Feed system, feed unit, and electronic unit

• US 10,008,876 B2
• Filed: 12/16/2016
• Issued: 06/26/2018
• Est. Priority Date: 08/10/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Uramoto, Yoichi
• Primary Examiner(s): Johnson, Ryan
• Application Number:
  US15/381,792
• Publication Number:
  US 20170170679A1
• Time in Patent Office: 557 Days
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/60 responsive to the presence of foreign objects, e.g. detection of living beings
• 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 7/00036 Charger exchanging data with battery
• 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: Y02E 60/10 Energy storage using batteries

Abstract

A feed system has a first electronic unit, a second electronic unit, and a feed unit. The first electronic unit and the feed unit are separated. The feed unit transmits power to a power reception section of the second electronic unit based upon result information of a first authentication between the first electronic unit and the second electronic unit. The feed unit performs a second authentication on the second electronic unit in conjunction with power transmission.

Claims

1. A feed system comprising:

a first electronic unit configured to perform a first authentication between the first electronic unit and a second electronic unit, the first electronic unit is configured to perform a second authentication between the first electronic unit and the second electronic unit during a first wireless transmission of power to the second electronic unit; and

a feed unit configured to initiate the first wireless transmission after the first electronic unit has performed the first authentication, the feed unit is configured to initiate a second wireless transmission of the power to the second electronic unit after the first electronic unit has performed the second authentication.

2. The feed system according to claim 1, wherein the first electronic unit is configured to supply the power to the feed unit.

3. The feed system according to claim 1, wherein the second electronic unit is configured to communicate with the first electronic unit by either a wireless communication or a wired communication.

4. The feed system according to claim 1, wherein the first electronic unit is separate from the feed unit.

5. The feed system according to claim 1, wherein the feed unit includes a detection section.

6. The feed system according to claim 5, wherein the detection section is configured to detect a foreign metal on the feed unit.

7. The feed system according to claim 5, wherein the detection section is configured to detect a characteristic from the group consisting of a temperature around the feed unit and a pressure around the feed unit.

8. The feed system according to claim 1, wherein the feed unit includes an external power source input section configured to receive the power from a source external to the feed system.

9. The feed system according to claim 1, wherein the first electronic unit comprises a control section configured to manage a number of objects to be charged.

10. The feed system according to claim 1, wherein the first electronic unit comprises a control section configured to carry out a control function of charging.

11. The feed system according to claim 1, wherein the first electronic unit comprises a control section configured to carry out a proper power distribution function.

12. The feed system according to claim 1, wherein the first electronic unit comprises one of a television receiver, an image read/write apparatus, and a game machine.

13. The feed system according to claim 1, wherein the feed unit is configured to use of at least one of a magnetic field and an electric field coupling to transmit the power to the second electronic unit.

14. A method of performing a charging operation in a feed system, the method comprising:

performing, by a first electronic unit, a first authentication between the first electronic unit and a second electronic unit;

performing, by the first electronic unit, a second authentication between the first electronic unit and the second electronic unit during a first wireless transmission of power to the second electronic unit;

initiating, by a feed unit, the first wireless transmission after the first electronic unit has performed the first authentication; and

initiating, by the feed unit, a second wireless transmission of the power to the second electronic unit after the first electronic unit has performed the second authentication.

15. The method according to claim 14, further comprising:

supplying, by the first electronic unit, the power to the feed unit.

16. The method according to claim 14, further comprising:

communicating with the first electronic unit, by the second electronic unit, by either a wireless communication or a wired communication.

17. The method according to claim 14, further comprising:

detecting, by the feed unit, a foreign metal on the feed unit.

18. The method according to claim 14, further comprising:

detecting, by the feed unit, a characteristic from the group consisting of a temperature around the feed unit and a pressure around the feed unit.

19. The method according to claim 14, further comprising:

receiving, by the feed unit, the power from a source external to the feed system.

20. The method according to claim 14, further comprising:

managing, by the first electronic unit, a number of objects to be charged.

21. The method according to claim 14, further comprising:

carrying out, by the first electronic unit, a control function of charging.

22. The method according to claim 14, further comprising:

carrying out, by the first electronic unit, a proper power distribution function.

23. The method according to claim 14, further comprising:

transmitting, by the feed unit, the power to the second electronic unit using at least one of a magnetic field and an electric field coupling to transmit the power.