Essay #1

HD Television

What is television? Television is the conversion of moving scenery, and the accompanying sounds, into electrical signals and then transfer these signals and re-converted by the receiver to the visual image formats, according to WikiPedia (High-definition television - Wikipedia, the free encyclopedia 2013).

Television has gone through stages of rapid development since the invention, from motion pictures in black and white and up to the High-definition television addition to three-dimensional technology.

One of the most important media is TV.  Industry has a role in public opinion of the people. One of the primary uses of television for the viewer is entertainment and spends leisure time in addition to access to information and watch the latest news.

TV was invented in 1927 at the hands of inventor Philo Farnsort. Television began broadcasting in the same year. It has become with TV in the twentieth century, possible for people to learn how to send a contact through the air signals mediated by electromagnetic waves, and this process is called wireless connectivity.
By the early twentieth century, wireless operators are able to send words. At the same time, many scientists conducted experiments include sending images. And then developed a Philo Farnzorth the of the United States electronically scan system.

Technology of high-quality TV began development in 2003 in Asia (Japan, South Korea, and China). The Olympic Games in Athens in 2004 were broadcast completely by 10 companies. For the European continent began with the high-quality TV with the channel «Euro 1080 and was inaugurated in late January 2004, where it began broadcasting the ceremony New Year's Eve and it was the initiative of of Alfacam company specializing in the production of TV (screens) Compatible System (TVHD).

High-definition television is a new technology in image compression and audio format MPEG2/DVB-S or format MPEG4/DVB-S1. This system allows companies to pressure transmission opportunity to broadcast more channels at a lower cost, it also allows the user to see the full dimensions of the increase in the scope of the visual image and higher quality as in the sound.

 

The advantages of HD Television:
1) Resolution.
The Standard HDTV, - is the degree to 1080p-720p and needs High-definition television to broadcast and sending waves quickly and Capacity (Bande large or Band Width) amounted to 19.30 Mbps and is five times what it needs the current standard broadcast (Standart Signals).

2) HDTV Sceen Ration or TVHD Frame cran.
High-definition TV depends on displaying the image on the screen of 9:6 proportions, and are the same criteria used in cinemas, and this ensures no loss of any part of the image.

3) HDTV Digital Sound
Another advantage of the High-definition is the digital audio surround, channels of independent Digital sound 5.1 and this is what is called the term (Dolby AC-3), and this feature we can connect five speakers two speakers in the front and two in back and one in the middle and get a voice Circumferential.

"To start with, E-Vision's HD service will offer content from Luxe HD, Fashion TV HD, Showtime HD, Abu Dhabi TV HD and Al Jazeera Sports HD," E-Vision's Principal Executive Officer Humaid Rashid Sahoo told reporters at a Gulf news conference (Kumar, M., & Reporter, S. (n.d.). Business | General. E-Vision to provide high definition television service in UAE 2009)

Some of the channels in the Arab world began processing for broadcast, high definition television systems as a channel Al Jazeera and Dubai, and this means that in the near future TV will move from the current broadcast system, to broadcast high definition system.

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References

High-definition television - Wikipedia, the free encyclopedia. (2013, April 14). Wikipedia, the free encyclopedia. Retrieved April 17, 2013, from http://en.wikipedia.org/wiki/High-definition_television

History of television - Wikipedia, the free encyclopedia. (2013, April 15). Wikipedia, the free encyclopedia. Retrieved April 17, 2013, from http://en.wikipedia.org/wiki/History_of_television

Kumar, M., & Reporter, S. (n.d.). Business | General. E-Vision to provide high definition television service in UAE. Retrieved July 7, 2009, from gulfnews.com/business/general/e-vision-to-provide-high-definition-television-service-in-uae-1.500343

LED LCD vs. plasma vs. LCD | TV and Home Theater - CNET Reviews. (n.d.). Product reviews - Electronics reviews, computer reviews & more - CNET Reviews. Retrieved April 22, 2013, from http://reviews.cnet.com/8301-33199_7-57344058-221/led-lcd-vs-plasma-vs-lcd/

REGZA HD LCD TV/HD DVD WIN. (2007, January 10). REGZA HD LCD TV/HD DVD WIN "PRODUCT OF THE YEAR AWARDS". Retrieved April 29, 2013, from http://search.proquest.com.ezproxy.hct.ac.ae/science/docview/201670760/13DBA389B594786F7BC/1?accountid=1215

Technology of television - Wikipedia, the free encyclopedia. (2013, April 10). Wikipedia, the free encyclopedia. Retrieved April 17, 2013, from http://en.wikipedia.org/wiki/Technology_of_television

What is HDTV? - A Word Definition From the Webopedia Computer Dictionary. (n.d.). Webopedia: Online Computer Dictionary for Computer and Internet Terms and Definitions. Retrieved April 22, 2013, from http://www.webopedia.com/TERM/H/HDTV.html

Wilson, T. V. (n.d.). HowStuffWorks "How HDTV Works". HowStuffWorks "Learn how Everything Works!". Retrieved April 22, 2013, from http://www.howstuffworks.com/hdtv.htm

 

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