Device with current carrying conductor to produce time-varying magnetic field

• US 9,715,649 B2
• Filed: 11/22/2015
• Issued: 07/25/2017
• Est. Priority Date: 02/22/2005
• Status: Active Grant

• Current Assignee: Icashe Incorporated
• Original Assignee: Tyfone Incorporated
• Inventors: Spitzer, Thomas N., Narendra, Siva G., Tadepalli, Prabhakar
• Primary Examiner(s): Frech, Karl D
• Application Number:
  US14/948,325
• Publication Number:
  US 20160086073A1
• Time in Patent Office: 611 Days
• Field of Search: 235449, 235450, 235451
• CPC Class Codes: G06K 19/06187 with magnetically detectable marking
• CPC Class Codes: G06K 19/06206 the magnetic marking being emulated
• CPC Class Codes: G06K 19/07 with integrated circuit chips
• CPC Class Codes: G06K 19/0703 the battery being onboard of a handheld device, e.g. a smart phone or PDA
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/0727 the arrangement being a circuit facilitating integration of the record carrier with a hand-held device such as a smart phone of PDA
• CPC Class Codes: G06K 19/073 Special arrangements for circuits, e.g. for protecting identification code in memory protection against unauthorised use of computer memory G06F12/14
• CPC Class Codes: G06K 19/07741 comprising a first part operating as a regular record carrier and a second attachable part that changes the functional appearance of said record carrier, e.g. a contact-based smart card with an adapter part which, when attached to the contact card makes the contact card function as a non-contact card
• CPC Class Codes: G06K 19/07758 arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
• CPC Class Codes: G06K 19/07762 the adhering arrangement making the record carrier wearable, e.g. having the form of a ring, watch, glove or bracelet record carriers for insertion in the human body for medical purposes A61B90/00; record carriers adapted for attachment to animals A01K11/00
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06Q 20/204 comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit
• CPC Class Codes: G06Q 20/327 Short range or proximity payments by means of M-devices
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G06Q 20/353 Payments by cards read by M-devices
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

An electronic transaction card communicates with an add-on slot of an intelligent electronic device. The add-on slot may be a memory card slot. The intelligent electronic device may be a mobile phone or other device with or without network connectivity. The electronic transaction card may have magnetic field producing circuitry compatible with magnetic card readers, smartcard circuitry, other point-of-sale interfaces, or any combination thereof.

Claims

1. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a battery; and

a conductor capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card.

2. The device of claim 1 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

3. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a battery; and

a conductor that when excited by a reversing polarity current produces a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card.

4. The device of claim 3 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

5. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a battery; and

a conductor that when excited by a reversing polarity current that varies in amplitude produces a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card.

6. The device of claim 5 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

7. A device comprising:

a cellular telephone;

a battery;

a memory to hold a transaction number;

a conductor capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

8. The device of claim 7 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

9. A device comprising:

a cellular telephone;

a battery;

a memory to hold a transaction number;

a conductor that when excited by a reversing polarity current produces a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

10. The device of claim 9 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

11. A device comprising:

a cellular telephone;

a battery;

a memory to hold a transaction number;

a conductor that when excited by a reversing polarity current that varies in amplitude produces a time-varying magnetic field that emulates a swipe of a magnetic card, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

12. The device of claim 11 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

13. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a wire capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card when excited by a current, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

14. The device of claim 13 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

15. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a wire capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card when excited by a reversing polarity current, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

16. The device of claim 15 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.

17. A device comprising:

a cellular telephone;

a memory to hold a transaction number;

a wire capable of producing a time-varying magnetic field that emulates a swipe of a magnetic card when excited by a reversing polarity current that varies in amplitude, wherein the time-varying magnetic field represents the transaction number and the transaction number is used repeatedly for each emission of the time-varying magnetic field to emulate the swipe of the magnetic card; and

a current driver to allow control of the time-varying magnetic field.

18. The device of claim 17 wherein the time-varying magnetic field emulates a swipe of a magnetic credit card.