Battery life for electronic devices is limited and users do not always have easy access to fixed or mobile power sources to recharge. The location of a power source may also limit the user’s ability to easily use their device. Users may start a task on an application on one device, but then want to switch to another device to continue the task as they change context.
This disclosure describes technology that enables a first device to be placed on the display screen of a second device to charge the first device wirelessly. A wireless charging transmission coil is provided on the same side as the display screen of the second device. The second device senses that the first device has been placed and in response, content on the display screen of the second device is automatically mapped seamlessly to the first device or otherwise rearranged. The described techniques also enable touch input from the first device to be mapped to the second device.
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Boovaragavan, Vijayasekaran and Baker, Christopher, "Device-To-Device Charging Through The Display Screen With Seamless User Interface", Technical Disclosure Commons, (November 06, 2019)