Wireless power transfer system, control method of wireless power transfer system, wireless power transmitting apparatus, control method of wireless power transmitting apparatus, and storage medium

• US 10,158,260 B2
• Filed: 06/27/2017
• Issued: 12/18/2018
• Est. Priority Date: 11/04/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Yamamoto, Tetsuya
• Primary Examiner(s): DEBERADINIS, ROBERT L
• Application Number:
  US15/634,966
• Publication Number:
  US 20170294800A1
• Time in Patent Office: 539 Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/0049 Detection of fully charged condition
• CPC Class Codes: H02J 7/0071 with a programmable schedule
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A wireless power transfer system comprising a wireless power transmitting apparatus and a plurality of wireless power receiving apparatuses, the wireless power transmitting apparatus comprising: a power transmitting unit adapted to transmit power to the wireless power receiving apparatus; a recognition unit adapted to recognize the wireless power receiving apparatus; and a transmitting unit adapted to transmit predetermined charging delay information according to a recognition result of the recognition unit to the wireless power receiving apparatus recognized by the recognition unit, and the wireless power receiving apparatus comprising: a power receiving unit adapted to receive power transmitted from the power transmitting unit; a receiving unit adapted to receive the predetermined charging delay information transmitted from the transmitting unit; and a display unit adapted to make a display based on the predetermined charging delay information received by the receiving unit.

Claims

1. A power receiving apparatus comprising:

a power receiving unit configured to receive power wirelessly supplied by a power transmitting apparatus;

a charging unit configured to charge a rechargeable battery using the power received by the power receiving unit;

a receiving unit configured to receive information from the power transmitting apparatus;

a display control unit configured to cause a display unit to display, based on the information received by the receiving unit, charging information selected among a plurality of pieces of charging information representing a charging speed, that include first charging information representing a charging speed and second charging information representing a charging speed lower than the charging speed represented by the first charging information.

2. The apparatus according to claim 1, wherein the display control unit selects the first charging information and causes the display unit to display the first charging information, in a case where the receiving unit receives information that is to be transmitted from the power transmitting apparatus when the power transmitting apparatus is not transmitting power to another power receiving apparatus different from the power receiving apparatus.

3. The apparatus according to claim 1, wherein the display control unit selects the second charging information and causes the display unit to display the second charging information, in a case where the receiving unit receives information that is to be transmitted from the power transmitting apparatus when the power transmitting apparatus is transmitting power to another power receiving apparatus different from the power receiving apparatus.

4. The apparatus according to claim 1, wherein the first charging information comprises information representing that a normal charging is being performed.

5. The apparatus according to claim 1, wherein the second charging information comprises information representing that a charging time is to be longer than a normal charging.

6. The apparatus according to claim 1, wherein the second charging information comprises information representing that a charging time is to be prolonged because a plurality of apparatuses are performing charging.

7. The apparatus according to claim 1, wherein the receiving unit wirelessly and directly receives information from the power transmitting apparatus.

8. The apparatus according to claim 1, wherein the display control unit causes the display unit to display an estimated time required until completion of charging.

9. The apparatus according to claim 1, wherein the receiving unit receives information via an antenna used to receive power by the power receiving unit.

10. A method for controlling a power receiving apparatus comprising a charging unit configured to charge a rechargeable battery using power wirelessly supplied from a power transmitting apparatus, the method comprising:

receiving information from the power transmitting apparatus; and

causing a display unit to display, based on the received information, charging information selected among a plurality of pieces of charging information, representing a charging speed, that includes first charging information representing a charging speed and second charging information representing a charging speed lower than the charging speed represented by the first charging information.

11. A computer-readable non-transitory storage medium storing a computer program for causing a computer to execute a method for controlling a power receiving apparatus comprising a charging unit configured to charge a rechargeable battery using power wirelessly supplied from a power transmitting apparatus, the method comprising:

receiving information from the power transmitting apparatus; and

causing a display unit to display, based on the received information, charging information selected among a plurality of pieces of charging information representing a charging speed, that includes first charging information representing a charging speed and second charging information representing a charging speed lower than the charging speed represented by the first charging information.