Policy on Intellectual Property Right (IPR)
PART 1 Time code (up to 60 Hz)
1 Time address representation in 30 and 30/1.001
frame systems
1.1 Time address of a frame
1.2 Non-drop frame
1.3 Drop frame DFT time
1.4 Colour frame identification in NTSC 525/59.94 television system
2 Time address representation in 25-frame systems
2.1 Time address of a frame
2.2 Colour frame identification in PAL 625/50 television systems
2.3 Logical relationship
2.4 Arithmetic relationship
3 Time address representation in 24-frame systems
3.1 Time address of a frame
3.2 Operation at 24/1.001 (23.98) Hz (24/1.001 Hz)
3.3 Operation at 24.0 Hz
4 Time address representation in 50 and 60 frame progressive systems
4.1 Time address of a frame
5 Structure of the time address and control bits
5.1 Digital code
5.2 Time address
5.3 Flag bits
5.3.1 Drop frame flag (29.97 Hz or 59.94 Hz systems only)
5.3.2 Colour frame flag (525/59.94 and 625/50 systems
only)
5.3.3 Binary group flags
5.3.4 Modulation method specific flag
5.4 Use of the binary groups
5.5 Character set not specified and unspecified clock time (BGF2=0,
BGF1=0, BGF0=0)
5.6 Character set not specified and clock time (BGF2=0, BGF1=1,
BGF0=0)
5.7 Eight-bit character set and unspecified clock time (BGF2=0,
BGF1=0, BGF0=1)
5.8 Unassigned binary group usage and unspecified clock time
(BGF2=0, BGF1=1, BGF0=1)
6 Linear time code structure
6.1 Codeword format
6.2 Codeword data content
6.3 Time address
6.4 Flag bits
6.5 Binary groups
6.6 Synchronization word
6.7 Biphase mark polarity correction
6.8 Modulation method
6.9 Bit rate
6.10 Timing of the codeword relative to a television signal
6.11 Television systems reference timing
6.12 25/50-fps television systems reference timing
6.13 23.98/24-fps television system 2 (1920 ΄ 1080)
6.14 Linear time code interface electrical and mechanical
characteristics
6.14.1 Rise/fall time
6.14.2 Amplitude distortion
6.14.3 Timing of the transitions
6.14.4 Interface connector
6.14.5 Output impedance
6.14.6 Output amplitude
6.15 Codeword format
6.16 Codeword data content
6.16.1 Time address
6.16.2 Flag bits
6.16.3 Binary groups
6.16.4 Field mark flag
6.16.5 Synchronization bits
6.16.6 CRC code
6.17 Modulation method
6.18 Bit timing and waveform characteristics
6.18.1 Logic level
6.18.2 Rise/fall time
6.18.3 Amplitude distortion
6.19 Timing of the codeword relative to the line synchronizing
signal
6.19.1 525/59.94 television system
6.19.2 1125/60 television system
6.19.3 625/50 television system
6.20 Location of the address code signal in the vertical interval
6.20.1 525/59.94 television system
6.20.2 1125/60 television system
6.20.3 625/50 television system
7 Relationship between LTC and VITC
7.1 Time address data
7.2 Binary group data
7.2.1 Transferring vertical interval binary group data to
linear binary group data
7.2.2 Transferring linear binary group data to vertical
interval binary group data
7.3 VITC and LTC code word comparison
Annex 1 to Part 1 (Informative) Bibliography
Annex 2 to Part 1 (Informative) Converting time codes when converting video
from 24 fps television systems
1 Conversion of 23.98 fps video to 59.94 fps video
2 Conversion of 24 fps video to 25 fps video
PART 2 Time code ancillary data signal format (up to 60 Hz)
1 Introduction
2 Ancillary time code format (ATC)
3 Format of user data words in ancillary time code packet
4 Transmission of ancillary time code packets
5 Ancillary time code packets location
PART 3 Time code and its ancillary data signal format (greater than 60 Hz)
1 Introduction
2 Representation of Time Address in Time Code
2.1 Super-frame
2.2 Frame identifier bits
2.3 Frame number
2.4 Time Address with Frame Counting of 120 (30x4) and 120 with
Drop-Frame Compensation
2.4.1 Time Address of a Frame
2.4.2 Non-drop frame Uncompensated mode
2.4.3 Drop frame fractional system rate compensated
mode
2.5 Time Address with Frame counting of 100
2.6 Time Address with Frame counting of 72, 96 and 120 (24x5)
3 Structure of the Time Code
3.1 Numeric Code
3.2 Time Address
3.3 Drop frame flag
3.4 Use of the Binary Group
3.5 Codeword Format
3.6 Codeword Data Content
4 Format of Ancillary Time Code Packets
5 Format of User Data Words in Ancillary Time Code Packets
5.1 General
5.2 Distributed Binary Bits (DBB)
5.2.1 DBB1 Payload Type
5.2.2 DDB2
5.3 Mapping of the Time Code Data into Ancillary Data Packets
6 Transmission of Ancillary Time Code Packets
6.1 Transmission of Multiple ATC Packets
6.2 ATC Packet Transmission Rate
7 Ancillary Time Code Packet Location
7.1 Insertion Locations
7.2 Preferred Locations for placement of ATC