Sabtu, 01 Agustus 2009
IPTV (Internet Protocol Television) is a system where digital television service delivered using Internet Protocol over a network infrastructure that includes delivery of broadband connections. general definition of IPTV is television content that, not being delivered through traditional broadcast and cable formats received by the audience through the technology used to network computers. For residential users, IPTV is typically provided in conjunction with Video on Demand and can be combined with internet services such as Web access and VoIP.IPTV usually provided by your service provider using a closed network infrastructure. This closed network approach in competition with the delivery of TV content over the public Internet, called Internet Television. In businesses, IPTV may be used to deliver television content over corporate Lans.
It is important to note that history has a different definition of "IPTV" including elementary stream over IP network transport stream over IP network and a number of the property system. Although (in Mid 2007) is premature to say that there is full consensus of what IPTV should mean, there is no doubt that the most widely used at this time is the definition for one or multiple program transport stream (MPTS) that source by the network operator the same that have direct control or "Final Mile" to the customer's location. [quote required] This enables control over the quality of service guarantees, and also allows service providers to offer increased user experience, such as better program guide, interactive services etc. Official definition approved by the International Telecommunication Union group focus on the IPTV (ITU-T FG IPTV) is as follows:
"IPTV is defined as multimedia services such as television / video / audio / text / graphics / data delivered over IP based networks managed to provide the required level of quality service and experience, security, interactivity and reliability."
In 1994, ABC World News Now was the first television show to be broadcast via the Internet, using CU-SeeMe videoconferencing software.Istilah IPTV first appeared in 1995 with the rules established by the Software Judith Estrin and Bill Carrico. Rules that are designed and built the internet video product named "IP / TV." IP / TV is the MBONE compatible Windows and Unix-based application that moved single and multi-source audio / video traffic, ranging from low to DVD quality, using both unicast and IP multicast RTP / RTCP. The software is written primarily by Steve Casner, Karl Auerbach, and Cha Chee Kuan. Guidelines which is owned by Cisco Systems in 1998. Cisco retains the "IP / TV" trademark. Internet radio company AudioNet after the first live webcasts continue with content from WFAA-TV in January, 1998 and KCTU-LP on January 10 1998.
Kingston Communications, the regional telecommunications operator in the UK, launched KIT (Kingston Interactive Television), an IPTV over DSL broadband interactive TV service in September 1999 after testing various TV and VoD. Plans to add VoD service in October 2001 with Yes TV, VoD content. Kingston is one of the first companies in the world to introduce IPTV and IP VoD over ADSL. In 2006, AT & T launched U-Verse IPTV service, which consists of a national head end and regional video-serving offices. AT & T offers more than 300 channels in 11 cities with more to be added in the year 2007 and beyond. While using IP protocols, AT & T has built a private IP network exclusively for video transport.
IPTV technology is very different with the internet video. Provide internet video services in watching the video, such as the preview movie and webcam. This service is often called "best effort" by the Internet service provider, which does not have a service management "back-to-back" with the considerations layanan.Perbedaannya quality, technology, IPTV more broadly, user friendly (easy to use), and together with the DSL access technology (Digital Subscriber Line) high speed, such as Asymetric Digital Subscriber Line (ADSL2), ADSL2 + and Very High Data Rate Digital Subscriber Line (VDSL). Can be concluded that IPTV offers television service and video signals in addition to the multimedia services by using other internet connections.
One of the benefits system is a fusion of television transmission and IP while using IP infrastructure without the need for additional investment area, and tower / hub transmission, frequency license, engineer, transmission device, and so forth. Next IP network enabling it to broadcast many more functions and content (broadcast).
In its development, the popularity of IPTV is still be discussed there are shortages / kelemahannya. Because it depends with the Internet network can decrease the quality of broadcasting, such as image terutus the broadcast-quality network to drop out because of the less good.
It is important to note that history has a different definition of "IPTV" including elementary stream over IP network transport stream over IP network and a number of the property system. Although (in Mid 2007) is premature to say that there is full consensus of what IPTV should mean, there is no doubt that the most widely used at this time is the definition for one or multiple program transport stream (MPTS) that source by the network operator the same that have direct control or "Final Mile" to the customer's location. [quote required] This enables control over the quality of service guarantees, and also allows service providers to offer increased user experience, such as better program guide, interactive services etc. Official definition approved by the International Telecommunication Union group focus on the IPTV (ITU-T FG IPTV) is as follows:
"IPTV is defined as multimedia services such as television / video / audio / text / graphics / data delivered over IP based networks managed to provide the required level of quality service and experience, security, interactivity and reliability."
In 1994, ABC World News Now was the first television show to be broadcast via the Internet, using CU-SeeMe videoconferencing software.Istilah IPTV first appeared in 1995 with the rules established by the Software Judith Estrin and Bill Carrico. Rules that are designed and built the internet video product named "IP / TV." IP / TV is the MBONE compatible Windows and Unix-based application that moved single and multi-source audio / video traffic, ranging from low to DVD quality, using both unicast and IP multicast RTP / RTCP. The software is written primarily by Steve Casner, Karl Auerbach, and Cha Chee Kuan. Guidelines which is owned by Cisco Systems in 1998. Cisco retains the "IP / TV" trademark. Internet radio company AudioNet after the first live webcasts continue with content from WFAA-TV in January, 1998 and KCTU-LP on January 10 1998.
Kingston Communications, the regional telecommunications operator in the UK, launched KIT (Kingston Interactive Television), an IPTV over DSL broadband interactive TV service in September 1999 after testing various TV and VoD. Plans to add VoD service in October 2001 with Yes TV, VoD content. Kingston is one of the first companies in the world to introduce IPTV and IP VoD over ADSL. In 2006, AT & T launched U-Verse IPTV service, which consists of a national head end and regional video-serving offices. AT & T offers more than 300 channels in 11 cities with more to be added in the year 2007 and beyond. While using IP protocols, AT & T has built a private IP network exclusively for video transport.
IPTV technology is very different with the internet video. Provide internet video services in watching the video, such as the preview movie and webcam. This service is often called "best effort" by the Internet service provider, which does not have a service management "back-to-back" with the considerations layanan.Perbedaannya quality, technology, IPTV more broadly, user friendly (easy to use), and together with the DSL access technology (Digital Subscriber Line) high speed, such as Asymetric Digital Subscriber Line (ADSL2), ADSL2 + and Very High Data Rate Digital Subscriber Line (VDSL). Can be concluded that IPTV offers television service and video signals in addition to the multimedia services by using other internet connections.
One of the benefits system is a fusion of television transmission and IP while using IP infrastructure without the need for additional investment area, and tower / hub transmission, frequency license, engineer, transmission device, and so forth. Next IP network enabling it to broadcast many more functions and content (broadcast).
In its development, the popularity of IPTV is still be discussed there are shortages / kelemahannya. Because it depends with the Internet network can decrease the quality of broadcasting, such as image terutus the broadcast-quality network to drop out because of the less good.
IPTV has several features including:
•IP / TV can be broadcast live or prerecorded digital video programs in education, commercial, etc., and be able to Capturing and transmitting the program from various sources.
•IP / TV can Scheduling / scheduling program in accordance with the needs of owners of information and audience. Viewer can select a program from the listing will see.
•IP / TV services that can provide economical but not compromising with quality services. This is because the technology is bandwidth efficient transmission, the IP multicasting.
•IP / TV supports standard MPEG format (Motion Picturre Experts Group) to provide high quality, full motion video. This feature is in addition to the standard CODEC (compression / decompression) to ensure optimal image quality in accordance with the specification of the application and the available bandwidth.
• When compared with the conventional method tutorial, IP / TV more efficient because it does not need to pay the instructors, the cost of print materials are relatively small, does not need to rent a special seminar room (as IP / TV can be accessed by a table for
each connected in a LAN / WAN .
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