Power supply apparatus, control method, and recording medium

• US 9,819,398 B2
• Filed: 10/08/2014
• Issued: 11/14/2017
• Est. Priority Date: 10/09/2013
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tsukamoto, Nobuyuki, Tateno, Marie
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Htun, Win
• Application Number:
  US14/509,524
• Publication Number:
  US 20150097445A1
• Time in Patent Office: 1,133 Days
• Field of Search: 307104, 455 901
• CPC Class Codes: H02J 50/12 of the resonant type
• 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 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A power supply apparatus includes a power supply unit that wirelessly supplies power to an electronic apparatus, a communication unit that performs wireless communication for acquiring status information from the electronic apparatus, a detection unit that detects an external apparatus different from the electronic apparatus, and a control unit that causes the communication unit to disconnect wireless communication with the electronic apparatus in response to a detection of the external apparatus by the detection unit if the power supply unit is wirelessly supplying power to the electronic apparatus based on the status information acquired from the electronic apparatus, and causes the communication unit to perform wireless communication with the external apparatus to determine whether the external apparatus is able to wirelessly receive power.

Claims

1. A power supply apparatus comprising:

a power supply unit that wirelessly supplies power to an electronic apparatus;

a communication unit that performs wireless communication for acquiring status information from the electronic apparatus;

a detection unit that detects an external apparatus different from the electronic apparatus; and

a control unit that, in a case where the power supply unit is wirelessly supplying power to the electronic apparatus based on the status information acquired from the electronic apparatus, causes (1) the communication unit to disconnect wireless communication with the electronic apparatus in response to a detection of the external apparatus by the detection unit, and after (1), causes (2) the communication unit to perform wireless communication with the external apparatus to determine whether the external apparatus is able to wirelessly receive power.

2. The power supply apparatus according to claim 1, wherein the control unit controls the communication unit to continue a communication with the electronic apparatus in a case where the external apparatus is not detected by the detection unit while the power supply unit is wirelessly supplying power to the electronic apparatus based on the status information acquired from the electronic apparatus.

3. The power supply apparatus according to claim 1, wherein the control unit controls the communication unit to disconnect a wireless communication with the electronic apparatus in a case where a wireless power supply to the electronic apparatus is ended.

4. The power supply apparatus according to claim 1, wherein the control unit controls a wireless power supply to the electronic apparatus based on whether the external apparatus is able to wirelessly receive power.

5. The power supply apparatus according to claim 1, wherein the control unit controls the power supply unit to wirelessly supply power to the electronic apparatus and the external apparatus in a case where the external apparatus is able to wirelessly receive power.

6. The power supply apparatus according to claim 1, wherein the control unit restricts wireless power supply to the electronic apparatus in a case where the external apparatus is not able to wirelessly receive power.

7. The power supply apparatus according to claim 1, wherein a wireless power supply by the power supply unit and a wireless communication by the communication unit are performed in a time-sharing manner.

8. The power supply apparatus according to claim 1, wherein the communication unit performs the wireless communication based on Near Field Communication (NFC).

9. The power supply apparatus according to claim 1, wherein the control unit controls the communication unit to disconnect a wireless communication with the electronic apparatus in a case where power output from the power supply unit is less than or equal to a predetermined value, and controls the communication unit to restart the wireless communication with the electronic apparatus.

10. A control method comprising:

supplying power to an electronic apparatus wirelessly;

performing wireless communication for acquiring status information from the electronic apparatus;

disconnecting wireless communication with the electronic apparatus in response to a detection of an external apparatus in a case where a wireless power supply is performed based on the status information acquired from the electronic apparatus, wherein the external apparatus is different from the electronic apparatus; and

performing, after disconnecting, wireless communication with the external apparatus to determine whether the external apparatus is able to wirelessly receive power.

11. The control method according to claim 10, further comprising continuing a communication with the electronic apparatus in a case where the external apparatus is not detected while a wireless power supply is performed based on the status information acquired from the electronic apparatus.

12. The control method according to claim 10, further comprising disconnecting a wireless communication with the electronic apparatus in a case where a wireless power supply to the electronic apparatus is ended.

13. The control method according to claim 10, further comprising controlling a wireless power supply to the electronic apparatus based on whether the external apparatus is able to wirelessly receive power.

14. The control method according to claim 10, further comprising supplying power wirelessly to the electronic apparatus in a case where the external apparatus is able to wirelessly receive power.

15. The control method according to claim 10, further comprising restricting a wireless power supply to the electronic apparatus in a case where the external apparatus is not able to wirelessly receive power.

16. The control method according to claim 10, wherein a wireless power supply and a wireless communication are performed in a time-sharing manner.

17. The control method according to claim 10, further comprising

disconnecting a wireless communication with the electronic apparatus in a case where an output of power is less than or equal to a predetermined value, and

restarting the wireless communication with the electronic apparatus.

18. A non-transitory-recording medium storing a program for causing a computer to perform a control method, the control method comprising:

supplying power to an electronic apparatus wirelessly;

performing wireless communication for acquiring status information from the electronic apparatus;

disconnecting wireless communication with the electronic apparatus in response to a detection of an external apparatus in a case where a wireless power supply is performed based on the status information acquired from the electronic apparatus, wherein the external apparatus is different from the electronic apparatus; and

performing, after disconnecting, wireless communication with the external apparatus to determine whether the external apparatus is able to wirelessly receive power.