Patent ID: 11949253
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power trans mission device, comprising:
a power transmitter including a plurality of coils; and
a processor configured to:
wirelessly transmit power to a power reception device through at least one coil among the plurality of coils,
identify a condition indicating a state in which a coil to transmit power related to charging of the power reception device is to be reconfigured,
transmit a coil selection packet (CSP) to the power reception device, lased on satisfaction of the condition,
identify a signal strength packet (SSP) of at least one other coil adjacent to the at least one coil, and
wirelessly transmit power to the power reception device through a coil having a largest SSP among an SSP of the at least one coil and the identified SSP of the at least one other coil.