IEC_62298-3-2005.pdf

INTERNATIONAL STANDARD IEC62298-3 First edition2005-05 TeleWeb application Part 3:Superteletext profile Reference number IEC 62298-3:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC62298-3 First edition2005-05 TeleWeb application Part 3:Superteletext profile 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 Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch XD For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62298-3 IEC:2005(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references.7 3 Terms,definitions and abbreviations.8 3.1 Terms and definitions.8 3.2 Abbreviations.8 4 Display.9 4.1 Colour representation.9 4.2 Text representation.10 4.3 Text placement.12 4.4 Image representation.13 4.5 4:3 and 16:9 aspect ratio displays.13 5 URLs.14 5.1 File naming.15 5.2 Access through page number.15 5.3 TeleWeb file reference scheme.16 5.4 Teletext page reference scheme.18 5.5 NexTView reference scheme.19 5.6 Special function URLs.20 6 Text and hypertext.20 6.1 TeleWeb HTML file format.20 6.2 Syntax of TeleWeb HTML tags.22 6.3 Document structure elements.24 6.4 Header section tags.27 6.5 Paragraph formatting.29 6.6 Character formatting.32 6.7 Hypertext links.36 6.8 Lists.41 6.9 Tables.44 6.10 Images.50 6.11 Ticker text.53 6.12 Exceptional ignored tags.55 7 TeleWeb default style.55 8 Image files.55 8.1 GIF.55 8.2 JPEG.56 9 Content labelling.56 9.1 Predefined themes and identifier coding.56 9.2 Parental ratings.56 10 Special data.56 10.1 Service identification graphic.56 10.2 Home page.57 10.3 Default page.57 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62298-3 IEC:2005(E)3 10.4 Profile upgrade page.57 10.5 ZLIB dictionary files.57 11 Service-related attributes.58 11.1 Name.58 11.2 Information.58 11.3 Language.58 11.4 Transmission schedule.58 12 File-related attributes.59 12.1 General file attributes.60 12.2 File content attributes.61 12.3 Time-and date-related attributes.62 12.4 Storage-related attributes.63 12.5 Special function attributes.63 13 Short and full TeleWeb service.64 14 Individual addressing Group addressing.65 Annex A(informative)HTML compatibility.66 Annex B(normative)Default colour palette specification.69 Annex C(normative)Table of predefined themes.71 Annex D(informative)TeleWeb document type definition(DTD).78 Annex E(informative)TeleWeb default CSS2 style sheet.87 Annex F(normative)Font metrics.90 Annex G(informative)TeleWeb Superteletext pr