DEVICE AND METHOD FOR PERFORMING POWER ALLOCATION AND OUT-BAND ACTIVATION BY USING SHORT-RANGE COMMUNICATION IN WIRELESS POWER TRANSMISSION SYSTEM
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Dec 5, 2024
app pub date -
Aug 15, 2024
filing date -
Aug 15, 2024
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Abstract
A wireless power receiver may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter including a plurality of primary coils by magnetic coupling to the wireless power transmitter at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receivers by using the out-band communication module.
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