Dynamic magnetic stripe communications device with stepped magnetic material for magnetic cards and devices

• US 10,311,349 B1
• Filed: 05/09/2017
• Issued: 06/04/2019
• Est. Priority Date: 11/30/2012
• Status: Active Grant

• Current Assignee: Dynamics Inc.
• Original Assignee: Dynamics Inc.
• Inventors: Workley, James H.
• Primary Examiner(s): Labaze, Edwyn
• Application Number:
  US15/591,027
• Time in Patent Office: 756 Days
• Field of Search: 235488, 235380, 235492, 235451, 235487, 235493, 235449, 235408
• CPC Class Codes: G06K 19/06196 Constructional details
• CPC Class Codes: G06K 19/06206 the magnetic marking being emulated
• CPC Class Codes: G06K 19/0702 the arrangement including a battery
• CPC Class Codes: G06K 19/07707 the visual interface being a display, e.g. LCD or electronic ink
• CPC Class Codes: H01F 5/003 Printed circuit coils

Abstract

A flexible card may include a dynamic magnetic stripe communications device having multiple layers, such as an electromagnetic generator, a magnet, and a shield. A shield may form a non-flexible layer within the stack and may bend, but the shield may not be able to stretch or compress. Flexible layers may surround and adhere to the shield such that when the card is flexed, the flexible layers may stretch and compress with the movement of the shield. The dynamic magnetic stripe communications device may include one or more coils. Each coil may contain a stepped material, such that a length of a lower layer of the stepped material is longer than a length of a middle layer of the stepped material, which is longer than a length of a top layer of the stepped material.

Claims

1. A device comprising:

a dynamic magnetic stripe communications apparatus including,

an electromagnetic generator including

a first coil,

a first stepped material within the first coil,

a second coil, and

a second stepped material within the second coil.

2. The device of claim 1, wherein a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a first direction of the first dimension.

3. The device of claim 1, further comprising a magnet.

4. The device of claim 1, further comprising a printed circuit board (PCB).

5. The device of claim 1, further comprising:

a printed circuit board (PCB); and

an adhesive layer including an adhesive material.

6. The device of claim 1, further comprising:

a printed circuit board (PCB);

a magnet; and

an adhesive layer including an adhesive material between the PCB and the magnet.

7. The device of claim 1, further comprising:

a printed circuit board (PCB);

a magnet; and

an adhesive layer including an adhesive material,

wherein the adhesive layer is between the PCB and the electromagnetic generator, and

the magnet is on a side opposite the electromagnetic generator from the adhesive.

8. The device of claim 1, further comprising:

a magnet,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension, and

the magnet extends in parallel with the first and second coils in the direction.

9. The device of claim 1, further comprising:

a magnet; and

an adhesive layer,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend along a direction of the first dimension, and

the magnet is in parallel with the first and second coils on an opposite side of the first and second coils from the adhesive layer.

10. The device of claim 1, further comprising:

a printed circuit board (PCB); and

an adhesive layer including an adhesive material,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension, and

the adhesive layer is between the electromagnetic generator and the PCB.

11. The device of claim 1, further comprising:

a printed circuit board (PCB); and

an adhesive layer including an adhesive material,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension, and

the adhesive layer flexibly bonds the electromagnetic generator to the PCB.

12. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

an adhesive layer including an adhesive material forming a flexible bond between the electromagnetic generator and the flexible PCB; and

a magnetic layer including a magnetic material on an opposite side of the electromagnetic generator from the PCB,

wherein a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a direction of the first dimension.

13. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first adhesive material flexibly bonding the electromagnetic generator to the flexible PCB;

a magnetic layer including a magnetic material on an opposite side of the electromagnetic generator from the PCB; and

a second adhesive layer including a second adhesive material flexibly bonding the magnetic layer to the electromagnetic generator,

wherein a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a direction of the first dimension.

14. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first adhesive material, the electromagnetic generator flexibly bonded to the flexible PCB by the first adhesive material;

a magnetic layer including a magnetic material on an opposite side of the electromagnetic generator from the PCB;

a second adhesive layer including a second adhesive material, the magnetic layer flexibly bonded to the electromagnetic generator by the second adhesive material; and

a third adhesive layer including a third adhesive material, the third adhesive layer on an opposite side of the magnetic layer from the PCB,

wherein a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a direction of the first dimension.

15. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first adhesive material, the electromagnetic generator flexibly bonded to the flexible PCB by the first adhesive;

a magnetic layer including a magnetic material on an opposite side of the electromagnetic generator from the PCB;

a second adhesive layer including a second adhesive material, the magnetic layer flexibly bonded to the electromagnetic generator;

a shield; and

a third adhesive layer including a third adhesive material, the shield flexibly bonded to the magnetic layer on an opposite side of the magnetic layer from the PCB,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension, and

the electromagnetic generator is flexible.

16. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first flexible adhesive material between the electromagnetic generator and the flexible PCB;

a magnetic layer including a flexible magnetic material on an opposite side of the electromagnetic generator from the PCB;

a second adhesive layer including a second flexible adhesive material between the electromagnetic generator and the magnetic layer; and

a shield layer on an opposite side of the magnetic layer from the PCB,

a third adhesive layer including a third adhesive material between the shield and the magnetic layer;

wherein a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a direction of the first dimension.

17. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first flexible adhesive material between the electromagnetic generator and the flexible PCB;

a magnetic layer including a flexible magnetic material on an opposite side of the electromagnetic generator from the PCB;

a second adhesive layer including a second flexible adhesive material between the electromagnetic generator and the magnetic layer; and

a shield layer on an opposite side of the magnetic layer from the PCB,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension, and

the device is configured to flex without delaminating the shield.

18. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first flexible adhesive material between the electromagnetic generator and the flexible PCB;

a magnetic layer including a flexible magnetic material on an opposite side of the electromagnetic generator from the PCB;

a second adhesive layer including a second flexible adhesive material between the electromagnetic generator and the magnetic layer; and

a substantially non-flexible shield layer on an opposite side of the magnetic layer from the PCB,

wherein a first dimension of the device is greater than any other dimension of the device,

the first and second coils are linearly aligned and extend in a direction of the first dimension,

the electromagnetic generator is flexible, 99 and

the device is configured to flex without delaminating the shield.

19. The device of claim 1, further comprising:

a flexible printed circuit board (PCB);

a first adhesive layer including a first flexible adhesive material between the electromagnetic generator and the flexible PCB;

a second adhesive layer including a second flexible adhesive material;

a magnetic layer including a flexible magnetic material, the second flexible adhesive material between the magnetic layer and the electromagnetic generator;

a third adhesive layer including a third flexible adhesive material;

a substantially non-flexible shield, the third flexible adhesive material between the shield and the magnetic layer; and

a protective layer on a stacked structure including the first adhesive layer, the electromagnetic generator, the second adhesive layer, the magnetic layer, the third adhesive layer and the shield,

wherein the electromagnetic generator is flexible,

a first dimension of the device is greater than any other dimension of the device, and

the first and second coils are linearly aligned and extend in a direction of the first dimension.