Power supply device, communication terminal device, and non-contact power transmission method
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United States of America Patent
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May 26, 2020
Grant Date -
Apr 26, 2018
app pub date -
Dec 20, 2017
filing date -
Jul 9, 2010
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Abstract
A power supply apparatus including a near-field wireless communication unit that wirelessly communicates with a plurality of communication terminals, a power transmission unit that sets a plurality of resonance frequencies to transfer power in a non-contact manner to each of the plurality of communication terminals, and a control unit that determines a priority level of each of the communication terminals based on identification information received from the communication terminals and determines an amount of power transmitted at each of the resonance frequencies based on the determined priority levels.
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