Apple's New Patent Implies That Its Future Products Can Be Charged Wirelessly Between Each Other

If you run out of iPhone battery while you are on the road and don't have a charger, what should you do? Apple came up with an idea to share the power of other mobile devices to your iPhone via wireless charging technology.

On Thursday, the US Patent and Trademark Office published a patent application file called "inductive charging between electronic devices" submitted by Apple. Two devices, such as tablets and smartphones, can charge each other with their own battery. For instance, an iPhone with a drained battery can be charged with a fully charged iPad.

The patent filed by Apple employs an inductive coil for wireless charging. Unlike most current wireless charging methods, the inductive coil can be used not only to transmit power but also to receives power. It could save the user the trouble of carrying the charger also charging cable or looking for a socket and waiting for charging.

Some schematics also describe the use of such coils in laptops. Among them, the MacBook seems to show the potential location of this coil on the Touchpad and the body. Adding multiple coils to a large device will allow multiple small devices to be charged simultaneously. This is especially useful for those who want to charge both the iPhone and the Apple Watch.

If Apple is going to add this feature to its future products, it will need to set up multiple inductive coils and make sure they switch between the receiving and transmitting states. This means that Apple may need to innovate its hardware. Apple's current wireless charging devices are not available for transmitting, but rather they can use it to receiving power.

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