1、ETSI TR 1 O1 288 V1.3.1 (2002-12) Technical Repor Television systems; Code of practice for an Electronic Programme Guide (EPG) 2 ETSI TR 101 288 V1.3.1 (2002-12) The pre ent d Reference RTR/JTC-EPG-COP-R2 Keywords broadcasting, Teletext, TV ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex
2、- 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 cument may be made
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6、O European Broadcasting Union 2002. 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 of ETSI regi
7、stered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI TR 101 288 V1.3.1 (2002-12) Contents Intellectual Property Rights . .6 Foreword . 6 1 2 3 3.1 3.2 4 5 5.1 5.2 5.3 5.4 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 7.6 8 8.1 8.2 8.2.1 8.2.2 8.2.3 8.3 8.3.1 8.3.2 8.4
8、 8.5 8.6 9 9.1 9.2 9.3 9.4 10 11 11.1 11.2 Scope 7 References . .7 Definitions and abbreviations .7 Definitions 7 Abbreviations . 9 Introduction to Electronic Programme Guides (EPG). .9 Fundamentals of an EPG 11 11 12 12 Characteristic elements of EPG services 13 13 14 14 15 A non-proprietary and no
9、n-discriminatory system . Key concepts 11 Basic editorial decisions . EPG and Teletext This Channel EPG Multiple channel EPG Full EPG The “Near“ and %.ur“ distinction . Types of decoder 15 . . . Full EPG decoder . systems and decoders . The structure of an EPG service . 17 18 . 18 Block contents 18
10、Transmission aspects 18 Identification of the broadcaster . 18 Programme Information blocks 19 Text content 19 Attributes, categories and ratings 19 Display related blocks 20 Navigation Information blocks . 20 20 The Bundle Information block . The Application Information block The transmitted data s
11、tream Display aspects .2 1 Screen layout 21 The definition of text . .22 Use of the Carriage Return attribute . 23 Enhanced EPG 23 Copyright and access control .23 Scope and depth of an EPG 24 General considerations . . .24 Prioritization. . .24 11.2.1 The whole EPG . . .24 11.2.2 Near information .
12、 25 1 1.2.3 Far information . 25 11.3 Editorial guidance . 25 ETSI 4 ETSI TR 101 288 V1.3.1 (2002-12) 11.3.1 Data volume, data rates and prioritizing 25 11.3.2 Time to acquire . . .25 11.3.3 Version control . . .25 11.3.4 Viewers preferences 26 11.3.5 Enhanced EPG . .26 12 Technical background 26 12
13、.1 12.2 12.2.1 12.2.2 12.2.3 12.2.4 12.2.5 12.2.6 12.3 12.3.1 12.3.2 12.3.3 12.3.4 12.4 12.5 12.5.1 12.5.2 12.5.3 12.5.4 12.5.5 12.5.6 12.5.7 12.5.8 12.6 12.7 12.7.1 12.7.2 12.7.3 12.7.4 12.7.5 12.7.6 Outline Transmission aspects. . Page format . Stream 1 . Stream 2 . 27 Filler packet space . 28 Tra
14、nsmission relationship between Streams 1 and 2 . 29 Serial versus parallel transmissions . 29 Database components 30 Bundle Information 30 Application Information 30 Programme Information . . .30 OSD Information, Navigation Information and other blo 31 Typical transmission decisions 31 Service scena
15、rios . 31 33 33 33 Minimum EPG service; This Ch This Channel Near This Channel Today Service A: This Channel Only Service B: 4 channels for 7 days in some d hannels for 3 days, titles only 34 Service C: 2 channels in detail plus 9 other channels, titles only, for 7 days 36 Conclusions and impact on
16、the nornlal Teletext service . 39 Technical tailoring 40 Other operational issues . Numbering, scheduling and transmission of Programme Information blocks . .41 Service D: 1 channel in some depth plus 20 other channels, titles only, for 5 days 37 41 Operations at the end of a programme . . shing . .
17、 13.1 13.2 13.2.1 13.2.2 13.3 13.3.1 13.3.2 13.4 13.4.1 13.4.2 13.4.2.1 13.4.2.2 13.4.2.3 13.4.2.4 13.4.2.5 13.4.2.6 13.4.2.7 13.4.2.8 13 Default EPG operation using the TV-related pages of a Teletext service 44 General .44 TV-related Teletext pages 45 Content 45 Access issues 45 Magazine Inventory
18、Page (MIP) 45 General principles . 45 TV-related categories 46 Operational aspects. 46 Default operation of decoders . Page-type definitions . .46 TV index page . Current TV programme information page Current TV programme warning page “Now and Next“ TV programme NexTView Transpor . NexTView Network
19、Identification . .46 . .46 . .47 . .47 . .47 . . 14 Encoding and decoding transparent strings . .48 14.1 General . 48 14.2 Transparent strings . 48 14.3 Code of practice . 48 ETSI 5 ETSI TR 101 288 V1.3.1 (2002-12) Annex A: Annex B: Annex C: Annex D: Commercial name for EPG services 51 List of progr
20、amme attributes . 52 Pre-defined programme theme categories 53 Editorial committee 55 History 56 ETSI 6 ETSI TR 101 288 V1.3.1 (2002-12) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these es
21、sential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 3 14: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updat
22、es 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 Technical Report (TR) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (E
23、BU), 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 drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JT
24、C 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
25、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 headquarters is in Geneva. European Broadcasting Union CH-I218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +
26、41 22 717 24 81 ETSI 7 ETSI TR 101 288 V1.3.1 (2002-12) 1 Scope The present document is intended as a companion document to the full specifications, EN 300 707 11 and EN 300 708 2, covering the data format and transmission via Teletext of an Electronic Programme Guide (EPG). It is primarily aimed at
27、 EPG/Teletext service providers and network operators with the intention that the specifications are interpreted in a consistent way while recognizing that there are many options available to all the parties involved in creating the total system. The present document outlines the basic EPG concepts
28、and highlights the key parameters for a successful service. It makes recommendations as to how aspects of the specifications should be implemented and suggests strategies to maximize the transmission efficiency of both normal Teletext and EPG services when they coexist in the same TV channel. The pr
29、esent document has been revised in the light of the knowledge and experience gained from operating real services with a variety of decoders available. It is anticipated that the operation of enhanced EPG may require a further revision. 2 Re fe re nces For the purposes of this Technical Report (TR) t
30、he following references apply: il ETSI EN 300 707: “Electronic Programme Guide (EPG); Protocol for a TV Guide using electronic data transmission“. 21 31 41 ETSI EN 300 708: “Television systems; Data transmission within Teletext“. ETSI EN 300 706: “Enhanced Teletext specification“. ETSI EN 300 23 1:
31、“Television systems; Specification of the domestic video Programme Delivery Control system (PDC)“. ETSI TS 101 23 1: “Television systems; Register of Country and Network Identification (CNI), Video Programming System (VPS) codes and Application codes for Teletext based systems“. ETSI TR 100 287: “Te
32、levision systems; Code of practice for enhanced Teletext“. 51 61 3 3.1 Definitions and abbreviations De fi nit ions For the purposes of the present document, the following terms and definitions apply: application information: Data block providing the name of the EPG service provider and a list of th
33、e networks supported. The total number of programmes and number of days covered for each network is indicated. attributes: additional “machine-readable“ information on a programme event, e.g. “live“ or “subtitled“ NOTE: Can be used by a decoder as a filter when searching the database. Also known as
34、“Feature Flags“ bundle information: Data block applicable to all data broadcasting applications within a given stream. It enables the number of applications and their type to be identified. category: content of a programme event; e.g. “News“, “Sport“, “Drama“ composite EPG decoder: decoder which com
35、piles a multiple channel display by scanning several EPG services on different networks conditional access: method by which network operators/EPG service providers can restrict access to all or part of their service to a particular group of viewers ETSI 8 ETSI TR 101 288 V1.3.1 (2002-12) database: T
36、he EPG service providers store of all programme-related data. In a decoder context, the sub-set of the EPG transmission which the decoder has stored. data stream: continuous sequence of EPG-related data NOTE: In order to maximize efficient use of the VBI capacity and to guarantee a maximum performan
37、ce for an EPG service, the total EPG data stream can be split into two separate streams (Stream 1 and Stream 2) for transmission purposes. decoder: collects and decodes the transmitted EPG data. It processes and stores the data and under user control selects the information for display NOTE: Decoder
38、s can differ in their storage capacity and display capability. EPG service provider: generic term for the different parties involved in compiling an EPG database and formatting it ready for transmission event area: part of the EPG display screen where programmes are listed or menu items are displaye
39、d far information: programmes which are not scheduled for transmission today or tomorrow but for the third day onwards NOTE: Compare with Near information. feature flags: See “Attributes“. filler packets: dummy packets inserted onto otherwise unused VBI lines which exist as a result of obeying the 2
40、0 ms rule full EPG: multiple channel EPG service which includes navigation and sorting information header area: The top-most part of the EPG display screen. Its contents are defined by the EPG service provider. housekeeping data: elements within an EPG transmission that are essential to its operatio
41、n but which do not form part of the programme database Level 1, 1.5,2.5,3.5: Teletext presentation levels message area: part of the EPG display screen where text messages defined by the EPG service provider are displayed NOTE: Normally the text will be linked to a highlighted event in the Event Area
42、. multiple channel EPG: EPG service transmitted on a particular network which comprises information on programmes from more than one network or TV channel navigation: method by which the viewer interacts with the decoding system via menus, leading him to the desired programme information navigation
43、area: the bottom-most part of the display screen where the decoder displays locally generated user-interface prompts and messages to enable the viewer to access the EPG navigation information: Data block used to create a menu structure for navigation purposes within a Full EPG. It defies the text to
44、 be displayed and the links to the next level of menu or programme information. near information: programmes scheduled for transmission today or tomorrow network operator: generic term for the different parties responsible for the delivery of the EPG data now and next: details about the current TV p
45、rogramme (or programmes in the case of a multiple channel service), plus the programme(s) that follow on immediately OSD information: data block used to define display data for areas of the display screen that are under the control of the EPG service provider programme information: data block contai
46、ning information about one programme event. It includes channel, times, ratings, themes, etc. ETSI 9 ETSI TR 101 288 V1.3.1 (2002-12) refresh procedure: constant transmission of the complete EPG database NOTE: Different parts of the database can be transmitted at different rates according to the pri
47、ority of the data. Stream 1: The Teletext pages carrying Near Information. Their transmission obeys the 20 ms page clearing rule. The pages are distinguishable from those in Stream 2 through the allocation of a value of “O“ to the S3 component of the page sub-code. Stream 2: The Teletext pages carry
48、ing the remaining EPG data that is not included in Stream 1. Their transmission does not have to obey the 20 ms page clearing rule. The pages are distinguishable from those in Stream 1 through the allocation of a value of “1“ to the S3 component of the page sub-code. transparent strings: Sequences o
49、f characters and attributes defiied by the EPG service provider as part of the EPG database. Spacing attributes (a sub-set of those available with Level 1 Teletext) can be used within each string. Accented characters and symbols found in Level 1.5 Teletext transmissions are also accessible. update procedure: transmission of information which enables a decoder to update quickly a section of its database when changes occur in the programme schedule 20 ms page clearing rule: This rule defines the minimum interval between the transmission of the page h
