Canon Kabushiki Kaisha

Daisuke Kamiwano

Shuya Kaechi

Yasuhiro Hamada

A communication apparatus comprises a memory storing instructions which cause to function as: a first communication unit configured to communicate with an external apparatus using a first communication method in which directionality of radio waves is variable; a second communication unit configured to communicate with the external apparatus using a second communication method in which directionality of radio waves is variable; and a control unit configured to control the first communication unit and the second communication unit so as to, after communication using the first communication method has been established, switch communication with the external apparatus to communication using the second communication method, wherein the control unit controls directionality of second radio waves in the second communication method, using information regarding directionality of first radio waves used in the first communication method.

Communication apparatus that uses plurality of communication methods, method for controlling the same, and storage medium

A wireless communication apparatus includes a first control unit operating with power supplied from a secondary battery and operable in a case where a detected voltage of the secondary battery is greater than or equal to a second threshold voltage, a second control unit operating independent from the first control unit and with power supplied from the secondary battery, and a wireless communication unit controlled by the second control unit operating with power supplied from the secondary battery to communicate with a different wireless communication apparatus, wherein, in a case where a detected voltage of the secondary battery is lower than a first threshold voltage that is lower than the second threshold value, the second control unit ends transmission of a packet and communication connection.

Wireless communication apparatus wirelessly communicating with another wireless communication apparatus, control method of wireless communication apparatus, and storage

A communication apparatus that can be driven with a battery includes: an authentication unit arranged to authenticate a battery attached to the communication apparatus; and a wireless communication unit arranged to communicate with an external apparatus via a wireless network. The wireless communication unit of the communication apparatus is arranged to output a result of authentication by the authentication unit to the external apparatus via the wireless network.

Growing community of inventors

Kawasaki, Japan

Daisuke Kamiwano