IPTV is a new technology that uses broadband cable television network, integrates Internet, multimedia, communication and other technologies, and provides various interactive services including digital TV to home users. Users can enjoy IPTV service at home. IPTV is not only different from traditional analog cable TV, but also different from classic digital TV, because both traditional analog TV and classic digital TV have the characteristics of frequency division system, timing, one-way broadcasting and so on. Although classic digital TV has many technical innovations compared to analog TV, it only changes the form of the signal, but does not touch the way the media content is transmitted
Its system structure mainly includes streaming media services, program editing, storage, authentication and billing subsystems, the main storage and transmission content is MPEG-2/4 standard as the coding core of the streaming media files, based on IP network transmission, usually to set up content distribution service nodes, configure streaming media services and storage devices, the user terminal can be IP set-top box + TV. It can also be a PC. IPTV can make use of the infrastructure of cable television network, take home TV set as the main terminal equipment, and provide a variety of digital media services including TV programs through Internet protocol.
The main characteristics of IPTV are shown in the following four aspects:
(1) Hosted on the IP network, able to provide users with high-quality digital media information services;
(2) Achieve substantial interaction between media providers and media consumers, and users can interact and on-demand their favorite content;
(3)IPTV can provide real-time and non-real-time services, IP technology and personalized on-demand services, so that users can obtain real-time and non-real-time media programs provided by broadband IP network on demand;
(4) Users can freely choose the video programs provided by various websites on the broadband IP network.
The above is the “IPTV” knowledge explanation brought by Shenzhen HDV Photoelectric Technology Co., LTD. The communication products produced by the company cover:
Module class: Optical fiber module, Ethernet module, optical fiber transceiver module, optical fiber access module, SSFP optical module, SFP optical module and so on.
ONU class: Communication ONU, AC ONU, Optical Fiber ONU, CATV ONU, GPON ONU, XPON ONU and so on.
OLT class: OLT switch, GPON OLT, XPON OLT, Communication OLT, etc.
The above products can provide support for different network scenarios. For the above products, it is paired with a professional and strong R & D team to provide technical support for customers, and a thoughtful and professional business team to provide quality service for customers in the early consultation and later work.