Transmission interface device and system thereof

• US 9,831,919 B2
• Filed: 04/03/2014
• Issued: 11/28/2017
• Est. Priority Date: 04/03/2013
• Status: Active Grant

• Current Assignee: National Taiwan University (Government of The Republic of China)
• Original Assignee: National Taiwan University (Government of The Republic of China)
• Inventors: Mao, Shau-Gang
• Primary Examiner(s): Gonzales, April G
• Application Number:
  US14/244,003
• Publication Number:
  US 20140302780A1
• Time in Patent Office: 1,335 Days
• Field of Search: 455 411
• CPC Class Codes: H04B 5/24 Inductive coupling
• 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 exemplary embodiment of the present disclosure illustrates a transmission interface device, and the transmission interface device comprises an antenna body. The antenna body comprises at least one electric coupling body and at least one magnetic coupling body at least covering or surrounding portion of the electric coupling body. When the antenna of the electronic device is close to the antenna body, the antenna body and the antenna of the electronic device selectively generate an electric coupling effect, a magnetic coupling effect, or a strong electromagnetic coupling effect, such that the transmission interface device can wirelessly charge the electronic device, or alternatively the transmission interface device and the electronic device can perform a power or data transmission.

Claims

1. A transmission interface device, applied for wirelessly charging or performing a near-field communication with an electronic device, comprising:

an antenna body, comprising;

at least one electric coupling body, generating an electric coupling effect with the electronic device;

at least one magnetic coupling body independent to the electric coupling body, covering or surrounding at least a portion of the electric coupling body, and generating a magnetic coupling effect with the electronic device;

wherein when an antenna of the electronic device is close to the antenna body, the antenna body and the antenna of the electronic device selectively generate the electric coupling effect, the magnetic coupling effect, or a strong electromagnetic coupling effect, so as to change at least one matching condition for the antenna body and the antenna of the electronic device, such that the transmission interface device wirelessly charges the electronic device, or alternatively the transmission interface and the electronic device perform a power or data transmission of the near-field communication.

2. The transmission interface device according to claim 1, further comprising:

a grounding unit, electrically connected to the antenna body.

3. The transmission interface device according to claim 1, further comprising:

a chip, electrically connected to the antenna body, wirelessly charging the electronic device, or alternatively performing the power or data transmission with the electronic device through the electric coupling effect, the magnetic coupling effect, or strong electromagnetic coupling effect.

4. The transmission interface device according to claim 2, wherein the grounding unit is an independent metal grounding plane or a grounding plane of a print circuit board.

5. The transmission interface device according to claim 1, wherein the magnetic coupling body is a loop or U-shaped magnetic coupling body, therefore at least covering or surrounding the portion of the electric coupling body.

6. The transmission interface device according to claim 1, wherein the electric coupling body is plate dipole antenna or a planar inverted-F antenna.

7. The transmission interface device according to claim 1, wherein the antenna body and the antenna of the electronic device selectively generate the electric coupling effect, the magnetic coupling effect, or the strong electromagnetic coupling effect according to characteristics of the antenna of the electronic device.

19. The transmission interface device according to claim 1, when the antenna of the electronic device is close to the antenna body, the operating frequency of the antenna of the electronic device is changed from a first band to a second band, wherein the first band is not equal to the second band, wherein the first band is the band for the far-field communication and the transmission interface device uses the second band to wirelessly charge the electronic device or perform the near-field communication with the electronic device.

20. The transmission interface device according to claim 19, when the antenna of the electronic device is close to the antenna body, the far-field communication function of the electronic device will be disabled.

21. The transmission interface device according to claim 1, wherein the electric coupling body is located between an inner side of the magnetic coupling body and an outer side of the antenna of the electric device, so that a distance between the magnetic coupling body and the electric device is larger than that between the magnetic coupling body and the electric coupling body.

22. The transmission interface device according to claim 1, wherein when the antenna of the electronic device is close to the antenna body, the operating frequency of the antenna of the electronic device is changed from a first band to a second band, wherein the second band is within the first band, wherein the first band is the band for the far-field communication and the transmission interface device uses the second band to wirelessly charge the electronic device or perform the near-field communication with the electronic device.

8. A transmission interface system, comprising:

an electronic device; and

a transmission interface device, applied for wirelessly charging or performing a near-field communication with the electronic device, comprising;

an antenna body, comprising;

at least one electric coupling body, generating an electric coupling effect with the electronic device; and

at least one magnetic coupling body independent to the electric coupling body, covering or surrounding at least a portion of the electric coupling body, and generating a magnetic coupling effect with the electronic device;

wherein when an antenna of the electronic device is close to the antenna body, the antenna body and the antenna of the electronic device selectively generate the electric coupling effect, the magnetic coupling effect, or a strong electromagnetic coupling effect, so as to change at least one matching condition for the antenna body and the antenna of the electronic device, such that the transmission interface device wirelessly charges the electronic device, or alternatively the transmission interface and the electronic device perform a power or data transmission of the near-field communication.

9. The transmission interface system according to claim 8, wherein the transmission interface device further comprises:

a grounding unit, electrically connected to the antenna body.

10. The transmission interface system according to claim 8, wherein the transmission interface device further comprises:

a chip, electrically connected to the antenna body, wirelessly charging the electronic device, or alternatively performing the power or data transmission with the electronic device through the electric coupling effect, the magnetic coupling effect, or strong electromagnetic coupling effect.

11. The transmission interface system according to claim 9, wherein the grounding unit is an independent metal grounding plane or a grounding plane of a print circuit board.

12. The transmission interface system according to claim 8, wherein the magnetic coupling body is a loop or U-shaped magnetic coupling body, therefore at least covering or surrounding the portion of the electric coupling body.

13. The transmission interface system according to claim 8, wherein the electric coupling body is plate dipole antenna or a planar inverted-F antenna.

14. The transmission interface system according to claim 8, wherein the antenna body and the antenna of the electronic device selectively generate the electric coupling effect, the magnetic coupling effect, or the strong electromagnetic coupling effect according to characteristics of the antenna of the electronic device.

15. The transmission interface system according to claim 8, further comprising:

an equipment, connected to the transmission interface device.

16. The transmission interface system according to claim 8, wherein the equipment is an automobile communication interface, a desk, a portable power supply, an appliance, or a computing device, and the transmission interface device is integrated into the equipment.

17. The transmission interface system according to claim 8, wherein the electronic device is a pad, an automobile electronic device, a portable storage device, or a cell phone.

18. The transmission interface system according to claim 8, wherein the electronic device is integrated into a vehicle or an appliance.

23. The transmission interface device according to claim 8, when the antenna of the electronic device is close to the antenna body, the operating frequency of the antenna of the electronic device is changed from a first band to a second band, wherein the first band is not equal to the second band, wherein the first band is the band for the far-field communication and the transmission interface device uses the second band to wirelessly charge the electronic device or perform the near-field communication with the electronic device.

24. The transmission interface device according to claim 23, when the antenna of the electronic device is close to the antenna body, the far-field communication function of the electronic device will be disabled.

25. The transmission interface device according to claim 8, wherein the electric coupling body is located between an inner side of the magnetic coupling body and an outer side of the antenna of the electric device, so that a distance between the magnetic coupling body and the electric device is larger than that between the magnetic coupling body and the electric coupling body.

26. The transmission interface device according to claim 8, wherein when the antenna of the electronic device is close to the antenna body, the operating frequency of the antenna of the electronic device is changed from a first band to a second band, wherein the second band is within the first band, wherein the first band is the band for the far-field communication and the transmission interface device uses the second band to wirelessly charge the electronic device or perform the near-field communication with the electronic device.