SIST EN 300 706 V1.2.1:2003
(Main)Enhanced Teletext specification
- Abstract
The former EACEM Project Team 1.4 (Data Services), the originator of the ETSI standard ETS 300 706, prepared some changes, corrections and additions. The details are given in document J23d06, submitted to the 23rd meeting of JTC Broadcast.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
SIST EN 300 706 V1.2.1:2003 is the Slovenian adoption of ETSI EN 300 706 V1.2.1, published by SIST as an Enhanced Teletext specification. It specifies how Teletext services are carried, coded, linked and presented, including enhanced pages, objects, dynamically re-definable characters (DRCS) and navigation data. It is written for broadcasters, service editors, receiver and decoder designers, and anyone checking Teletext interoperability.
What does SIST EN 300 706 V1.2.1:2003 specify?
SIST EN 300 706 V1.2.1:2003 specifies the Enhanced Teletext system used in television and radio broadcasting. Its scope covers the data structure and presentation rules for Teletext pages, together with the extra packets used for enhancement, linking, navigation and service information.
The document is organized into core clauses on scope, references, definitions, signalling, packet organization, coding, presentation levels, objects, DRCS and character sets. It then adds annexes with normative rules for addresses, transmission, decoding and default decoder behaviour, followed by informative annexes for practical use cases such as FLOF, TOP, MIP, VCR programming, automatic channel installation and data broadcasting.
| Annex | What it covers |
|---|---|
| A | Page addresses and page numbering rules |
| B | Transmission rules |
| C | Decoding rules |
| D | Default operation of decoders |
| H | FLOF navigation code of practice |
| I | TOP navigation |
| J | Magazine Inventory Pages (MIP) |
| K | VCR programming and control via Teletext |
| L | Automatic channel installation |
| M | Data transmission via Teletext |
| N | Data broadcasting services |
What are the key requirements of SIST EN 300 706 V1.2.1:2003?
Clause 4 identifies the TV lines that may be used as data lines, both when Teletext is multiplexed with composite video and when it is not. In practice, this is the starting point for encoder and transmitter design because it fixes where the data can be placed.
Clause 5 defines the signalling characteristics: signalling method, data signal levels, bit rate and spectrum of the data pulses. These limits matter because Teletext receivers must detect the signal reliably and broadcasters need compatible line and level settings.
Clause 6 specifies packet identification using a clock run-in, framing code and timing reference. This is what lets a decoder lock onto Teletext packets and separate them from the rest of the video signal.
Clause 7 describes how Teletext data elements are organized into packets, pages, magazines and services. For editors and system integrators, this is the structure that determines how content is grouped and addressed.
Clause 8 defines the byte coding and error protection used in the system, including odd parity, Hamming 8/4 and Hamming 24/18. This matters in practice because it tells implementers how to encode and check data before display.
Clause 9 gives the detailed coding of data packets, including page headers, enhancement packets, linking packets and broadcast service packets. It covers the page control bits, page enhancement packets X/26, X/28 and M/29, link packets X/27, and packet 8/30 in its two formats. This is the core of interoperability because it determines how pages are identified, enhanced and connected.
Clauses 10 to 15 define how enhanced presentation works, including presentation levels 1, 1.5, 2.5 and 3.5, object handling, DRCS downloading, magazine organization, navigation via FLOF and TOP, and character-set designation. In practice, these clauses tell a broadcaster how to build advanced pages and tell a decoder how to render them.
What terms does SIST EN 300 706 V1.2.1:2003 define?
- LOP - Basic Level 1 Teletext page; the ordinary Teletext page form used as the base for enhancement.
- POP - Public Object Page; a page that carries public object definitions.
- GPOP - Global Public Object Page; a public object page intended for global use.
- DRCS - Dynamically Re-definable Characters; downloadable character data used for custom symbols and graphics.
- MOT - Magazine Organization Table; the table that links a magazine to object and DRCS pages.
- MIP - Magazine Inventory Page; a navigation page that lists page availability and page functions.
- FLOF - Full Level One Facilities; the prompt-key navigation method described in annex H.
- TOP - Table Of Pages; the page-selection system described in annex I.
Who uses SIST EN 300 706 V1.2.1:2003?
SIST EN 300 706 V1.2.1:2003 is used by Teletext broadcasters and service providers to encode page content, navigation aids and broadcast-service information. Decoder and receiver manufacturers use it to implement packet handling, page display, object rendering and character-set support.
Quality managers and buyers use it when they need to check whether equipment supports Teletext pages, enhanced presentation levels, DRCS, or page-navigation functions such as FLOF and TOP. It is also relevant to teams working on VCR control, electronic programme guides (EPG) and data broadcasting over Teletext.
What changed in SIST EN 300 706 V1.2.1:2003 from the previous edition?
This version carries changes, corrections and additions prepared by the former EACEM Project Team 1.4 (Data Services) for the ETSI standard ETS 300 706. The scope points to those modifications as the basis for this edition.
Which standards are used with SIST EN 300 706 V1.2.1:2003?
- EN 300 708 - used for data broadcasting page formats, including Page Format - CA and clear data broadcasting pages.
- EN 300 231 - used for VCR programming, Programme Delivery Control (PDC) and programme identification data.
- EN 300 707 - used for Electronic Programme Guide (EPG) data carried in data broadcasting pages.
- TR 101 231 - used for the allocation of Network Identification (NI) codes.
What does the SIST EN 300 706 V1.2.1:2003 document contain?
SIST EN 300 706 V1.2.1:2003 contains detailed packet layouts, byte and bit mappings, coding schemes and display rules for Teletext and Enhanced Teletext. It includes tables and figures for page headers, link packets, broadcast service data, presentation levels, object pointers, DRCS modes, colour maps and character sets.
The annexes add formal rules for page addressing, transmission order, decoding priorities and default behaviour when packets are missing. The informative annexes add practical coding and usage guidance for navigation, object storage, magazine inventory, VCR control, channel installation and data broadcasting applications.
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Frequently Asked Questions
SIST EN 300 706 V1.2.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Enhanced Teletext specification". This standard covers: The former EACEM Project Team 1.4 (Data Services), the originator of the ETSI standard ETS 300 706, prepared some changes, corrections and additions. The details are given in document J23d06, submitted to the 23rd meeting of JTC Broadcast.
The former EACEM Project Team 1.4 (Data Services), the originator of the ETSI standard ETS 300 706, prepared some changes, corrections and additions. The details are given in document J23d06, submitted to the 23rd meeting of JTC Broadcast.
SIST EN 300 706 V1.2.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.050.30 - Equipment for telex, teletext, telefax; 33.170 - Television and radio broadcasting. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 706 V1.2.1:2003 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Specifikacija izboljšanega sistema TeletextEnhanced Teletext specification33.170Televizijska in radijska difuzijaTelevision and radio broadcasting33.050.30Oprema za teleks, teletekst, telefaksEquipment for telex, teletext, telefaxICS:Ta slovenski standard je istoveten z:EN 300 706 Version 1.2.1SIST EN 300 706 V1.2.1:2003en01-december-2003SIST EN 300 706 V1.2.1:2003SLOVENSKI
STANDARD
ETSI ETSI EN 300 706 V1.2.1 (2003-04) 2
Reference REN/JTC-TTEXT-EACEM-R1 Keywords broadcasting, data, teletext, transmission, TV 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: 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.
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. SIST EN 300 706 V1.2.1:2003
ETSI ETSI EN 300 706 V1.2.1 (2003-04) 3
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 SIST 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 SIST EN 300 706 V1.2.1:2003
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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 SIST EN 300 706 V1.2.1:2003
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15.7.2 G3 Smooth Mosaics and Line Drawing Set.119 Annex A (normative): Page addresses.120 A.1 Page numbering.120 A.2 Use of control bits C4 (Erase Page) and C8 (Update Indicator).121 A.3 Backwards compatibility in X/26 addressing.121 A.4 Addressing order for enhancement triplets.121 A.5 Rules for row and screen colours.122 A.6 Object definition pages.122 A.7 Rules for the overlapping and interleaving of objects.122 A.7.1 Overlapping rules.122 A.7.2 Interleaving rules.123 A.8 Number of objects per page.123 A.9 Coding of packets 8/30, Formats 1 and 2.124 A.10 Reserved page number.124 Annex B (normative): Transmission Rules.125 B.1 Transmission of basic Teletext pages with a page erasure interval.125 B.2 Transmission order of packets with Y = 26, 27 and 28.125 B.3 Serial mode transmission.125 B.4 Parallel mode transmission.126 B.5 Transmission of packets 8/30.126 B.6 Rules for the transmission of presentation enhancement data.126 B.7 Transmission sequence of enhancement data for page updates.127 B.8 Rules for the transmission of Magazine Inventory Pages (MIP).127 B.9 Maximum time between successive packets of a page.127 Annex C (normative): Decoding Rules.128 C.1 Relationship between the display planes.128 C.2 Rules for determining priorities of spacing and non-spacing attributes.128 C.3 Rules applying to the size attributes.129 C.4 Interpretation of character set and DRCS table changes at enhanced levels.130 Annex D (normative): Default operation of decoders.131 D.1 Page level.131 D.1.1 Missing packets X/1 to X/25.131 D.1.2 No packets X/26.131 D.1.3 Packets X/26 with non-sequential designation codes.131 D.1.4 No packet X/27/4.132 D.1.5 No packet X/28/0 Format 1.132 D.1.6 No packet X/28/1.132 D.1.7 No packet X/28/3.132 D.1.8 No packet X/28/4.132 D.2 Magazine level.132 D.2.1 No packet M/29/0.133 D.2.2 No packet M/29/1.133 D.2.3 No packet M/29/4.133 SIST EN 300 706 V1.2.1:2003
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D.3 Service level.133 Annex E (informative): Encoding aspects.134 E.1 Page numbers for object definition and DRCS data pages.134 E.2 Page Time-Code.134 E.3 Use of packets X/26 in Level 1.5 transmissions.134 E.4 Preferred use of packets X/27/4 and X/27/5.134 E.5 Character set designation.135 E.6 Use of DRCS characters within objects.135 E.7 Character cells addressable by objects.135 E.8 Limits for global enhancement data.135 E.9 Selection of national option sub-sets.135 E.10 Characters including diacritical marks.136 E.11 Invocation of default objects.136 E.12 Coding of default objects.136 E.13 Use of Start and End box spacing attributes.136 E.14 Real-time clock Page Header Packets.136 E.15 Recommended and default page numbers.137 Annex F (informative): Transmission aspects.138 F.1 Cycle Times.138 F.1.1 Serial transmissions.138 F.1.2 Parallel transmissions.138 F.1.3 Complex systems.138 F.2 Interrupted pages.138 F.3 Packets M/29.138 F.4 Allocation of Teletext packets to VBI lines.138 F.5 Use of lines 22 and 335.138 F.6 Teletext transmissions outside of the VBI.139 Annex G (informative): Decoding aspects.140 G.1 Mixed mode operation of decoders.140 G.2 Character displays.140 G.3 Behaviour of display attributes.140 G.3.1 Start Box and End Box.140 G.3.2 Separated Mosaic Graphics.140 G.3.3 Hold Mosaics, Release Mosaics and Separated Mosaic Graphics.141 G.4 Minimum decoder configurations.141 G.5 Order of invocation of default objects.141 Annex H (informative): Code of Practice for navigation via FLOF.142 H.1 Objectives.142 H.2 Packets with Y = 27 for automatic page acquisition.142 H.2.1 Coloured keys - prompt mode.142 H.2.2 Link address number 4.142 SIST EN 300 706 V1.2.1:2003
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H.2.3 Link address number 5.142 H.2.4 Link Control Byte.143 H.2.5 Basic page check word.143 H.3 Packets with Y = 24.143 H.4 Fall-back conditions.143 H.4.1 No packet 8/30.143 H.4.2 No packet with Y = 27 and no packet with Y = 24.143 H.4.3 Packet with Y = 27 but no packet with Y = 24.143 H.4.4 Packet with Y = 24 included, other than for prompts in conformity with this Code of Practice.143 Annex I (informative): Navigation via Table Of Pages (TOP).144 I.1 Objectives.144 I.2 Main principles.144 I.2.1 User-controlled selection of pages.144 I.2.2 Direct page access.145 I.2.3 Additional features.145 Annex J (informative): Magazine Inventory Pages (MIP).146 Annex K (informative): VCR programming and control via Teletext.148 Annex L (informative): Use of Teletext Data for Automatic Channel Installation.149 Annex M (informative): Data transmission via Teletext.150 Annex N (informative): Data broadcasting services.151 N.1 Electr
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