission of multicast stream in WiFi or CPL network.

Abstract: A method is provided for the restitution of multimedia data transmitted by a gateway to a communications terminal via a first transmission channel. The method includes the following steps: interrogating the terminal via the gateway about its capabilities of restituting the multimedia data; transmitting, to the gateway via the terminal, a list of commands that it is capable of executing; transmitting, via the gateway, multimedia data with the aid of at least one series of commands that is part of the list of commands that can be executed by the terminal, and restituting, in this terminal, the multimedia data with the aid of the received command.

Abstract: The invention concerns a method for transmitting a multicast stream in a data exchange network, at an access point (AP). It consists in analyzing (A) the multicast stream by data frames to detect the multicast address at the link (MUAx, x=2) of the multicast stream {MUF{T[MUA]}), substituting (B) in each frame at the multicast address (MUAx) at the link a unicast address (UNAy) of a potential receiver terminal (Ty) of the multicast stream to generate a substituted multicast frame (T[UNAy]), transmitting (C) instead of the multicast stream at least one unicast stream, a succession of substituted multicast frames to the terminal at the unicast address at the link. This allows taking advantage of the acknowledgement mechanisms of frames of the transmission of unicast stream for substituted multicast frames. The invention is applicable to transmission of multicast stream in WiFi or CPL network.

Abstract: This information retransmission device (2) includes elements (21) for exchanging information with a remote server (4) via a telecommunications network (6). It is characterized in that it further includes automatic elements (23) for detecting the presence of a nearby output device (8) and for retransmitting information received from the remote server (4) from the device (2) to the output device (8) that has been detected nearby.