A PRESENTATION ON INTERNET PROTOCOL TELEVISION
IPTV is a system used to deliver digital television services to the consumers who are registered subscribers for this system. Often, this service is provided together with Video facility on demand. In addition to this, there is provision to include Internet services such as web access and Voice over Internet Protocol (VoIP). In cases when internet service is also provided, it may be called Triple Play. IPTV, essentially has two components: Internet Protocol (IP): the format of packets and the addressing scheme for a network. Television (TV): specifies the medium of communication that operates through the transmission of pictures and sounds. INTRODUCTION
PURPOSE OF IPTV Unlimited Possibilities Cost –Multicast replacing broadcast REAL VoD Ability to search the web for a movie Triple Play –combining Voice, Video and Data Interactive communication with the audience Interactive communication between consumers using IM PVR (Personal Video Recorder) –accessible from anywhere provides all digital, two ways connected, unlimited channels, and personalized TV.
IPTV’S IMPACT: Content Convergence Interactivity And e-commerce capabilities are also made possible. IPTV enhances the TV offer and delivers in a new way to provide better experience to watch TV in a :- Simple Personalized Advanced Media TelecomsIT Cable TV Voice Teleco Data ISP Triple-Play Convergence
WORKING OF IPTV Digitization - Converting Video Signals and Audio Signals to Digital Signals Audio Digitization Video Digitization
Digital Media Compression - Gaining Efficiency Sending Packets
Gateways Connect the Internet to Standard Televisions Transmission:- IP Television channel transmission is the process of transferring the television media from a media server or television gateway to an end customer. It is done by two ways:- Unicast Multicast
IPTV Unicast Transmission IPTV Multicast Transmission
IPTV NETWORK ELEMENTS Made up of four major elements IPTV COMPONENTS: Video Head End: point in network at which linear (broadcast TV) and on-demand (movies) content captured and formatted for distribution over IP network. Video Server: computer-based devices connected to large storage systems. Video content, previously encoded, is stored either on disk or in large banks of RAM.
The Access Network: link from the service provider to the individual household. The Home Network: distributes the IPTV service throughout the home. The Service Provider Core/Edge Network: The grouping of encoded video streams, representing the channel lineup, is transported over the service provider’s IP network. Middleware: The IPTV enabler: Middleware is the software and hardware infrastructure that connects the components of an IPTV solution. It is a distributed operating system that runs both on servers at the Telco location and on the STBs. Set Top Box (STB)/Terminal: An IP set top box is an electronic device that adapts IP television data into a format that is accessible by the end user. Content Security: A conditional access system (CAS) allows for the protection of content.
ARCHITECTURE
VIEWING IP TELEVISION A multimedia computer is a data processing device that is capable of using and processing multiple forms of media such as audio, data and video. Analog television adapters are devices designed to convert digital broadband signals into analog television formats (e.g. NTSC or PAL). IP televisions are television display devices that are specifically designed to receive and decode television channels through the Internet without the need for adapter boxes or media gateways. Contain embedded software that allows them to initiate and receive television through the Internet using multimedia session protocols such as SIP. Multimedia mobile telephones contain embedded software that allows them to initiate and receive multimedia communication sessions through the Internet.
QUALITY OF SERVICE (QOS) Audio Quality :- Audio Quality is the ability of the system to recreate the key characteristics of an original audio signal. Video Quality :- Video quality is the ability of a display or video transfer system to recreate the key characteristics of an original video signal.
IPTV VS. CONVENTIONAL TV TRANSMISSION TECHNIQUES
IPTV and Cable TV implementation architecture
APPLICATIONS The applications for IPTV deployment are to provide the delivery of digital broadcast television and also the selected VoD. Such application enables service providers to offer the so-called “triple play,” which is video, voice and data. FEATURES AND SERVICES Anywhere Television Service Global Television Channels Personal Media Channels Addressable Advertising
IPTV is not just about Television over IP network Entertainment Interactive Communication Provide information & entertainment in a single-source solution − Scalable − Easy-to-use − Customizable − Personal − World-class Customer Experience Any Device Anywhere Anytime
INTERACTIVE SERVICES Video Surveillance Home Security (child safety, entry/ exit monitoring) Business security (can tie to access control systems) IP cameras, Remotely accessible & manageable Communication Voice over IP Video Conferencing Add camera & microphone and TV becomes complete communication solution T-Commerce Order products & services directly from TV screen using point & click Order direct from ads & in-program options Interactive options, incl views, zoom in/out Virtual PC Add keyboard + mouse and TV becomes PC Applications & data stored & accessed remotely at data center Anywhere, anytime access to personal files via web portal
ILLUSTRATION: Food Recipe On-demand View Cooking programs On-demand Instantly Get Recipe on SMS or
ILLUSTRATION: Voting
IPTV SERVICES EVOLVES Extended TV Viewing Blended and Interactivity Personalized Contents Flexibility on media viewing Record and watch Live TV and Video On Demand Access Blended Services and communication from the TV screen (Web, music, photo,…) Access to personalized content and services from mobile, PC, and TV seamlessly You can access your media and communication services over any devices, anytime, anywhere
ADVANTAGES In IPTV, a new level of interactivity among Internet, voice, and video can be established. Numerous channels can be beamed to the viewer. IPTV can be very helpful in providing web-based training to courses. Ability for digital video recorders (DVRs) to record multiple broadcasts at once. IPTV viewers will have full control over functionality such as rewind, fast-forward, pause, and so on. The real advantage of IPTV is that it uses Internet protocols to provide two-way communication for interactive television. One application might be in game shows in which the studio audience is asked to participate by helping a contestant choose between answers. Another application would be the ability to turn on multiple angles of an event, such as a touchdown, and watch it from dual angles simultaneously using picture-in-picture viewing. One can also receive Web service notifications while watching IPTV for things such as incoming and instant messages.
Among the diverse areas within an IPTV solution, which are to be addressed, it is obvious that the standardization process related to it is in its early stages. CONCLUSION In order to achieve this, the IPTV market must make itself free from closed solutions, which may hamper the following three goals: innovation, development, and competition. To make IPTV successful and perfect as per expectations, it has to guarantee the interoperability between all the building blocks.
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