What is IPTV? What's the use of IPTV?

IPTV is interactive network TV, which is a new technology which utilizes broadband network, integrates Internet, multimedia and communication technology to provide home users with a variety of interactive services including digital TV. Users can enjoy three different ways at home

　　IPTV Services

1, computer

2, Network set-top box + ordinary TV

3, Mobile Equipment (mobile phone, flat, etc.)

It can adapt well to the trend of the rapid development of network, and make full use of network resources. IPTV is different from the traditional analog cable TV, but also different from the classic digital TV. Because the traditional and classic digital TV has the characteristics of frequency division, timing, one-way broadcast and so on, although the classical digital TV has many technological innovations relative to the analog TV, but only the change of the signal form, has not touched the media content transmission way.

　　Key Technologies of IPTV

IPTV is the use of computer or set-top box + TV to complete the reception of video-on-demand programs, video broadcasting and Internet surfing functions. It uses the high efficiency video compression technology, so that the video streaming bandwidth in the 800kb/s can have close to the DVD's viewing effect (usually DVD video streaming bandwidth needs 3mb/s), for the future development of video services such as video live on the internet, long-distance real video on demand, program source production, etc., have a strong advantage , is a new concept of technology.

The problem of traditional TV broadcasting is that the traditional TV is a one-way broadcast way, it greatly restricts the interaction between TV viewers and TV service providers, and also restricts the individuation and immediacy of the program. If a TV audience is not interested in the content of all the channels being broadcast, he or she will have no choice. This is not only a time loss for the television audience, but also a waste of resources for cable TV service providers. In addition, the implementation of specific content of the program in a specific time period to play for many viewers is not convenient. A night-shift audience may want to watch the news sometime in the wee hours, while a passenger who is ready to take a train wants to watch a video of a football match scheduled to be aired in the evening before leaving. Now, it seems impossible.

　　IPTV Features

IPTV is the use of broadband cable network infrastructure, with home TV as the main terminal appliances, through the Internet Protocol to provide a variety of digital media services, including television. The characteristics of the performance in:

1, users can get High-quality (close to the DVD level) digital media services.

2, users can have a very wide range of freedom to choose the Broadband IP Web site to provide video programs.

3. To achieve substantive interaction between media providers and media consumers. IPTV using the playback platform will be a new generation of home numbers

Typical media terminal, it can configure a variety of multimedia service functions according to the user's choice, including digital TV program, visual IP Phone, DVD/VCD play, Internet tour, email, and a variety of online information consulting, entertainment, education and business functions.

4 provides a wide range of emerging markets for network developers and program providers. At present, China's telecommunications industry is developing rapidly, the user's demand for information services is more and more high, especially the broadband video information. It can be said that China has basically developed the technical conditions and market conditions for IPTV vigorously.