1、 INTERNATIONAL STANDARD IEC62298-1 First edition2005-05 TeleWeb application Part 1:General description Reference number IEC 62298-1:2005(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
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7、ervice 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/BANGALOR
8、EFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC62298-1 First edition2005-05 TeleWeb application Part 1:General description IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,el
9、ectronic 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 P For
10、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 62298-1 IEC:2005(E)CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6
11、 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 prof
12、ile.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 s
13、ystems.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 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY B
14、OOK SUPPLY BUREAU.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 all national electrotechnical committees(IEC Natio
15、nal 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 Ava
16、ilable 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 agreeme
