MICROWAVE INTERACTIVE DISTRIBUTION INFORMATION SYSTEM (MIDIS)

摘要

The inventive microwave interactive distribution information system (MIDIS) comprises a central station (1) provided with a directional antenna (7), a head-end receiving station of a return channel (15) and a plurality user stations (23) each of them being provided with an aerial (27) which is connected to the transmitter of the return channel. In addition, the central station (1) comprises at least one data transmitting channel of a forward channel (2) which comprises the driver (3) thereof, at least one transmitting channel of an analog broadcasting (8), the transmitting channel of a digital broadcasting (11), receiving sector antennas of the return channel (18) the number of which is defined by the overlapping azimuth directional characteristics thereof, said overlap can be equal to 360 DEG , at least one access server of the return channel (20) which is connected to an information service centre (21) consisting of service servers incorporated in a local computer network connected to a router (22) and to at least one access server of the return channel (20). In addition, each user station (23) comprises a user station server connected to a computer (33), a digital-to-analog tuner (31) and television receiver (32).