| 摘要 |
The invention relates to a video projection device (VP) comprising a module (18) for utilizing a video signal (SV), able to transmit said video signal (SV) to a projection optic (21) so as to project said video signal onto a vertical surface (Ec), and an audio processing module (19) linked to an emitter module (16) for transmitting by wireless communication, a synchronous audio signal (SA) to one or more audio broadcasting devices (DA), said video projection device (VP) being characterized in that the video projection device (VP) does not have any connection facility dedicated to the transmission of data and comprises just a single cable (8) for hooking up to an electrical distribution network; and in that it furthermore comprises; a module (13) for power-line communication (PLC) of data, which is able to be paired with a module which is compatible with an item of Internet connection equipment (Box-S2), so as to allow said video projection device to be connected to a first remote server in order to download a multimedia content to be projected, and a processing module (17) able to separate the audio signal (SA) and video signal (SV) and to address the video signal (SV) arising from the multimedia content to said video utilization module (18) and the audio signal (SA) to said audio processing module (19) and in that the video projection device is connected, via the item of Internet connection equipment, to a remote server (SD) able to verify, on request, whether said video projection device is permitted to operate and to send a signal blocking operation thereof according to the result of the verificatory checks. |
