US 12,230,978 B2
Power transmitting apparatus, power receiving apparatus, control methods thereof, and storage medium
Tomoki Hiramatsu, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 26, 2022, as Appl. No. 17/935,384.
Application 17/935,384 is a continuation of application No. PCT/JP2021/006301, filed on Feb. 19, 2021.
Claims priority of application No. 2020-064203 (JP), filed on Mar. 31, 2020.
Prior Publication US 2023/0015212 A1, Jan. 19, 2023
Int. Cl. H02J 50/60 (2016.01); H02J 50/80 (2016.01)
CPC H02J 50/60 (2016.02) [H02J 50/80 (2016.02)] 10 Claims
OG exemplary drawing
 
1. A power transmitting apparatus comprising:
a power transmitting unit configured to perform wireless power transfer to a power receiving apparatus;
an obtaining unit configured to obtain, from the power reception apparatus, first information on a first parameter which is measured by the power reception apparatus and second information on a second parameter;
a measuring unit configured to measure a Q factor and a third parameter;
a detecting unit configured to perform a foreign object detection based on the measured Q factor; and
a determining unit configured to calculate, after the foreign object detection and before a wireless power transfer phase, a fourth parameter using the obtained first parameter and the measured third parameter, calculate a fifth parameter using the calculated fourth parameter and the obtained second parameter, and perform determination based on the calculated fifth parameter.