1. HD
All eyes toward what's new
In the world of satellite broadcasting
and often attract our minds with the
development of technology in the world
of terrible await him constantly new.
Our conversation today about a new
technology in the world of satellite hear
about it, but most of us do not see
it because they
need the possibilities of another kind.

2. The onset of high-quality service broadcasting HD :
Began high-quality television technology in
the emergence and development in 2003 in
Asia (Japan, South Korea, China), and in the United
States equipped with Direct TV, Dish Network, as well
as terrestrial broadcasting. And TV Aztecain
Mexico and Brazil, TV Globo.
And during the Olympic Games in 2004 has
been patina compete live demonstration by the 10
companies which send
NBC - Network Seven-Channel 10-TV Globo ..
And for the European continent had an appointment
with the TV high quality with the channel of the
European «Euro 1080» and was opened in
late December daylight in January 2004 where it
began broadcasting the concert New Year's Day and
that was the initiative of
the company Alfacam specialized in the production of
TV (screens) Compatible System (TVHD) .

3. TV. HD

4. And talk about television to receive the user of
this service is:
High-quality television is a new
technology in image compression format and
audio format or MPEG2/DVB-S MPEG4/DVB-
S1
This system allows the pressure in
the transmission companies the opportunity to
broadcast more channels at a lower cost,
It also allows the user to view the
full image dimensions to the increase in the
scope of the visual image
And higher quality as in the sound.

5. Receivers used

6. Features high-quality television TVHD :
1) degrees of clarity TV different high-quality HDTV Resolution .
Can TV high-quality display image with 4 degrees of clarity 480i-480p-720p-
1080p-1080i and increases the degree of clarity with the increase in the
number listed, and is a standard HDTV, - is the degree to 1080p-720p and
needs the TV high quality waves broadcast and send quickly, and capacity (Band
large or Band Width) amounted to 19,30 Mbps and is five times as many current
broadcast standard (Standart Signals) .
2) the dimensions of the screen HDTV Screen Ration or TVHD
Frame cran) .
Depends TV current (Standart Signals) to display the image on the screen with
dimensions of 4/3
And this loses the scenes about 3/1 is offered, while supports HDTV to display
the image on the screen proportions 9:6 and are the same criteria used in the
links to the movies, and this ensures no loss of any part of the image, and in
order to enjoy the quality of higher sound and image We use TV (Plasma) or
(LCD (liquid Crystal Display) .
3) digital audio in high-quality television (HDTV Digital Sound) .
Another advantage of the TV high quality is the digital surround audio, which
can be the receivers of high-quality HD TV Receiver receive and issued five
channels of independent digital audio channels of independent Digital sound 5.1
and this so-called term Dolby (Dolby AC-3) and mean number 5.1 we can in
bringing five speakers, headphones Omametin and two in back and one in the
middle and get the surround sound .

7. Channels using HD technology :

8. Presentation for HD.
Fatma Alaa.
2 nd year.