Two companies in Japan have created new lines of devices capable of powering small electronics using electricity from various radio and wireless signals in their environments. The first was developed cooperatively by Tokyo Electron Device and Powercast in the U.S., and can draw up to 2.5 milliamperes out of 800 MHz cell phone signals.
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You may already be familiar with the Powermat wireless charging technology, especially since it has been available on the open market for some time. The trouble is that you had to buy those $40 cases before you could charge your cell phone, portable gaming device, and other items with the Powermat. That has now changed. […]
Many cell-phone users have taken to using hands-free headsets to avoid the microwave radiation the devices emit, but the electrical wires that connect the headsets to the phones can also act as antennas for microwaves. A headset that connects a cell phone via infrared light waves sidesteps the radiation problem. Read more from the source. […]