Title :
Component codec standards for high-quality digital television
Author_Institution :
BBC Res. Dept., Tadworth, UK
fDate :
8/1/1992 12:00:00 AM
Abstract :
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 author briefly reviews bit-rate-reduction techniques and describes the 140 and 34 Mbit/s codecs
Keywords :
codecs; encoding; pulse-code modulation; television standards; video equipment; 140 Mbit/s; 30 to 45 Mbit/s; CCIR Recommendation 721; DCT; DPCM; ETSI; European Telecommunications Standards Institute; bit-rate-reduction techniques; blanking removal; codec standards; differential pulse code modulation; discrete cosine transform; encoding; high-quality digital television;
Journal_Title :
Electronics & Communication Engineering Journal
