SARFT du Hbc Deputy Chief Engineer was added that "terrestrial digital TV standard is not a recommendation but national mandatory standards, mandatory standards mean, you can't use other standards, can only be used in this standard, in the course of a year to transition to national standards. ”
This is the State leadership of the latest statement, also means that existing Tsinghua University, Shanghai Jiaotong University, radio and Television Academy of Sciences, the fate of the three options to be announced.
Terrestrial digital TV standards recently enacted
Deputy Director Zhang Haitao revealed the State, after years of efforts, the terrestrial digital TV standards have been identified, and will soon be made public, this indicates that China's broadcasting digitization from cable TV penetration, steering to push for a new phase.
Cable television transmission standard involves TV, DVD player, and a series of industry chain, is considered a very important leader of standards. Zhang Haitao also said that many cable TV digital standards are developed, now only one standard is our terrestrial television standards have been adopted, the standards promulgated marks the broadcasting digital access to comprehensive promotion stage, be said to be a very big things.
The State Deputy Chief Engineer du baichuan also revealed that China's DTTB promulgated, terrestrial digital TV digital frequency plan completed and fully under way on the basis of the pilot.
12 years of research and development process
The State Deputy Chief Engineer du baichuan details the terrestrial digital TV transmission standard for the long-term planning process, and that now online some say very inaccurate, the following history is largely accurate.
Du baichuan revealed that, in 1994, the national science and Technology Commission launches high definition TV project, determine first developed terrestrial digital high-definition television transmission standard, and then start the chip and receiver industrialization development two-step strategy and drafted 8MHzVSB programme. In order to implement the programme, the national science and Technology Commission established overall Group, made up of a number of institutions involved in the implementation of the programme of the hardware.
In 1999, on the eve of the 50th anniversary of national conditions, and also on the programme of the practical use of hardware, at the same time, in order to ensure the broadcast of the work accomplished, the Academy of broadcasting science, (hereinafter referred to as wide Academy) and another set of systems. During the 50-year anniversary, CCTV with the two sets of system successfully conducted a live broadcast, receiving point all over 50.
On the eve of the 50th anniversary of the establishment of a national, national leading group for digital TV, Office located in the State Development Planning Commission. Countries, 50 years later, after the 50th anniversary, Tsinghua University, proposes a multi-carrier, original member of the overall Group proposed a different scheme, forming five programmes, national digital television leading group requires the formation of Tsinghua lead, the final programme, subsequently left behind two Tsinghua University and Shanghai Jiaotong University. 2003 proposed uses Kwang ASTRI LDPC multi-carrier techniques.
Will be the integration of standard
At present, the terrestrial digital TV transmission standard has three options: Tsinghua University, Shanghai Jiaotong University of DMB-T ADTB-T and Broadcasting Institute of TiMi.
Du HBC, State Planning Commission will be a new round of testing and evaluation by the Chair of engineering. Through consultation and testing, the final two rounds of the fusion programme has been promulgated after the test.
Prior to this, in July this year, media reports said the "terrestrial digital TV transmission standard flowers Tsinghua DMB-T, integration standards, causing bankruptcy" great sensation. But du Hbc is a strong indication of the final result will be the fusion programme.
In addition, the State Science and technology, Deputy Director Wang with visit SINA chat that terrestrial digital TV transmission standard will certainly is the fusion of the programme.
A year is converted
For national standards promulgated, the existing three standard and test how to convert, Zhang Haitao, Deputy Director of the State, said that many cities are pilot digital terrestrial television standard once enacted, the transition period is a year's time, in the course of a year to go to GB.
SARFT Deputy Chief Engineer du baichuan emphasized, soon to be released standards is mandatory standards, is not a recommended standards.
This means that, before that, every standard proposal behind has a number of enterprises participating, Tsinghua University, Shanghai Jiaotong University, Canton ASTRI, terrestrial digital TV transmission standard partes strongly demand to own programmes as national standards, however, once after the promulgation of national standards, a single corporate standard is not very meaningful.
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