SIST EN 62297-2:2006

Triggering messages for broadcast applications -- Part 2: Transport methods

This document specifies how the trigger  messages defined in IEC 62297-1 are  transmitted. A trigger is defined as information  sent from a service provider as part of a data  broadcasting transmission that initiates an  application in a receiver. Additional information  in the trigger message allows filtering or  prioritisation techniques to be applied at the  receiver. Examples of possible use include the  forcing of the display of information to warn of  severe weather conditions and advising of  extreme content in the TV program. In an interactive system, a message or icon might be displayed inviting on-line access to vote, to register an interest in an advertised product, or to browse programme-related content. This standard specifies how trigger messages are broadcast using teletext technology. Both Page Format-Clear and Independent Data Line methods are defined, using protocols defined in ETSI EN 300 708.

Triggernachrichten für Rundfunkanwendungen -- Teil 2: Übertragungsverfahren

Messages de déclenchement pour les applications de radiodiffusion -- Partie 2: Méthodes de transport

La CEI 62297-2:2005 spécifie la façon dont les messages déclencheurs sont diffusés en utilisant la technologie du télétexte. Les deux méthodes, "Page Format - Clear" (Format de page net) et "Independent Data Line" (ligne de données indépendantes) sont définies, en utilisant les protocoles définis dans l'ETSI EN 300 708. La présente version bilingue (2013-07) correspond à la version anglaise monolingue publiée en 2005-05.

Prožilna sporočila za radiodifuzijo – 2. del: Prenosne metode (IEC 62297-2:2005)

General Information

• Status: Published
• Publication Date: 31-Dec-2005
• ICS: 33.170 - Television and radio broadcasting
• Technical Committee: AVM - Audio, video and multimedia systems and equipment
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2006
• Due Date: 01-Jan-2006
• Completion Date: 01-Jan-2006
• Ref Project: EN 62297-2:2005 - Triggering messages for broadcast applications - Part 2: Transport methods

Standards Content (Sample)

SLOVENSKI SIST EN 62297-2:2006

STANDARD
januar 2006
Prožilna sporočila za radiodifuzijo – 2. del: Prenosne metode (IEC 62297-
2:2005)
(istoveten EN 62297-2:2005)
Triggering messages for broadcast applications – Part 2: Transport methods (IEC
62297-2:2005)
ICS 33.170 Referenčna številka
SIST EN 62297-2:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 62297-2
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2005

ICS 33.170


English version


Triggering messages for broadcast applications
Part 2: Transport methods
(IEC 62297-2:2005)


Messages de déclenchement  Triggernachrichten
pour les applications de radiodiffusion für Rundfunkanwendungen
Partie 2: Méthodes de transport Teil 2: Übertragungsverfahren
(CEI 62297-2:2005) (IEC 62297-2:2005)






This European Standard was approved by CENELEC on 2005-05-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62297-2:2005 E

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EN 62297-2:2005 - 2 -
Foreword
The text of document 100/911/FDIS, future edition 1 of IEC 62297-2, prepared by IEC TC 100, Audio,
video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and
was approved by CENELEC as EN 62297-2 on 2005-05-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62297-2:2005 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 62297-2:2005
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
2)
IEC 62297-1 - Triggering messages for broadcast EN 62297-1 2005
applications
Part 1: Format

1)
ISO/IEC 13818-6 - Information technology - Generic coding - -
of moving pictures and associated audio
information
Part 6: Extensions for DSM-CC

1)
ETSI EN 300 706 - Enhanced teletext specification - -

1)
ETSI EN 300 708 - Data transmission within Teletext - -

1)
ETSI TS 101 231 - Television systems - Register of Country - -
and Network Identification (CNI), Video
Programming System (VPS) codes and
Application codes for Teletext based
systems



1)
Undated reference.
2)
Valid edition at date of issue.

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INTERNATIONAL IEC


STANDARD 62297-2





First edition
2005-05


Triggering messages
for broadcast applications –
Part 2:
Transport methods
 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale M
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

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– 2 – 62297-2  IEC:2005(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references.6
3 Terms, definitions and abbreviations .6
3.1 Terms and definitions .6
3.2 Abbreviations.7
4 Teletext-based methods.7
4.1 Page-format method.7
4.1.1 Maximum length of a trigger message .8
4.1.2 Data stream.8
4.1.3 Transmission aspects.9
4.2 Independent data line method .9
4.2.1 Maximum length of a trigger message .9
4.2.2 Data stream.10
4.2.3 Packet structure.10
5 MPEG-2 transmission-based method.11

Annex A (informative) Code of practice.13
A.1 Page-format teletext transmissions.13
A.2 Independent data line teletext transmissions .13

Figure 1 – Protocol stack .9

Table 1 – Coding of Packet 28/0, format 1 .9
Table 2 – Coding of the four message bits in the Format Type byte .10
Table 3 – Stream Event Descriptor .12

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62297-2  IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

TRIGGERING MESSAGES FOR BROADCAST APPLICATIONS –

Part 2: Transport methods


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62297-2 has been prepared by IEC technical committee 100:
Audio, video and multimedia systems and equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
100/911/FDIS 100/950/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 4 – 62297-2  IEC:2005(E)
IEC 62297 consists of the following parts, under the general title Triggering messages for
broadcast applications:
Part 1: Format
Part 2: Transport methods

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under http://webstore.iec.ch in the
data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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62297-2  IEC:2005(E) – 5 –
INTRODUCTION
This part of IEC 62297 focuses on the transport methods of the trigger messages defined in
IEC 62297-1.

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– 6 – 62297-2  IEC:2005(E)
TRIGGERING MESSAGES FOR BROADCAST APPLICATIONS –

Part 2: Transport methods



1 Scope
This part of IEC 62297 specifies how the trigger messages defined in IEC 62297-1 are
transmitted. A trigger is defined as information sent from a service provider as part of a data
broadcasting transmission that initiates an application in a receiver. Additional information in
the trigger message allows filtering or prioritization techniques to be applied at the receiver.
Examples of possible use include the forcing of the display of information to warn of severe
weather conditions and advising of extreme content in the TV programme. In an interactive
system, a message or icon might be displayed inviting on-line access to vote, to register an
interest in an advertised product, or to browse programme-related content.
This standard specifies how trigger messages are broadcast using teletext technology. Both
Page Format-Clear and Independent Data Line methods are defined, using protocols defined
in ETSI EN 300 708.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 62297-1, Triggering messages for broadcast applications – Part 1: Format
ISO/IEC 13818-6, Information technology – Generic coding of moving pictures and associated
audio information – Part 6: Extensions for DSM-CC
ETSI EN 300 706, Enhanced Teletext specification
ETSI EN 300 708, Data transmission within Teletext
ETSI TS 101 231, Television systems; Register of Country and Network Identification (CNI),
Video Programming System (VPS) codes and Application codes for Teletext based systems
3 Terms, definitions and abbreviations
3.1 Definitions
For the purposes of this document, the following terms and definitions, in singular or plural
form, apply.
3.1.1
Applic
...