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The Digital Television Revolution

The Digital Television Revolution. Understanding the change. Created and Presented by Tracy Crouthamel. The Basics of Transmitting a TV Signal. Transmission steps Video camera Rasterizes Horizontal / Vertical sync. The Beauty of a Digital Picture. Resolution Pixels Refresh rate 525

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The Digital Television Revolution

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  1. The Digital Television Revolution Understanding the change Created and Presented by Tracy Crouthamel

  2. The Basics of Transmitting a TV Signal • Transmission steps • Video camera • Rasterizes • Horizontal / Vertical sync

  3. The Beauty of a Digital Picture • Resolution • Pixels • Refresh rate • 525 • Digital vs. analog • Interlaced vs. progressive scanning Interlaced Progressive

  4. Analog Vs. Digital Picture Analog Digital

  5. The Beauty of a Digital Picture • Our vision • Analog and digital ratios • 4:3 • 16:9

  6. Analog Vs. Digital Sound • CDs • MP3 • 5.1 Surround Sound • Records • Cassette • 2 channel stereo Analog Digital

  7. Freedom! • Compressed information • Multicasting • Public safety • Interactive TV

  8. Free TV No more static All or nothing

  9. Summation • Resolution • Pixels • Progressive scanning • 16:9 ratio • Multicasting • No more static • Interactive TV Analog TV stinks

  10. The More You Know How Television Works http://www.youtube.com/watch?v=uBm9ZyIg3I0

  11. Sources • http://electronics.howstuffworks.com/dtv.htm • http://www.pbs.org/opb/crashcourse • http://akamaipix.crutchfield.com/ca/learningcenter/home/gaming/aspect_ratio_compare.jpg • http://www.fcc.gov/cgb/consumerfacts/digitaltv.html • http://en.wikipedia.org/wiki/Digital_television_transition • http://www.dtv.gov/consumercorner.html • http://www.life123.com/technology/home-electronics/hdtv/how-does-digital-tv-work.shtml

  12. Sources • http://www.dtvanswers.com/dtv_how.html • http://www.dtvtransition.org/index.php?option=com_content&task=view&id=14&Itemid=27 • http://www.answerbag.com/articles/How-Does-Digital-TV-Work/5f6a1438-9691-b282-1c7a-3a5b95313199 • Straubhaar, Joseph and Robert LaRose. Media Now: Understanding Media, Culture, and Technology. Belmont, CA: Wadsworth, 2009.

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