EN 62297-1:2005

INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 Trigger message
  4.1 General
      4.1.1 Viewer interaction
      4.1.2 Priority ratings
      4.1.3 Character coding
      4.1.4 Future compatibility
  4.2 Life cycles
      4.2.1 Trigger message and event message life cycle
      4.2.2 Event message preparation life cycle
      4.2.3 Application life cycle
  4.3 Syntax of trigger message
      4.3.1 General
      4.3.2 Trigger text length
      4.3.3 Syntax of trigger text
      4.3.4 Trigger repetition
Annex A (informative) Recommendations
Annex B (informative) Code of practice
      B.1 Time reference
      B.2 Modifying triggers
      B.3 Trigger expiry
      B.4 Countdown values
      B.5 Initial state
      B.6 Multiple sources
      B.7 Receivers not supporting concurrent ApplicationObject
           instances
      B.8 Receivers supporting concurrent ApplicationObject
           instances
      B.9 The ICON bitmap
      B.10 The use of priority
      B.11 Interaction of name and script attributes
      B.12 Supporting multiple applications
      B.13 Supporting multiple transport layers
      B.14 Who is in control
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

specifies an application-triggering scheme for TV broadcasting information sent from a service provider as part of a data broadcasting transmission and intended to control an application in a receiver.