Source: http://www.engadget.com/2010/05/17/chinese-scientists-demonstrate-2mbps-internet-connection-over-le/
LED data transmission used to be all the rage -- we fondly remember
beaming Palm Pilot contacts via IrDA. Then we got omni-directional
Bluetooth and building-penetrating
WiFi, and put all that caveman stuff behind us. But now, scientists the world over are
looking to bring back line-of-sight networking, and the latest demonstation has Chinese researchers streaming video to a laptop with naught but ceiling-mounted blue LEDs. The Chinese Academy of Sciences claims to have realized a 2Mbit per second internet connection that transmits data simply by modulating the flicker of the little diodes, and imperceptibly enough to have them serve as room lighting as well.
Like Boston University before them, the Chinese scholars see short-range LED networks controlling smart appliances. It's not quite the gigabit speed you'd get from
laser diodes, but this way you'll get more mileage out of those
expensive new bulbs, eh?
Chinese scientists demonstrate 2Mbps internet connection over LED originally appeared on Engadget on Mon, 17 May 2010 20:22:00 EST. Please see our terms for use of feeds.
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