Abstract: An electronic apparatus connectable to an external electronic apparatus and storing at least one power supply for operating the external electronic apparatus includes a connection interface that is connected to the external electronic apparatus, and at least one processor configured to control the electronic apparatus. Power of the at least one power supply is supplied to the external electronic apparatus via the connection interface. The at least one processor controls the external electronic apparatus by using power received from the external electronic apparatus via the connection interface.

Abstract: A device includes a load test unit that determines whether to permit startup of the device using power of a battery supplying power to the device, and a control unit that starts up the device in a case where it is determined to permit startup of the device using the battery and a first voltage is requested of a power supply apparatus to restrict power received from the power supply apparatus. The control unit cancels the restriction of the received power in a case where a notification of completion of connection is received from the power supply apparatus, after the device is started up and a second voltage is requested of the power supply apparatus.

Abstract: An electronic device includes a connection unit and a control unit. The control unit enables a power supply path for supplying power from a first battery connected to an external device to the electronic device and enables a power supply path for supplying power from a second battery connected to the external device to a predetermined functional unit of the external device, in a case where the first battery or the second battery connected to the external device is not charged. The control unit disables a power supply path for supplying power from the second battery connected to the external device to the predetermined functional unit and enables a power supply path for supplying power from the electronic device to the first battery or the second battery, in a case where the first battery or the second battery connected to the external device is charged.

Abstract: A power receiving apparatus includes a power receiving unit and a control unit. The power receiving unit receives a first power from a power supply apparatus via a connection unit. The control unit determines whether or not authentication information including identification information of the power supply apparatus is authentic, and determines whether or not the power supply apparatus has passed a compliance test based on the identification information. The power receiving unit is allowed to receive a second power greater than the first power, in a case where the authentication information is authentic and the power supply apparatus has passed the compliance test.

Abstract: An electronic device includes a requesting unit that requests a power supply apparatus to supply power, and a determination unit that determines whether the power supply apparatus is an authentic apparatus. In a case in which the determination unit determines whether the power supply apparatus is the authentic apparatus, after the requesting unit has requested the power supply apparatus to supply first power and the determination unit determines that the power supply apparatus is the authentic apparatus, the requesting unit then requests the power supply apparatus to supply second power higher than the first power.

Abstract: An electronic device having a cable includes a storage unit and a communication unit. The storage unit stores first authentication information used for an authentication communication directed to the electronic device and second authentication information used for an authentication communication directed to the cable. The communication unit is capable of responding to an authentication communication directed to the electronic device and is also capable of responding to an authentication communication directed to the cable.

Abstract: An electronic device includes an authentication unit and a control unit. The authentication unit performs an authentication communication with an external device for determining whether or not the external device is a predetermined device. The control unit requests a second power that is greater than a first power from the external device, in a case where the external device is determined to be the predetermined device and the external device is determined to be a no-additional-cable-required type of power supply device.

Abstract: An electronic device includes a monitoring unit that monitors a voltage of a first terminal that receives power supplied from a power supply apparatus, and a control unit that performs control so as to stop the power supply from the power supply apparatus if a voltage variation per unit time of the first terminal is not less than a first predetermined value or the voltage of the first terminal is not less than a second predetermined value.

Abstract: A power receiving apparatus includes a power receiving unit and a control unit. The power receiving unit receives a first power from a power supply apparatus via a connection unit. The control unit determines whether or not authentication information including identification information of the power supply apparatus is authentic, and determines whether or not the power supply apparatus has passed a compliance test based on the identification information. The power receiving unit is allowed to receive a second power greater than the first power, in a case where the authentication information is authentic and the power supply apparatus has passed the compliance test.

Abstract: An electronic device includes a connection unit and a control unit. The control unit enables a power supply path for supplying power from a first battery connected to an external device to the electronic device and enables a power supply path for supplying power from a second battery connected to the external device to a predetermined functional unit of the external device, in a case where the first battery or the second battery connected to the external device is not charged. The control unit disables a power supply path for supplying power from the second battery connected to the external device to the predetermined functional unit and enables a power supply path for supplying power from the electronic device to the first battery or the second battery, in a case where the first battery or the second battery connected to the external device is charged.

Abstract: A device includes a load test unit that determines whether to permit startup of the device using power of a battery supplying power to the device, and a control unit that starts up the device in a case where it is determined to permit startup of the device using the battery and a first voltage is requested of a power supply apparatus to restrict power received from the power supply apparatus. The control unit cancels the restriction of the received power in a case where a notification of completion of connection is received from the power supply apparatus, after the device is started up and a second voltage is requested of the power supply apparatus.

Abstract: An apparatus includes a first authentication unit that performs an authentication process for determining whether an external apparatus is a predetermined external apparatus, a second authentication unit that performs an authentication process for determining whether a battery connected to the external apparatus is a predetermined battery, and a control unit that permits the battery to be discharged but restricts the battery from being charged regardless of whether the battery is the predetermined battery, in a case where the external apparatus is not authenticated as the predetermined external apparatus.

Abstract: An electronic device comprises an interface including a first terminal that receives power from an external device and a second terminal for communicating with the external device, and at least one processor and/or at least one circuit to perform the operations of a communication unit that communicates with the external device via the second terminal, and a control unit that controls a connection between the second terminal and a ground, wherein in a case that a state of power received via the first terminal is a predetermined state, the communication unit sends a reset request for stopping the supply of power to the external device, and the control unit controls the connection between the second terminal and the ground from a connected state to a disconnected state.

Abstract: An electronic apparatus connectable to an external electronic apparatus and storing at least one power supply for operating the external electronic apparatus includes a connection interface that is connected to the external electronic apparatus, and at least one processor configured to control the electronic apparatus. Power of the at least one power supply is supplied to the external electronic apparatus via the connection interface. The at least one processor controls the external electronic apparatus by using power received from the external electronic apparatus via the connection interface.

Abstract: An electronic device includes an interface unit to which external devices can be connected, and a control unit. The control unit sets power to a second power greater than a first power after limiting power supplied to the external device to the first power, maintains power supplied to the external device at the second power, in a case where the number of the external devices connected to the interface unit exceeds a predetermined number, and controls power supplied to the external device to be a third power greater than the second power, in a case where the number of the external devices connected to the interface unit is not the predetermined number.

Abstract: An electronic device comprises an interface including a first terminal that receives power from an external device and a second terminal for communicating with the external device, and at least one processor and/or at least one circuit to perform the operations of a communication unit that communicates with the external device via the second terminal, and a control unit that controls a connection between the second terminal and a ground, wherein in a case that a state of power received via the first terminal is a predetermined state, the communication unit sends a reset request for stopping the supply of power to the external device, and the control unit controls the connection between the second terminal and the ground from a connected state to a disconnected state.

Abstract: If apparatuses capable of both power transmission and power reception are connected to each other, power may circulate needlessly between the apparatuses and be consumed. Power control is then performed based on a determined power control policy by providing display for determining a direction of power transfer when needed.

Abstract: An electronic device includes a power supply unit that supplies power received from an external apparatus to the electronic device, a first authentication unit that performs an authentication process for the external apparatus with power supplied from the power supply unit, a second authentication unit that performs an authentication process for a battery with power supplied from the power supply unit when authentication by the first authentication unit has succeeded, and a charging unit that initiates charging the battery with power supplied by the power supply unit when authentication by the second authentication unit has succeeded.

Abstract: An electronic device includes a requesting unit that requests a power supply apparatus to supply power, and a determination unit that determines whether the power supply apparatus is an authentic apparatus. In a case in which the determination unit determines whether the power supply apparatus is the authentic apparatus, after the requesting unit has requested the power supply apparatus to supply first power and the determination unit determines that the power supply apparatus is the authentic apparatus, the requesting unit then requests the power supply apparatus to supply second power higher than the first power.

Abstract: An electronic device includes a monitoring unit that monitors a voltage of a first terminal that receives power supplied from a power supply apparatus, and a control unit that performs control so as to stop the power supply from the power supply apparatus if a voltage variation per unit time of the first terminal is not less than a first predetermined value or the voltage of the first terminal is not less than a second predetermined value.