120970107021 Communication mediums in modern TV Marwadi Education Foundation i Abstract No other electronic media has created as much mass impact as the TV.TV is both a personal as well as family/community device which makes it reach a large population. Obviously the immense popularity of TV has resulted in an unprecedented growth of TV viewing as well as technology. From the simple TV, today one can have a smart TV with varying features satisfying all sections of society. Not only have the TV signals been converted from analog to digital, today one has high definition TV, the IPTV, the dbs TV available. This gives an overview of the communication mediums in modern TV With the development in compression techniques and bandwidth efficient modulation techniques digital transmission has become a reality. Digital TV has removed the line of distinction between the computer and TV and merged TV and computing because of the digital representation of image and video. Digital TV also called as Direct Broadcast Satellite (DBS) TV and Direct to Home (DTH) TV. It is broadcasted using satellite system, where before transmission the signals which may originate from various sources are converted to digital, compressed, time division multiplexed and modulated before transmitting on uplink to the satellite transponder. The receiver unit at home of the user has an important device called Digital Set top box which provides the user the access to various digital content. IPTV or Internet Protocol Television is a scheme that uses IP networking protocol to transport data. IPTV differs from terrestrial broadcasting TV as IPTV is interactive that is two way user sends his requests and based on that receives the services whereas terrestrial broadcasting TV is one way. Management in Terrestrial broadcasting TV is almost nil whereas IPTV is fully managed including the billing, also the streaming in terrestrial TV systems is simultaneous whereas in IPTV systems it is in bundles.
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120970107021 Communication mediums in modern TV
Marwadi Education Foundation i
Abstract
No other electronic media has created as much mass impact as the TV.TV is both a personal as well as
family/community device which makes it reach a large population. Obviously the immense popularity of TV
has resulted in an unprecedented growth of TV viewing as well as technology. From the simple TV, today one
can have a smart TV with varying features satisfying all sections of society. Not only have the TV signals
been converted from analog to digital, today one has high definition TV, the IPTV, the dbs TV available. This
gives an overview of the communication mediums in modern TV
With the development in compression techniques and bandwidth efficient modulation techniques digital
transmission has become a reality. Digital TV has removed the line of distinction between the computer and
TV and merged TV and computing because of the digital representation of image and video. Digital TV also
called as Direct Broadcast Satellite (DBS) TV and Direct to Home (DTH) TV. It is broadcasted using satellite
system, where before transmission the signals which may originate from various sources are converted to
digital, compressed, time division multiplexed and modulated before transmitting on uplink to the satellite
transponder. The receiver unit at home of the user has an important device called Digital Set top box which
provides the user the access to various digital content.
IPTV or Internet Protocol Television is a scheme that uses IP networking protocol to transport data. IPTV
differs from terrestrial broadcasting TV as IPTV is interactive that is two way user sends his requests and
based on that receives the services whereas terrestrial broadcasting TV is one way. Management in Terrestrial
broadcasting TV is almost nil whereas IPTV is fully managed including the billing, also the streaming in
terrestrial TV systems is simultaneous whereas in IPTV systems it is in bundles.
120970107021 Communication mediums in modern TV
Marwadi Education Foundation ii
Acknowledgment
It is needed a great pleasure to express my thanks and gratitude to all those who helped me. No serious and
lasting achievement or success, one can ever achieve without the help of friendly guidance and cooperation of
so many people involved in the report.
I am very thankful to my guide Prof. Hemang Kothari, the person who makes me to follow the right steps
during a seminar work. I express my deep sense of gratitude to for his guidance, suggestions and expertise at
every stage. Apart from that his valuable and expertise suggestion during documentation of my report indeed
help me a lot.
Thanks to my friend and colleague who have been a source of inspiration and motivation that helped to me
during my seminar work. I would heartily thankful to head of our computer department Prof. Jay Teraiya to
give me an opportunity to work over this topic and for their endless and great support. And to all other people
who directly or indirectly supported and help me to fulfill my task.
And at last but not least, I would be grateful towards my parents and friends who had supported a lot and
provided inspiration and motivation to go in this area.
HARSH MEHTA
120970107021
120970107021 Communication mediums in modern TV
Marwadi Education Foundation iii
Table of Contents
Abstract.............................................................................................................................................................. i
Acknowledgment............................................................................................................................................... ii
List of Figure ......................................................................................................................................................iv
Chapter 2: DIRECT BROADCAST SATELLITE ............................................................................................................2
2.1 What is dbs? ..................................................................................................................................................2
2.2 Components involved in dbs...........................................................................................................................3
Chapter 4: VIDEO COMPRESSION .........................................................................................................................8
4.5 Mpeg-2 Video Compression............................................................................................................................8
5.1 Triple Play Service ........................................................................................................................................ 10
5.2 Triple Play Setup Using ADSL Modem And Splitter ......................................................................................... 10
5.3 Features Does IPTV Offer.............................................................................................................................. 12
5.4 Advantages Of Iptv....................................................................................................................................... 15
5.5 Disadvantages Of Iptv.................................................................................................................................. 15
5.6 Future of Iptv............................................................................................................................................... 15
120970107021 Communication mediums in modern TV
Marwadi Education Foundation iv
List of Figure
Figure 2.1 Direct broadcast satellites............................................................................................................... 2
Figure 2.2 Components involved in dbs .......................................................................................................... 3
Figure 3.4 Direct broadcast satellite television................................................................................................ 7