FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Time representation in 30 and 60 frames per
second systems
4.1 Definitions of real time and NTSC time
4.2 Time address of a frame
4.3 Colour frame identification in NTSC analogue
composite television systems
5 Time representation in 25 and 50 frames per
second systems
5.1 Definition of real time
5.2 Time address of a frame
5.3 Colour frame identification in PAL analogue
composite television systems
6 Time representation in 24-frame systems
6.1 Definitions of real time and NTSC time
6.2 Time address of a frame
7 Structure of the time address and control bits
7.1 Numeric code
7.2 Time address
7.3 Flag bits
7.4 Use of the binary groups
7.5 Clock time reference - Binary group flag combinations
8 Linear time code application
8.1 Code word format
8.2 Code word data content
8.3 Modulation method
8.4 Bit rate
8.5 Timing of the code word relative to a television signal
8.6 Linear time code interface electrical and
mechanical characteristics
9 Vertical interval application - Analogue Television systems
9.1 Code word format
9.2 Code word data content
9.3 Modulation method
9.4 Bit timing
9.5 Timing of the code word relative to the television
signal
9.6 Location of the address code signal in the vertical
interval
9.7 Redundancy
9.8 Vertical interval time code waveform characteristics
10 Relationship between LTC and VITC
10.1 Time address data
10.2 Binary group data
10.3 VITC and LTC code word comparison
11 Progressive systems with frame rates greater than
30 frames per second
11.1 Time address of a frame pair in 50 and 60
frames per second progressive systems
11.2 Implementation guidelines (informative)
Annex A (informative) - Explanatory notes
A.1 Time precision
A.2 Leap second corrections
A.3 Frames and time code
Annex B (informative) - Converting time codes when
converting video from 24 frames per second
television systems
B.1 Conversion of time codes
B.1 Conversion of 24/1.001 (23.98) fps video to 30/1.001
(29.97) fps video
B.2 Conversion of 24 fps video to 25 fps video
Bibliography