20150055933 | ADVERTISEMENT SYSTEM - An advertisement system includes a display device, a storage media saving video and audio data and a controller. The controller includes a memory unit in which an operation system and application programs are installed, an output interface connected to the display device, at least one input interface connected to the storage media; and a processor processing the video and audio data sent by the application programs installed in the memory unit and converting the video and audio data to video and audio signals which are sent to the display device via the output interface to display video and audio advertisements, wherein the operation system is Android operation system. | 02-26-2015 |