COMPONENT CODEC STANDARDS FOR HIGH-QUALITY DIGITAL TELEVISION

被引：2
|
作者：
WELLS, ND
机构：
[1] BBC Research Department, Kingswood Warren, Tadworth
来源：
ELECTRONICS & COMMUNICATION ENGINEERING JOURNAL | 1992年 / 4卷 / 04期
关键词：
D O I：
10.1049/ecej:19920038
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Work towards defining standards for digital television transmission codecs has been proceeding for many years. A draft specification for 140 Mbit/s coding using blanking removal and differential pulse code modulation is given in CCIR Recommendation 721. A draft specification for a codec operating at 30-45 Mbit/s and using the discrete cosine transform has been defined by the European Telecommunications Standards Institute. The paper briefly reviews bit-rate-reduction techniques and describes the 140 and 34 Mbit/s codecs.
引用
收藏
页码：195 / 202
页数：8
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