The standard ABNT NBR 15607-1:2008 - Digital terrestrial television – Interactivity channel establishes the ways in which a receiver device can send information back to the broadcaster through different communication mechanisms. The transmission of common broadcasting content will be done through the air through the main programming feed, while a more customized use of content can be sent through the interactive channel. The standard was written by telecommunications and television experts from many countries with their works coordinated by the

SBTVD Forum The SBTVD Forum is a non-profit organization of private and public companies responsible for the general aspects of Digital TV deployment in Brazil. The organization was founded in 2007 in order to address all technical issues regarding the upcom ...

and cover in detail all the aspects of video and audio coding that applies to

SBTVD ISDB-T International, or SBTVD, short for Sistema Brasileiro de Televisão Digital ( en, Brazilian Digital Television System), is a technical standard for digital television broadcast used in Brazil, Argentina, Peru, Botswana, Chile, Honduras, Ve ...

. The complete document can be found and downloaded freely in English, Spanish and Portuguese at

ABNT The Brazilian Association of Technical Standards, usually rendered in Portuguese as Associação Brasileira de Normas Técnicas (ABNT) is a private non-profit organization and the normative body which is responsible for technical standards in Bra ...

's website.

Introduction

The interactivity channel aspects of the Brazilian Digital Terrestrial Television Standards are described in document ABNT NBR 15607-1:2008 - Digital terrestrial television – Interactivity channel -Part 1: Protocols, physical and software Interfaces, published by

, the Brazilian Association of Technical Standards (''Associação Brasileira de Normas Técnicas'').

, the Brazilian Association of Technical Standards (''Associação Brasileira de Normas Técnicas'') The standard establishes the ways in which a receiver device can send information back to the broadcaster through different communication means. The transmission of common broadcasting content will be done through the air through the main programming feed, while a more customized use of content can be sent through the interactive channel.

Document technical overview

Brazilian proposal for the interactivity channel is focused on flexibility and is based on

TCP/IP The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suit ...

protocol. Receiver shall have a

USB Universal Serial Bus (USB) is an industry standard that establishes specifications for cables, connectors and protocols for connection, communication and power supply (interfacing) between computers, peripherals and other computers. A broad ...

interface for an external Modem connection. This is adequate to comply with an existing telecomm infrastructure of multiple technologies and is also open for future innovations. Also, the standard allows for many different possible ways of connecting a receiver device to a network, and use it as an interactivity channel. Future technologies in communications can be easily integrated in the proposed system. These documents are also available at ABNT website.

Summary

Interactivity channel is the name used for any communication mean that allows a receiver to send information back to the broadcaster. Some times called return channel, the name interactivity channel seems more correct since applications can be sent through the broadcast side and the through the channel itself. The document describing the reference specification for the interactivity channel is ABNT NBR 15607-1:2008 - Digital terrestrial television – Interactivity channel -Part 1: Protocols, physical and software Interfaces.

References

External links

website http://www.abnt.org.br/tvdigital *

SBTVD Forum website http://www.forumsbtvd.org.br/ *

ARIB The , commonly known as , is a standardization organization in Japan. ARIB is designated as the center of promotion of the efficient use of the radio spectrum and designated frequency change support agency. Its activities include those previously ...

Association of Radio Industries and Businesses website http://www.arib.or.jp/english/ *

DiBEG DiBEG (The Digital Broadcasting Experts Group) was founded in September 1997 to promote ISDB-T International, the Digital Broadcasting System, in the world. See also *ISDB *ISDB-T International ISDB-T International, or SBTVD, short for Sistema B ...

Digital Broadcasting Experts Group website http://www.dibeg.org/ {{DEFAULTSORT:Abnt Nbr 15607 ABNT standards