Acoustic Barcodes Store Data In Sound Waves

NRM: "A group of students at Carnegie Mellon University have created Acoustic Barcodes: a series of etched lines placed on almost any surface that is read by a system via the unique audible waveform given off when an object - like a fingernail or pen - is ran across the notches."

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M_Prime2050d ago

thats actually pretty cool.

however when they showed the display case, a button would be so much easier then that barcode