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IPTV Internet Protocol Television. (Interactive Internet TV), the new high-speed interactive media and one of the various IP-based Internet applications have appeared one after another.

IPTV Internet Protocol Television

IPTV Internet Protocol Television

IPTV is the most eye-catching Internet application. It uses the infrastructure of a broadband network, uses computers or televisions as well as network set-top boxes, mobile phones, etc. as the main terminal equipment, integrates a variety of technologies such as the Internet, multimedia, and next-generation communication networks, and provides home users through Internet Protocol (IP) with a variety of digital interactive multimedia services, including digital television.

Need for IPTV

Since the beginning of the 21st century, with the development and application of broadband network technology, streaming media technology, codec technology, information encryption technology, chips, and storage interaction technology, it has become a reality to provide high-speed television services. The Internet. Users only need a computer. Can enjoy IPTV service.

IPTV and the development of broadband networks

Internet-based, IPTV is a personalized and interactive form of multimedia service that can provide services such as on-demand services, broadcasts, video communications, short messages, MMS, information services, and games.

As one of the important services of the next-generation network (NGN), it belongs to the category of triple-play voice, data, and video services. Its basic definition should be a broadband network service, based on IP technology and dependent on the TCP/IP protocol. Interactive broadcast or on-demand television services operating over the Internet.

IPTV Services

This application combines the three areas of television, communication, and PC. It not only can provide users with broadband services such as digital TV, VOD on demand, and video recording, but also can browse the Internet, send and receive emails, and view various information online. The functions of entertainment and education are combined to achieve real interaction.

From the perspective of IP TV definition, IPTV belongs to the transmission, application, and development of digital television and is an advanced form of digital television. It is the product of the integration of today's Internet and TV networks. It covers all meanings of digital TV and contains more media formats, from traditional audio and video, text and image media formats to Flash graphics, interactive media to streaming media formats, including services that can provide all media formats that the Internet can provide at the same time. It is precise because IPTV uses the Internet as the main transmission network, its development is closely related to the development of broadband networks, and has become the largest entry point for the so-called "three networks".

IPTV technical analysis

The IPTV program broadcasting service system realizes the broadcasting and transmission of streaming media data of IPTV programs, including media streaming, multicasting, unicasting, etc. supporting IP protocol, and it needs support for streaming media servers and streaming media player software. The streaming media server broadcasts the streaming media data of the encrypted IPTV program to the transmission network under the control of the user management system. At the same time, the IP program broadcast service system needs to authenticate the user or user terminal and send it from the DRM authorization key server to the authenticated server. The user or the user's user terminal transmits the ORM authorization key so that the user can decrypt and play the received encrypted IPTV program streaming media data.

IPTV management system

IP transmission network, program source, and user group are the basis for the survival and development of IPTV. The front-end IPTV management system includes a program source content management system, user management system, program broadcast and transmission control management system, network security supervision system, etc.

Additional Features

IPTV involves digital video encoding and decoding technology, media asset management technology, media streaming technology, content delivery network (CDN/VDN) technology, IP multicast technology ( multicast), digital rights management (DRM), and user authentication and authorization management. Charging system technology, IPTV set-top boxes and middleware technology, IP broadband access network technology such as LAN/ADSLCableModem, and various software technologies related to business applications. At the same time, a variety of streaming media formats, digital compression standards such as MPEG-2, MPEG-4, H.264/AVC, AVS, etc., and multiple protocols such as RTP, KTCP, RTSP, etc. Used to realize network transmission video stream broadcast, on-demand, multicast, and other interactive control functions. It can be seen that the development of IPTV technology and applications is closely related to the development of broadband networks.

IPTV and the development of industries

IPTV can include three main industries. For the telecommunications industry, IPTV is a typical business in the future and has broad industry development prospects. The value-added IPTV approach to video services has become a choice for large telecom operators to pursue sustainable development. Relying only on Internet services, due to their lack of content and low profitability, they are making full use of the advantages of the telecom broadband network to intervene and develop.

The IPTV business has become the original driving force behind industry changes. Software vendors including Microsoft are optimistic about the development of IPTV and the help of powerful equipment suppliers has also increased the confidence and determination of telecom operators to get involved in IPTV. New wired and wireless broadband transmission technologies and high-efficiency digital video compression technologies such as H.264/AVC have gradually matured and have also laid a practical foundation for the operation of IPTV. Telecommunications companies use ADSL technology to broadcast TV programs and Internet access services over IP, that is, to provide IPTV services over broadband networks.