US 12,322,982 B2
Method and device for controlling power of multiple devices in wireless power transmission system
Minsoo Lee, Seoul (KR); Gyunghwan Yook, Seoul (KR); Jinho Youn, Seoul (KR); Taewook Kwon, Seoul (KR); and Yongcheol Park, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 18/280,375
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Mar. 3, 2022, PCT No. PCT/KR2022/003018
§ 371(c)(1), (2) Date Sep. 5, 2023,
PCT Pub. No. WO2022/186631, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 10-2021-0028333 (KR), filed on Mar. 3, 2021.
Prior Publication US 2024/0055904 A1, Feb. 15, 2024
Int. Cl. H02J 50/40 (2016.01); H02J 50/80 (2016.01); H02J 7/00 (2006.01)
CPC H02J 50/40 (2016.02) [H02J 50/80 (2016.02); H02J 7/00034 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method for establishing out-band communication in a wireless power transfer system, the method performed by a wireless power transmitter and comprising:
transmitting a plurality of capability information to each of a plurality of wireless power receivers through in-band communication, respectively,
wherein each of the plurality of the capability information includes information for whether the wireless power transmitter supports the out-band communication;
establishing the out-band communication with the plurality of the wireless power receivers based on transmitting the plurality of capability information, respectively; and
exchanging power control information for the plurality of the wireless power receivers with the plurality of the wireless power receivers through the out-band communication,
wherein the exchanging the power control information includes performing renegotiation of a power transfer contract.