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Optical information in a flash
Posted: 15 March 2012

It's one thing to use light pulses as a carrier of digital information - that's the basis for fibre-optics broadband. It's even been proposed for wireless data by means of modulating LEDs. This MindBullet refers to that technology, which might be termed LiFi.

But humans are used to absorbing masses of information by sight. And screens output data all around us. What if a smartphone's camera can be programmed to read that data, beyond just recognizing text, but scanning the data sent to the screen pixels and correctly interpreting it? That sounds like a whole new machine to machine communication paradigm to me. Wireless, local and without any interference. Also possibly covert, but easily prevented.

That's exactly the type of thing that Travis Rich is proposing at SxSW with NewsFlash. This TechCentral report has the details.

Light: the final (communications) frontier
15 March 2012
You wouldn’t think Travis Rich was about to disrupt the entire communications industry. A lanky MIT student with sandy brown hair and an easy smile, Rich ...
MindBullet logo GO BEYOND THE LIMITS OF THE WIRELESS SPECTRUM
For free energy and communication at light speed, take a walk on the bright side
Dateline: 15 August 2020
It's amazing how a few bright ideas can shift the world! Two breakthroughs have crept up on us and swept the globe - and cut the cost of connectivity and ...
 
Wolfgang Grulke Innovative perhaps - but in a quite small way (in my view) - but it does not address the basic constraint with mobile communications - completely finite spectrum. That's the basic limit that Haas's approach addresses.
Posted: 15 March 2012 at 19:25
Doug Vining Exactly. Haas is suggesting broadcasts like HD video streaming, while Rich is suggesting app-driven peer to peer communications. Even more innovative in my opinion.
Posted: 15 March 2012 at 15:24
Wolfgang Grulke But that's hardly the broadband that Haas suggests!?
Posted: 15 March 2012 at 12:51
Doug Vining Ah, but Travis Rich suggests the camera can read the data from a screen - any screen - not only a pre-programmed stream of LED pulses!
Posted: 15 March 2012 at 12:37
Wolfgang Grulke That's exactly what the Harald Haas video suggests - using the smart phone camera to read the signals/broadband stream from LED lights.
Posted: 15 March 2012 at 12:32
 
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