As much as we're familiar with wireless power, we know developing a truly contact-free form of charging has a whole raft of extra challenges, such as getting into the sweet spot for power delivery and the potential traffic jam caused by throwing another device into the mix. Sony thinks it has these problems licked through a newly-published patent application. Its method uses location-finding to steer users until they're close enough for the wireless power source to reliably do its job. In some cases, it can use one mobile device to relay power to another, keeping everything fed even if the main power hub is tied up.
Engadget, Sony applies for wireless power patent, wants to daisy-chain your energy
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