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ETR 228 TECHNICAL September 1995 REPORT

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ETR 228 TECHNICAL September 1995 REPORT ETSI ETR 228 TECHNICAL September 1995 REPORT Source: ETSI TC-TE Reference: DTR/TE-01051 ICS: 33.020 Key words: Multimedia, retrieval, protocols Terminal Equipment (TE); Broadband Multimedia Information Retrieval Service ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [email protected] Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16 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. New presentation - see History box © European Telecommunications Standards Institute 1995. All rights reserved. Page 2 ETR 228: September 1995 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to "ETSI Editing and Committee Support Dept." at the address shown on the title page. Page 3 ETR 228: September 1995 Contents Foreword .......................................................................................................................................................7 1 Scope ..................................................................................................................................................9 2 References..........................................................................................................................................9 3 Definitions and abbreviations ............................................................................................................11 3.1 Definitions ..........................................................................................................................11 3.2 Abbreviations .....................................................................................................................11 4 Service description ............................................................................................................................12 4.1 Generic service..................................................................................................................12 4.2 Examples of applications ...................................................................................................13 4.2.1 Video On Demand.........................................................................................13 4.2.2 Video shopping..............................................................................................13 4.2.3 Tele-shopping................................................................................................14 4.2.4 Home banking ...............................................................................................14 4.2.5 Games...........................................................................................................14 4.2.6 Video books/encyclopaedia...........................................................................14 4.2.7 Education ......................................................................................................15 4.2.8 Electronic Programme Guide ........................................................................15 4.2.9 Point of information, point of sales ................................................................16 4.3 Application requirements ...................................................................................................16 4.3.1 Information Providers requirements ..............................................................16 4.3.2 Continuity of services ....................................................................................16 4.3.3 Conclusion.....................................................................................................17 5 Functional architecture......................................................................................................................17 5.1 General model ...................................................................................................................17 5.2 Communication model.......................................................................................................17 5.3 Service architecture ...........................................................................................................19 5.4 Application model...............................................................................................................20 6 Terminal architecture ........................................................................................................................20 6.1 Terminal model ..................................................................................................................20 6.2 Presentation terminal architecture .....................................................................................22 6.3 Multimedia Information management terminal architecture...............................................23 6.3.1 VEMMI terminal architecture.........................................................................24 6.3.2 MHEG terminal architecture..........................................................................25 6.4 Script terminal....................................................................................................................25 6.4.1 Script/VEMMI terminal architecture...............................................................26 6.4.2 Script/MHEG terminal architecture................................................................26 6.5 Application terminal............................................................................................................26 7 Server architecture............................................................................................................................27 8 Candidate standards for MIRS..........................................................................................................28 8.1 Videotex protocols and data syntaxes ...............................................................................28 8.2 Presentation data syntaxes................................................................................................28 8.2.1 Still picture.....................................................................................................28 8.2.1.1 JPEG ...................................................................................28 8.2.1.2 Photovideotex ......................................................................28 8.2.1.3 JBIG.....................................................................................28 8.2.2 Video coding scheme....................................................................................28 8.2.3 Audio coding scheme....................................................................................29 8.3 VEMMI ...............................................................................................................................29 Page 4 ETR 228: September 1995 8.3.1 Introduction ................................................................................................... 29 8.3.2 Main features of VEMMI ............................................................................... 29 8.4 MHEG................................................................................................................................ 30 8.4.1 Introduction ................................................................................................... 30 8.4.2 Structure ....................................................................................................... 30 8.4.3 Main features of MHEG I .............................................................................. 31 8.4.4 Main features of MHEG-III............................................................................ 31 8.5 MPEG2/DSM-CC .............................................................................................................. 31 9 Standardization environment & projects........................................................................................... 32 9.1 Standardization environment............................................................................................. 32 9.2 Projects ............................................................................................................................. 32 9.3 Other multimedia opinion forming bodies.......................................................................... 33 10 Terminal characteristics.................................................................................................................... 34 10.1 General remarks ............................................................................................................... 34 10.2 Presentation oriented analysis .......................................................................................... 34 10.2.1 Synchronisation in time................................................................................. 35 10.2.2 Hypermedia links .......................................................................................... 35 10.2.3 Scaleability of objects ................................................................................... 35 10.2.4 Local echo management .............................................................................
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