RECOMMENDATION ITU-R BT.1119-2* - WIDE-SCREEN SIGNALLING FOR BROADCASTING
ANNEX 1
1 Scope
2 Normative references
3 Definitions
    3.1 Symbols and abbreviations
4 Requirements
    4.1 Line code
    4.2 Information content of data bits
APPENDIX 1 - TO ANNEX 1 - Rules of operation
1 Receiver display formats
2 Subtitling
3 Procedure in absence of signalling
APPENDIX 2 - TO ANNEX 1 - Recommended practices
1 Low pass pre-filtering
2 Response time on a change in the received signalling information
ANNEX 2
1 Scope
2 Definitions, symbols and abbreviations
    2.1 Definitions
    2.2 Symbols and abbreviations
3 Requirements
    3.2 Information content of data bits