Wireless power transfer system that performs power transfer from determined power transmission device to power receiving device, power transmission device, power receiving device, and control method of wireless power transfer system
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United States of America Patent
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Sep 5, 2017
Grant Date -
Jan 29, 2015
app pub date -
Feb 29, 2012
filing date -
Feb 29, 2012
priority date (Note) -
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Abstract
A wireless power transfer system includes a power receiving device and a plurality of power transmission devices that perform power transfer to the power receiving device. The power receiving device transmits request-power to the power transmission device, the request-power being power the power receiving device requests to be supplied with. The power transmission device, when receiving the request-power from the power receiving device, generates determination reference information based on the received request-power, the determination reference information being information to be used as a determination reference when the power receiving device selects the power transmission device, and transmits the generated determination reference information to the power receiving device. The power receiving device receives the determination reference information, selects the power transmission device from which the power receiving device is to receive power supply, and transmits a power transmission start request to the selected power transmission device.
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