Apple Wins Patent To Wireless Charging

Apple has been awarded a patent for a new technology that would enable low-powered devices to be charged wirelessly. US patent 8,796,885, filed on 20 April 2012 and granted by the US Patent and Trademark Office on Tuesday, describes a way of using wireless near-field magnetic resonance (NFMR) to transmit power in a computing environment.

This system could wirelessly charge any number of devices within a distance of one meter. It could one day replace the conventional batteries by constantly supplying power to devices. The parent reads:

"In this way, a charging region can be formed around the computer in which the peripheral device (or any other appropriately configured device) can wirelessly receive useful amounts of power from the power supply."

However, according to the filing, some issues such as too many devices available for charging could hamper the effectiveness. The main unit that transmits power using NFMR would be small enough to fit inside a desktop case.

"Such factors can include, for example, the addition of other devices... that require power from the NFMR power supply, [and] obstacles interfering with the direct power channel".

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