Smart Card That Stores Invisible Signatures

• US 20080037842A1
• Filed: 05/06/2004
• Published: 02/14/2008
• Est. Priority Date: 05/08/2003
• Status: Abandoned Application

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Trajkovic, Miroslav, Gutta, Srinivas, Philomin, Vasanth
• Application Number:
  US10/555,552
• Publication Number:
  US 20080037842A1
• Time in Patent Office: Days
• US Class Current: 382/119
• 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 20/40145 Biometric identity checks
• CPC Class Codes: G07C 9/257 electronically G07C9/26 takes precedence
• CPC Class Codes: G07C 9/26 using a biometric sensor integrated in the pass
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system

Abstract

A transaction card 10 for use in a transaction includes a memory 15 and pressure sensors 20. The authorized user provides biometric data, such as a signature, by signing on the pressure sensors (20) using a pointer for storage in the memory (15) when the card is used for the first time. The signature is not visible on the card for added security. At the point of use of the transaction card (10), such as the point of sale, the user signs on an input device (50) such as a digital tablet, a tablet with pressure sensors or a slip of paper. This newly acquired signature (55) is compared with the signature stored on the transaction card (10), such as by displaying the stored signature out of the view of the user and comparing displayed signature with the acquired signature (55). The comparison may be performed by the service-providing associate or by a processor coupled to the input device (50).

Claims

1. A transaction card for use in a transaction comprising:

a memory which is configured to store biometric data of an authorized user of said transaction card; and

pressure sensors coupled to said memory, said pressure sensors being configured to capture said biometric data of said authorized user and store said biometric data in said memory.

2. The transaction card 10 of claim 1, wherein said biometric data is not visible on said transaction card.

3. The transaction card of claim 1, further comprising a processor configured to read said biometric data of said authorized user, and store said biometric data in said memory when said authorized user inputs said biometric data for a first time.

4. The transaction card of claim 3, wherein said processor is configured to prevent storing in said memory data received from said pressures sensors once said biometric data have been stored in said memory.

5. The transaction card of claim 3, wherein said processor is configured to store said biometric data after said authorized user accepts storage of said biometric data.

6. The transaction card of claim 3, wherein said processor is configured to prompt said authorized user to provide a storage confirmation of said biometric data prior to storing said biometric data in said memory 15.

7. The transaction card of claim 6, wherein said processor is configured to store said biometric information after receiving said storage confirmation.

8. The transaction card of claim 6, wherein said storage confirmation is provided through at least one of said pressure sensors.

9. The transaction card of claim 6, wherein said processor 25 is configured to store said biometric data after receiving said storage confirmation through at least a further pressure sensor.

10. The transaction card of claim 1, wherein said biometric data includes a signature of said authorized user.

11. The transaction card of claim 10, wherein said pressure sensors are further configured to capture parameters of said signature, said parameters including at least one of writing style and pressure levels of said signature.

12. The transaction card of claim 1, wherein said pressure sensors are further configured to capture parameters of said biometric data.

13. The transaction card of claim 12, wherein said pressure points include variable pressure levels.

14. The transaction card of claim 1, wherein said memory includes further biometric data of at least one additional authorized user.

15. The transaction card of claim 1, further comprising a processor configured to read biometric information of a predetermined number of authorized users, and stores said biometric information in said memory when said authorized users provide said biometric information for a first time.

16. The transaction card of claim 15, wherein said processor is configured to prevent storing in said memory additional biometric information of additional authorized users that exceed said predetermined number.

17. A transaction card for use in a transaction comprising:

memory means for storing biometric data of an authorized user of said transaction card; and

sensing means for capturing said biometric data of said authorized user and store said biometric data in said memory means.

18. An authenticating system for authenticating an authorized user comprising:

a transaction card for use in a transaction, said transaction card having a memory and a processor, said memory being configured to store biometric data of said authorized user of said transaction card, wherein said transaction card includes pressure sensors coupled to said memory, said pressure sensors being configured to capture said biometric data of said authorized user and store said biometric data in said memory; and

a card reader configured to read said biometric data from said memory.

19. The authenticating system of claim 18, further comprising an input device configured to obtain biometric information from said authorized user for comparison with said biometric data and completion of said transaction.

20. The authenticating system of claim 19, wherein said biometric data stored in said memory is visible on said input device.

21. The authenticating system of claim 18, further comprising a display configured to display said biometric data stored in said memory.

22. A method of verifying authorization of a user of a transaction card to perform a transaction comprising:

providing biometric data of said authorized user through pressure sensors of said transaction card;

storing said biometric data in a memory of said transaction card;

reading said biometric data by an input device; and

receiving a biometric information of said authorized user by said input device for comparison with said biometric data.

23. The method of claim 22, wherein said storing act is performed when said transaction card is used for a first time.

24. The method of claim 22, further comprising:

displaying said biometric data; and

allowing said transaction when a match between said biometric information and said biometric data is determined.