Overview of Standards and Technical Reports

Overview of ARIB Standards (STD-B68)

1. Overview

Standard Name Time Code Format in the Interface for UHDTV Production Systems
Enactment Date 12.03.2015
General Description

This standard specifies data structure and multiplexing method for timecode transmission in the interface of studio equipment for the ultra-high definition television (UHDTV) signal.

Data structure is a packet structure of 64 bits which is called time information packet, and time code data is transmitted in progressive scanning system of which video frame frequency is 60Hz or 60/1.001Hz. There are user data words (UDW) in the structure of time information packet, and three kinds of data in UDW: time code data, time information data identification code 1 (DBB1) and time information data identification code 2 (DBB2) are specified.

As for multiplexing method, the multiplexing method for time information packet is provided, and multiplexing in case of transmitting by interface provided in STD-B58 is also specified.

2. Amendment History

Ver. Amendment or Enactment Date Amendment summary
2.0 07.27.2017 By expanding the time code format based on SMPTE ST 12-3 that specifies the high frame rate time code, the time code format corresponding to the high frame rate video from 60 Hz to 120 Hz is defined.
1.0 12.03.2015 Enactment

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