System and method for a baseband nearfield magentic stripe data transmitter

• US 8,628,012 B1
• Filed: 04/22/2013
• Issued: 01/14/2014
• Est. Priority Date: 01/20/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: LoopPay Incorporated
• Inventors: Wallner, George
• Primary Examiner(s): Haupt, Kristy A
• Application Number:
  US13/867,387
• Time in Patent Office: 267 Days
• Field of Search: 235/449, 235/493, 235/494, 235/380, 235/383
• US Class Current: 235/449
• CPC Class Codes: G06K 7/08 by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes

Abstract

The present invention describes a system and a method for a baseband near-field magnetic stripe data transmitter (MST) device that transmits payment card data from a smart-phone, or other electronic device, into a Point of Sale (POS) transaction terminal. The MST device includes a driver and an inductor. The MST receives magnetic stripe data comprising payment card data, processes the received magnetic stripe data and emits high energy magnetic pulses comprising the processed magnetic stripe data that are then received remotely by the magnetic stripe reader of the POS.

Claims

1. A system for a baseband near field magnetic stripe data transmitter comprising:

a mobile phone comprising a payment wallet application and being configured to transmit a stream of pulses comprising magnetic stripe data of a payment card;

a magnetic stripe transmission (MST) device comprising a driver and an inductor, wherein the MST device is configured to receive the stream of pulses from the mobile phone, to amplify and shape the received stream of pulses and to generate and emit high energy magnetic pulses comprising the magnetic stripe data;

wherein the emitted high energy magnetic pulses are configured to be picked up remotely by a magnetic read head; and

wherein the inductor comprises one or more windings, at wherein said one or more windings are configured to generate magnetic flux lines that are spread over a large enough area dimensioned to include a sensing aperture of the magnetic read head and to generate an inductance value that is configured to cause properly timed current pulses to reach their maximum value and thereby to cause maximum induced voltage in the magnetic react head.

2. The system of claim 1, wherein the magnetic read head converts the high energy magnetic pulses into electrical pulses.

3. The system of claim 2 wherein the magnetic read head is comprised in a point of sale (POS) device and wherein the POS device further comprises a central processing unit (CPU).

4. The system of claim 2, wherein the emitted high energy magnetic pulses are picked up remotely by the magnetic read head from a distance in the range of 1 to 2 inches.

5. The system of claim 1, wherein the MST device further comprises a magnetic stripe reader (MSR) head configured to pick up magnetic stripe card data.

6. The system of claim 1, wherein the driver comprises a high power driver circuit.

7. The system of claim 1, wherein the ratio of the inductance and resistance values of the one or more windings is in the range between 10 μ

H/Ohm and 80 μ

H/Ohm.

8. The system of claim 1, wherein the one or more windings comprise enamel insulated magnetic wire.

9. The system of claim 1, wherein the one or more windings comprise conductor traces laid out on rigid or flexible printed circuit substrate.

10. The system of claim 1, wherein the one or more windings comprise rectangular shaped windings.

11. The system of claim 1 wherein the MST device is configured to receive the magnetic stripe data from the mobile phone via a wired connection to the mobile phone'"'"'s audio jack.

12. The system of claim 1 wherein the MST device is configured to receive the magnetic stripe data from the mobile phone via a wireless connection.

13. The system of claim 1 wherein the MST device is configured to receive the magnetic stripe data from the mobile phone via a Bluetooth™

wireless connection.

14. The system of claim 1, wherein the mobile phone is further configured to transmit a separate secure wireless message and wherein the magnetic stripe data and the separate secure wireless message are combined for authentication purposes.

15. The system of claim 1, further comprising a secure microcontroller, which provides secure local storage of the payment card data and directly drives an inductor driver circuit of the driver.

16. The system of claim 15, wherein the MST device uses the secure microcontroller to encrypt, either partially or fully, the payment card data.

17. The system of claim 1, further comprising volatile and non-volatile memory for the secure storage of payment card data and other personal information.

18. The system of claim 1, wherein the magnetic stripe data of the payment card comprise card verification value (CVV) data and wherein security of a transaction is improved by changing the CVV data dynamically.

19. The system of claim 1, wherein the emitted high energy magnetic pulses comprise tokenized magnetic stripe data.

20. The system of claim 19, wherein the tokenized magnetic stripe data comprise a cryptographically generated token and wherein said cryptographically generated token is formatted as track data.

21. The system of claim 1, wherein the emitted high energy magnetic pulses comprise more than one track data.

22. The system of claim 1, wherein data other than the magnetic stripe data are formatted to resemble magnetic stripe data and the formatted data are transmitted via the MST device to a POS device'"'"'s magnetic read head.

23. The system of claim 1, wherein the MST device is further configured to transmit coupons and offers to a magnetic read head of a POS device.

24. The system of claim 1, wherein the MST device is further configured to transmit consumer personal information to a magnetic read head of a POS device.

25. A magnetic stripe transmission (MST) device comprising:

a driver;

an inductor;

a first magnetic read head;

wherein the MST device is configured to receive magnetic stripe data comprising payment card data, to process the received magnetic stripe data and to emit high energy magnetic pulses comprising the processed magnetic stripe data;

wherein the inductor is driven by a series of timed current pulses that result in a series of magnetic pulses that resemble the fluctuating magnetic field created by a moving magnetic stripe;

wherein the emitted high energy magnetic pulses are configured to be picked up remotely by a second magnetic read head that is comprised in a point of sale (POS) device; and

wherein the first magnetic read head of the MST device is configured to read magnetic stripe payment card data for storage in either a secure memory of the MST device or in a mobile wallet.

26. A system for a baseband near field magnetic stripe data transmitter comprising:

a mobile phone comprising a payment wallet application and being configured to transmit a stream of pulses comprising magnetic stripe data of a payment card;

a magnetic stripe transmission (MST) device comprising a driver and an inductor, wherein the MST device is configured to receive the stream of pulses from the mobile phone, to amplify and shape the received stream of pulses and to generate and emit high energy magnetic pulses comprising the magnetic stripe data;

wherein the emitted high energy magnetic pulses are configured to be picked up remotely by a magnetic read head;

wherein the inductor comprises one or more windings, and wherein said one or more windings are configured to generate magnetic flux lines that are spread over a large enough area dimensioned to include a sensing aperture of the magnetic read head and to generate an inductance value that is configured to cause properly timed current pulses to reach their maximum value and thereby to cause maximum induced voltage in the magnetic read head; and

wherein the one or more windings comprise rectangular shaped windings.

27. A system for a baseband near field magnetic stripe data transmitter comprising:

a mobile phone comprising a payment wallet application and being configured to transmit a stream of pulses comprising magnetic stripe data of a payment card;

a magnetic stripe transmission (MST) device comprising a driver and an inductor, wherein the MST device is configured to receive the stream of pulses from the mobile phone, to amplify and shape the received stream of pulses and to generate and emit high energy magnetic pulses comprising the magnetic stripe data; and

wherein the inductor is driven by a series of timed current pulses that result in a series of magnetic pulses that resemble the fluctuating magnetic field created by a moving magnetic stripe.

28. The system of claim 27, wherein the inductor comprises one or more windings, and wherein said one or more windings are configured to generate magnetic flux lines that are spread over a large enough area dimensioned to include a sensing aperture of a magnetic read head and to generate an inductance value that is configured to cause properly timed current pulses to reach their maximum value and thereby to cause maximum induced voltage in the magnetic read head.