Communication device

• US 10,090,592 B2
• Filed: 10/29/2015
• Issued: 10/02/2018
• Est. Priority Date: 10/29/2015
• Status: Expired due to Fees

• Current Assignee: Sonitus Technologies, Inc. (Integrated Tactical Technologies, LLC), Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Sonitus Technologies, Inc. (Integrated Tactical Technologies, LLC), Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Yajima, Hiroshi, Satou, Hiroyuki, Ito, Shinichiro, Fowler, Bob, Pare, Michael, Pontiga, Chris
• Primary Examiner(s): Levi, Dameon E
• Assistant Examiner(s): Hu, Jennifer F
• Application Number:
  US14/926,452
• Publication Number:
  US 20170125904A1
• Time in Patent Office: 1,069 Days
• Field of Search: 343720
• CPC Class Codes: H01Q 7/06 with core of ferromagnetic material H01Q7/02 takes precedence
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/263 Multiple coils at either side
• CPC Class Codes: H04B 5/43 Antennas
• 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

A communication device includes: a board having a first surface, a second surface opposite to the first surface, and a third surface different from both the first surface and the second surface; a first magnetic sheet disposed on a side of the first surface; a first coil disposed on the first magnetic sheet; a second magnetic sheet disposed on a side of the second surface; a second coil disposed on the second magnetic sheet; and a third coil disposed on the third surface. A part of the first magnetic sheet overlaps at least a part of the third coil in plan view.

Claims

1. A communication device comprising:

a board having a first surface, a second surface opposite to the first surface, and a third surface different from both the first surface and the second surface;

a first magnetic sheet disposed on a side of the first surface;

a first coil disposed on the first magnetic sheet;

a second magnetic sheet disposed on a side of the second surface;

a second coil disposed on the second magnetic sheet; and

a third coil disposed on the third surface,

wherein a first part of the first magnetic sheet overlaps at least a part of the third coil in plan view.

2. The communication device according to claim 1, wherein

the first coil is a wireless charging coil,

the second coil is a near-field communication (NFC) coil, and

the third coil is a near-field magnetic induction (NFMI) coil.

3. The communication device according to claim 2, further comprising:

a battery, wherein

the board has a fourth surface opposite to the third surface,

the battery is disposed on the fourth surface, and

a second part of the first magnetic sheet overlaps at least a part of the battery in plan view.

4. The communication device according to claim 2, wherein

the third coil is disposed on a first notched part on the third surface.

5. The communication device according to claim 2, further comprising:

a battery, wherein

the board has a fourth surface, and the battery is disposed on a second notched part on the fourth surface.

6. The communication device according to claim 2, wherein

an area of the first coil is larger than an area of the second coil in plan view, and

a part of the first coil overlaps at least a part of the second coil in plan view.

7. The communication device according to claim 2, further comprising;

at least one electric component, wherein

the at least one electric component is disposed between the first surface and the first magnetic sheet or between the second surface and the second magnetic sheet, and

a part of the at least one electric component overlaps at least a part of the first coil in plan view.

8. The communication device according to claim 2, wherein

the first magnetic sheet and the second magnetic sheet include ferrite.

9. The communication device according to claim 2, wherein

the board is a printed circuit board.

10. The communication device according to claim 2, wherein

the first coil is disposed to face a charging unit of a charger for charging of the communication device.

11. The communication device according to claim 1, wherein

an axis of the first coil is substantially parallel to an axis of the second coil.

12. The communication device according to claim 11, wherein

each the axis of the first coil and the axis of the second coil intersects with an axis of the third coil.