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High definition television (HDTV)

High definition television (HDTV)

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After many years of research and several attempts to introduce HDTV into broadcast systems, HDTV has finally hit the consumer market. It took the combination of several factors to make it happen, the most important of these being the availability of large affordable display devices for consumers. A second important factor was the development of HDTV-capable successors to DVD players. Last but not least, the high compression efficiency of MPEG-4 (AVC) makes it possible to transmit HDTV signals at bit rates that are not much higher than SDTV transmissions were in the early years of MPEG-2. In fact, using DVB-S2 forward error correction (FEC) and modulation, together with MPEG-4 (AVC) compression, makes it possible to transmit HDTV sig nals within a bandwidth equivalent to that of SDTV MPEG-2 compression with DVB-S FEC and modulation.

Inspec keywords: forward error correction; high definition television; digital video broadcasting; audio coding; video coding; digital versatile discs

Other keywords: modulation; MPEG-4 (AVC); DVB-S2; high definition television; HDTV; FEC; MPEG-2; SDTV transmissions; DVD players; forward error correction; DVB-S; broadcast systems

Subjects: High definition television

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