PURPOSE: To enable many audiences to simultaneously participate in this interactive television(TV) broadcasting system, to easily attain a quick response and to attain the execution of a video game.
CONSTITUTION: A TV receiver in a service zone 1 receives a broadcasting wave a1 obtained by synthesizing a video signal transmitted from a broadcasting station 4 and additional information related to the video signal converted into a character broadcasting signal. In the case of executing interactive TV broadcasting, viewer data are outputted from a control device 102 to a domestic slave station 103 and transmitted to a radio equipment 11 in a street base station 10 through a time-division multiplex radio line (b). The transmitted data are multiplexed with other viewer data by a multiplexing device 12 and the multiplexed data are transmitted to a local exchange 3. The local exchange 3 separates/totalizes data based upon a subscriber's code and broadcasting station code added to the viewer data and transmits the separated/totalized result to the broadcasting station 4.
MATSUI HIROAKI
IRIE NORIKO
SUDO SHIGEYUKI
UKAI MAKOTO