Apparatus and method for using near field communication and wireless power transmission

• US 9,742,473 B2
• Filed: 05/11/2015
• Issued: 08/22/2017
• Est. Priority Date: 05/17/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Dong Zo, Kwon, Sang Wook, Kim, Ki Young, Kim, Nam Yun, Park, Yun Kwon, Park, Eun Seok, Ryu, Young Ho, Yoon, Chang Wook, Choi, Jin Sung, Hong, Young-tack
• Primary Examiner(s): Deberadinis, Robert
• Application Number:
  US14/708,844
• Publication Number:
  US 20150244427A1
• Time in Patent Office: 834 Days
• Field of Search: 307104
• CPC Class Codes: H04B 5/26 using coils
• 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

An apparatus and method of using near field communication (NFC) and wireless power transmission (WPT) are provided. A power receiving apparatus includes a resonator configured to receive a power and to output the power. The power receiving apparatus further includes a near field communication (NFC) receiver configured to perform wireless communication using the power output by the resonator. The power receiving apparatus further includes a wireless power transmission (WPT) receiver configured to supply a voltage using the power output by the resonator. The power receiving apparatus further includes a connecting unit configured to selectively connect the resonator to either the NFC receiver or the WPT receiver. The power receiving apparatus further includes a mode selector configured to control the connecting unit to selectively connect the resonator to either the NFC receiver or the WPT receiver based on the power output by the resonator.

Claims

1. An electronic device comprising:

a near field communication (NFC) coil configured to receive a signal;

an NFC receiver configured to perform wireless communication using the signal;

a wireless power transmission (WPT) coil configured to receive a power; and

an WPT receiver configured to supply a voltage using the power received by the WPT resonator,

wherein an operating frequency of the NFC coil is different from an operating frequency of the WPT coil, and

wherein an area of the WPT coil is larger than an area of the NFC coil.

2. The electronic device of claim 1, wherein the power receiving apparatus is configured to operate on the voltage.

3. The electronic device of claim 1, wherein the WPT coil is disposed to surround the NFC coil.

4. The electronic device of claim 1, wherein a Q-factor of the WPT coil is higher than a Q-factor of the NFC coil.

5. The electronic device of claim 1, wherein the operating frequency of the WPT coil is less than the operating frequency of the NFC coil.

6. The electronic device of claim 1, wherein an area occupied by the WPT coil is greater than an area occupied by the NFC coil.

7. The electronic device of claim 1, wherein the WPT coil and the NFC coil is disposed in the rear of the electronic device.

8. The electronic device of claim 7, wherein the WPT coil is disposed above the NFC coil within an interior space of the electronic device.

9. The electronic device of claim 1, the NFC coil performs wireless communication using the received first power and wherein the WPT coil supplies a voltage using the received second power.

10. The electronic device of claim 1, the NFC coil performs wireless communication using the received first power and wherein the WPT coil supplies a voltage using the received second power.

11. A method of operating an electronic device, comprising:

using a near field communication (NFC) receiver to perform wireless communication using a signal received by an NFC coil; and

using a wireless power transmission (WPT) receiver to supply a voltage using a power received by a WPT coil,

wherein an operating frequency of the NFC coil is different from an operating frequency of the WPT coil, and

wherein an area of the WPT coil is larger than an area of the NFC coil.

12. The electronic device of claim 11, wherein the WPT coil is disposed to surround the NFC coil.

13. The method of claim 11, wherein a Q-factor of the WPT coil is higher than a Q-factor of the NFC coil.

14. The method of claim 11, wherein the operating frequency of the WPT coil is less than the operating frequency of the NFC coil.

15. The method of claim 11, wherein an area occupied by the WPT coil is greater than an area occupied by the NFC coil.

16. The method of claim 11, wherein the WPT coil and the NFC coil is disposed in the rear of the electronic device.

17. The method of claim 16, wherein the WPT coil is disposed above the NFC coil within an interior space of the electronic device.