Power supply device, electronic device, control method, and recording medium

• US 9,825,466 B2
• Filed: 01/29/2013
• Issued: 11/21/2017
• Est. Priority Date: 02/01/2012
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Fukaya, Yudai
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Dominique, Emmanuel R
• Application Number:
  US13/753,345
• Publication Number:
  US 20130193756A1
• Time in Patent Office: 1,757 Days
• Field of Search: 307 29
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/0036 using connection detecting circuits H02J7/0034 takes precedence
• CPC Class Codes: H02J 7/00716 in response to integrated charge or discharge current
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A power supply device includes a power supply unit that wirelessly supplies power, a communication unit that communicates with an electronic device, and a control unit that controls the communication unit to transmit a predetermined data to the electronic device based on whether or not the electronic device is connected to an external device supplying power to the electronic device.

Claims

1. A power supply device comprising:

a power supply unit that wirelessly supplies power;

a communication unit that communicates with an electronic device different from the power supply device; and

a control unit that controls the communication unit to transmit predetermined data to the electronic device based on whether or not the electronic device is in a state that enables the electronic device to receive power from an external device through a connection between the electronic device and the external device, the external device being different from the power supply device,

wherein the predetermined data includes one of first data and a second data, the first data is used for causing the electronic device to receive power from the external device, and the second data is used for causing the electronic device to receive power from the power supply device, and

wherein the external device includes a device for supplying power to the electronic device.

2. The power supply device according to claim 1, wherein the control unit that controls the communication unit to transmit the first data to the electronic device if the electronic device and the external device are connected.

3. The power supply device according to claim 2, wherein the control unit continues to communicate with the electronic device after the first data is transmitted to the electronic device.

4. The power supply device according to claim 1, wherein the control unit controls the communication unit to transmit the second data to the electronic device if the electronic device and the external device are not connected.

5. The power supply device according to claim 1, wherein the control unit controls the power supply unit to limit power for supplying to the electronic device if the electronic device and the external device are connected.

6. The power supply device according to claim 1, wherein the control unit controls the communication unit to transmit the predetermined data to the electronic device based on a first level and a second level if the electronic device and the external device are connected, and

wherein the first level indicates a level of power supplied from the power supply device to the electronic device, and the second level indicates a level of power supplied from the external device to the electronic device.

7. The power supply device according to claim 6, wherein the control unit controls the communication unit to transmit the second data to the electronic device if the first level is higher than the second level.

8. The power supply device according to claim 6, wherein the control unit controls the communication unit to transmit the first data to the electronic device if the first level is not higher than the second level.

9. The power supply device according to claim 1, wherein the control unit controls the power supply unit to supply predetermined power to the electronic device if the electronic device and the external device are not connected, and the predetermined power is used for charging a battery.

10. The power supply device according to claim 1, further comprising

a detection unit that detects one or more electronic devices, wherein, if the detection unit detects a plurality of electronic devices, the control unit controls the communication unit to transmit third command to the plurality of electronic devices, and wherein the third command is used for controlling not to receive power from the power supply device.

11. The power supply device according to claim 1, further comprising

a detection unit that detects one or more electronic devices, and wherein the control unit performs a process for controlling the communication unit to transmit the predetermined data if a number of electronic devices detected by the detection unit is changed.

12. The power supply device according to claim 1, wherein the external device is different from a battery.

13. The power supply device according to claim 1, wherein the external device includes an AC adapter.

14. The power supply device according to claim 1, wherein the external device includes a device that can supply power to the electronic device based on Universal Serial Bus (USB).

20. The power supply device according to claim 1,

wherein the control unit that compares a level of power received from the power supply device to a level of power supplied by the external apparatus,

wherein in response to the electronic device being in a state that enables the electronic device to receive power from and the external device and the level of power received from the power supply device being less than the level of power supplied by the external apparatus, the control unit selects the external apparatus to supply power to the electronic device, and

wherein in response to either the electronic device not being in a state that enables the electronic device to receive power from the external device or the level of power received from the power supply device being greater than the level of power supplied by the external apparatus, the control unit selects the external apparatus to supply power to the electronic device.

15. An electronic device comprising:

a connection unit that connects to an external device different from the electronic device;

a power receiving unit that wirelessly receives power from a power supply device different from the electronic device;

a communication unit that communicates with the power supply device; and

a control unit that controls the communication unit so as to transmit predetermined information to the power supply device,

wherein the predetermined information indicates whether or not the connection unit and the external device are connected to each other, a level of power received by the electronic device from the power supply device, and a level of power supplied to the electronic device by the external device, and

wherein the external device includes a device for supplying power to the electronic device via the connection unit.

16. A method for controlling a power supply device, the method comprising:

wirelessly supplying power;

communicating with an electronic device different from the power supply device; and

transmitting predetermined data to the electronic device based on whether or not the electronic device is in a state that enables the electronic device to receive power from an external device through a connection between the electronic device and the external device, the external device being different from the power supply device,

wherein the predetermined data includes one of first data and a second data, the first data is used for causing the electronic device to receive power from the external device, and the second data is used for causing the electronic device to receive power from the power supply device, and

wherein the external device includes a device for supplying power to the electronic device.

17. A method for controlling an electronic device, wherein the electronic device includes a connection unit that connects to an external device different from the electronic device, the method comprising:

wirelessly receiving power;

communicating with a power supply device different from the electronic device; and

transmitting predetermined information to the power supply device,

wherein the predetermined information indicates whether or not the connection unit and an external device are connected to each other, a level of power received by the electronic device from the power supply device, and a level of power supplied to the electronic device by the external device, and

wherein the external device includes a device for supplying power to the electronic device via the connection unit.

18. A recording medium recording a program for causing a computer to execute a method for controlling a power supply device, the method comprising:

wirelessly supplying power;

communicating with an electronic device different from the power supply device; and

transmitting predetermined data to the electronic device based on whether or not the electronic device is in a state that enables the electronic device to receive power from an external device through a connection between the electronic device and the external device, the external device being different from the power supply device,

wherein the predetermined data includes one of first data and a second data, the first data is used for causing the electronic device to receive power from the external device, and the second data is used for causing the electronic device to receive power from the power supply device, and

wherein the external device includes a device for supplying power to the electronic device.

19. A recording medium recording a program for causing a computer to execute a method for controlling an electronic device, wherein the electronic device includes a connection unit that connects to an external device different from the electronic device, the method comprising:

wirelessly receiving power;

communicating with a power supply device different from the electronic device; and

transmitting predetermined information to the power supply device,

wherein the predetermined information indicates whether or not the connection unit and an external device are connected to each other, a level of power received by the electronic device from the power supply device, and a level of power supplied to the electronic device by the external device, and

wherein the external device includes a device for supplying power to the electronic device via the connection unit.