|
1.
|
Clear description of the referenced document:
|
|
|
|
|
2.
|
Status of approval:
|
|
|
Approved standard
|
|
3.
|
Justification for the specific reference:
|
|
|
EN 300 743 deals with subtitling system used in IPTV terminal devices.
|
|
4.
|
Current information, if any, about IPR issues:
|
|
|
None known
|
|
5.
|
Other useful information describing the "Quality" of the document:
|
|
|
The document is in existence, in previous versions, from 1997. It is very widely used technology.
|
|
6.
|
The degree of stability or maturity of the document:
|
|
|
Approved and in use for many years.
|
|
7.
|
Relationship with other existing or emerging documents:
|
|
|
None known.
|
|
8.
|
Any explicit references within that referenced document should also be listed:
|
|
|
[1] ISO/IEC 13818-1: "Information technology - Generic coding of moving pictures and associated/
audio information: Systems"./
[2] ETSI EN 300 468: "Digital Video Broadcasting (DVB); Specification for Service Information (SI)/
in DVB systems"./
[3] ITU-R Recommendation BT.601: "Studio encoding parameters of digital television for standard/
4:3 and wide-screen 16:9 aspect ratios"./
[4] ITU-R Recommendation BT.656-4: "Interfaces for digital component video signals in 525-line and/
625-line television systems operating at the 4:2:2 level of Recommendation ITU-R BT.601/
(Part A)"./
[5] ETSI EN 300 743 (V1.2.1): "Digital Video Broadcasting (DVB); Subtitling systems".
|
|
9.
|
Qualification of
ETSI:
|
|
|
ETSI is recognized under the provisions of ITU-T Recommendations A.5 and A.6. Qualifying information is on file at TSB.
|
|
10.
|
Other (for any supplementary information):
|
|
|
None
|
