Multi-card including fingerprint input unit and payment method using the same

1. A multi-card comprising:

a secure element adapted to allow multiple pieces of card information issued to a same card service to match each of a plurality of fingerprints to store matching results therein; and

a fingerprint sensor configured to receive the plurality of fingerprints inputted thereto, wherein the secure element is configured to:

produce one or more lists for each card service based on an application identifier (AID);

when there are the multiple pieces of card information having a same AID in each list, match the multiple pieces of card information with each of the plurality of fingerprints to generate an internal AID in which information on the plurality of fingerprints is further included in the multiple pieces of card information; and

select a piece of card information corresponding to a fingerprint information input from the fingerprint sensor based on the internal AID to produce transaction response information,

wherein the internal AID is generated by adding arbitrary characters to the AID or applying internal AIDs made by partially changing the AID in the card information having the same AID contained in the respective lists,

wherein the security element is further configured to:

upon a receipt of a selected card service from a payment terminal, retrieve the AID corresponding to the selected card service;

when there are multiple internal AIDs corresponding to the selected card service, select card information that matches the fingerprint information;

when there is only one internal AID corresponding to the selected card service, select card information that matches the AID retrieved, regardless of the internal AID, and

wherein the matching results are set or changeable by allowing the card information to match the fingerprints through a service application driven by a user terminal.

2. The multi-card according to claim 1 , wherein the card service comprises at least one of payment service and a membership service.

3. The multi-card according to claim 1 , wherein the secure element serves to allow the multiple pieces of card information by card service to match each of the plurality of the fingerprints, to store the matching results therein, to verify the fingerprint information inputted to the fingerprint sensor, to select one piece of card information that corresponds to the card service selected from the payment terminal and matches the fingerprint information inputted, and to produce the transaction response information having one piece of card information selected.

4. The multi-card according to claim 3 , further comprising:

a control unit for controlling operations of the secure element and the fingerprint sensor; and

a display unit for displaying at least one card service selected from the payment terminal, the card information issued to the card service selected, one piece of card information selected by the fingerprint information inputted to the fingerprint sensor, a fingerprint verification state, and a payment proceeding state.

5. An operation method of a multi-card having a secure integrated circuit (IC) chip and a fingerprint sensor, the operation method comprising:

acquiring, by the fingerprint sensor, fingerprint information;

verifying, by the secure IC chip, the fingerprint information inputted to the fingerprint sensor;

selecting, by the secure IC chip, one piece of card information that matches the fingerprint information inputted, based on information stored by allowing multiple pieces of card information issued to a same card service as one another to match each of a plurality of fingerprints; and

producing, by the secure IC chip, transaction response information with one piece of card information selected and transmitting the transaction response information to a payment terminal,

wherein selecting the one piece of card information further comprises:

producing, by the secure IC chip, one or more lists for each card service based on an application identifier (AID);

when there are the multiple pieces of card information having a same AID in each list, matching, by the secure IC chip, the multiple pieces of card information with each of the plurality of fingerprints to generate an internal AID in which information on the plurality of fingerprints is further included in the multiple pieces of card information;

selecting, by the secure IC chip, the one piece of card information corresponding to a fingerprint information input from the fingerprint sensor based on the internal AID to produce transaction response information; and

displaying, by a display, a payment proceeding state,

wherein the internal AID is generated by adding arbitrary characters to the AID or applying internal AIDs made by partially changing the AID in the card information having the same AID contained in the respective lists,

wherein the security element is further configured to:

upon a receipt of a selected card service from a payment terminal, retrieve the AID corresponding to the selected card service;

when there are multiple internal AIDs corresponding to the selected card service, select card information that matches the fingerprint information;

when there is only one internal AID corresponding to the selected card service, select card information that matches the AID retrieved, regardless of the internal AID, and

wherein the matching results are set or changeable by allowing the card information to match the fingerprints through a service application driven by a user terminal.

6. The operation method of the multi-card according to claim 5 , wherein selecting, by the secure IC chip, the one piece of card information that matches the fingerprint information inputted is carried out by selecting one piece of card information that corresponds to the card service selected from the payment terminal and matches the fingerprint information inputted, based on the information stored by allowing the card information by card service to match the fingerprints.

7. The operation method of the multi-card according to claim 6 , wherein selecting, by the secure IC chip, the one piece of card information that matches the fingerprint information inputted is carried out by selecting, when the number of card information issued to the card service selected is one, when the fingerprint information inputted is verified as a fingerprint of a user, the corresponding card information.

8. The operation method of the multi-card according to claim 6 , further comprising displaying, by the display, at least one of the card services selected from the payment terminal, the card information issued to the card service selected, one piece of card information selected by the fingerprint information inputted to the fingerprint sensor, and a fingerprint verification state.

9. The operation method of the multi-card according to claim 5 , further comprising receiving, by the secure IC chip, in a case where the card service of one piece of card information selected is local currency, a payment rejection response from the payment terminal when a district where a franchise location using the payment terminal is placed does not correspond to a district where one piece of card information selected is used.