IEC 62298-1-2005 TeleWeb application - Part 1 General description《电视网络应用.第1部分 一般描述》.pdf

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1、 IEC 62298-1 Edition 1.0 2005-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Teleweb application Part 1: General description Application teleweb Partie 1: Description gnrale IEC 62298-1:2005 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2005 IEC, Geneva, Switzerland All rights reserved. Unless o

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15、.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62298-1 Edition 1.0 2005-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Teleweb application Part 1: General description Application teleweb Partie 1: Description

16、 gnrale INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE P ICS 33.170; 35.240.99 PRICE CODE CODE PRIX ISBN 978-2-8322-0729-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning

17、! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 62298-1 IEC:2005 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms, definitions and ab

18、breviations 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 m

19、odel . 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

20、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 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TELEWEB APPLICATION Part 1: General description FOREWORD 1)

21、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

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30、ive 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 respons

31、ible for identifying any or all such patent rights. International Standard IEC 62298-1 has been prepared by IEC technical committee 100: Audio, video and multimedia systems and equipment. This bilingual version (2013-07) corresponds to the monolingual English version, published in 2005-05. This stan

32、dard 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

33、in the report on voting indicated in the above table. 4 62298-1 IEC:2005 The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. IEC 62298 consists of the following parts, under the general title TeleWeb applic

34、ation: 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:/w

35、ebstore.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. 62298-1 IEC:2005 5 INTRODUCTION TeleWeb delivers World Wide Web-style content to the TV environment, giving the viewer an enhanced

36、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 TELEWEB APPLI

37、CATION 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, D

38、VB, 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 edi

39、tion 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 domest

40、ic 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

41、 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 b

42、utton 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

43、 form part of a Teletext page. The packet address is either 30 or 31 62298-1 IEC:2005 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 ot

44、her 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 Telecommunicat

45、ion 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 Genera

46、l 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 television experience. A TeleWeb service broadcasts data files containing text and high-definition graphics to suitable decoders. The data transmitted

47、can be closely linked to events within the accompanying TV programmes, or can be more general in nature to emulate a traditional, but higher definition, Superteletext service. It is intended that TV-based decoders be implemented in a cost-effective manner without recourse to the technology normally

48、associated with personal computers. In part, this is achieved by limiting the number of different types of multimedia data that can be used within a service. By careful design of the user interface, decoder manufacturers will be able to offer easy-to-use equipment for accessing TeleWeb services with

49、out requiring the consumer to be computer-literate. In addition, they will be able to customize their products to differentiate them from those of their competitors. The encoding and transmission scheme is designed to be as efficient and robust as possible consistent with conveying potentially large data files via a unidirectional channel or bi- directional channel with a low or high data rate. For example, TeleWeb data can be broadcast v