US 12,191,681 B2
Method and apparatus for controlling wireless power transmission
Yu Ri Park, Seoul (KR); and Yong Il Kwon, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Jul. 20, 2023, as Appl. No. 18/356,020.
Application 18/356,020 is a continuation of application No. 18/117,631, filed on Mar. 6, 2023.
Application 18/117,631 is a continuation of application No. 17/830,993, filed on Jun. 2, 2022, granted, now 11,626,762, issued on Apr. 11, 2023.
Application 17/830,993 is a continuation of application No. 17/055,404, granted, now 11,381,119, issued on Jul. 5, 2022, previously published as PCT/KR2019/005881, filed on May 16, 2019.
Claims priority of application No. 10-2018-0056166 (KR), filed on May 16, 2018; and application No. 10-2018-0068751 (KR), filed on Jun. 15, 2018.
Prior Publication US 2023/0378818 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 50/60 (2016.01); H02J 7/02 (2016.01); H02J 50/12 (2016.01); H02J 50/20 (2016.01); H02J 50/80 (2016.01); H02J 50/90 (2016.01); H04L 5/00 (2006.01); H02J 50/40 (2016.01)
CPC H02J 50/60 (2016.02) [H02J 7/02 (2013.01); H02J 50/12 (2016.02); H02J 50/20 (2016.02); H02J 50/80 (2016.02); H02J 50/90 (2016.02); H04L 5/0055 (2013.01); H02J 50/402 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A wireless power receiver of receiving power from a wireless power transmitter, comprising:
a receiving part configured to receive wireless power from the wireless power transmitter; and
a main controller configured to generate a signal including an FOD status packet, wherein the main controller transmits a signal including the FOD status packet to the wireless power transmitter;
wherein the main controller receives a first power from the wireless power transmitter when a NAK response indicating that a foreign object is present in a charging area of the wireless power transmitter is received from the wireless power transmitter, or receives a second power from the wireless power transmitter when an ACK response indicating that the foreign object is not present in the charging area of the wireless power transmitter is received from the wireless power transmitter, in response to the FOD status packet;
wherein the main controller receives a signal including information on a result of determining whether the foreign object is present in the charging area from the wireless power transmitter based on information other than information included in the FOD status packet by the wireless power transmitter while receiving the first power or the second power,
wherein the FOD status packet includes a first FOD status packet and a second FOD status packet;
wherein the first FOD status packet includes one of a reference quality factor or a reference peak frequency; and
wherein the second FOD status packet includes the other of the reference quality factor and the reference peak frequency that is different from the first FOD status packet.