multicast media technologies inc.

multicast media technologies inc.

Understanding of IPTV, IPTV technology options detailed explanation of the term

IPTV The interactive network TV, is a use of broadband cable networks, set the Internet, multimedia, communications and other technology, and to home users, including Digital TV A variety of interactive services including brand-new technology. Users at home can enjoy IPTV services in two ways: (1) computer, and (2) Network STB + Normal TV). It is well adapted to the rapid development of today’s Internet trends, the full and effective use of network resources. IPTV is different from traditional analog cable, digital television is also different from the classic. Because the traditional and classic digital TV system has frequency division, time, one-way Broadcasting And so on; although compared to the classic analog TV digital television, many technological innovations, but only the signal is changed, but did not touch the contents of the mode of transmission media. Key Technology

IPTV Key Technology IPTV IPTV is the use of computer or set-top box receiver + TV completed Video on Demand Programming, video broadcasting and Internet surfing functions. It uses highly efficient video compression technology to enable video streaming bandwidth 800Kb / s can be close to the television ratings DVD (usually DVD video stream bandwidth needs 3Mb / s), carried out on the next class of business, such as video on the Internet Live video Long-range real video on demand, production and other sources in terms of programming, has a strong advantage, is a new technical concepts.

The problems of traditional television is the traditional one-way broadcast television, which greatly limits the audience and the interaction between television service provider, also limits program of personalization and real-time. If a viewer of the content being broadcast all the channels are not interested, he (she) will have no choice. Not only for the viewers is a loss of time, on cable television service provider is also a wastage of resources. In addition, the current implementation of the specific content of programs broadcast in a specific period of time for many viewers is inconvenient. One night’s audience might want to watch the news sometime in the morning, and one ready to take a particular train’s passengers want to see a home before the football game scheduled for the evening broadcast video. Now it seems impossible.

IPTV features and applications IPTV is the use of broadband cable network infrastructure to TV as the main terminal for domestic electrical appliances, to provide through the Internet protocol, including a variety of television programs, including digital media services. Characterized in:

1) Users can get high quality (near DVD level) digital media services.

2) user can have a very wide freedom in choosing the site to provide broadband IP online video programming.

3) realization of media and media consumers substantive interaction. IPTV broadcast platform will be used in a new generation of home digital media, typical of the terminal, it can configure the user’s selection features a variety of multimedia services, including digital television, video IP phones, DVD / V CD Play, visit the Internet, e-mail, and a variety of online information consulting, entertainment, education and business functions.

4) for network developers and program providers to provide a broad emerging markets. At present, China’s telecommunications industry is growing rapidly and users of information services have become increasingly demanding, especially in broadband video information. Can say that China has basically met the conditions to develop IPTV technology and market conditions.

General, IPTV and digital television, both points of similarity and difference. Fiberhome Networks technical experts from the following described similarities and differences between the two.

1. Technology System IPTV system, also known as interactive television, its architecture includes Streaming Media Service, program editing, storage and authentication and accounting, and other subsystems, the main storage and transmission of the content of which is the core of MP-4 as the encoding of streaming media files, based on IP network transmission, usually set at the edge of content distribution service node, the configuration stream media services and storage devices, IP set-top box user terminal can be + TV, can also be a PC.

Cable digital television broadcasting network to the HFC networks, and traditional analog cable TV network architecture, the same as carried out in case of new interactive services (eg VOD), network system will be different. Cable Digital TV VOD system includes VOD service, program editing, storage and authentication and accounting system, the main storage and transmission of content is MP-2TS streams, using IPOVERDWDM technology transfer based on DVDIP fiber optic network, and IPTV’s distributed architecture is different Cable Digital TV VOD system uses a centralized services architecture, in the HFC does not need to configure the front-end points for content storage and distribution of the video server, only need to place the receiver and the GAM modulated DWDM equipment can greatly reduce the system operating costs and management complexity, the user terminal is a digital set-top box + TV. China has basically formed the current digital TV industry chain, there has been a large number of digital TV set-top box manufacturers, front-end equipment manufacturers, systems integrators.

2. Business IPTV interactive features are very flexible, because the interaction with the IP network symmetry inherent advantages, its program in the net, can use broadcast, multicast, unicast a variety of published methods. Can be very flexible implementation of electronic menus, program reservation, real-time fast forward, rewind, terminal account and billing management, programming and other functions. In addition to other content-based Inter net business can be started, such as online games, e-mail, electronic financial transactions.

Cable Digital TV with broadcast, video on demand must be achieved, if the original two-way HFC networks transform radio. Under normal circumstances, only the opening of the live interactive information channel. If you want to support video-on-demand digital TV, we also enter the IP network through CALBEMODEM to support, in fact IPTV, Hangzhou is the model number of IPTV systems. Judging from the provision of content services, digital cable TV as IPTV.

3. Key Benefits IPTV’s main selling point is the interaction, and the Inter net business expansion. IPTV also can be very easy to television services and Internet browsing, e-mail, and a variety of online information consulting, entertainment, education and business functions together in the future competition in a dominant position.

Main selling point of digital high-definition TV image quality.

4. User groups

Both market users
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