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Wuft DTV 2007

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Wuft DTV 2007

  1. 1. Television Grows Up
  2. 2. <ul><li>TV development goes back to a spinning disk with holes invented by Paul Nipkow in 1884! </li></ul><ul><li>Engineers John Baird and Charles Jenkins created entire mechanical television systems for transmitting and receiving images in the 1920’s. </li></ul>
  3. 3. <ul><li>Philo T. Farnsworth and Vladimir Zworykin made great advances in electronic TV. </li></ul><ul><li>By 1939 Zworykin and RCA were ready for regular programming and the New York’s World Fair was the first show they broadcast. </li></ul>
  4. 4. <ul><li>RCA developed a color TV system that was backwards compatible with the monochrome (Black and White) system. </li></ul>
  5. 5. <ul><li>February 18, 2009, full power television stations will stop broadcasting the analog (NTSC) signal and transition to digital broadcasting. </li></ul><ul><li>WUFT-TV is broadcasting a full power digital signal right now! </li></ul><ul><li>You will need a TV set that has a digital TV tuner or purchase a Digital-to-Analog set top box to watch digital TV on your current set. </li></ul>
  6. 6. <ul><li>You can transmit more data consistently over distance and send different types of data. </li></ul>
  7. 7. <ul><li>Using a data compression system called MPEG-2, engineers have found a way to squeeze more data into the 6 Mhz TV channel bandwidth. </li></ul>
  8. 8. <ul><li>The digital TV data stream is an opportunity for Computer Scientists and Engineers to reshape how we think about television. </li></ul>
  9. 9. <ul><li>Thanks to Robert Cringely’s Crash Course on DTV http://www.pbs.org/opb/crashcourse/ </li></ul><ul><li>Also, the Federal Communications Commission http://www.dtv.gov/ </li></ul><ul><li>Images from http://www.myfreehdtv.org/ and http://www.earlytelevision.org/index.html </li></ul>

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