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ITU-R BT.1120-2 HDTV演播信号的数字接口
标准号 BT.1120-2     登录可关注该标准
中文名称 HDTV演播信号的数字接口
英文名称 Digital interfaces for 1 125/60 and 1 250/50 HDTV studio signals
发布日期 1998-11-01
标准状态 标准的状态、替代、引用关系等信息只对网员开放,请登录
摘要 The ITU Radiocommunication Assembly,
considering
a) that in the scope of Recommendation ITU-R BT.709, studio standards for HDTV have been developed for 1125/60 and 1250/50, which contain systems related to conventional television and systems with square pixel common image format including progressive scanning;
b) that Recommendation ITU-R BT.709 contains the following HDTV studio standards:
for 2:1 Interlaced scanning and related to conventional television systems:
?C 1125 total line, 2:1 Interlaced scanning, 60-field/sec, 1035 Active line standard;
?C 1250 total line, 2:1 Interlaced scanning, 50-field/sec, 1152 Active line standard.
for 2:1 Interlaced scanning and Common Image Format (1080 x1920):
?C 1125 total line, 2:1 Interlaced scanning, 60-field/sec, 1080 Active line standard;
?C 1250 total line, 2:1 Interlaced scanning, 50-field/sec, 1080 Active line standard.
for 1:1 Progressive scanning and Common Image Format (1080 x 1920):
?C 1125 line, 1:1 Progressive scanning, 60-frame/sec, 1080 Active line standard;
?C 1250 line, 1:1 Progressive scanning, 50-frame/sec, 1080 Active line standard.
In Recommendation ITU-R BT.709, the Common Image Format (1080 x 1920) is given as a preferred format for new installations, where interoperability with other applications is important. Work is being directed with the aim of reaching a unique worldwide standard;
c) that a whole range of equipment based on the above systems has been developed or is being developed and is commercially available now or soon, including all that necessary for broadcasting chains and for industrial applications;
d) that many programs are being produced in the above systems using the above equipments and that in the development of broadcasting and other services there is an increasing need for HDTV production installations;
e) that the use of digital technology and digital interconnection is highly desirable to reach and maintain the level of performance required for HDTV;
f) that there are clear advantages for establishing interface specifications for HDTV production installations
页数 36
全文上线日期 1998-11-01
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