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Contact UsOverview of ARIB Technical Report (TR-B4)
1. Overview
| TR Number | ARIB TR-B4 |
|---|---|
| Technical Report Name | Safety Zone on a Screen with an Aspect Ratio of 16:9 |
| Enactment Date | 04.22.1997 |
| General Description | This technical report specifies a safety zone in the program production of television broadcasting with an aspect ratio of 16:9, such as digital broadcasting, and provides a guideline. This technical report is applied to the reproduction range of screen representations in television broadcasting with a ratio of 16:9. |
2. Amendment History
| Ver. | Amendment or Enactment Date | Amendment summary |
|---|---|---|
| 3.0 | 03.25.2016 | Addition of parameters regarding a safety zone for UHDV considering the amendment of the ITU Recommendation BT.1848 (Safe areas of wide-screen 16:9 aspect ratio digital productions) in October 2015. The ratio of the parameters for UHDTV is same as for HDTV, considering displaying HDTV images down-converted from UHDTV images. |
| 2.0 | 03.18.2009 | Change of the important information range of a current safety zone provided in Chapter 3 to 90% Addition of specifications of a target safety zone, preparing for decrease of 16:9 CRT receivers, in Chapter 4. Addition of explanations regarding a background of this amendment and the discussion |
| 1.1 | 07.27.2001 | BTS is given as Annex. |
| 1.0 | 04.22.1997 | Enactment |
