(1) Digital TV broadcasting (including digital audio broadcasting)
Provide high-quality standard definition digital TV programs, including local real-time compression coding programs and satellite digital program forwarding, quasi-video-on-demand (NVOD), quasi-audio-on-demand (NAOD) and stereo music channels, as well as encrypted pay TV services.
(2) Quasi-interactive TV
Data information broadcasting technology is realized by interactive application software, and the information is pushed to the set-top box at the user end in the form of illustrated interface.
The functional services available include multimedia magazines, EPG, information consultation, electronic games, etc. Among them, multimedia magazines can provide rich news information, entertainment news, lottery information, book world and so on; The TV program menu can provide the time query and content introduction of digital TV programs in a week; Information consultation provides real-time stock market information, weather forecast, etc. Electronic games can provide educational games, sports games and children's games.
At the same time, according to the content, it can be expanded into real estate square, life service, leisure and entertainment, talent market, music store, pop music, music audio-visual world and other columns.
(3) Two-way interactive TV
By adding two-way communication equipment on the technical platform, the real information interaction is realized by using the set-top box with built-in CableModem. Realize TV Internet access, TV e-mail, pay digital TV (PPV and IPPV) and other services, and at the same time can be extended to TV services, online games, distance education, online quiz, home banking, video on demand and so on. And in the future, it will be integrated with the IP phone function to truly realize the triple play service.
(4) TV MMS
Television MMS is the first very important value-added project in the development of digital video in China. It sends multimedia messages (photos and words) through cable TV network, Internet or telecommunication network, and users can receive these messages whether they use TV, computer or mobile phone. It allows anyone to receive all kinds of information at any time and any place in the first time. Especially for the elderly who don't use mobile phones or computers very much, while enjoying colorful digital TV programs, they can also receive video information or blessing information of their children working or playing around the world through TV sets, and their happiness is self-evident.