inductive charger

However unlikely—the United States Patent and Trademark office today published an Apple patent application that details a system of inductively charging an iPad through the Smart Cover. The idea is that rather than plugging in the iPad, the Smart Cover would include an inductive power transmitter that would allow it to pair with an inductive power transceiver embedded into the iPad. The result is the Smart Cover would become a wireless charging station, connecting to an external power source, and allowing you to power your iPad in various positions. Apple also explained that it could use “ambient power gathering devices, such as solar cells, can be used to gather ambient power (such as sunlight) to be stored internally in the flap for later inductive transfer.”

A method for wireless powering a tablet device, comprising: determining if a protective cover is in a closed configuration with respect to the tablet device; enabling a wireless power receiver circuit in the tablet device when it is determined that the protective cover is in the closed configuration with respect to the tablet device; and wirelessly receiving power from a wireless power transmitter associated with the protective cover.

Apple described the advanced Smart Cover as including multiple power transmitters to allow the iPad to charge even when using the case, for example, as a stand to prop up the device. Alternatively, the cover could continue charging the device when in the closed position or when an iPad is placed on top:
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