SYSTEM FOR AUTOMATICALLY DETECTING AND DISPLAYING A DISASTER ALARM FOR FORCIBLY TURNING AN STB ON THROUGH A BROADCASTING SIGNAL OR A DATA SIGNAL

摘要

A kind of purpose: system, for automatically detecting and showing a disaster alarm, it is provided on through a broadcast singal or a data-signal and forcibly turns a STB (SetTop boxes) and information is provided, a unforeseen accident is generated, thus when rapidly processing situation. Construction: a regime part (310) is if execute the channel decoding of a baseband signal from one data bit stream of one (intermediate frequency) and reproduction of output. One TS (transport stream) decoder (111) separation and from output audio, video and the subsidiary's data in the data bit stream of reproduction. Separated subsidiary's data is applied to a control mechanism (112). At the beginning of disaster alarm broadcast, data are detected TS decoders, and control mechanism checks whether that time/area information etc. meets each other. When time/area information etc. meets each other, control mechanism opens the power of STB and exports a volume control signal. It is a kind of OSG data formats that character information output is broadcasted in one alarm, and input is to an OSG mixers (340) and exports to a video output (350).