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| | High-definition television - Wikipedia, the free encyclopedia |
 | | Historically, the term high-definition television was also used to refer to television standards developed in the 1930s to replace the early experimental systems, although, not so long afterwards, Philo T. Farnsworth, John Logie Baird and Vladimir Zworykin had each developed competing TV systems but resolution was not the issue that separated their substantially different technologies. |
 | | When shown on television in countries using PAL, film must be converted to 25 frames per second by speeding it up by 4,1%. |
 | | Within television studios and other production and distribution facilities, HD-SDI SMPTE 292M interconnect standard (a nominally 1.485 Gbit/s, 75-ohm serial digital interface) is used to route uncompressed HDTV signals. |
| en.wikipedia.org /wiki/High_definition_television (6160 words) |
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