Communication apparatus, control method, and storage medium

• US 10,389,185 B2
• Filed: 02/13/2017
• Issued: 08/20/2019
• Est. Priority Date: 04/17/2013
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Nago, Hidetada
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Yeshaw, Esayas G
• Application Number:
  US15/431,315
• Publication Number:
  US 20170163102A1
• Time in Patent Office: 918 Days
• 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: H04B 5/72 for local intradevice communication
• 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 12/08 Access security
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

A communication apparatus includes first communication means having a first communication function for wirelessly communicating with a partner apparatus, and second communication means having an electric power supply function for wirelessly supplying electric power to the partner apparatus and a second communication function for wirelessly communicating with the partner apparatus. The second communication function is for transmitting specific data sequence to the partner apparatus in response to reception of specific data from the partner apparatus, and the electric power supply function is for supplying electric power to the partner apparatus in a case of receiving from the partner apparatus, with the first communication means, a signal indicating that the partner apparatus has received the data sequence.

Claims

1. A communication apparatus comprising:

a power transmission unit configured to wirelessly transmit power to another communication apparatus;

a communication unit configured to communicate with said another communication apparatus to perform authentication for wireless power transfer; and

a control unit configured to control the power transmission unit,

wherein, in a case where the authentication via the communication unit succeeds, the control unit controls the power transmission unit so that the power transmission unit wirelessly transmits power based on power requested by said another communication apparatus, and in a case where the authentication via the communication unit does not succeed, the control unit controls the power transmission unit so that the power transmission unit limits the wireless power transfer.

2. The communication apparatus according to claim 1, wherein the communication apparatus receives, from said another communication apparatus, information related to power requested by said another communication apparatus.

3. The communication apparatus according to claim 1, wherein the communication unit receives, from said another communication apparatus, information related to power requested by said another communication apparatus.

4. The communication apparatus according to claim 1, wherein the power transmission unit wirelessly transmits power to said another communication apparatus using a first antenna, and

the communication unit communicates with said another communication apparatus to perform authentication for wireless power transfer using a second antenna that is different from the first antenna.

5. The communication apparatus according to claim 4, further comprising another communication unit configured to communicate with said another communication apparatus using the first antenna.

6. The communication apparatus according to claim 5, wherein the control unit determines whether or not another communication apparatus that has been authenticated via the communication unit is identical to another communication apparatus with which communication has been performed by said another communication unit.

7. The communication apparatus according to claim 1, wherein in a case where the authentication via the communication unit does not success, the power transmission unit does not perform wireless power transfer.

8. A communication apparatus comprising:

a power reception unit configured to wirelessly receive power from another communication apparatus;

a communication unit configured to communicate with said another communication apparatus to perform authentication for wireless power transfer; and

a control unit configured to control the power reception unit,

wherein, in a case where the authentication for wireless power transfer via the communication unit succeeds, the control unit controls the power reception unit so that the power reception unit wirelessly receives power based on power requested by the communication apparatus, from said another communication apparatus, and in a case where the authentication via the communication unit does not succeed, the control unit controls the power reception unit so that the power reception unit limits the wireless power reception.

9. The communication apparatus according to claim 8, wherein the communication apparatus transmits, to said another communication apparatus, information related to power that the communication apparatus requests.

10. The communication apparatus according to claim 8, wherein the communication unit transmits, to said another communication apparatus, information related to power that the communication apparatus requests.

11. The communication apparatus according to claim 8, wherein the communication apparatus receives, from said another communication apparatus, a signal indicating that the authentication has succeeded.

12. The communication apparatus according to claim 8, wherein the power reception unit wirelessly receives power from said another communication apparatus using a first antenna, and

the communication unit communicates with said another communication apparatus to perform authentication for wireless power transfer using a second antenna that is different from the first antenna.

13. The communication apparatus according to claim 12, further comprising another communication unit configured to communicate with said another communication apparatus using the first antenna.

14. A power transmission method of a communication apparatus that wirelessly transmits power to another communication apparatus, the method comprising:

performing communication with said another communication apparatus to perform authentication for wireless power transfer;

in a case where the authentication via the communication succeeds, controlling the communication apparatus so that the communication apparatus wirelessly transmits power based on power requested by said another communication apparatus, and

in a case where the authentication via the communication does not succeed, controlling the communication apparatus so that the communication apparatus limits the wireless power transfer.

15. The power transmission method according to claim 14, further comprising receiving, from said another communication apparatus, information related to power requested by said another communication apparatus.

16. The power transmission method according to claim 14, wherein, in the controlling, the communication apparatus wirelessly transmits power to said another communication apparatus using a first antenna, and

in performing communication, the communication apparatus communicates with said another communication apparatus to perform authentication for wireless power transfer using a second antenna that is different from the first antenna.

17. A power reception method of a communication apparatus that wirelessly receives power from another communication apparatus, the method comprising:

performing communication with said another communication apparatus to perform authentication for wireless power transfer; and

in a case where the authentication for wireless power transfer via the communication succeeds, controlling the communication apparatus so that the communication apparatus wirelessly receives power based on power requested by the communication apparatus, from said another communication apparatus, and

in a case where the authentication via the communication does not succeed, controlling the communication apparatus so that the communication apparatus limits the wireless power reception.

18. A non-transitory computer-readable storage medium that stores a computer program for causing a computer included in a communication apparatus, which wirelessly transmits power to another communication apparatus, to:

perform communication with said another communication apparatus to perform authentication for wireless power transfer;

in a case where the authentication via the communication succeeds, control the communication apparatus so that the communication apparatus wirelessly transmits power based on power requested by said another communication apparatus, and

in a case where the authentication via the communication does not succeed, control the communication apparatus so that the communication apparatus limits the wireless power transfer.

19. A non-transitory computer-readable storage medium that stores a computer program for causing a computer included in a communication apparatus, which wirelessly receives power from another communication apparatus, to:

perform communication with said another communication apparatus to perform authentication for wireless power transfer; and

in a case where the authentication for wireless power transfer via the communication succeeds, control the communication apparatus so that the communication apparatus wirelessly receives power based on power requested by the communication apparatus, from said another communication apparatus, and

in a case where the authentication via the communication does not succeed, control the communication apparatus so that the communication apparatus limits the wireless power reception.