IEC 62516-2:2011

Overview

IEC 62516-2:2011 is an international standard from the International Electrotechnical Commission (IEC) that defines the characteristics and requirements for interactive data services using Binary Format for Scene (BIFS) in Terrestrial Digital Multimedia Broadcasting (T-DMB) receivers. This standard establishes guidelines for the delivery, synchronization, and management of interactive multimedia content, ensuring effective integration of audio, video, and auxiliary data in T-DMB environments. It is an essential reference for manufacturers, developers, and service providers involved in the design and implementation of T-DMB receivers supporting interactive functionalities.

Key Topics

• Interactive Services with BIFS: IEC 62516-2 specifies how interactive data services built on BIFS can be transmitted and interpreted by T-DMB receivers, allowing for dynamic user interaction with broadcast content.
• Service Requirements: The standard details required conditions for video, audio, and data services, including:
  • Supported video resolution and frame rates
  • Audio quality and format requirements
  • Timing and delay tolerances for service initiation and channel changes
• Auxiliary Data Management: Provides for supplemental and interactive information, including scene description and graphic data, using defined coding formats and supporting random access for enhanced interactivity.
• System and Content Structure: Describes how T-DMB systems multiplex MPEG-4 content and handle the transmission of associated audio, video, and interactive data streams.
• Error Handling: Addresses potential issues in terminal malfunction scenarios and prescribes solutions for correct interpretation of object descriptors and program map tables in interactive BIFS broadcasting.
• Use Cases: Provides practical examples such as broadcast streams containing single or combined audio and video objects, and describes initiation procedures to ensure reliable interactive service startup.

Applications

IEC 62516-2:2011 is fundamental for enabling and enhancing interactive experiences in T-DMB broadcasting. Key applications include:

• Interactive Broadcasting: Supports dynamic interactive content overlay on traditional audio/video programming, such as additional information about TV shows, sports events, or music broadcasts.
• One-way and Bidirectional Interactivity:
  • One-way: Viewers access supplementary drama, music, and sports info.
  • Bidirectional: Enables web connectivity and integration with services like SMS, MMS, e-commerce, and user-generated content, leveraging wireless communication channels (e.g., CDMA, WiBro).
• Broadcast-Participation Services: Facilitates user engagement through features like voting, quiz shows, and public-opinion polls, as well as direct content submissions to broadcasters.
• Broadcast Terminal Design: Ensures manufacturers implement interoperable receivers with robust handling for multiple stream types, error conditions, and varying service modes.

Related Standards

To ensure full compliance and interoperability, IEC 62516-2:2011 should be used in conjunction with:

• IEC 62516-1:2009 - Terrestrial digital multimedia broadcasting (T-DMB) receivers - Part 1: Basic requirement. Provides foundational requirements for T-DMB receivers.
• ISO/IEC 14496-1:2004 - Information technology – Coding of audio-visual objects – Part 1: Systems. Defines system-level elements for coding and synchronizing audio-visual content, including BIFS and object descriptors.

These related standards are critical for the seamless integration of T-DMB receivers within broader multimedia broadcasting systems and ensure robust, interoperable service delivery across markets.

Keywords: IEC 62516-2, terrestrial digital multimedia broadcasting, T-DMB receivers, interactive data services, BIFS, multimedia standards, MPEG-4, broadcast interactivity, auxiliary data, IEC standards, receiver requirements, digital broadcasting applications.