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Data Coding and Transmission Specification
for Digital Broadcasting
Standard (ARIB STD-B24) Overview

This standard specifies the monomedia coding system, multimedia coding system, and data transmission system used for data broadcasts in digital broadcasting. The broadcast media to which the current version (3.1) of this standard applies are listed in"1. Scope (Ver. 3.1)"below. This standard will be revised for other digital broadcast media as the standards for such media are established.

In addition, the multimedia coding system specified in this standard has been established in accordance with the following guideline specified in the July 21, 1999 Digital Broadcasting System Committee Report of the Telecommunications Technology Council of the former Ministry of Posts and Telecommunications:

"It is desirable that details of the multimedia coding system be based on XML and be standardized in a flexible manner by private standardization organizations."


1. Scope (Ver. 3.1)
(1) Digital satellite broadcasting in the 11.7-12.2 GHz frequency band
(2) Broadband digital satellite broadcasting within digital satellite broadcasting in the 12.2-12.75 GHz frequency band
(3) Digital terrestrial television broadcasting
(4) Digital terrestrial sound broadcasting


2. Contents

(1) Volume 1 Data Coding System

Volume 1 consists of the following three sections.

Part 1 Reference models for data broadcasting
Part 2 Monomedia coding
Part 3 Subtitles/captions coding

Part 1 specifies a reference model for the entire data broadcasting system plus reference models associated with protocol, receivers, and presentation processing.

Part 2 specifies monomedia coding for video, still images, audio, text, drawings, etc.

Part 3 specifies the coding of subtitles and captions superimposed on video and the data transmission system.


(2) Volume 2 XML-based Multimedia Coding System

Volume 2 specifies the coding of B-XML documents, the BML application language for representing multimedia, the conversion of XML documents to BML by XSL, a procedure description language, monomedia coding and the transmission system used in BML/B-XML documents, content transmission and name space, etc.

Appendix 1, moreover, presents points requiring attention in actual operations and conditions associated with coding-system use in the form of guidelines, and Appendix 2 presents operational guidelines for executing basic services.


(3) Volume 3 Data Transmission System

Volume 3 first overviews the functions and use of four types of data transmission systems: independent Packetized Elementary Stream (PES) transmission system, data carousel transmission system, event-message transmission system, and bi-directional transmission system. It then specifies the data structures, descriptors, protocol, etc. of these systems.



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