Published on July 3, 2017 by University of Washington Computer Science & Engineering
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University of Washington engineers present the first battery-free cellphone design that consumes only a few micro-watts of power. The new design can sense speech, actuate the earphones, and switch between uplink and downlink communications, all in real time. The system developed by researchers from the Allen School of Computer Science & Engineering and the UW Department of Electrical Engineering optimizes transmission and reception of speech while simultaneously harvesting power which enables the battery-free cellphone to operate continuously.

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87 Comments on "Battery-free Cellphone"

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Troy Colon
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Troy Colon
24 days 13 hours ago

This easy method works for nearly all kinds of old/dead batteries too. You can bring car, phone, laptop, AA, AAA, alkaline, and cordless power tool batteries back to life [Check Details Here==>paper.dropbox.com/doc/Reconditioning-Any-Type-of-Dead-Battery-znFRbqzq5jpI3ZJjZKXX1 ].

Ahmed Raza
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Ahmed Raza
1 month 24 days ago

Please guide me how can i buy this sell phone or from where i buy this phone reply me hurry if someone knows about the phone📱

PROJECT ZOOGUNNER
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PROJECT ZOOGUNNER
2 months 10 days ago

What's next? A Machine that Prints letters on paper when you type them?This Technology will Doom us all!

Joe Kelly
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Joe Kelly
3 months 14 days ago

& just as sure as the inventor of time travel was whisked away in a dark chopper…this guy & his toy are long gone by now.

{Afandi Harahap}
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{Afandi Harahap}
4 months 11 days ago

can it play games

Cabrio Driving In The Alps
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Cabrio Driving In The Alps
4 months 12 days ago

That's a nonsense, nothing else.

Richard Kothencz
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Richard Kothencz
4 months 12 days ago

is it only me who can't see any new technology here, just combined the availabe ones?

Leon Hiemstra
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Leon Hiemstra
4 months 13 days ago

hard to believe. I don't see the photodiodes nor RF receivers on the pcb. Is it hidden at the bottomside?

Che Ban
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Che Ban
4 months 15 days ago

<iframe width="560" height="315" src="www.youtube.com/embed/5f5JJTmbO4U" frameborder="0" allowfullscreen></iframe>

James Sawyer
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James Sawyer
4 months 21 days ago

2017 you failed us.

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