US 12,348,060 B2
Method and device for data communication based on FSK in wireless power transmission system
Jinho Youn, Seoul (KR); and Gyunghwan Yook, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 18/287,818
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Apr. 20, 2022, PCT No. PCT/KR2022/005675
§ 371(c)(1), (2) Date Oct. 20, 2023,
PCT Pub. No. WO2022/225337, PCT Pub. Date Oct. 27, 2022.
Claims priority of application No. 10-2021-0051386 (KR), filed on Apr. 20, 2021; and application No. 10-2021-0074966 (KR), filed on Jun. 9, 2021.
Prior Publication US 2024/0204577 A1, Jun. 20, 2024
Int. Cl. H02J 50/80 (2016.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H04L 27/10 (2006.01)
CPC H02J 50/80 (2016.02) [H02J 50/12 (2016.02); H02J 50/40 (2016.02); H04L 27/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for receiving a wireless power in a wireless power transfer system, the method performed by a wireless power receiver and comprising:
transmitting, to a wireless power transmitter in a negotiation phase, specific request (SRQ) data packet,
wherein the wireless power receiver establishes a power transfer contract with the wireless power transmitter based on the SRQ data packet,
wherein the SRQ data packet is a data packet for a configuration of frequency shift keying (FSK); and
performing, with the wireless power transmitter in a power transfer phase, a communication based on the FSK based on the power transfer contract,
wherein the SRQ data packet includes information related to a number of cycles which make up an FSK bit,
wherein the wireless power receiver decodes the FSK bit based on the FSK using a cycle range which varies depending on the number of the cycles,
wherein the number of the cycles is one of 512, 256, 128, and 64, and
wherein, based on the number of the cycles being 512, the cycle range is 253 to 259, based on the number of the cycles being 256, the cycle range is 126 to 130, based on the number of the cycles being 128, the cycle range is 63 to 65, and based on the number of the cycles being 64, the cycle range is 31 to 33.