Tuesday, April 16, 2019
Mobile television Essay Example for Free
unstable television Essay energetic television is television watched on a teeny-weeny handheld or agile construction. It includes pay TV assistant of process delivered via erratic phone networks or accredited free-to-air via cislunar television come outs. Regular dispel old-hats or special officious TV transmission formats shadow be usaged. Additional features include downloading TV programs and podcasts from the internet and the ability to store programming for later viewing. match to the Harvard Business Review, the growing adoption of smartphones allowed users to watch as much roving video in proficient three days of the 2010 Winter Olympics as they watched throughout the entire 2008 Summer Olympics an increase of 564%. 1DMB in randomness KoreaHistoryThe first pocket-sized wide awake television was sold to the public by Clive Sinclair in January 1977. It was called the Microvision or the MTV-1. It had a 2-inch CRT screen and was also the first television which could pick up signals in double countries. It measured 10215941mm and was sold for less than 100 in the UK and for nigh $400 in the US. The project took all over ten days to develop and was funded by around 1.6 million in British Government grants.23 Mobile TV is one of the features provided by many 3G phones. In 2002, South Korea became the first country in the human race to ca-ca a commercial alert TV CDMA IS95-C network, and mobile TV over 3G (CDMA2000 1X EVDO) also became functional that aforementioned(prenominal) year.In 2005, South Korea also became the first country in the world to work mobile TV when it started satellite DMB (S-DMB) and terrestrial DMB (T-DMB) ser delinquencys on whitethorn 1 and December 1, respectively. Today, South Korea and lacquer argon at the forefront of this developing sector.4 Mobile TV military services were launched by the operator CSL in Hong Kong, March 2006, on the 3G network.5 BT in the United Kingdom was the among the first companies outside South Korea to launch Mobile TV in September 2006, although the service was abandoned less than a year later.6 The same happened to MFD Mobiles Fernsehen Deutschland, who launched their DMB-based service June 2006 in Germany, and stopped it in April 2008.7Also in June 2006, mobile operator 3 in Italy (part of Hutchison Whampoa) launched their mobile TV service, but opposed to their counterpart in Germany this was based on DVB-H.8 Sprint started offering the service in February 2006 and was the first US carrier to offer the service. In the US Verizon Wireless and more deep ATT argon offering the service. In South Korea, mobile TV is largely separate into satellite DMB (S-DMB) and terrestrial DMB (T-DMB). Although S-DMB initially had more content, T-DMB has gained much wider popularity because it is free and included as a feature in nearly mobile handsets sold in the country today.ChallengesMobile TV usage can be divided into three classes Fixed Watched piece of music not moving, possibly moved when not being watched Nomadic Watched while moving slowly (e.g. walking) Mobile Watched when moving quick (e.g. in a car) Each of these pose incompatible challenges.Device Manufacturers challenges Power consumption Continuous receipt, decoding, and display of video requires continuous power, and cannot benefit from all of the types of optimizations that are used to reduce power consumption for data and voice services. Memory To support the large polisher requirements of mobile TV. Currently available memory capabilities lead not be befited for long hours of mobile TV viewing. Furthermore, potential future applications like peer-to-peer video sharing in mobile phones and consumer broadcasting would unimpeachably add to the increasing memory requirements. The existing P2P algorithms wont be enough for mobile devices, necessitating the advent of mobile P2P algorithms. There is one start-up technology that claims patentability on its mob ile P2P, but has not drawn attention from device manufacturers yet. Display Larger and high-resolution displays are necessary for a good viewing experience. Processing power significantly more processor performance is required for mobile TV than that used for UI and simple applications, like browsers and messaging. heart and soul Providers challenges Mobile TV specific content Mobisodes mobile episodes of popular shows which are relatively shorter (3 to 5 minutes), to suit the in all probability viewing habits of the mobile TV user.Digital TVNorth AmericaAs of January 2012, thither are 120 send in the United States broadcasting using the ATSC-M/H Mobile DTV standard a mobile and handheld enhancement to the HDTV standard that improves handling of multipath interference while mobile.9 The inoperative MediaFLO used COFDM broadcast on UHF TV channel 55. Like satellite TV, it was encrypted and controlled by conditional access (provided via the stallular network). It required a subscription for each mobile device, and was limited to the ATT Mobility or Verizon Wireless networks. break up mobile DTV developmentWhile MediaFLO uses the TV spectrum and MobiTV used carrell phone networks,10 mobile DTV (ATSC-M/H) uses the digital TV spectrum. At the National Association of computer programers (NAB) show in April 2007 in Las Vegas, the ATSC and 8VSB methods for delivering mobile DTV were shown. A-VSB (Advanced VSB), from Samsung and Rohde Schwarz, was shown at the previous years show. In 2007, LG, whose Zenith Electronics came up with 8VSB, introduced (with Harris pigeonholing) its Mobile-Pedestrian-Handheld (MPH) system. As the broadcast networks began making their content available online, mobile DTV meant send would collapse an opposite way to compete. Sinclair Broadcast Group testifyed A-VSB in fall 2006, and its KVCW and KVMY were participating in the mobile DTV increase demonstrations at the NAB show. A-VSB had worked in buses at the 2007 Consumer ElectronicsMobile television Show. ION Media Networks started a test station on channel 38, which was to be used for digital LPTV, to use for a single-frequency network (SFN). In few areas, more than one TV transmitter would be needed to cover all areas. Mobile DTV could have been used at that time because it would not affect HDTV reception. A single standard, however, had to be developed.11 At the Consumer Electronics Show in January 2009, the first prototype devices from LG and other manufacturers were demonstrated, including receivers for cars from Kenwood, Visteon and Delphi. It was announced that 63 post in 22 markets would debut the service in 2009. Gannett broadcasting chair David Lougee pointed out that many of those attending the inauguration of Barack Obama would likely hear him but not see him had the sore technology been in place, this would not have been a problem.12In April 2009, the Open Mobile Video Coalition, made up of over 800 broadcast send, selected four t est stations Gannetts WATL and IONs WPXA-TV in Atlanta, and Fisher Communications KOMO-TV and Belos KONG-TV in Seattle. WPXA had begun mobile DTV broadcasting on April 1. The others would start in May.13 Later in 2009, ION said it was making available HDTV, standard definition and Mobile DTV streams using its affiliates in New York City and capital of the United States, D.C. The triple-play supposition was part of an effort to create a Mobile DTV standard. At the time, all those with prototype receivers could pick up the streams. ION Chairman and CEO Brandon Burgess said mobile DTV lets stations pretend beyond the living room and bring live television and real time nurture to consumers wheresoever they may be.14 The Advanced Television Systems Committee started work on mobile DTV standards in May 2007, and manufacturers and sellers worked quickly to make the new technology a reality.The OMVC persuaded LG and Samsung to work together starting in May 2008 so that differing systems (possibly a self-destructing format war) would not delay or kill the technology. Early in July 2009, the ATSC Technology and Standards Group approved the ATSC-M/H standard for mobile DTV which all members green-lighted October 15. The public could be using the new devices by 2010, though watching TV on cadre phones seemed unlikely in the near future since call off manufacturers did not yet include that capability. The technology was expected to be used for polls and even voting.1516 By the end of the year, the ATSC and the Consumer Electronics Association began identifying products meeting the standard with MDTV.17 Paul Karpowicz, NAB Television Board chairman and president of Meredith Broadcast Group, said This milestone ushers in the new era of digital television broadcasting, giving local anaesthetic TV stations and networks new opportunities to reach viewers on the go.This will introduce the power of local broadcasting to a new generation of viewers and provide all-importan t emergency alert, local give-and- labour and other programming to consumers across the nation.16 Later in July, the first multi-station tests began in Washington, D.C., while single stations in New York City and Raleigh, North Carolina already offered mobile DTV. The OMVC chose Atlantas WATL and Seattles KONG as model stations where product testing could take place. 70 stations in 28 media markets intentned streams by the end of 2009. The Washington test would involve WPXW-TV, WUSA, WDCA, WRC-TV, WHUT-TV, WNUV in Baltimore, and WNVT, a part of MHz Networks, a multicasting service.All of the stations would have two of more channels each, with electronic service guide and alert data among the services. 20 sellers of equipment would use these stations to test using the existing standard, but testing the final standard would come later, and tests by the public would happen in 2010, when many more devices would be ready. Obviously, manufacturing large numbers of the devices could not take place without the final standard. LG, however, began mass-producing chips in June. ION technology vice president Brett Jenkins said, Were really at a fix up like the initial launch of DTV back in 1998.There are almost going to be more transmitters transmitting mobile than receive devices on the market, and thats probably what youll see for the next six to golf club months. Devices would eventually include USB dongles, netbooks, portable DVD players and in-car displays.18 White House officials and members of Congress saw the triple-play concept in an ION demonstration on July 28, 2009 in conjunction with the OMVC.1920 Another demonstration took place October 16, 2009 with journalists, industry executives and broadcasters riding around Washington, D.C. in a bus with prototype devices. Included were those who would be testing the devices in the Washington andBaltimore markets in January 2010.21 On August 7, 2009, BlackBerry service began on six TV stationsWISH-TV in Indianapolis WAVY-TV in Hampton Roads, Virginia KRQE in Albuquerque, New Mexico WANE-TV in Fort Wayne, Indiana WALA-TV in Mobile, Alabama and KXAN-TV in Austin, Texas. 27 other stations will eventually offer the service, and LIN TV, which developed the BlackBerry service, has an iPhone application planned.20 By October, 30 stations were airing mobile DTV signals, and that number was expected to be 50 by year-end. Also in the same month, FCC chair Julius Genachowski announced efforts to increase the amount of spectrum available to wireless services.16 Also in August, WTVE and Axcera began testing a single-frequency network (SFN) with multiple transmitters using the new mobile standard.The RNN affiliate in Reading, Pennsylvania had used this concept since 2007.22 Richard Mertz of Cavell, Mertz Associates says VHF wont work as well for mobile DTV because a 15-inch antenna or some(a) other solution would be required, although he has heard from people who had no problems. An amplified antenna or hi gher power for the transmitting station would likely be needed, as well as repeater stations where terrain is a problem.23 Lougee, whose company planned testing in its 19 markets in 2010, said the chip designs with the new devices made targeted advertising possible.21 In December 2009, Concept Enterprises introduced the first Mobile DTV tuner for automobiles. Unlike before units, this one will provide a clear picture without pixilation in a fast-moving vehicle, using an LG M/H chip and a one-inch roof-mounted antenna. No subscription wil be required.24Also in December, the Consumer Electronics Association hosted a plugfest in Washington, D.C. to allow manufacturers to test various devices. More than 15 companies, and engineers from different countries, tested four transmission systems, 12 receiver systems, and four software types.1725 On December 1, News Corp. chairman Rupert Murdoch said mobile DTV would be important to the future of all journalism, and he planned to offer TV and possibly newspaper content in this way.26 At the January 2010 Consumer Electronics Show, NAB head Gordon H. Smith disputed the idea that broadcastings days were numbered, calling mobile DTV the proof over-the-air television would continue its popularity. He said people would use cell phones and other devices to watch, and broadcast technology would be the best way to do this. Wireless broadband, which some wanted to replace broadcasting, would not be able to handle the demand for video services.27 IONs Burgess showed off one of the first iPhones equal to(p) of receiving mobile DTV, while IONs Jenkins showed an LG Maze and a Valups Tivit the latter sends signals to the iPod Touch and will soon work with the Google Nexus.28 Sinclair Broadcast Group director of advanced technology Mark Aitken said the mobile DTV concept of multiple transmitters would succor free up spectrum for wireless broadband in rural areas but not large cities.He also explained to the FCC that mobile DTV was the best method for sending out live video to those using cell phones and similar devices.29 The OMVCs Mobile DTV Consumer Showcase began May 3, 2010 and lasted all summer. Nine stations planned to distribute 20 programs, including local and network shows as well as cable programs, to Samsung implication phones. Dell Netbooks and Valups Tivits also received programming.30 On September 23, 2010, Media General began its first MDTV service at WCMH-TV in Columbus, Ohio and had plans to do the same a month later at WFLA-TV in the Tampa Bay, Florida area and five to seven more stations in its portfolio.31On November 19, 2010, a joint venture of 12 major broadcasters, known as the Mobile gist Venture, announced plans to upgrade TV stations in 20 markets representing 40 per centum of the United States people to deliver live video to portable devices by the end of 2011.32 Brian Lawlor, a Scripps TV senior vice president, said that, in September 2011, Scripps stations would offer an app allo wing people with an iPhone or iPad to see emergency teaching (e.g. weather bulletins) in the event of a power outage.33 In 2012, a number of stations plan to conduct tests of the Mobile extremity Alert System (M-EAS), a system to deliver emergency information via mobile DTV.34 In January, 2012, the MCV announced that MetroPCS would offer MCVs Dyle mobile DTV service.Samsung planned an Android phone capable of receiving this service late in 2012.35 At the end of 2012, Dyle was in 35markets and capable of reaching 55 percent of viewers.36 At the NAB show in April 2012, MCV announced that 17 additional television stations will launch mobile DTV, bringing the total to 92, covering more than 55% of US homes. Included are stations in three new markets Austin, Texas, Boston, Massachusetts, and Dayton, Ohio.37 In September 2012, WRAL-TV announced rollout of a Mobile Emergency Alert System based around mobile digital television technology.38 A process called Syncbak uses cell phones rathe r than TV spectrum.39References1 2 3 4 Looking for TV Genius? Red Bee Media (http/ / www. tvgenius. net/ blog/ 2011/ 01/ 31/ 4-ways-smartphones-save-tv/ ) Clives achievements (http/ / www. sinclair-research. co. uk/ about-srl. php) Sinclair look for Video and TV gear (http/ / www. retrothing. com/ video_tv/ index. html), Retrothing.com NYTimes.com via Yahoo Finance Mobile TV Spreading in europium and to the U.S. (http/ / biz. yahoo. com/ nytimes/ 080506/ 1194771946810. html?. v=18), May 6, 2008 5 3G UK The service is based on the Golden Dynamic Enterprises Ltd. (http/ / www. 3g. co. uk/ PR/ March2006/ 2732. htm)s VOIR admission (http/ / findarticles. com/ p/ articles/ mi_m0EIN/ is_2006_Dec_4/ ai_n16881105) and follows the 3GPP standard 3G-324 M. The same service is also deployed to Philippines in 2007. 6 ZDnet BT ditches mobile TV service (http/ / news. zdnet. co. uk/ communication theory/ 0,1000000085,39288247,00. htm), 26 July 2007 7 Broadband TV news MFD hands back German T- DMB licence (http/ / www. broadbandtvnews. com/ ?p=4682), May 1, 2008 8 The Register DVB-H rockets ahead in Italy (http/ / www. theregister. co. uk/ 2006/ 07/ 28/ dvbh_success_in_italy/ ), 28 July 2006 9 OMVC announces sizable growth in number of MDTV stations at CES RF content from Broadcast Engineering (http/ / broadcastengineering. com/ RF/ OMVC-mobile-DTV-presence-announces-growth-CES-01192012/ index. html) 10 Thompson, Mark (2010-06-03). mobile tv cell phone networks (http/ / mobitv. com/ technology/ managed-service-platform). transmit Cable. . Retrieved 2010-06-03. 11 Dickson, Glen (2007-04-14). NAB Mobile DTV Hits the Strip (http/ / www. broadcastingcable. com/ article/ 108538-NAB_Mobile_DTV_Hits_the_Strip. php). Broadcasting Cable. . Retrieved 2009-07-21. 12 Dickson, Glen (2009-01-11). CES Broadcasters Mobile DTV Moment (http/ / www. broadcastingcable. com/ article/ 161893-CES_Broadcasters_Mobile_DTV_Moment. php?rssid=20102 q=broadcasters+ mobile+ dtv+ moment). Broadcast ing Cable. . Retrieved 2009-12-03. 13 Dickson, Glen (2009-04-20). NAB 2009 Broadcasters Set Mobile DTV Test Markets (http/ / www. broadcastingcable. com/ article/ 209447-NAB_2009_Broadcasters_Set_Mobile_DTV_Test_Markets. php?rssid=20068q=broadcasters+ set+ mobile+ dtv+ test+ markets). Broadcasting Cable. . Retrieved 2009-12-17. 14 Dickson, Glen (2009-06-29). ION Broadcasts Mobile DTV in N.Y., D.C. Hails Its Digital TV Triple Play (http/ / www. broadcastingcable. com/ article/ 307120-ION_Broadcasts_Mobile_DTV_in_N_Y_D_C_. php?rssid=20068 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-07-02. 15 Dickson, Glen (2009-07-06). ATSC-M/H voted to proposed standard status (http/ / www. broadcastingcable. com/ article/ 307463-Mobile_DTV_is_Almost_Official. php?rssid=20065 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-07-08. 16 Dickson, Glen (2009-10-16). Mobile DTV Standard canonic (http/ / www. broadcastingcable. com/ article/ 358341-Mobile_DTV_Standard_Approved. php?rssid=2 0292 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-10-16. 17 Dickson, Glen (2009-12-16). ATSC Launches Certification Program For Mobile DTV (http/ / www. broadcastingcable. com/ article/ 440764-ATSC_Launches_Certification_Program_For_Mobile_DTV. php?rssid=20102 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-12-17. 18 Dickson, Glen (2009-07-13). exceptional Report Mobile DTV Heats Up (http/ / www. broadcastingcable. com/ article/ 314792-Special_Report_Mobile_DTV_Heats_Up. php). Broadcasting Cable. . Retrieved 2009-07-15. 19 Dickson, Glen (2009-07-22). ION, OMVC Organize DTV Showcase in D.C. (http/ / www. broadcastingcable. com/ article/ 316065-ION_OMVC_Organize_DTV_Showcase_in_D_C_. php?rssid=20068 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-07-22. 20 Eggerton, John (2009-08-07). LIN TV Develops Blackberry App For Mobile TV Service (http/ / www. broadcastingcable. com/ article/ 326796-LIN_TV_Develops_Blackberry_App_For_Mobile_TV_Service. php?q=digital+ tv). Broadcasting Cable. . Retrieved 2009-08-11. 21 Eggerton, John (2009-10-16). OMVC Does Mobile DTV Tour (http/ / www. broadcastingcable. com/ article/ 358415-OMVC_Does_Mobile_DTV_Tour. php?rssid=20103 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-10-23. 22 Dickson, Glen (2009-12-18). WTVE Tests SFN For Mobile DTV (http/ / www. broadcastingcable. com/ article/ 441031-WTVE_Tests_SFN_For_Mobile_DTV. php?rssid=20065 q=digital+ tv). Broadcasting Cable. . Retrieved 2010-01-13. 23 Jessell, Harry A. (2009-09-24). Digital VHF Needs A PowerBoost (http/ / www. tvnewscheck. com/ articles/ 2009/ 09/ 24/ daily. 2/ ). TVNewsCheck. . Retrieved 2009-10-15. 24 Gilroy, Amy (2009-11-09). for the first time Mobile DTV Car Tuner At $499 (http/ / www. twice. com/ article/ 388144-First_Mobile_DTV_Car_Tuner_At_499. php/ ). TWICE. . Retrieved 2009-11-10. 25 Dickson, Glen (2009-12-02). Mobile DTV Picks Up Speed (http/ / www. broadcastingcable. com/ article/ 394993-Mobile_DTV_Picks_Up_Speed. php?rssi d=20068 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-12-03. 26 Eggerton, John (2009-12-01). Murdoch Says Mobile TV Is Key to Future (http/ / www. broadcastingcable. com/ article/ 391233-Murdoch_Says_Mobile_TV_Is_Key_to_Future. php?rssid=20070 q=digital+ tv). Broadcasting Cable. . Retrieved 2009-12-03. 27 Dickson, Glen (2010-01-07). CES 2010 Broadcasters fluff Mobile DTV Progress (http/ / www. broadcastingcable. com/ article/ 442953-CES_2010_Broadcasters_Tout_Mobile_DTV_Progress. php?rssid=20068 q=digital+ tv). Broadcasting Cable. . Retrieved 2010-01-13. 28 Dickson, Glen (2010-01-09). NAB Shows Off New Spectrum Applications (http/ / www. broadcastingcable. com/ article/ 443352-NAB_Shows_Off_New_Spectrum_Applications. php?rssid=20068 q=digital+ tv). Broadcasting Cable. . Retrieved 2010-01-13.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment