HDTV DTV HDTV ONE WAY BROADCAST TRANSMISSION SYSTEM COMBINED WITH DTV

摘要

The present invention relates to a broadcast transmission system that provides a two-way DTV for one-way broadcasting of HDTV, and the technical problem to be solved is a customer in the house without installing a set-top box in a broadcasting service device for transmitting HDTV broadcasting using a coaxial network. The present invention is to provide a broadcast transmission system in which DTV is combined with one-way broadcasting of HDTV that enables viewing of directly selected VOD broadcasting. In accordance with the present invention, a broadcast transmission system that provides a two-way DTV for one-way broadcasting of HDTV, installs a DTV RF converting device in a common distribution panel, transmits the VOD broadcasting service to the home by specifying only the channel number as it is for general broadcasting of RF signals. When a customer in the applied home requests a VOD broadcast service to the stream server using a customer terminal, the DTV RF converting device transmits a security signal modified to a specific channel to the dongle lock key part connected to the home TV, and the dongle lock key part By releasing the modified security signal in the, it is characterized in that the VOD broadcast can be viewed without using a set-top box at home.