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MediaFLO was a technology developed by Qualcomm for transmitting audio, video and data to portable devices such as mobile phones and personal televisions, used for mobile television. In the United States, the service powered by this technology was branded as FLO TV. Broadcast data transmitted via MediaFLO includes live, real time audio and video streams, as well as scheduled video and audio clips and shows. The technology could also carry Internet Protocol datacast application data, such as stock market quotes, sports scores, and weather reports.〔Qualcomm press release on "Live Datacasting", 05Apr2006, http://www.qualcomm.com/press/releases/2006/060405_mediaflo_usa_demonstrates.html〕 In October 2010, Qualcomm announced it was suspending new sales of the service to consumers.〔(Qualcomm suspends Flo TV sales ) - Reuters, Oct 5 2010〕〔(FLO TV Doomed By Easier, Free Alternatives ) - MediaPost, Oct 5 2010〕 In December 2010, AT&T announced that it will purchase Qualcomm's FCC licenses in the 700 MHz band.〔http://news.yahoo.com/s/nm/20101220/tc_nm/us_qualcomm_spectrum_att AT&T to buy Qualcomm's spectrum licenses for $1.93 billion〕 FLO TV discontinued service on March 27, 2011. ==Overview== The "FLO" in MediaFLO stood for ''Forward Link Only'',〔(Origins of "FLO" name; main page, FLO Forum website )〕 meaning that the data transmission path is one way, from the tower to the device. The MediaFLO system transmitted data on a frequency separate from the frequencies used by current mobile telephone networks. In the United States, the MediaFLO system used frequency spectrum 716-722 MHz, which had previously been allocated to UHF TV channel 55.〔01Nov2004 Qualcomm press release regarding 700 MHz spectrum usage for MediaFLO -http://www.qualcomm.com/press/releases/2004/041101_mediaflo_700mhz.html〕〔Dailywireless.org- http://www.dailywireless.org/2007/01/07/verizon-launching-mediaflo/〕 FLO was standardized within ETSI as TS 102 589,〔ETSI TS 102 589 "Forward Link Only Air Interface; Specification for Terrestrial Mobile; Multimedia Multicast," V1.1.1 (2009-02) http://webapp.etsi.org/action/PU/20090210/ts_102589v010101p.pdf〕 and has components standardized within the Telecommunications Industry Association (TIA 1099, 1102, 1103, 1104, 1120, 1130, 1132, 1146 and 1178.) MediaFLO was a competitor to the Korean T-DMB, the Japanese 1seg and the European DVB-H standards. Qualcomm conducted MediaFLO technical trials internationally, with the intention of forming partnerships with existing multi-channel content providers and service operators, but has since discontinued development. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「MediaFLO」の詳細全文を読む スポンサード リンク
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