IEC 62298-1:2005

INTERNATIONAL IEC
STANDARD 62298-1
First edition
2005-05
TeleWeb application –
Part 1:
General description
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INTERNATIONAL IEC
STANDARD 62298-1
First edition
2005-05
TeleWeb application –
Part 1:
General description
 IEC 2005  Copyright - all rights reserved
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– 2 – 62298-1  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 General description of TeleWeb.7
4.1 Aims.7
4.2 Overview .8
4.3 OSI seven-layer model .8
5 Documentation structure.8
6 TeleWeb Application profiles .9
6.1 General .9
6.2 Superteletext profile .9
6.3 Hyperteletext profile .11
7 Display model.11
7.1 Display planes.11
7.2 Display priority .14
8 Control model.14
8.1 User control device .14
8.2 Control functions .14
9 Referencing.15
10 General decoder architecture .15

Bibliography.16

Figure 1 – OSI-style seven-layer model for different delivery systems.8
Figure 2 – Documentation structure .9
Figure 3 – Display planes and their priority order .12
Figure 4 – Screen layout example.13
Figure 5 – Block diagram of an example of a Superteletext TeleWeb decoder.15

62298-1  IEC:2005(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
TELEWEB APPLICATION –
Part 1: General description
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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International Standard IEC 62298-1 has been prepared by IEC technical committee 100:
Audio, video and multimedia systems and equipment.
This standard cancels and replaces IEC/PAS 62298 published in 2002.
This first edition constitutes a technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
100/922/FDIS 100/960/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.

– 4 – 62298-1  IEC:2005(E)
IEC 62298 consists of the following parts, under the general title TeleWeb application:
Part 1: General description
Part 2: Delivery methods
Part 3: Superteletext profile
Part 4: Hyperteletext profile (in preparation)
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.

62298-1  IEC:2005(E) – 5 –
INTRODUCTION
TeleWeb delivers World Wide Web-style content to the TV environment, giving the viewer an
enhanced television experience. It can be seen as the successor to Teletext. TeleWeb is not
restricted to the TV environment and can be deployed equally effectively in areas like DAB,
DRM, and home automation.
This standard gives a general overview of the TeleWeb application.

– 6 – 62298-1  IEC:2005(E)
TELEWEB APPLICATION –
Part 1: General description
1 Scope
This part of IEC 62298 gives a general overview of the TeleWeb application that allows Web-
style text and graphics to be broadcast to, and displayed by, suitable decoders.
TeleWeb services can be broadcast in a number of different ways, for example, VBI, DVB,
DAB, etc., and to a variety of decoder types, for example, TVs, portable decoders, PCs, etc.
These transmission protocols are described separately.
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 (all parts), Trigger messages for broadcast applications
IEC 62298 (all parts), TeleWeb application
ETSI EN 300 231, Television systems; Specification of the domestic video Programme
Delivery Control (PDC) system
ETSI EN 300 468, Digital Video Broadcasting (DVB); Specification for Service Information (SI)
in DVB systems
ETSI EN 300 707, Electronic Programme Guide (EPG); Protocol for a TV Guide using
electronic data transmission
ITU-R BT 1379-1:2004, Safe areas of wide-screen 16:9 and standard 4:3 aspect ratio
productions to achieve a common format during a transition period to wide-screen 16:9
broadcasting
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
button
part of the user interface that enables the viewer to select a page or trigger an event, etc. It
may not necessarily exist as a physical button on a remote control handset
3.1.2
Independent Data Line (IDL)
stand-alone Teletext packet containing both control and application data, which does not
form part of a Teletext page. The packet address is either 30 or 31

62298-1  IEC:2005(E) – 7 –
3.1.3
semi-standby
standby mode, currently known in the TV world, in which the small-signal part of the set is
powered to support acquisition and signal processing. The picture tube, audio power
amplifiers and other large-signal parts are not powered. To the user the set appears to be
switched off
3.2 Abbreviations
DAB Digital Audio Broadcasting
DRM Digital Radio Mondiale
DSM-CC Digital Storage Media Command and Control
DVB Digital Video Broadcasting
EPG Electronic Program Guide
ETSI European Telecommunication Standard Institute
GIF Graphics Interchange Format
HTML Hyper Text Mark-up Language
IDL Independent Data Line
JPEG Joint Picture Experts Group
MPEG Moving Picture Experts Group
OSI Open System Interconnection
RGB Red Green Blue
URL Uniform Resource Locator
VBI Vertical Blanking Interval
4 General description of TeleWeb
4.1 Aims
The aim of TeleWeb is to deliver World Wide Web-style content to the living room TV to give
the viewer an enhanced
...