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University of Washington engineers have designed a clever new communication system called Wi-Fi backscatter that uses ambient radio frequency signals as a power source for battery-free devices (such as temperature sensors or wearable technology) and also reuses the existing Wi-Fi infrastructure to provide Internet connectivity for these devices…
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> Kurzweil : http://bit.ly/UZQD4N
> University of Washington | News : http://bit.ly/UZRPoS
> Ambient Backster : http://bit.ly/XGtpm6
