WIRELESS POWER TRANSMISSION APPARATUS AND METHOD FOR CONTROLLING SAME

• US 20170331329A1
• Filed: 01/20/2015
• Published: 11/16/2017
• Est. Priority Date: 11/24/2014
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KIM, Minwoo, CHANG, Seungyup, LEE, Changsuk
• Application Number:
  US15/529,459
• Publication Number:
  US 20170331329A1
• Time in Patent Office: Days
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• 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: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

The present disclosure relates to a wireless power transmission apparatus provided with a data backup function, and a method for controlling the wireless power transmission apparatus. A wireless power transmission apparatus which transceives wireless signals with a mobile terminal receiving wireless power according to the present invention comprises: a first wireless communication module sensing, via near-field communication, whether the mobile terminal is in a wireless recharging region of the wireless power transmission apparatus; utilizing the detection of the mobile terminal by the first wireless communication module, a second wireless communication module receiving data stored in the mobile terminal in order to carry out backup of the data; memory for storing the data, which is stored in the mobile terminal, received by means of the second wireless communication module; a power transmission unit for transmitting wireless power to the mobile terminal in the wireless recharging region; and a control unit for controlling any one from among the first wireless communication module, second wireless communication module, memory and power transmission unit, wherein the control unit carries out, via the first wireless communication module, an authentication process with the mobile terminal by means of authentication information, for backing up data, previously stored therein, and following the completion of the authentication process, the second wireless communication module is controlled to receive data stored in the mobile terminal.

Claims

1. A wireless power transmission apparatus comprising:

a first wireless communication module configured to detect a mobile terminal at a wireless charging area of the wireless power transmission apparatus;

a second wireless communication module;

a memory configured to store data;

a controller; and

a power transmission unit configured to wirelessly transmit power to the mobile terminal located at the wireless charging area,

wherein the controller is configured to;

execute, via the first wireless communication module, an authentication process with the mobile terminal using pre-stored authentication information for backing up data stored at the mobile terminal;

receive data stored at the mobile terminal via the second wireless communication module after the authentication process is executed; and

store the received data in the memory as backup data to the data stored at the mobile terminal.

2. The transmission apparatus of claim 1, wherein the controller is further configured to execute the authentication process, receive the data, and store the received data in the memory concurrently with the power transmission unit wirelessly transmitting power to the mobile terminal.

3. The transmission apparatus of claim 2, wherein the controller is further configured to control the power transmission unit to stop transmitting power to the mobile terminal when wireless charging of the mobile terminal is completed and continue receiving the data and storing the data in the memory after wireless charging of the mobile terminal is completed.

4. The transmission apparatus of claim 3, wherein:

the controller is further configured to cause a signal to be transmitted to the mobile terminal to display a message on a display of the mobile terminal when wireless charging of the mobile terminal is completed or storing of the backup data is completed; and

the displayed message comprises a selectable option to continue wireless charging if storing of the backup data is completed or a selectable option to continue storing of the backup data if wireless charging is completed.

5. The transmission apparatus of claim 1, wherein the controller is further configured to execute the authentication process with the mobile terminal only when a charge level of the mobile terminal exceeds a threshold level.

6. The transmission apparatus of claim 1, wherein the controller is further configured to store a log file in the memory when storing of the backup data is completed, wherein the log file indicates the backup data stored in the memory.

7. The transmission apparatus of claim 1, wherein the controller is further configured to only store backup data from the mobile terminal that is not already stored in the memory, according to an existing log file stored in the memory after a previous backup.

11. The transmission apparatus of claim 1, wherein:

the first communication module is a near field communication (NFC) communication module using a short-range communication protocol method; and

the second communication module is a Wi-Fi communication module configured to communicate with the mobile terminal via a short-range wireless communication network.

12. The transmission apparatus of claim 1, wherein

the first communication module is disposed proximate to the wireless charging area and the apparatus further comprises a magnet configured to magnetically guide positioning of the mobile terminal with respect to the wireless charging area.

13. The transmission apparatus of claim 1, wherein the controller is further configured to transmit at least Service Set Identifier (SSID) information, access security method information, or password information related to the second wireless communication module to the mobile terminal via the first wireless communication module when the mobile terminal is detected at the wireless charging area.

14. The transmission apparatus of claim 1, wherein the controller is further configured to cause a signal to be transmitted to the mobile terminal via the second wireless communication module when the mobile terminal is detected at the wireless charging area, the transmitted signal for displaying at the mobile terminal a selectable option for initiating backup of data stored at the mobile terminal.

15. The transmission apparatus of claim 1, wherein the controller is further configured to transmit the backup data stored in the memory to an external device or external server via the second wireless communication module.

21. The transmission apparatus of claim 6, wherein the log file comprises identifying information of the mobile terminal.

8. (canceled)

9. The transmission apparatus of claim 8, wherein the controller is further configured to:

determine whether there exists new data stored at the mobile terminal which has not yet been stored in the memory as backup data according to the existing log file; and

cause a signal to be transmitted to the mobile terminal for displaying a selectable option to initiate backup of the new data.

10. The transmission apparatus of claim 8, wherein the controller is further configured to update the existing log file and store the updated log file in the memory when storing the backup data is completed.

16. A method for controlling a wireless power transmission apparatus, the method comprising:

detecting a mobile terminal at a wireless charging area of the wireless power transmission apparatus;

wirelessly transmitting power to the mobile terminal located at the wireless charging area;

executing an authentication process with the mobile terminal using pre-stored authentication information for backing up data stored at the mobile terminal;

receiving data stored at the mobile terminal after the authentication process is executed; and

storing the received data in a memory of the wireless power transmission apparatus as backup data to the data stored at the mobile terminal.

17. The method of claim 16, wherein executing the authentication process, receiving the data, and storing the received data in the memory is performed concurrently with wirelessly transmitting power to the mobile terminal.

18. The method of claim 17, further comprising stopping transmitting power to the mobile terminal when wireless charging of the mobile terminal is completed and continuing receiving the data and storing the data in the memory after wireless charging of the mobile terminal is completed.

19. The method of claim 16, further comprising storing a log file in the memory when storing of the backup data is completed, wherein the log file indicates the backup data stored in the memory.

20. The method of claim 16, wherein only data from the mobile terminal that is not already stored in the memory is stored as backup data, according to an existing log file stored in the memory after a previous backup.