DIGITAL BROADCAST SYSTEM, DIGITAL BROADCAST STUDIO SYSTEM AND DIGITAL BROADCAST TRANSMISSION STATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To reserve a transmission line used to transmit control information when various devices controlled from a studio are installed in a transmission station in the digital broadcast system. ;SOLUTION: A time division data transmitter 11 in a studio 10 transmits control information of various devices installed in a transmission station 20 to the transmission station 20, in time division with a digital information signal meant to be sent originally. A data demultiplexer 21 in the transmission station 20 demultiplexes the received digital transmission signal into the control information and the digital information signal meant to be sent originally. Then digital modulators 22A, 22B that apply modulation to the demultiplexed signal information signal and digital transmitters 23A, 23B that transmit the modulation output are operated according to the demultiplexed control information.;COPYRIGHT: (C)2000,JPO