Power supply apparatus, power receiving apparatus, and control method thereof

• US 10,116,355 B2
• Filed: 02/15/2017
• Issued: 10/30/2018
• Est. Priority Date: 02/26/2016
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Okamoto, Yoshihiko
• Primary Examiner(s): Urban, Edward
• Assistant Examiner(s): Mathew, Max
• Application Number:
  US15/433,602
• Publication Number:
  US 20170250735A1
• Time in Patent Office: 622 Days
• Field of Search: 455 412
• CPC Class Codes: H04B 5/266 One coil at each side, e.g. with primary and secondary coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

A power supply apparatus comprises a power supply unit which outputs power to a power receiving apparatus in a non-contact manner, a first communication unit which communicates with the power receiving apparatus through a first communication scheme, a second communication unit which communicates with the power receiving apparatus through a second communication scheme, and a control unit which carries out control such that first power is output from the power supply unit, and in the case where first device information and second device information obtained from the power receiving apparatus meet a predetermined condition, a state of connection with the power receiving apparatus is continued by the second communication unit.

Claims

1. A power supply apparatus which can supply power to a power receiving apparatus in a non-contact manner, the power supply apparatus comprising:

a power supply unit configured to output power to the power receiving apparatus in a non-contact manner;

a first communication unit configured to communicate with the power receiving apparatus through a first communication scheme;

a second communication unit configured to communicate with the power receiving apparatus through a second communication scheme, wherein a range in which the second communication unit can communicate is broader than a range in which the first communication unit can communicate; and

a control unit configured to transmit a request signal requesting first device information to the power receiving apparatus using the first communication unit, and output first power from the power supply unit after a response signal responding to the request signal is received from the power receiving apparatus;

wherein the control unit receives second device information from the, power receiving apparatus using the second communication unit and compares the second device information and the first device information,

wherein, in a case where both of the second device information and the first device information indicate the same power receiving apparatus, the control unit controls the power supply unit to output second power and continue communication with the power receiving apparatus via the second communication unit,

wherein, in a case where both of the second device information and the first device information do not indicate the same power receiving apparatus, the control unit controls the power supply unit to stop communication with the power receiving apparatus via the second communication unit.

2. The apparatus according to claim 1, wherein the second power is higher than the first power.

3. The apparatus according to claim 1, wherein the first communication scheme is short-range wireless communication.

4. The apparatus according to claim 1, wherein

the control unit

receives authentication information from the power receiving apparatus using the second communication unit;

and

compares the second device information and the first device information included in the authentication information.

5. The apparatus according to claim 1, wherein the control unit outputs the first power or third power using the power supply unit after the request signal has been transmitted to the power receiving apparatus using the first communication unit.

6. The apparatus according to claim 5, wherein

the control unit outputs the first power using the power supply unit in the case where, after the request signal has been transmitted to the power receiving apparatus by the first communication unit, the response signal is received from the power receiving apparatus before a predetermined time elapses;

and

outputs the third power using the power supply unit in the case where the response signal has not been received from the power receiving apparatus before the predetermined time elapses.

8. The apparatus according to claim 5, wherein the second power is higher than the first power, and the first power is higher than the third power.

9. The apparatus according to claim 1, wherein

the first communication scheme is a communication scheme corresponding to an NFC standard;

and

the second communication scheme is a communication scheme corresponding to a Bluetooth standard.

7. The apparatus according to clan 5, herein time interval in which the request signal is transmitted by the first communication unit is shorter than a time interval in which the power supply unit outputs the third power.

10. A control method of a power supply apparatus which has a power supply unit that outputs power to a power receiving apparatus in a non-contact manner, a first communication unit that communicates with the power receiving apparatus through a first communication scheme, and a second communication unit that communicates with the power receiving apparatus through a second communication scheme, the method comprising:

transmitting a request signal requesting first device information to the power receiving apparatus using the first communication unit;

outputting first power from the power supply unit after a response signal responding to the request signal is received from the power receiving apparatus;

receiving second device information from the power receiving apparatus using the second communication unit; and

comparing the second device information and the first device information;

in a case where both of the second device information and the first device information indicate the same power receiving apparatus, controlling the power supply unit to output second power and continue communication with the power receiving apparatus via the second communication unit,

in a case where both of the second device information and the first device information do not indicate the same power receiving apparatus, stopping communication with the power receiving apparatus via the second communication unit.

11. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method of a power supply apparatus which has a power supply unit that outputs power to a power receiving apparatus in a non-contact manner, a first communication unit that communicates with the power receiving apparatus through a first communication scheme, and a second communication unit that communicates with the power receiving apparatus through second communication scheme, the method comprising:

transmitting a request signal requesting first device information to the power receiving apparatus using the first communication unit;

outputting first power from the power supply unit after a response signal responding to the request signal is received from the power receiving apparatus;

receiving second device information from the power receiving apparatus using the second communication unit; and

comparing the second device information and the first device information;

in a case where both of the second device information and the first device information indicate the same power receiving apparatus, controlling the power supply unit to output second power and continue communication with the power receiving apparatus via the second communication unit,

in a case where both of the second device information and the first device information do, not indicate the same power receiving apparatus stopping communication with the power receiving apparatus via the second communication unit.