Electronic device and system for the point-multipoint transmission of a digital signal over a radio communication network

An electronic device for point-to-multipoint transmission of a digital signal over a radio communication network, the electronic device comprising:

• a transmitter-receiver (3) configured to receive a radio-frequency input digital signal (S_DRF_I) and generate therefrom a baseband digital signal (S_DBB_I);
• a digital signal processor (9) comprising a receiving module (9-1), an input buffer (12), an audio decoder module (13) and an output buffer (15), the receiving module being configured to:
• receive the baseband digital signal and perform a duplication (11) of the baseband digital signal into a duplicated baseband input digital signal (S_DD2);
• store the received baseband digital signal (S_DD1) and the duplicated baseband input digital signal (S_DD2) in the input buffer (12) and in the output buffer (15), respectively;
• read the received baseband digital signal from the input buffer (12), perform a decompression on the received baseband digital signal (S DD1), process the received baseband digital signal read from the input buffer (12) and generate therefrom a digital driving signal (S_PL_SPKR_D);
• read the duplicated baseband input digital signal from the output buffer (15) and generate therefrom a duplicated baseband output digital signal (S1_DBB_O);
• wherein the transmitter-receiver (3) is further configured to receive the duplicated baseband output digital signal (S1 DBB 0) and generate therefrom a radio-frequency output digital signal (S_DRF_O),
• the electronic device further comprising:
• an audio distribution device and/or an image and/or data display device;
• an input/output interface (7) configured to receive the digital driving signal and generate therefrom a second driving signal (S_PL_SPKR_A) for driving the audio distribution device and/or the image and/or data display device;
• a microcontroller (4) configured to implement a reservation protocol for unidirectional audio and/or data communication;
• wherein the transmitter-receiver is configured to receive the radio-frequency input digital signal (S_DRF_I) on the basis of Bluetooth® technology and to transmit the radio-frequency output digital signal (S_DRF_O) on the basis of Bluetooth® technology,
• and wherein the microcontroller (4) is configured to realize a unidirectional asynchronous packet data link.