US 11,941,967 B2
Apparatus and method for broadcasting charging error in wireless charging device, method, and system
Jinkwon Lim, Seoul (KR); Minsoo Lee, Seoul (KR); Jingu Choi, Seoul (KR); and Jaehyu Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/794,894
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 29, 2020, PCT No. PCT/KR2020/001338
§ 371(c)(1), (2) Date Jul. 22, 2022,
PCT Pub. No. WO2021/153814, PCT Pub. Date Aug. 5, 2021.
Prior Publication US 2023/0059601 A1, Feb. 23, 2023
Int. Cl. G08B 21/18 (2006.01); H02J 50/10 (2016.01); H02J 50/80 (2016.01)
CPC G08B 21/18 (2013.01) [H02J 50/10 (2016.02); H02J 50/80 (2016.02)] 12 Claims
OG exemplary drawing
 
1. A wireless power receiver comprising:
a power pickup circuit configured to receive a wireless power from a wireless power transmitter by magnetic coupling with the wireless power transmitter having a primary coil at an operating frequency and to convert an AC signal generated by the wireless power into a DC signal; and
a communication circuit configured to perform an out-band communication with the wireless power transmitter using a frequency other than the operating frequency; and
a control circuit configured to process a broadcasting packet received from the wireless power transmitter based on the out-band communication when a reception error of the wireless power occurs.