Canon Kabushiki Kaisha

Shuya Kaechi

Daisuke Kamiwano

A communication apparatus comprises: a communication unit configured to establish a connection with an external apparatus and communicating data with the external apparatus in order to execute a predetermined service; and a control unit configured to control the communication unit so that the communication apparatus operates as a first role in the case of connecting to a first external apparatus operating as a second role, and so that the communication apparatus operates as the second role in the case of connecting to a second external apparatus operating as the first role, wherein the control unit controls the communication unit so that the communication apparatus operates as the second role to connect to the second external apparatus operating as the first role in between times when the communication apparatus carries out a process for operating as the first role and periodically transmitting a predetermined signal.

Communication apparatus for executing service, control method and storage medium therefor, and communication system

An electronic device comprises a connector that receives power supplied from a power supply apparatus, a charging unit that charges a battery using power received from the power supply apparatus, and a testing unit that tests a power supply capability of the power supply apparatus by passing current supplied from the power supply apparatus to a load unit in a state where receiving power from the power supply apparatus is limited by the charging unit.

Electronic device and control method

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

An electronic apparatus that can receive power from an external apparatus connected via an interface and comprises an interface having a first terminal and a second terminal. The apparatus determines whether or not a time difference between a time of detection of a first voltage at a first terminal and a time of detection of a second voltage at a second terminal is smaller than or equal to a predetermined value, determines a type of the external apparatus by executing first connected device detection if the time difference is smaller than or equal to the predetermined value, and executing second connected device detection different from the first connected device detection if the time difference is larger than the predetermined value, and performs power reception control based on a result of determination of a type of the external apparatus.

Electronic apparatus and control method thereof

A communication apparatus, comprises a power receiving unit configured to be capable of wirelessly receiving power from another apparatus, a charging unit configured to be capable of charging a secondary battery using the power received from the another apparatus, a wireless communication unit configured to be capable of performing wireless communication with the another apparatus, a rectification smoothing unit configured to rectify and smooth the power received from the another apparatus, and output the rectified and smoothed power, a suppressing unit configured to suppress a transient voltage fluctuation in an output voltage of the rectification smoothing unit, and a driving unit configured to drive the suppressing unit so that the output voltage of the rectification smoothing unit generated by the power received from the another apparatus does not exceed a first voltage.

Communication apparatus and control method thereof

An electronic device has a connecting unit configured to connect to an external device by cable and receive external power from the external device, and a control unit configured to execute a predetermined function using the external power. The electronic device logically determines a power supply capability of the external device connected to the connecting unit, and determines whether the external device is capable of power supply at the logically determined power supply capability. If it is determined that the external device is not capable of power supply at the logically determined power supply capability, a prohibited state in which the predetermined function cannot be executed using the external power is set to the control unit.

Electronic device and control method therefor

A power receiving apparatus that is capable of communicating with a power transmitting apparatus with wireless power transmission capability, the power receiving apparatus comprises: a detection unit configured to detect a state of the power receiving apparatus; a communication unit configured to, in order to establish connection to other apparatuses including the power transmitting apparatus, transmit information indicating an existence of the power receiving apparatus to the other apparatuses, or receive information indicating an existence of the other apparatuses from the other apparatuses; and a control unit configured to control transmission and reception of the information, wherein in order to enable establishment of connection to the power transmitting apparatus, the control unit switches between transmission and reception of the information based on whether the state of the power receiving apparatus is a predetermined state.

Power receiving apparatus that wirelessly receives power, control method of the same, and storage medium

A power receiving apparatus includes a first antenna, a second antenna, and a control unit that executes control to exclusively and alternately execute power reception processing of wirelessly obtaining power from a power transmission apparatus via the first antenna and communication processing of wirelessly communicating with the power transmission apparatus via the second antenna, where, during execution of the communication processing, the control unit executes control to set a resonance frequency of the first antenna to be a frequency lower than a carrier frequency band of the second antenna for the execution of the communication processing.

Power receiving apparatus for wirelessly receiving power from external apparatus

A first advertise signal from a first external apparatus is received. A connection request is transmitted to the first external apparatus in response to the received first advertise signal. A connection is established with the first external apparatus, and a predetermined function is executed by using the established connection. In a case where the first advertise signal is received and an error relating to the predetermined function occurs before a connection with the first external apparatus is established, a connection request is transmitted to the first external apparatus to establish a connection with the first external apparatus and transmits a notification indicating that the error occurred.

Communication apparatus, control method therefor, and recording medium

A communication apparatus comprises: a power supply; a communication unit configured to operate by using power from the power supply or a communication partner; an operation unit; a control unit configured to execute software for controlling processing of each unit of the communication apparatus, wherein the control unit starts processing to stop execution of the software if an operation to the operation unit is started while the control unit is executing the software; a power supply control unit configured to control power that is supplied to the control unit, in accordance with a state of as operation with respect to the operation unit; and a disabling unit configured to disable the communication unit, based on the state of the operation with respect to the operation unit and an execution state of the software.

Communication apparatus, control method for same, and storage medium

In various embodiments, a power supply apparatus for wirelessly transmitting electric power includes a power supply unit configured to output a wireless signal of a predetermined frequency to supply power to a power receiving apparatus, a communication unit, and a control unit, wherein the control unit receives data from the power receiving apparatus via the communication unit, and controls an output of the power supply unit based on the data, and wherein the control unit detects intensity of a harmonic component of the wireless signal output from the power supply apparatus, and controls the output of the power supply unit such that the detected intensity of the harmonic component becomes equal to or less than a predetermined value.

Power supply apparatus for wirelessly supplying power to external apparatus, control method for power supply apparatus, and recording medium

A wireless communication device includes an antenna unit including an antenna pattern; a magnetic member arranged over the antenna unit; and a device that acts as a non-contact type integrated circuit, wherein a ratio of an area of the magnetic member to an area of a region including an outermost periphery of the antenna pattern is 90% or more, and wherein a resonant frequency of the wireless communication device has a deviation from a target resonant frequency falls within a range of &#x2212;1.720% to +4.334%.

Wireless communication device and electronic apparatus

A communication apparatus comprises a close proximity wireless communication unit which is able to perform close proximity wireless communication with an external apparatus; a power control unit which starts control of power supply of the communication apparatus when the close proximity wireless communication unit receives electromagnetic waves from the external apparatus; and a control unit which executes shutdown processing for reducing power to each block controlled by the power control unit, wherein when the shutdown processing is executed, the control unit disables the close proximity wireless communication unit before start of the shutdown processing.

Communication apparatus controlling close proximity wireless communication unit, control method thereof and storage medium

There is provided a communication apparatus comprising an antenna. A communication unit is able to use external power that is generated by receiving a signal from an external apparatus via the antenna, thereby transmitting a response to the signal that is received from the external apparatus to the external apparatus. A deactivation unit deactivates, in a case where the external power is generated by receiving the signal from the external apparatus via the antenna, supply of the external power from the antenna to the communication unit. A control unit performs control so as to interrupt deactivation of supply of the external power from the antenna to the communication unit by the deactivation unit.

Communication apparatus and method for controlling the same

A target selection apparatus capable of quickly carrying out selection processing when selecting a desired target according to a target detection result and carrying out image processing on the target. An image corresponding to image data is displayed on a display unit. A drawing line is drawn on the image displayed on the display unit. A target included in the image data is selected based on the drawing line. In response to the drawing line becoming a closed curve, the selected target is determined.

Growing community of inventors

Tokyo, Japan

Shuya Kaechi