Feed system, feed unit, and electronic unit

• US 9,559,524 B2
• Filed: 08/07/2012
• Issued: 01/31/2017
• Est. Priority Date: 08/10/2011
• Status: Active Grant

• Current Assignee: Sony Group Corp.
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Uramoto, Yoichi
• Primary Examiner(s): Johnson, Ryan
• Application Number:
  US14/130,423
• Publication Number:
  US 20140142768A1
• Time in Patent Office: 1,638 Days
• US Class Current: 1/1
• 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 for communication with a second electronic unit; and

a feed unit configured to output a first wireless transmission of power of the second electronic unit based upon result information of a first authentication between the first electronic unit and the second electronic unit,

wherein the feed unit and the first electronic unit are configured to perform a second authentication between the feed unit and the second electronic unit during the first wireless transmission of the power, and

wherein the feed unit outputs a second wireless transmission of power to the second electronic unit based upon result information of the second authentication.

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

3. The feed system according to claim 1, wherein a detection section in the feed unit detects an object to be charged, such as the second electronic unit.

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

5. The feed system according to claim 1, wherein the feed unit and the first electronic unit are connected using USB.

6. 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.

7. 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.

8. 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.

9. 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.

10. The feed system according to claim 1, wherein the second electronic unit is configured to communicate with the first electronic unit by one of wireless communication and wired communication.

11. The feed system according to claim 10, wherein the wireless communication comprises a communication from the group consisting of Bluetooth, WiFi, ZigBee, and FeliCa.

12. The feed system according to claim 10, wherein the wired communication comprises a communication from the group consisting of USB and Ethernet.

13. 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.

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

15. A method of a charging operation in a feed system including a first electronic unit, a second electronic unit configured to communicate with the first electronic unit, and a feed unit configured to transmit power to the second electronic unit, comprising:

receiving, from the second electronic unit, a charging request to the first electronic unit in conjunction with the second electronic unit being in proximity to the feed unit;

carrying out a first authentication between the first electronic unit and the second electronic unit;

transmitting result information of the first authentication from the first electronic unit to the feed unit;

performing a first power transmission from the feed unit to the second electronic unit using the result information of the first authentication, the feed unit and the first electronic unit perform a second authentication on the second electronic unit during the first power transmission; and

performing a second power transmission from the feed unit to the second electronic unit using result information of the second authentication.

16. The method of the charging operation in the feed system according to claim 15, further comprising detecting, by a detection section in the feed unit, an object to be charged, such as the second electronic unit.