Intel Encodes Data In Flickering LEDs (and Shows Off Other Bright Ideas) 65
darien writes "On the day before the Intel Developer Forum opens in San Francisco, Intel has been showing off some of its current research projects, including a system for encoding data in apparently steady light sources, a Kinect-based projected 'touch interface' that works on any surface and an ambitious signage concept that could revolutionise your weekly shop." My favorite thing about light-based networking is that it's the basis of a certain strain of (all too plausible, all too often) conspiracy theory. ("The modern LED 'eco-friendly' light bulb is also a two-way communications device." — easy to believe, since many of them can be. )
Grandad Remembers (Score:2, Informative)
Back in the old days(tm), people claimed to be able to intercept your communications from outside the building by simply having a view of your modem TX RX lights. That was in the days of the 1200 baud modem. Nothing has changed. There are still those that claim the same thing about your high-speed cable modem.