1、ETSI EN 300 706 1.2.1 (2003-04) European Sfandard (Telecommunicafions series) Enhanced Teletext specification 2 ETSI EN 300 706 VI .2.1 (2003-04) The pre ent d Reference RE N/JTC-TTEXT- EACE M- R 1 Keywords broadcasting, data, teletext, transmission, TV ETSI 650 Route des Lucioles F-O6921 Sophia Ant
2、ipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: http:lwmv.etsi .arq cumen
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5、lstatus .as p If you find errors in the present document, send your comment to: Cori vriaht Notifica tion No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Ins
6、titute 2003. O European Broadcasting Union 2003. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare 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
7、 of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI EN 300 706 VI .2.1 (2003-04) Contents Intellectual Property Rights . .9 Foreword . 9 1 2 3 3.1 3.2 3.3 4 4.1 4.2 5 5.1 5.2 5.3 5.4 6 6.1 6.2 6.3 7 7.1 7.1.1 7.1.2 7.1.3 7.1.4 7.2 7.2.1 7.2.2 7.2.3
8、 7.3 7.4 8 8.1 8.2 8.3 9 9.1 9.2 9.3 9.3.1 9.3.1.1 9.3.1.2 9.3.1.3 9.3.1.4 9.3.2 9.4 9.4.1 9.4.2 9.4.2.1 9.4.2.2 Scope 10 References 11 Definitions, symbols and abbreviations . 11 . 11 . 12 . 13 Definitions . Abbreviations Symbols . TV lines usable as data lines 13 When multiplexed with a composite
9、video signal . When not multiplexed with a composite video signal . 13 14 . . 14 . . 14 Bit Rate . . . 14 . . 15 . 15 Clock run-in . 15 Framing code . . 16 Timing reference . . Elements of a Teletext packet . Signalling characteristics . .14 Teletext packet identification .15 Organization of Teletex
10、t data elements . .16 16 Synchronization sequence . 16 Packet address . 17 Data bytes 17 Packet types 17 Elements of a page . Definition of a page Page header packet The body of a page . 18 18 18 18 19 19 on 20 Elements of a magazine Elements ofthe service . . Byte coding and Odd parity . . .20 Hamm
11、ing 8/4 . . 20 Hamming 24/1 . . 21 Coding of data packets . 22 .22 Overview of packet types . .24 Reserved bits . 25 Directly displayable data pac . 25 Page header . .25 Page number . 26 Page sub-code . 26 Control bits. . 27 Data bytes . . 27 .27 Page enhancement data packe . 28 . 28 . 28 . 29 Packe
12、ts X/1 to X/25 . Packet X/26. . Packet X/28/0 Format 1 Page Function and Page Coding Coding for basic Level 1 Teletext pages . ETSI 4 ETSI EN 300 706 VI .2.1 (2003-04) 9.4.2.3 9.4.2.4 Coding for data broadcasting pages . . 3 1 Coding for other types of page 3 1 9.4.3 9.4.4 9.4.5 9.4.6 9.4.7 9.5 9.5.
13、1 9.5.2 9.5.3 9.6 9.6.1 9.6.2 9.6.3 9.7 9.8 9.8.1 9.8.2 10 10.1 10.2 10.3 10.3.1 10.3.2 10.3.3 10.3.4 10.4 10.5 10.5.1 10.5.1.1 10.5.1.2 10.5.1.3 10.5.1.4 10.5.2 10.5.2.1 10.5.2.2 10.6 10.6.1 10.6.2 10.6.3 10.6.4 10.6.4.1 10.6.5 10.6.6 10.7 10.7.1 10.7.2 Packet XI2810 - Format 1 Packet XI2811 32 Pac
14、ket XI2812 33 Packet XI2813 33 Packet XI2814 34 Magazine-Related Page Enhancement Data Packets . . 35 Packet MI2910 . 35 Packet MI2911 . 36 Packet MI2914 . 37 Packets XI2710 37 39 41 43 Broadcast Service Data Packets 43 Packet 8/30 Format 1 43 Packet 8/30 Format 2 45 System Components for Presentati
15、on . . . . .46 Packets for Page Li 37 Basic Teletext - Presentation Levels 1 and 1.5 . 46 Enhanced Teletext - Presentation Levels 2.5 and 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . .47 Page Specific Enhancement Data. . . . . 47 Enhancements via XI2610 - 15 47 Enhancements via XI2810 Format . Enhancements via XI2811 . 48 Enhancements via XI2814 . 48 Magazine Specific Enhancement Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 Public Enhancement Data . . . . 48 Object Definition Pages . . 49 Page Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 49 50 50 DRCS Downloading Pages 51 51 51 Magazine Organization Table 51 51 52 DRCS Page Association 52 53 Default Object Invo
19、cation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 DRCS Links 55 Number of Enhancement Pages 56 Links between Enh
20、anced System Components 56 Linking to Object and DRCS Pages via the MOT 56 Linking to Object and DRCS Pages via Packets XI2714 and XI2715 58 1 1 System Components for Navigation . . .59 11.1 Navigation via FLOF 59 11.1.1 Principles . . 59 1 1.2 Navigation via TOP 60 11.2.1 60 1 1.2.2 Additional comp
21、onents 61 1 1.3 Magazine Inventory Page 62 11.3.1 62 11.3.2 62 11.3.3 Page Function Coding 63 11.1.2 Additional components 59 ETSI 5 ETSI EN 300 706 VI .2.1 (2003-04) 11.3.4 Sub-page range . 66 12 Presentation Levels . 66 12.1 Display Components . 12.2 Spacing attributes . 12.3 Non-spacing attribute
22、s and additional characters 12.3.1 Use of Packets X/26 . 12.3.2 Active Position . 12.3.3 Row Address triplets . 12.3.4 Column Address trip . 12.4 Colour Map . . 89 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
23、. 91 13.1 Object definitions . 91 12.5 13 Objects 91 . 92 . . .92 . . .92 . . .93 . . .93 . .93 13.6 Object invocation 13.7 Screen position of Object elements . 13.8 Default Objects . . .94 13.9 Object example . . .94 14 Dynamically Re-definable Characters. .95 14.1 Downloading pages . . 95 14.2 DRC
24、S Character Modes . 96 14.2.1 Mode O - 12x101 . 97 14.2.2 Mode 1 - 12x102 . 97 14.2.3 Mode 2 - 12x104 . 97 . 97 14.3 Flashing DRCS . 98 14.3.1 Mode O . 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 Mode 3 - 6x54 14.2.4 . 15.1 15.2 15.3 15.4 1
25、5.5 15.6 15.6.1 15.6.2 15.6.3 15.6.4 15.6.5 15.6.6 15.6.7 15.6.8 15.6.9 15.6.10 15.6.11 15.6.12 15.7 15.7.1 15 Character sets and their designation. . .1 O0 Overview of designation requirements. . Designation of default GO and G2 sets and national option sub-sets . 100 Second GO Set Designation and
26、National Option Modified GO and G2 Character Set Designation., . 100 . 102 . 104 - Spacing attributes . 105 Alphanumeric Character Sets. . Latin National Option Sub-Sets . . 105 Latin GO Set . . 106 . 107 Latin G2 Set . . 108 Cyrillic GO Set - Option 1 - SerbiadCroatian . 109 Cyrillic GO Set - Optio
27、n 2 - RussiadBulgarian 110 . 111 . 112 . 113 . 114 . 115 . 116 . 117 . 118 . 118 Cyrillic GO Set - Option 3 - Ukrainian Cyrillic G2 Set . Greek GO Set Greek G2 Set Arabic GO Set Arabic G2 Set Hebrew GO Set . Graphics Character Sets G1 Block Mosaics Set ETSI 6 ETSI EN 300 706 VI . 2.1 (2003-04) 15.7.
28、2 G3 Smooth Mosaics and Line Drawing Set 119 Annex A (normative): Page addresses 120 A.l Page numbering 120 A.2 Use of control bits C4 (Erase Page) and C8 (Update Indicator) 121 A.3 Backwards compatibility in W26 addressing . 121 A.4 Addressing order for enhancement triplets . 121 A.5 Rules for row
29、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
30、 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 t
31、he 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): C . 1 C.2 C.3 C.4 Decoding Rul
32、es . 128 Relationship between the display planes 128 Rules for determining priorities of spacing and non-spacing attributes . 128 Rules applying to the size attributes . 129 Interpretation of character set and DRCS table changes at enhanced levels 130 Annex D (normative): Default operation of decode
33、rs . 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
34、/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 ETSI 7 ETSI EN 300 706 VI . 2.1 (2003-04) D.3 Service level . 133 Annex E (informative): E . 1 Encoding aspects 134 Page numbers for object definition and DRCS data pages . 134 E.2 Page T
35、ime-Code . 134 Use of packets W26 in Level 1.5 transmissions . 134 Preferred use of packets X/27/4 and W27/5 . 134 Character set designation 135 Character cells addressable by objects . 135 Limits for global enhancement data . 135 Characters including diacritical marks . 136 Invocation of default ob
36、jects 136 Coding of default objects . 136 Real-time clock Page Header Packets 136 Recommended and default page numbers 137 Annex F (informative): Transmission aspects . 138 F.l Cycle Times 138 F . 1.1 Serial transmissions . . 138 F . 1.2 Parallel transmissions . 138 F . 1.3 Complex systems . . 138 F
37、.2 Interrupted pages 138 F.3 Packets MI29 138 F.4 Allocation of Teletext packets to VBI lines . 138 F.5 Use of lines 22 and 335 138 F.6 E.3 E.4 E.5 E.6 E.7 E.8 E.9 E . 1 O E . 1 1 E.12 E . 13 Use of Start and End box spacing attributes . 136 E.14 E . 15 Use of DRCS characters within objects . 135 Se
38、lection of national option sub-sets 135 Teletext transmissions outside of the VBI 139 Annex G (informative): G . 1 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 Se
39、parated Mosaic . 141 Minimum decoder configurations 141 Decoding aspects 140 Mixed mode operation of decoders 140 G.4 G.5 Annex H (informative): 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 . 1
40、42 Order of invocation of default objects 141 Code of Practice for navigation via FLOF 142 ETSI 8 ETSI EN 300 706 VI . 2.1 (2003-04) 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
41、 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
42、. 1 Objectives . 144 1.2 Main principles . 144 1.2.1 User-controlled selection of pages . 144 1.2.2 Direct page access 145 1.2.3 Additional features . 145 Annex J (informative): Annex K (informative): Annex L (informative): Annex M (informative): Magazine Inventory Pages (MIP) . 146 VCR programming
43、and control via Teletext . 148 Use of Teletext Data for Automatic Channel Installation 149 Data transmission via Teletext 150 Annex N (informative): N.l Data broadcasting services 151 Electronic Programme Guide (EPG) 151 Annex O (informative): Relationship to earlier specifications . 152 Annex P (in
44、formative): Non-Teletext signals in the VBI 153 Annex Q (informative): Triggering data broadcasting applications 154 Annex R (informative): Bibliography . 155 History 156 ETSI 9 ETSI EN 300 706 VI .2.1 (2003-04) Intellectual Property Rights IPRs essential or potentially essential to the present docu
45、ment may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 314: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofE
46、TSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (5). All published ETSI deliverables shall include information which directs the reader to the above source of information. Foreword This European Standard (Telecommunications series) ha
47、s been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to Co-ordinate the
48、 drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC, which is responsible for the standardization of radio and television receivers. The EBU is a professional association of broadcasting organizations whose work includes the Co-ordination of its members activities in the technical, legal, programme-making and programme-exchange domains. The EBU has active members in about 60 countries in the European broadcasting area; its
