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Digital Television (DTV)

Digital Television (DTV). DTV. “ Any technology that uses digital techniques to provide advanced television services such as high-definition TV (HDTV), multiple standard definition TV (SDTV), and other advanced features and services. ” --FCC, 1998.

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Digital Television (DTV)

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  1. Digital Television (DTV)

  2. DTV • “Any technology that uses digital techniques to provide advanced television services such as high-definition TV (HDTV), multiple standard definition TV (SDTV), and other advanced features and services.” --FCC, 1998

  3. Over-The-Top Television (OTT) • An increasingly popular means of accessing television and video content that is independent of traditional over-the-air (OTA) television and multichannel video programming distributors. • Hulu • Netflix • Internet Delivered Television (IDTV)

  4. Mobile Phones and DTV

  5. Explosion of Video • 60 hours of video are uploaded every minute on YouTube. • Over 4 billion videos are viewed each day

  6. Two High-Definition Cameras Sony F65 CineAlta $65,000 Samsung HMX-W200 $110

  7. Analog to Digital • Global Movement • No universal standard • For consumer: drop in prices • For provider: more investment Probably the most significant change in broadcast television since the introduction of color in the 1960’s.

  8. Conversion in the United States • December 31, 2006 was the deadline for conversion from analog to digital television broadcasting • It couldn’t be met • So George W. Bush extended it until February 17, 2009. • It finally happened in June of 2009

  9. Conversion Elsewhere • Most developed countries will convert by 2015 • Japan • A leader in the technology of DTV • Europe • Should have been completed by 2012

  10. HDTV • Represents the highest pictorial and aural quality that can be transmitted through the air.

  11. SDTV • Standard Definition TV • Can be transmitted along with or instead of HDTV • 5 SDTV channels in the space of 1 HDTV channel • “Multicasting” • Often used during the day • Primetime uses HDTV

  12. Pixels

  13. What about the “I” and the “P”? • Broadcast formats are described with the number signifying the number of scanning lines and a letter indicating where the lines are scanned in order (progressive) or with alternating odd and even lines (interlaced) • 1080i • 720p • Theoretically, the “p” will give a smoother image

  14. DTV Formats

  15. Progress of United States Stations • 1998 – 24 stations • 2002 – 1315 stations • 2006 – 1698 stations • 2009 – Almost all of them

  16. Push and Pull • Broadcast is a “push” technology • Sends signal/feed to millions of viewers at once • IDTV is a “pull” technology • Viewer decides when to access a feed

  17. Consumers • 68% of U.S. homes have DTV • Prices have come down dramatically • Midsized TVs sold after March 1, 2006 must have a DTV tuner • Plug-and-play standard eliminates need for set-top box

  18. Display Types • Direct-view CRT • Plasma Display • Liquid Crystal Display (LCD) • Digital Light Processing Projector • Liquid Crystal on Silicon

  19. Consumer • Male • 35-54 years old • $100,000 a year income

  20. Things to Ponder • Digital television will eventually replace analog transmission • DTV cost is steadily getting lower • DTV picture is either perfect or not there • About 33% of households have HDTV sets as of Nov 2008 (double that of 2006) • Third of this third own more than one • Manufacturers are the key

  21. Factors Affecting Diffusion • Battle over digital spectrum • Diffusion of new digital technologies

  22. Analog versus Digital • Spectrum assigned to television can be “repacked” • Analog is one “wave” and is susceptible to interference

  23. Diffusion Battle • Broadcasters need less spectrum • But they don’t want to give it up • Even for money • NAB has a campaign against giving up spectrum • Government wants spectrum • Auction it off for billions of dollars

  24. mDTV • Mobile digital television • Growing…..

  25. 3D TV • Passive • Uses polarized glasses • Active • Uses battery glasses with liquid crystal lenses • Cost/Content are inhibiting factors

  26. What to Expect • More advertising on OTT –TV venues • Cutting the cable and tossing the dish • Two-screen viewing • Watch TV with a cell phone in hand • 3D – if price is right • Get rid of the glasses • More convergence between television and computers and mobile devices

  27. Digital Television (DTV)

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