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ETSI EN 300 706 V1.2.1 (2003-04)
European Standard (Telecommunications series)
E
nhanced Teletext specification
European Broadcasting Union
Union Européenne de Radio-Télévision
EBU·UER
ETSI
E
TSI EN 300 706 V1.2.1 (2003
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0
4)
2
Reference
REN/JTC-TTEXT-EACEM-R1
Keywords
broadcasting, data, teletext, transmission, TV
ETSI
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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:
editor@etsi.org
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 2003.
© European Broadcasting Union 2003.
All rights reserved.
DECT
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and UMTS
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are Trade Marks of ETSI registered for the benefit of its Members.
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and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members.
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ETSI
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TSI EN 300 706 V1.2.1 (2003
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Contents
Intellectual Property Rights................................................................................................................................9
Foreword.............................................................................................................................................................9
1 Scope......................................................................................................................................................10
2 References..............................................................................................................................................11
3 Definitions, symbols and abbreviations .................................................................................................11
3.1 Definitions........................................................................................................................................................11
3.2 Symbols............................................................................................................................................................12
3.3 Abbreviations ...................................................................................................................................................13
4 TV lines usable as data lines ..................................................................................................................13
4.1 When multiplexed with a composite video signal............................................................................................13
4.2 When not multiplexed with a composite video signal......................................................................................14
5 Signalling characteristics........................................................................................................................14
5.1 Signalling method.............................................................................................................................................14
5.2 Data Signal Levels............................................................................................................................................14
5.3 Bit Rate.............................................................................................................................................................14
5.4 Spectrum of data pulses....................................................................................................................................15
6 Teletext packet identification.................................................................................................................15
6.1 Clock run-in......................................................................................................................................................15
6.2 Framing code....................................................................................................................................................15
6.3 Timing reference ..............................................................................................................................................16
7 Organization of Teletext data elements..................................................................................................16
7.1 Elements of a Teletext packet...........................................................................................................................16
7.1.1 Synchronization sequence...........................................................................................................................16
7.1.2 Packet address.............................................................................................................................................17
7.1.3 Data bytes ...................................................................................................................................................17
7.1.4 Packet types................................................................................................................................................17
7.2 Elements of a page ...........................................................................................................................................18
7.2.1 Definition of a page ....................................................................................................................................18
7.2.2 Page header packet......................................................................................................................................18
7.2.3 The body of a page......................................................................................................................................18
7.3 Elements of a magazine....................................................................................................................................19
7.4 Elements of the service.....................................................................................................................................19
8 Byte coding and error protection............................................................................................................20
8.1 Odd parity.........................................................................................................................................................20
8.2 Hamming 8/4....................................................................................................................................................20
8.3 Hamming 24/18................................................................................................................................................21
9 Coding of data packets...........................................................................................................................22
9.1 Overview of packet types.................................................................................................................................22
9.2 Reserved bits ....................................................................................................................................................24
9.3 Directly displayable data packets.....................................................................................................................25
9.3.1 Page header.................................................................................................................................................25
9.3.1.1 Page number..........................................................................................................................................25
9.3.1.2 Page sub-code .......................................................................................................................................26
9.3.1.3 Control bits............................................................................................................................................26
9.3.1.4 Data bytes..............................................................................................................................................27
9.3.2 Packets X/1 to X/25....................................................................................................................................27
9.4 Page enhancement data packets........................................................................................................................27
9.4.1 Packet X/26.................................................................................................................................................28
9.4.2 Packet X/28/0 Format 1..............................................................................................................................28
9.4.2.1 Page Function and Page Coding............................................................................................................28
9.4.2.2 Coding for basic Level 1 Teletext pages...............................................................................................29
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TSI EN 300 706 V1.2.1 (2003
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9.4.2.3 Coding for data broadcasting pages ......................................................................................................31
9.4.2.4 Coding for other types of page..............................................................................................................31
9.4.3 Packet X/28/0 - Format 2............................................................................................................................31
9.4.4 Packet X/28/1..............................................................................................................................................32
9.4.5 Packet X/28/2..............................................................................................................................................33
9.4.6 Packet X/28/3..............................................................................................................................................33
9.4.7 Packet X/28/4..............................................................................................................................................34
9.5 Magazine-Related Page Enhancement Data Packets........................................................................................35
9.5.1 Packet M/29/0.............................................................................................................................................35
9.5.2 Packet M/29/1.............................................................................................................................................36
9.5.3 Packet M/29/4.............................................................................................................................................37
9.6 Packets for Page Linking..................................................................................................................................37
9.6.1 Packets X/27/0 to X/27/3 for Editorial Linking..........................................................................................37
9.6.2 Packets X/27/4 and X/27/5 - Format 1 - for compositional linking in presentation enhancement
applications.................................................................................................................................................39
9.6.3 Packets X/27/4 to X/27/7 - Format 2 - for compositional linking in data broadcasting applications .........41
9.7 General Coding of packets 30 and 31...............................................................................................................43
9.8 Broadcast Service Data Packets .......................................................................................................................43
9.8.1 Packet 8/30 Format 1..................................................................................................................................43
9.8.2 Packet 8/30 Format 2..................................................................................................................................45
10 System Components for Presentation.....................................................................................................46
10.1 Basic Teletext - Presentation Levels 1 and 1.5.................................................................................................46
10.2 Enhanced Teletext - Presentation Levels 2.5 and 3.5.......................................................................................47
10.3 Page Specific Enhancement Data.....................................................................................................................47
10.3.1 Enhancements via X/26/0 - 15....................................................................................................................47
10.3.2 Enhancements via X/28/0 Format 1............................................................................................................48
10.3.3 Enhancements via X/28/1...........................................................................................................................48
10.3.4 Enhancements via X/28/4...........................................................................................................................48
10.4 Magazine Specific Enhancement Data.............................................................................................................48
10.5 Public Enhancement Data ................................................................................................................................48
10.5.1 Object Definition Pages..............................................................................................................................49
10.5.1.1 Page Format ..........................................................................................................................................49
10.5.1.2 Pointer Table.........................................................................................................................................49
10.5.1.3 Object Definition Area..........................................................................................................................50
10.5.1.4 Page Number Identification ..................................................................................................................50
10.5.2 DRCS Downloading Pages.........................................................................................................................51
10.5.2.1 Page Format ..........................................................................................................................................51
10.5.2.2 Page Number Identification ..................................................................................................................51
10.6 Magazine Organization Table ..........................................................................................................................51
10.6.1 Page Format................................................................................................................................................51
10.6.2 Object Page Association .............................................................................................................................52
10.6.3 DRCS Page Association .............................................................................................................................52
10.6.4 Object Links................................................................................................................................................53
10.6.4.1 Default Object Invocation.....................................................................................................................54
10.6.5 DRCS Links................................................................................................................................................55
10.6.6 Number of Enhancement Pages..................................................................................................................56
10.7 Links between Enhanced System Components................................................................................................56
10.7.1 Linking to Object and DRCS Pages via the MOT......................................................................................56
10.7.2 Linking to Object and DRCS Pages via Packets X/27/4 and X/27/5..........................................................58
11 System Components for Navigation.......................................................................................................59
11.1 Navigation via FLOF........................................................................................................................................59
11.1.1 Principles ....................................................................................................................................................59
11.1.2 Additional components...............................................................................................................................59
11.2 Navigation via TOP..........................................................................................................................................60
11.2.1 Principles ....................................................................................................................................................60
11.2.2 Additional components...............................................................................................................................61
11.3 Magazine Inventory Page.................................................................................................................................62
11.3.1 Principles ....................................................................................................................................................62
11.3.2 Format of the Magazine Inventory Page.....................................................................................................62
11.3.3 Page Function Coding.................................................................................................................................63
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11.3.4 Sub-page range ...........................................................................................................................................66
12 Presentation Levels.................................................................................................................................66
12.1 Display Components ........................................................................................................................................67
12.2 Spacing attributes .............................................................................................................................................70
12.3 Non-spacing attributes and additional characters.............................................................................................74
12.3.1 Use of Packets X/26....................................................................................................................................74
12.3.2 Active Position............................................................................................................................................75
12.3.3 Row Address triplets...................................................................................................................................76
12.3.4 Column Address triplets .............................................................................................................................83
12.4 Colour Map ......................................................................................................................................................89
12.5 Side Panels .......................................................................................................................................................89
12.5.1 Panel position..............................................................................................................................................90
12.5.2 Panel size....................................................................................................................................................90
12.5.3 Data transmission and addressing...............................................................................................................90
12.5.4 Display rules...............................................................................................................................................91
13 Objects....................................................................................................................................................91
13.1 Object definitions.............................................................................................................................................91
13.2 Display priority order.......................................................................................................................................92
13.3 Active Objects..................................................................................................................................................92
13.4 Adaptive Objects..............................................................................................................................................92
13.5 Passive Objects.................................................................................................................................................93
13.6 Object invocation .............................................................................................................................................93
13.7 Screen position of Object elements ..................................................................................................................93
13.8 Default Objects.................................................................................................................................................94
13.9 Object example.................................................................................................................................................94
14 Dynamically Re-definable Characters....................................................................................................95
14.1 Downloading pages..........................................................................................................................................95
14.2 DRCS Character Modes...................................................................................................................................96
14.2.1 Mode 0 - 12x10x1.......................................................................................................................................97
14.2.2 Mode 1 - 12x10x2.......................................................................................................................................97
14.2.3 Mode 2 - 12x10x4.......................................................................................................................................97
14.2.4 Mode 3 - 6x5x4...........................................................................................................................................97
14.3 Flashing DRCS.................................................................................................................................................98
14.3.1 Mode 0........................................................................................................................................................98
14.3.2 Modes 1, 2 and 3.........................................................................................................................................98
14.4 DRCS availability.............................................................................................................................................98
14.4.1 Level 2.5 .....................................................................................................................................................98
14.4.2 Level 3.5 .....................................................................................................................................................98
15 Character sets and their designation.....................................................................................................100
15.1 Overview of designation requirements...........................................................................................................100
15.2 Designation of default G0 and G2 sets and national option sub-sets .............................................................100
15.3 Second G0 Set Designation and National Option Set Selection.....................................................................102
15.4 Modified G0 and G2 Character Set Designation............................................................................................104
15.5 Spacing attributes ...........................................................................................................................................105
15.6 Alphanumeric Character Sets.........................................................................................................................105
15.6.1 Latin G0 Set..............................................................................................................................................106
15.6.2 Latin National Option Sub-Sets................................................................................................................107
15.6.3 Latin G2 Set..............................................................................................................................................108
15.6.4 Cyrillic G0 Set - Option 1 - Serbian/Croatian...........................................................................................109
15.6.5 Cyrillic G0 Set - Option 2 - Russian/Bulgarian........................................................................................110
15.6.6 Cyrillic G0 Set - Option 3 - Ukrainian......................................................................................................111
15.6.7 Cyrillic G2 Set..........................................................................................................................................112
15.6.8 Greek G0 Set.............................................................................................................................................113
15.6.9 Greek G2 Set.............................................................................................................................................114
15.6.10 Arabic G0 Set ...........................................................................................................................................115
15.6.11 Arabic G2 Set ...........................................................................................................................................116
15.6.12 Hebrew G0 Set..........................................................................................................................................117
15.7 Graphics Character Sets .................................................................................................................................118
15.7.1 G1 Block Mosaics Set...............................................................................................................................118
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