Wireless power transmitting devices, methods for signaling access information for a wireless communication network and method for authorizing a wireless power receiving device

• US 9,615,254 B2
• Filed: 03/21/2014
• Issued: 04/04/2017
• Est. Priority Date: 03/21/2014
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Lord, Christopher J., Yarvis, Mark D., Khoshnevis, Ahmad
• Primary Examiner(s): AJIBADE AKONAI, OLUMIDE
• Application Number:
  US14/221,331
• Publication Number:
  US 20150271673A1
• Time in Patent Office: 1,110 Days
• Field of Search: 307104, 320108, 320107, 320114, 340 101, 455 39, 455 411- 413, 455522, 455573, 455270, 455274
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• 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 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H04B 5/26 using coils
• 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 12/43 using shared identity modules, e.g. SIM sharing
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

A wireless power transmitting device is described comprising a power transmitter to wirelessly transmit power to a wireless power receiving device, a controller configured to control the wireless power transfer to the wireless power receiving device via a wireless power transfer control channel of a first wireless communication network between the wireless power transmitting device and the wireless power receiving device and a signaling circuit configured to signal access information for a second wireless communication network via the wireless power transfer control channel.

Claims

1. A wireless power transmitting device comprising:

a power transmitter to wirelessly transmit power to a wireless power receiving device;

a controller configured to control the wireless power transfer to the wireless power receiving device via a wireless power transfer control channel of a first wireless communication network between the wireless power transmitting device and the wireless power receiving device;

wherein the first wireless communication network comprises a short range radio access technology; and

a signaling circuit configured to signal access information for a second wireless communication network via the wireless power transfer control channel;

wherein the first wireless communication network is different from the second wireless communication network.

2. The wireless power transmitting device according to claim 1, wherein the first wireless communication network and the second wireless communication network use different radio access technologies.

3. The wireless power transmitting device according to claim 1, wherein the wireless power transmitting device comprises an authentication circuit configured to authenticate the wireless power receiving device and wherein the signaling circuit is configured to signal the access information based on whether the authentication circuit has authenticated the wireless power receiving device.

4. The wireless power transmitting device according to claim 1, wherein the wireless power transmitting device comprises an authentication circuit configured to authenticate the wireless power receiving device and wherein the power transmitter is configured to wirelessly transmit power to the wireless power receiving device based on whether the authentication circuit has authenticated the wireless power receiving device.

5. The wireless power transmitting device according to claim 4, wherein the authentication circuit is configured to authenticate the wireless power receiving device by verifying that the wireless power receiving device to which the power transmitter transmits power is the same as the wireless power receiving device connected to the wireless power transmitting device by the wireless power transfer control channel.

6. The wireless power transmitting device according to claim 1, wherein the power transmitter is configured to wirelessly transmit power to the wireless power receiving device using a power signal and the wireless power transfer control channel is a channel based on a modulation of the power signal.

7. A wireless power transmitting device comprising:

a power transmitter configured to wirelessly transmit power to a wireless power receiving device;

a controller configured to instruct the wireless power receiving device to adapt a parameter of the power reception from the power transmitter via a communication channel between the wireless power transmitting device and the wireless power receiving device;

a detector configured to detect whether the wireless power receiving device adapts the parameter of the power reception;

an authentication circuit configured to verify that the wireless power receiving device to which the power transmitter transmits power is the same as the wireless power receiving device connected to the wireless power transmitting device by the communication channel based on whether the wireless power receiving device adapts the parameter of the power reception.

8. The wireless power transmitting device according to claim 7, wherein the controller is configured to instruct the wireless power receiving device to interrupt the power reception from the power transmitter.

9. The wireless power transmitting device according to claim 7, wherein the controller is configured to instruct the wireless power receiving device to adapt the parameter of the power reception for a predetermined time wherein the authentication circuit is configured to verify that the wireless power receiving device to which the power transmitter transmits power is the same as the wireless power receiving device connected to the wireless power transmitting device by the communication channel based on whether the wireless power receiving device adapts the parameter of the power reception for the predetermined time.

10. The wireless power transmitting device according to claim 9, wherein the controller is configured to randomly determine the predetermined time.

11. The wireless power transmitting device according to claim 7, further comprising a signaling circuit configured to signal access information for a wireless communication network to the wireless power receiving device based on whether the wireless power receiving device to which the power transmitter transmits power is the same as the wireless power receiving device connected to the wireless power transmitting device by the communication channel.

12. The wireless power transmitting device according to claim 11, wherein the wireless communication network is a wireless local area network or a cellular mobile telephone communication network.

13. The wireless power transmitting device according to claim 11, wherein the access information includes credentials for the wireless communication network.

14. A wireless power transmitting device comprising:

a power transmitter configured to wirelessly transmit power to a wireless power receiving device;

a controller configured to

request the wireless power receiving device to provide an electronic token indicating that the wireless power receiving device has the right to receive power from the power transmitter;

verify, based on the reception of a valid token from the wireless power receiving device, whether the wireless power receiving device has the right to receive power from the power transmitter; and

control the power transmitter to transmit power to the wireless power receiving device based on whether the wireless power receiving device has the right to receive power from the power transmitter.

15. The wireless power transmitting device according to claim 14, wherein the controller is configured to determine whether a token received from the wireless power receiving device is valid.

16. The wireless power transmitting device according to claim 15, wherein the controller is configured to determine whether a token received from the wireless power receiving device is valid based on a signature of the electronic token.

17. The wireless power transmitting device according to claim 15, wherein the controller is configured to request the wireless power receiving device to provide an electronic token indicating that the wireless power receiving device has the right to be fully charged by the power transmitter, to verify, based on the reception of a valid token from the wireless power receiving device, whether the wireless power receiving device has the right to be fully charged by the power transmitter and to control the power transmitter to fully charge the wireless power receiving device based on whether the wireless power receiving device has the right to be fully charged by the power transmitter.

18. The wireless power transmitting device according to claim 15, wherein the controller is configured to request the wireless power receiving device to provide the electronic token by transmitting a request message to the wireless power receiving device indicating that the wireless power receiving device is to provide the electronic token.

19. The wireless power transmitting device according to claim 18, wherein the message includes at least one of the address of a communication device providing the electronic token, a serial number of the wireless power transmitting device, a URI of a web service providing the electronic token and a nonce.