Progress of Chinese DTV Standardization

AVMSC

(Audio, Video & Multimedia Standardization Commission)

Zhao Xinhua

2004 － 5 Shanghai

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Chinese national standardization systemAccording to the STANDARDIZATION LAW OF

THE PEOPLE’S REPUBLIC OF CHINA: Standard layers and levels: GB, industry standard, regional standard & enterprise stand

ard. Range covered: GB – security, sanitary, cross-industry SJ – industry standards and specifications DB – regional standards, for security and sanitary only Q/XXXX – Functionalities and performance of specific pro

duct.According to the LAW OF THE PEOPLE’S REPU

BLIC OF CHINA ON PRODUCT QUALITY:Every product should follow its enterprise standards and the standards of the upper level.

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Requirement of DTV StandardizationMarket background:

– TV set manufactured: 40 million/year.– TV set installed: 350 million.– Number of manufacturers: ~ 20 enterprises, ~ 1000

upstream & downstream operations.– Number of TV stations: 1074.

Culture background: TV entertainment has already become one of the

most popular entertaining method. Digital TV has a brilliant future in China market.

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Goal of Standardization

Deliver an integrated Chinese DTV standard system.

Provide technical support for DTV content authoring and service operation.

Provide a scientific technical system for DTV terminal industrialization.

Provide broadcast entertainment services for the end-users.

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Highlights of DTV StandardizationHighlights: At the end of 2000 the special case for DTV standardizatio

n was proposed by the National Development and Reform Commission and the Standardization Administration of China.

In May 2001 the National DTV Standardization Expert Commission was funded to draft the standardization requirement, software architecture and system as well as the ways of working.

In Dec. 2001 the MII Standardization Meeting– Initialized the standardization work for DTV terminal products

– Set up a standardization work team, which began developing the standards

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Chinese DTV Standardization Administration

Standardization Administration of China

SAC

National Development and Reform Commission

Industrialization Leading Team

State Administration ofRadio Film & TV

SARFT

Ministry of Information|Industry

MII

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DTV Standardization Organization Chart

DTV Standardization Expert Commission

National Broadcast and TV Standardization

Technical Commission

AVMSC

Standardization

working team

Standardization

working team

SAC

SARFT

MII

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DTV Standard System Source Channel CA Data Broadcasting Receiving Middleware Interface Display

National Broadcast and TV

Standardization Commission

AVMSC

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Achievements of Standardization Work（ I） Source Video: MPEG 2 Audio: stereo MPEG2, surround audio format to be defi

ned. Channel Satellite: DVB-S, for transmission and coverage. Soluti

on for live broadcasting? Cable: DVB-C test broadcasting, time table for improve

ments. Terrestrial: Transmission standard still under discussion,

DMB-T, ADTB-T or CDTB-T? May finally integrate into one solutions.

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Achievements of Standardization Work（ II）Conditional access: Standard has been worked out,

there are still problems left for implementation.Data broadcasting: Standardization on-going.

Terminal standard:Product performance and functionality standardProduct testing standard Related reception standard has been drafted. Due

to uncertainties in the transmission system, part of the standard will be delayed.

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Achievements of Standardization Work（ III）Middleware:

The specifications for software architecture, software functionalities & performance and API has been finished. The testing suite and the software upgrade mechanisms are still under development.

Interface: AV、 YPbPr、 RGB、 AV。。。。 HDMI、 DVI。。。 Interactivity interface Separation of STB and CA

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Achievements of Standardization Work（ IV）Display:

PDP, CRT, DLP, LCD and LCOS.

Most of the standardization work has been finished

Standardization of core components:

Standardization work on tuner and display.

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Next steps for DTV Standardization

Personal views: DTV return channel IP-based DTV transmission technology Open software platform New high-efficient audio/video compressio

n algorithm standard Source copy protection standard Regional content service standard

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Existing problems of DTV Standardization Uncertainty of transmission system which b

ring negative effects to the standardization. Undefined broadcasting service models Build up of technical evaluation and measur

ement methods The corresponding IPR protection The corresponding compulsory product cert

ification system

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Conclusion The Chinese DTV standardization and industrializ

ation is making rapid progress The current work is focused on channel and displa

y equipments. Collaboration of various resources are required to

build an integrated Chinese DTV standard system by technical R&D and cooperation.

An open environment is needed for foreign companies and corporations to work together and help local companies to achieve a win-win result.

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Thanks!!