Goodbye to batteries? [AP-S Turnstile]

This article presents a patented wireless energy-harvesting scheme. The system consists of two main components: A dime-sized Powercastertrade transmitter circuit, running on conventional current [i.e., plugged into an AC outlet], broadcasts an FCC-approved low-power radio signal at a predetermined frequency. An even smaller Powerharvestertrade receiver circuit, embedded in almost any low-power device, harvests the energy to recharge or even replace the device´s battery. The receiver chip can power any of thousands of different devices with innumerable applications. One transmitter can wirelessly charge any number of devices within its effective range.