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TR 100 287 V1.2.1 (2002-12) Technical Report

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TR 100 287 V1.2.1 (2002-12) Technical Report ETSI TR 100 287 V1.2.1 (2002-12) Technical Report Television systems; Code of practice for enhanced Teletext European Broadcasting Union Union Européenne de Radio-Télévision EBU·UER 2 ETSI TR 100 287 V1.2.1 (2002-12) Reference RTR/JTC-TTXT-COP-R1 Keywords analogue, broadcasting, COP, data, digital, teletext, transmission, TV, video ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [email protected] 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. © European Telecommunications Standards Institute 2002. © European Broadcasting Union 2002. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI TR 100 287 V1.2.1 (2002-12) Contents Intellectual Property Rights................................................................................................................................5 Foreword.............................................................................................................................................................5 Introduction ........................................................................................................................................................5 1 Scope ........................................................................................................................................................7 2 References ................................................................................................................................................7 3 Definitions and abbreviations...................................................................................................................7 3.1 Definitions..........................................................................................................................................................7 3.2 Abbreviations .....................................................................................................................................................7 4 What is new about Level 2.5 Teletext......................................................................................................8 4.1 Colours ...............................................................................................................................................................8 4.2 Character sets .....................................................................................................................................................9 4.3 Attributes............................................................................................................................................................9 4.4 Dynamically Re-definable Character Sets (DRCS)............................................................................................9 4.5 Objects..............................................................................................................................................................10 4.6 Side panels........................................................................................................................................................10 4.7 Level 3.5...........................................................................................................................................................10 5 Objects....................................................................................................................................................10 5.1 Types of objects ...............................................................................................................................................10 5.1.1 Passive objects............................................................................................................................................11 5.1.2 Active objects .............................................................................................................................................11 5.1.3 Adaptive objects .........................................................................................................................................11 5.2 The use of objects.............................................................................................................................................12 6 Saving capacity ......................................................................................................................................13 7 How to work with Level 2.5...................................................................................................................13 7.1 Working on two Levels ....................................................................................................................................13 7.2 Enhancing Level 1 - the overlaying principle...................................................................................................14 7.3 More about colours, attributes, objects and side-panels ...................................................................................14 7.4 The organization of enhancement ....................................................................................................................14 8 Transmission management.....................................................................................................................15 9 Minimum service....................................................................................................................................15 10 Technical epilogue .................................................................................................................................16 10.1 Allocation of page numbers and page sub-codes .............................................................................................16 10.2 Use of the Update bit (C8)................................................................................................................................17 10.3 Language definition and the preferred use of packets 29/0..............................................................................17 10.4 Interrupted pages ..............................................................................................................................................17 10.5 Parallel magazine transmissions.......................................................................................................................17 10.6 FLOF and TOP Navigation Protocols' .............................................................................................................18 10.6.1 Introduction.................................................................................................................................................18 10.6.2 FLOF ..........................................................................................................................................................18 10.6.2.1 Key points .............................................................................................................................................18 10.6.2.2 Identifying a FLOF transmission ..........................................................................................................19 10.6.2.3 Recommendations to service providers.................................................................................................19 10.6.3 TOP.............................................................................................................................................................19 10.6.3.1 Key points .............................................................................................................................................19 10.6.3.2 Identifying a TOP compliant transmission............................................................................................20 10.6.3.3 Recommendations to service providers.................................................................................................20 10.6.4 Combined FLOF and TOP transmissions ...................................................................................................20 10.7 Preferred use of packets 27/4 ...........................................................................................................................20
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