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April 28, 2017 12:00 pm

Apple Patent Hints At Wirelessly Charging Your iPhone Via Wi-Fi Routers

According to AppleInsider, "Apple is experimenting with medium- to long-distance wireless charging technologies that could one day allow users to charge up their iPhones with nothing more than a Wi-Fi router." From the report: Detailed in Apple's patent application for "Wireless Charging and Communications Systems With Dual-Frequency Patch Antennas" is a method for transferring power to electronic devices over frequencies normally dedicated to data communications. In its various embodiments, the invention notes power transfer capabilities over any suitable wireless communications link, including cellular between 700 MHz and 2700 MHz, and Wi-Fi operating at 2.4 GHz and 5 GHz. More specifically, the document's claims apply to millimeter wave 802.11ad spectrum channels currently in use by the WiGig standard, which operates over the 60 GHz frequency band. Theoretically, the proposal opens the door to wire-free charging from in-home Wi-Fi routers to cellular nodes and even satellite signals. Of course, amplitude in a wireless system is normally a function of distance. Like conventional wireless charging techniques, Apple's design requires two devices -- a transmitter and receiver -- to function. Each device contains one or more antennas coupled to wireless circuitry capable of making phase and magnitude adjustments to transmitted and received signals. Such hardware can be employed in dynamic beam steering operations.

at Slashdot.


Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/0PHCSUuT8Ss/apple-patent-hints-at-wirelessly-charging-your-iphone-via-wi-fi-routers

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