Dual-interface payment device with display

Patent metadata

Field	Value
Publication number	US-2016321533-A1
Application number	US-201415105561-A
Country	US
Kind code	A1
Filing date	Dec 3, 2014
Priority date	Dec 17, 2013
Publication date	Nov 3, 2016
Grant date	—

Abstract

The invention relates to a payment device 100 comprising a secure integrated circuit SE with a dual interface. A connector 110 is connected to the contact type interface in order to communicate with an external reader. An antenna 140 is connected to the contactless interface. The device also comprises a reader circuit 120, 130, 150 compatible with the secure integrated circuit SE, wherein the reader circuit is connected in parallel to the connector 110. An independent battery BAT is used to power the reader circuit. A power switching circuit 160 connected to a communication field detection circuit 170, wherein said power switching circuit is capable of powering the reader circuit after a communication field is detected.

First claim

1 . A payment device comprising:
a secure integrated circuit with a contactless interface, a contact type interface and a processing circuit, wherein said integrated circuit can be powered by its contact type interface or its contactless interface, at least one connector connected to the contact type interface in order to communicate with an external reader, at least one antenna connected to the contactless interface, designed to power the secure integrated circuit and communicate with a reader that emits a communication field, a reader circuit compatible with the secure integrated circuit including a display and entry keys wherein the reader circuit is connected in parallel to the connector, an independent battery for powering the reader circuit, and a power switching circuit, connected to a communication field detection circuit capable of powering the reader circuit after detecting a communication field.

2 . The device according to claim 1 , wherein said communication field detection circuit is the secure circuit, which has an output (I/O) connected to the switching circuit to report the detection of a communication field.

3 . The device according to claim 1 , wherein the communication field detection circuit is an independent circuit of the secure circuit, wherein said detection circuit is connected to the power switching circuit.

4 . The device according to claim 1 , wherein the reader circuit has a delay in order to power the secure circuit after a predetermined time after the communication field is detected.

5 . The device according to claim 1 , wherein the reader circuit powers the secure circuit after the communication field disappears.

6 . The device according to claim 2 , wherein the secure circuit triggers the power switching circuit after the communication field is detected only if the transaction requires PIN number verification

7 . The device according to claim 4 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

8 . The device according to claim 1 , wherein the device has the outer form of a bank card.

9 . The device according to claim 1 , wherein the contact type interface complies with the standard ISO7816.

10 . The device according to claim 1 , wherein the contactless interface complies with the standard ISO14443.

11 . A method for powering the payment device comprising a secure integrated circuit with a contactless interface, a contact type interface and a processing circuit, wherein said integrated circuit can be powered by its contact type interface or its contactless interface, wherein said device comprises a reader circuit compatible with the secure integrated circuit including a display and entry keys, wherein the reader circuit is connected in parallel to a connector of the contact type interface and is powered by an independent battery, and powering the reader circuit after a communication field is detected.

12 . The method according to claim 11 , wherein the reader circuit powers the secure circuit after a predetermined time after the communication field is detected.

13 . The method according to claim 11 , wherein the reader circuit powers the secure circuit after the communication field disappears.

14 . The method according to claim 11 , wherein the secure circuit triggers the power switching circuit after the communication field is detected only if the transaction requires PIN number verification.

15 . The method according to claim 12 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

16 . The device according to claim 5 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

17 . The device according to claim 6 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

18 . The method according to claim 13 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

19 . The method according to claim 14 , wherein the reader circuit switches off the power to the secure integrated circuit when a communication field is detected.

Assignees

• Gemalto Sa

Inventors

• Thill Michel

Classifications

• G06K19/0705

  the battery being connected to a power saving arrangement · CPC title

• G06K19/07709

  the interface being a keyboard · CPC title

• G06K19/07769 Primary

  the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface · CPC title

• G06K19/07707

  the visual interface being a display, e.g. LCD or electronic ink · CPC title