SIST EN 300 472 V1.2.2:2005

SLOVENSKI STANDARD
01-november-2005
Digitalna videoradiodifuzija (DVB) – Specifikacija za prenos teleteksta po
standardu ITU-R sistem B v bitnih tokih digitalne videoradiodifuzije
Digital Video Broadcasting (DVB); Specification for conveying ITU-R System B Teletext
in DVB bitstreams
Ta slovenski standard je istoveten z: EN 300 472 Version 1.2.2
ICS:
33.170 Televizijska in radijska Television and radio
difuzija broadcasting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 300 472 V1.2.2 (1997-08)
European Standard (Telecommunications series)
Digital Video Broadcasting (DVB);
Specification for conveying ITU-R System B Teletext
in DVB bitstreams
European Broadcasting Union Union Européenne de Radio-Télévision
EBU
UER
European Telecommunications Standards Institute

2 EN 300 472 V1.2.2 (1997-08)
Reference
REN/JTC-00DVB-47 (4dc00ipc.PDF)
Keywords
DVB, digital, video, broadcasting, TV, Teletext,
MPEG
ETSI Secretariat
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Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1997.
© European Broadcasting Union 1997.
All rights reserved.
3 EN 300 472 V1.2.2 (1997-08)
Contents
Intellectual Property Rights.4
Foreword .4
1 Scope.5
2 Normative references .5
3 Definitions and abbreviations .5
3.1 Definitions . 5
3.2 Abbreviations. 6
4 Insertion of Teletext into MPEG-2 transport multiplex.6
4.1 Transport Stream (TS) packet format . 6
4.2 PES packet format . 6
4.3 Syntax for PES data field. 7
4.4 Semantics for PES data field. 7
5 Teletext decoder model.9
History.10

4 EN 300 472 V1.2.2 (1997-08)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of
ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI
Web server (http://www.etsi.fr/ipr).
Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI.
No guarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates on
http://www.etsi.fr/ipr) which are, or may be, or may become, essential to the present document.
Foreword
This version, previously as an ETS now an EN, contains changes of an entirely editorial nature as follows:
1) add the DVB logo to the front page of the deliverable;
2) change the title from: "Digital broadcasting systems for television, sound and data services; etc." to "Digital
Video Broadcast (DVB); etc.";
3) add in the foreword the DVB acknowledgement.
This European Standard (Telecommunications series) has been produced by the Joint Technical Committee (JTC) of the
European Broadcasting Union (EBU), Comité Européen de Normalisation ELECtrotechnique (CENELEC) and the
European Telecommunications Standards Institute (ETSI).
NOTE: The EBU/ETSI JTC was established in 1990 to co-ordinate the drafting of standards in the specific field
of broadcasting and related fields. Since 1995 the JTC became a tripartite body by including in the
Memorandum of Understanding also CENELEC, which is responsible for the standardization of radio and
television receivers. The EBU is a professional association of broadcasting organizations whose work
includes the co-ordination of its members' activities in the technical, legal, programme-making and
programme-exchange domains. The EBU has active members in about 60 countries in the European
broadcasting area; its headquarters is in Geneva *.
* European Broadcasting Union
Case Postale 67
CH-1218 GRAND SACONNEX (Geneva)
Switzerland
Tel: +41 22 717 21 11
Fax: +41 22 717 24 81
Digital Video Broadcasting (DVB) Project
Founded in September 1993, the DVB Project is a market-led consortium of public and private sector organizations in
the television industry. Its aim is to establish the framework for the introduction of MPEG-2 based digital television
services. Now comprising over 200 organizations from more than 25 countries around the world, DVB fosters market-
led systems, which meet the real needs, and economic circumstances, of the consumer electronics and the broadcast
industry.
Proposed national transposition dates
Date of adoption of ETS 300 472: 18 October 1996
Date of latest announcement of ETS 300 472 (doa): 31 August 1995
Date of latest publication of new National Standard
or endorsement of ETS 300 472 (dop/e): 29 February 1996
Date of withdrawal of any conflicting National Standard (dow): 29 February 1996

5 EN 300 472 V1.2.2 (1997-08)
1 Scope
The present document specifies the method by which ITU-R System B Teletext (ITU-R Recommendation 653 [3]),
also known as EBU Teletext (see EBU SPB 492 [4]), may be carried in DVB bitstreams. This transport mechanism is
intended to satisfy the following requirements:
- to support the transcoding of the Teletext data into the Vertical Blanking Interval (VBI) of analogue video.
The transcoded signal should be compatible with existing TV receivers with Teletext decoders;
- the maximum data rate for each Teletext service is equivalent to 16 lines per field so that the service is always
suitable for transcoding into the VBI;
- the transmission mechanism should be capable of transmitting subtitles with accurate timing with respect to the
video (i.e. to within or near frame accuracy).
A more general data transport mechanism for conveying new types of data services is outside the scope of the present
document, but the transport syntax specified here can also be adapted for other data.
2 Normative references
References may be made to:
a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in
which case, subsequent revisions to the referenced document do not apply; or
b) all versions up to and including the identified version (identified by "up to and including" before the version
identity); or
c) all versions subsequent to and including the identified version (identified by "onwards" following the version
identity); or
d) publications without mention of a specific version, in which case the latest version applies.
A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
[1] ISO/IEC 13818-1 (1994): "Information Technology -
...