US 12,362,605 B2
Power transmission apparatus, power receiving apparatus, control method, and storage medium
Hajime Shimura, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 13, 2023, as Appl. No. 18/539,100.
Application 18/539,100 is a continuation of application No. PCT/JP2022/021250, filed on May 24, 2022.
Claims priority of application No. 2021-099456 (JP), filed on Jun. 15, 2021; and application No. 2022-067159 (JP), filed on Apr. 14, 2022.
Prior Publication US 2024/0120778 A1, Apr. 11, 2024
Int. Cl. H02J 50/80 (2016.01); H02J 50/20 (2016.01); H04W 24/10 (2009.01); H04W 72/044 (2023.01)
CPC H02J 50/80 (2016.02) [H02J 50/20 (2016.02); H04W 24/10 (2013.01); H04W 72/0473 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power transmission apparatus comprising:
a power transmission unit configured to wirelessly transmit power to a power receiving apparatus via an antenna;
a measurement unit configured to perform measurement processing of measuring at least either of a voltage and a current in the antenna at least at two or more time points of a power transmission-restricted period in which power to be transmitted by the power transmission unit to the power receiving apparatus is restricted;
a control unit configured to perform, in a case where first measurement processing and second measurement processing are performed by the measurement unit, control in such a manner that a processing period related to the first measurement processing and a processing period related to the second measurement processing have lengths different from each other; and
a detection unit configured to detect an object different from the power receiving apparatus, based on a result of the measurement processing, including the first measurement processing and the second measurement processing, performed a plurality of times,
wherein the detection unit detects the object different from the power receiving apparatus in accordance with a fact that, among a plurality of measurement results obtained by the measurement processing, including the first measurement processing and the second measurement processing, performed a plurality of times, the number of measurement results satisfying a predetermined condition is larger than a predetermined number.