IEC 60843-4:2000

FOREWORD
1 General
    1.1 Scope
    1.2 Normative references
2 Area allocation and dimensions
    2.1 Types of video subcode (VSC)
    2.2 1 block VSC
    2.3 5 block VSC
3 Data structure
    3.1 1 block VSC
    3.2 5 block VASC
4 Channel coding
    4.1 Modulation
    4.2 Transmission rate
    4.3 Erase code
    4.4 Search mark
    4.5 Synchronization code
    4.6 End mark
5 Data contents
    5.1 Block
    5.2 Word
    5.3 CRC code and error detection
    5.4 Mode
6 Recording method of mode data (Block 4)
    6.1 Time code
    6.2 Recording date/Recording time
    6.3 Video control code
    6.4 Pre-recorded tape modes
Annex A (normative) Code assignment
Annex B (informative) Pre-recorded tape
Figures
1 - Area allocation and dimensions of 1 block VSC
2 - Area allocation and dimensions of 5 block VSC with
    PCM audio
3 - Area allocation and dimensions of 5 block VSC
    without PCM audio
4 - 1 block VSC
5 - 5 block VSC
6 - Synchronization code
Tables
1 - Search mark
2 - Block contents
3 - Word contents
4 - Mode contents
5 - Time code (525 line - 60 field system)
6 - Time code (625 line - 50 field system)
7 - Recording date/Recording time (525 line -
      60 field system)
8 - Recording date/Recording time (625 line -
      50 field system)
9 - Recording length
10 - Pre-recorded tape (525 line - 60 field system)
11 - Pre-recorded tape (625 line - 50 field system)
A.1 - Control command
A.2 - Numeral code
B.1 - Structure of pre-recorded tape

IEC 60843-4:2000 specifies a method of auxiliary data recording and playback with the IEC 60843 8 mm video system. This part is applicable to both 525 line - 60 field and 625 line - 50 field television systems