Canon Kabushiki Kaisha

Hajime Iwase

Takahiro Shichino

Kazuo Moritomo

Hajime Shimura

Tomoki Hiramatsu

A power transmission apparatus performs wireless power transmission to a power receiving apparatus using at least one of a plurality of coils including a first coil and a second coil disposed at a position closer to the first coil than a position separated from the first coil by a specific distance, and perform object detection by outputting one or more signal for object detection from one or more of the plurality of coils. Signals for object detection are not outputted at a same time from the first coil and the second coil.

Power transmission apparatus, control method of power transmission apparatus, and storage medium

A power transmission apparatus includes a first power transmission unit configured to perform wireless power transmission to a power receiving apparatus in a first region by using at least one of a plurality of coils, a second power transmission unit configured to perform wireless power transmission to a power receiving apparatus in a second region by using at least one of the plurality of coils. In a case where, while the first power transmission unit performs wireless power transmission to a first power receiving apparatus in a common region where the first region and the second region overlap, a second power receiving apparatus is placed in a region of the first region other than the common region, the first power transmission unit stops the wireless power transmission to the first power receiving apparatus and the second power transmission unit performs wireless power transmission to the first power receiving apparatus.

A power transmission apparatus that can wirelessly transmit power to a power reception apparatus via a power transmission coil and communicate with the power reception apparatus determines presence/absence of an object different from the power reception apparatus based on a Q factor of the power transmission coil measured in a phase for performing power transmission. The power transmission apparatus controls whether to execute the determination of presence/absence of the object different from the power reception apparatus based on measurement of the Q factor of the power transmission coil, based on information received from the power reception apparatus through communication that represents whether the power reception apparatus can execute predetermined processing associated with the determination of presence/absence of the object different from the power reception apparatus based on the measurement of the Q factor of the power transmission coil.

Power transmission apparatus, power reception apparatus, control method, and computer-readable storage medium

A management apparatus managing access authority of a communication apparatus to access a resource, the management apparatus receives an authorization request for the access authority; transmits an authorization response generated based on information included in the authorization request; receives a verification request from a communication terminal obtained an operation transfer from the communication apparatus; transmits verification data to the communication terminal as a response to the verification request; accepts access by the communication terminal based on the verification data; and determines whether to permit or reject allocation of the access authority to the communication apparatus. In a case where a plurality of the verification requests are received, the verification data enabling collective instruction to allocate the access authority is transmit.

Growing community of inventors

Kawasaki, Japan

Hajime Iwase