Method and apparatus for authentication in wireless power transmission system

• US 10,211,683 B2
• Filed: 07/22/2014
• Issued: 02/19/2019
• Est. Priority Date: 07/22/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: Kim, Nam Yun, Kwon, Sang Wook, Kim, Dong Zo, Kim, Bong Chul, Park, Yun Kwon, Ahn, Chi Hyung, Lee, Byoung Hee
• Primary Examiner(s): Cavallari, Daniel
• Application Number:
  US14/337,611
• Publication Number:
  US 20150022018A1
• Time in Patent Office: 1,673 Days
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• 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 7/00045 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

Abstract

An authentication of a power transmitting unit (PTU) includes determining whether an access right to an external device is present in a power receiving unit (PRU) based on identification information of the PRU, and network-connecting the PRU to the external device in response to a result of the determining being that the access right is present in the PRU.

Claims

1. An authentication method of a power transmitting unit (PTU), the authentication method comprising:

network-connecting to a power receiving unit (PRU);

determining whether an access right to an external device is present in the PRU based on identification information of the PRU; and

network-connecting the PRU and the external device in response to determining that the access right is present in the PRU,

wherein the network-connecting to the PRU comprises transmitting a beacon signal to the PRU, receiving an advertisement signal from the PRU, and transmitting a connection request to the PRU.

2. The authentication method of claim 1, further comprising granting the access right to the PRU.

3. The authentication method of claim 2, wherein the granting of the access right to the PRU comprises transmitting, to the PRU, a setting identifier to which the access right is granted.

4. The authentication method of claim 3, wherein the transmitting of the setting identifier to the PRU comprises:

obtaining a unique identifier of the PRU; and

generating the setting identifier based on the unique identifier.

5. The authentication method of claim 3, wherein the transmitting of the setting identifier comprises:

receiving a request for granting the access right from the PRU; and

transmitting the setting identifier to the PRU in response to the request for granting the access right.

6. The authentication method of claim 2, wherein the granting of the access right to the PRU comprises:

obtaining a unique identifier of the PRU; and

granting the access right to the unique identifier.

7. The authentication method of claim 2, wherein the granting of the access right to the PRU comprises:

receiving a setting identifier from the PRU; and

granting the access right to the setting identifier in response to the receiving of the setting identifier.

8. The authentication method of claim 2, wherein the granting of the access right to the PRU comprises:

receiving, from the external device, a request for granting the access right to the PRU; and

granting the access right to the PRU in response to the request for granting the access right.

9. The authentication method of claim 2, wherein the granting of the access right to the PRU comprises receiving, from the external device, a setting identifier to which the access right is granted.

10. The authentication method of claim 1, wherein the determining of whether the access right is present in the PRU comprises:

receiving the identification information from the PRU a number of times; and

blocking further reception of the identification information from the PRU in response to determining that the access right is not present in the PRU based on the identification information received the number of times.

11. The authentication method of claim 1, wherein the identification information comprises the access right granted by the external device.

12. The authentication method of claim 1, wherein the transmitting of the beacon signal to the PRU comprises transmitting a wake-up power to the PRU.

13. The authentication method of claim 1, wherein the determining of whether the access right is present in the PRU comprises:

receiving either one or both of a unique identifier and a setting identifier from the PRU; and

determining whether the access right is present in the either one or both of the unique identifier and the setting identifier.

14. The authentication method of claim 1, wherein the PRU is configured to communicate directly with the external device while the PRU is network-connected to the external device.

15. The authentication method of claim 1, further comprising feeding back, in a visual, audible, or tactile manner, information associated with either one or both of the identification information and the access right of the PRU.

16. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the authentication method of claim 1.

17. An authentication method of a power receiving unit (PRU), the authentication method comprising:

network-connecting to a power transmitting unit (PTU);

determining whether an access right to an external device is present in the PTU based on identification information of the PTU; and

network-connecting the PTU and the external device in response to determining that the access right is present in the PTU,

wherein the network-connecting to the PTU comprises receiving a beacon signal from the PTU, transmitting an advertisement signal to the PTU, and receiving a connection request from the PTU.