テレビ電波の空いた部分を使ってたとえば動物園の動物たちのストリーミング再生が可能だというお話。
これならケーブルも要らないしね。
すでにあるもので対応できるということだ。
BBCより。
Meerkats streamed to YouTube using TV white space
http://www.bbc.com/news/technology-29551379
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The public will be able to find out what meerkats, otters and giant tortoises, housed at London Zoo, get up to when the visitors have left, thanks to new wireless technology.London Zoo is working with UK regulator Ofcom to test so-called TV White Space (TVWS) technology.
TVWS uses gaps in the spectrum assigned for television transmissions.
Videos of the animals will be streamed to YouTube 24 hours a day.
TVWS uses sections of spectrum either left intentionally blank to act as a buffer between TV signals or space left behind when services went digital.
Meerkat Meerkat fans will be able to watch the creatures 24/7
Compared with other forms of wireless technologies, such as Bluetooth and wi-fi, the radio waves can travel longer distances and also travel more easily through walls.
The trials are intended to test white space-enabled devices as well as identify what spectrum is available and the processes needed to minimise the risk of interference.・・・
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