IEC 61866 : 1.0

AUDIOVISUAL SYSTEMS - INTERACTIVE TEXT TRANSMISSION SYSTEM (ITTS)

International Electrotechnical Committee

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FOREWORD
INTRODUCTION
1 General
    1.1 Scope
    1.2 Definitions and abbreviations
          1.2.1 Definitions
          1.2.2 Abbreviations
    1.3 Presentation conventions
2 ITTS packet structure
    2.1 Introductory remark
    2.2 ITTS packet format
    2.3 Packet-header field descriptions, bytes 0-7
          2.3.1 Packet-header byte 0: language number
                  and application item
          2.3.2 Packet header byte 1-2: packet index
          2.3.3 Packet-header byte 3-4
          2.3.4 Packet-header byte 5
          2.3.5 Packet-header byte 6: function controls
          2.3.6 Packet-header byte 7: character set
                  control
    2.4 Data field description, bytes 8-47
          2.4.1 GRAPHICS packet
          2.4.2 DATA packet
3 ITTS data presentation
    3.1 Character repertoire
    3.2 Serial textline attributes and character controls
          3.2.1 Serial text line attributes
          3.2.2 Decoder and character-display alternatives
    3.3 1-line display functions
          3.3.1 Validation of 12 characters from
                  40-character displays
          3.3.2 Character validation
    3.4 HORIZONTAL SCROLL function for 12-character
          displays
    3.5 CLEAR SCREEN
    3.6 Colours
          3.6.1 Default colours
          3.6.2 Highlighting related colour constraints
    3.7 Menus
          3.7.1 Vertical and horizontal menus
          3.7.2 Function control via commands
          3.7.3 Interactive commands
          3.7.4 IC command table
    3.8 Dynamically redefinable character (DRC) packet
          3.8.1 DRC pattern transmission format, single
                  font mode
          3.8.2 DRC pattern transmission format, double
                  size font mode
    3.9 Data integrity
Tables
1 Latin-based alphanumeric character set
2 Extended Latin-based alphanumeric character set
3 Mosaic and lined graphics font set
4 Japanese font table 1
5 Japanese font table 2
6 Conversion from ITTS character codes to JIS font numbers
7 Serial textline attributes
8 Foreground colour serial textline attributes
9 Background colour serial textline attributes
10 1-line display controls
11 Colour look up table
Figures
1 TEXT MENU packet content
2 RUNTIME MENU packet content
3 GRAPHICS TEXT packet content
4 GRAPHICS RUNTIME MENU packet content
5 DATA packet content
C.1 Character set selection within a text line - Example
    of mixed graphics and alphanumeric line
C.2 Character set selection within a text line - Example
    of mixed alphanumeric, Kanji and Katakana line
C.3 Language selection by indexing a maximum of seven
    languages out of a total of 256 possible languages
Annexes
A (informative) Application examples for 2-line coding
B (informative) Sample outline for 12-character validation
C (informative) Language support and character sets
D (informative) Bibliography

Abstract

Provides the mechanism for encoding sound associated data on pre-recorded media and for the transport of such data across equipment interfaces. Defines the higher layers of ITTS, i.e. those system characteristics which are independent of the recording or interconnection medium.