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Should You Offer IPTV or Internet TV?
What’s the Difference?
OPASTCO Technical & Marketing SymposiumOctober 22 2008October 22, 2008
(605) 995-1777FAX: (605) 995-1778
Larry Thompson, PEChief Executive Officer2211 N. MinnesotaMitchell, SD 57301
Agendag
• Video Basics• The Internet & IP• IPTV • Internet TV• What’s next?
Page 2
Information Transmission
• Information Must Converted to be Converted t b C tibl ith th M dito be Compatible with the Medium– Voice -> PCM -> TDM
Video > QAM > Coax– Video -> QAM -> Coax• Various Methods of Conversion
Improve Efficiency– Improve Efficiency– Allow Processing– Provide for Error CorrectionProvide for Error Correction
Page 3
Information to Transmit
• Communications Networks Transmit Many F f I f tiForms of Information– Voice
Video– Video– Web Pages– DocumentsDocuments– Telemetry Signals– Music– Text Messaging
Page 4
The Internet
• Widespread Use of the Internet has Made the I t t P t l (IP) th T i i fInternet Protocol (IP) the Transmission of Choice
Global Access– Global Access– Inexpensive Transport– Adapted to use with time-sensitive trafficAdapted to use with time sensitive traffic
Page 5
IP – Some of the Basics
Page 6
History of the Internety
• Created by US Department of Defense in 1969
• Wanted a communication system that could not be destroyed by a catastrophic event
Page 7
Internet Historyy• 1957 ARPAnet
Th h f th iThe geography of the growing ARPANET in June 1975. The network has 57 nodes.
Page 8
OSI Model
• No Network Discussion is Complete without M ti i th OSI M d lMentioning the OSI Model
• OSI = Open System InterconnectionD fi ki f k f i l i– Defines a networking framework for implementing protocols
– Uses seven layersUses seven layers
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OSI Model
Translating and Coding
Policingo c g
Data broken down into manageable chunks
Adds addressing information
Data is packaged into frames
Page 10
What is IP?
• Internet Protocol (IP)– Method (or protocol) by which data is sent from one
device to another• Each computer on a network (such as the• Each computer on a network (such as the
Internet)– At least one IP addressAt least one IP address– Unique ID(s)
• Information (email, Web page, video, etc.) isInformation (email, Web page, video, etc.) is divided into little chunks called packets.
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IP Addressing (Cont)
10110101 . 00111100 . 00001010 . 10001100
First Bits Used to Define the Network
Last Bits Used to Define Client On
NetworkNetworkLike the Zip Code
or CityLike the Name
Note: Larger cities need more bits to i l id tif th i iti
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uniquely identify their citizens.
Optionsp
• Deliver the Packet – Don’t Care about Errors– User Datagram Protocol (UDP)
• If the Packet has Errors, Request Another U til it i C tUntil it is Correct– Transmission Control Protocol (TCP)
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UDP Communications
• UDP – User Datagram Protocol– No guarantee of delivery– When is this useful?
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TCP Communications
• TCP – Connection oriented– Guaranteed delivery– When is this useful?
Hey you! I am gonna send you data
`
PC 2
Hey you! I am gonna send you data
Hold on a second. I am busy
OKPC 1PC 2OK
Okay, go ahead and send
Here ya go! DATA DATA DATA
Hey, I missed part of that last data
No problem. I will re-transmit it
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Okay, now I received it all
Video Basics
Page 16
MPEG-2 Video Frames
• I-FramesC d d i i f ti t l i th f it lf– Coded using information present only in the frame itself
• P-Frames– Coded with respect to the nearest previous I or P Framesp p
• B-Frames– Use both future and past frames as a reference
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The Future of MPEG2 & MPEG4MPEG4
The Future of MPEG2 & MPEG4
10
12
MPEG2 SDMPEG4 SD H.264MPEG4 HD H 264
6
8
Mbps
MPEG4 HD H.264
2
4
01999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Year
Understanding IPTVg
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In Comparison…what is IP Vid (Vid IP)Video (Video over IP)• It should have been called VoIP…but that was
l d t k b th t h lalready taken by some other technology• Myths:
IP id i il bl f i h I– IP video is available for anyone with an Internet connection.
– IP video and Internet video are the same thingIP video and Internet video are the same thing.– IP video is easily hacked and pirated.
• Facts:Facts:– We’re running out of acronyms.
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Video over IP
• IP is just the transport mechanism (or protocol)j p ( p )– MPEG-2 / IP– MPEG-4 / IP
• Provided by a local service provider– Similar to a CATV system
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IPTV Architecture
Page 22
MiddlewareMiddleware
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What’s the Difference?
• IPTV or Internet TV?• If you recall…Internet Protocol (IP) is the
method (or protocol) by which data is sent f t t th th I t tfrom one computer to another on the Internet.
• In this case, video (data) is requested by the computer (STB) and sent via IP which is acomputer (STB) and sent via IP which is a transport method not a transport pipe.
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The difference is the sourcesource…
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IPTV vs. Internet TV
CharacteristicsCharacteristicsIPTV Internet TV
•Video content aggregated by local •Video content aggregated by provider national Internet companies•High quality maintained throughout the network
•Quality of video driven by speed of internet connection
•Subscription service •Typically free or charged per video•Best for live events •Best for on demand content
Page 26
Understanding Internet TVg
Page 27
Internet Video
• Applications or video specifically developed for I t t d l tInternet deployment
• YouTubeF d d F b 2005– Founded February 2005
– 4th most popular English language website>400 Terabytes/day ($1M/day in bandwidth costs)– >400 Terabytes/day ($1M/day in bandwidth costs)
– >100M videos viewed each day– Google paid $1.65BGoogle paid $1.65B
Page 28
You Tube
Page 29
Yahoo Video
Page 30
Blended Offeringsg
• Content developed primarily for broadcast television or theater viewing but also available on the Internet.
J t– Joost– Fancast
ABC– ABC– CBS– NickelodeonNickelodeon– Many, many more
Streaming Video from the Public Internet to your PC?Public Internet to your PC?
Streaming Video to your PC
Internet-Based Movie O tiOptions• Backed by Several Studios
D l d M i t PC• Download Movies to a PC
3000 M i
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3000+ Movies
The Future
Will we be able to tell the difference between a PC and a TV?
Page 37
Don’t Want to Watch TV on Your PC?
User Interface Advancements
More TV Interface Devices F l Lik PC I t fFeel Like PC Interfaces
Page 40
Apple TVpp
Page 41
TiVo
Page 42
Sony Bravia Internet LinkSony Bravia Internet Link
Page 43
HP MediaSmart TVHP MediaSmart TV
Page 44
Verismo Networks POD
Page 45
NetFlix
Page 46
What’s Comingg
• Users will want their content to be accessible h tianywhere, anytime
• Mobile/On-Demand viewing will continue to grow– 16% of American households used the Internet to
watch TV shows online, double from a year ago.watch TV shows online, double from a year ago. • October, 2007 survey by The Conference Board
BUT th i i i i di ill• BUT…their primary viewing medium will continue to be the TV
What’s the Answer?
• Offer local content• Invest in STB’s and Middleware with the
capability to access video from multiple sources
• Provide services that are easily implemented in your network but difficult for othersin your network but difficult for others– Caller ID pop up– Voicemail on TVVoicemail on TV– Maximize Interactivity– Web Integrationg
