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The evolution of HDTV

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  1. Introduction: History
  2. The mechanical television history
    1. Paul Nikpow
    2. John Baird
    3. Charles Jenkins
    4. Vladimir Kosma Zworykin
    5. Philo T. Fransworth
    6. Louis Parker
    7. Marvin Middlemark
  3. Color TV and remote controls
  4. The proposition to bring MUSE to the USA
  5. The HDTV
    1. How does it work ?
    2. HDTV sound
  6. Sources

It all began when a 20year old German student, Paul Nikpow, put forward his theory of the ?rotating disk'. The inventors tried to build a mechanical television system based on either this theory or tried to build an electronic television system by using a cathode ray tube. The invention of the TV didn't happen overnight, it was a result of the contribution of various people spread over a number of years. Below is a history of the development of the Television with reference to the contributors of its development. Paul Nikpow: he was the pioneer in this field and sparked off the development process. He devised the ?rotating disk' or the ?Nikpow disk' in 1884; this could transmit pictures over wires.

[...] It had to be made digital in order to fit into the channels while the Japanese version was Analog. The first demonstration of HDTV in the United States took place in 1981 and generated a great deal of interest. The father of the HDTV in USA is said to be Joseph Flaherty. He is now the senior vice president of the CBS. To help consumers deal with the mounting tide of HDTV-related questions, the FCC created a consumer website http://www.dtv.gov in October 2004. [...]


[...] Examples of true HDTV sources are: 1. Off-air ATSC receivers using HDTV 2. Digital cable Set Top Boxes (STB) that offer HDTV service 3. Digital satellite receivers that offer HDTV service (i.e. DirecTV, DISH Network, et al.) 4. Windows Media High Definition Video 5. HD-DVD and Blu-Ray DVD players Examples of EDTV sources are: 1. DVD players featuring DVI / HDMI outputs (with built-in HDTV scalars) 2. Video image processors (scalers) 3. Digital cable Set Top Boxes (STB) that offer EDTV service 4. [...]


[...] HDTV sound It offers better sound quality as most HDTVs offer Digital Dolby surround Sound which uses five tracks instead of the usual two. In addition to the amazing clarity of the images you could attach a sound system that'll put you right in the middle of the movie. HDTV generally features Dolby Digital 5.1 which means five speakers and one subwoofer. Two speakers in the front and two in the rear, one either above or below the TV and the subwoofer can be placed anywhere. [...]

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