IC card, portable terminal, and portable electronic apparatus

Patent metadata

Field	Value
Publication number	US-9679236-B2
Application number	US-201514848689-A
Country	US
Kind code	B2
Filing date	Sep 9, 2015
Priority date	Sep 9, 2014
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

An IC card includes a communication unit and a controller. The communication unit can communicate with one communication destination by a plurality of interfaces including a first interface and a second interface. The controller processes a command received by the communication unit, and makes the communication unit transmit a response to the command. In a case where the first interface becomes unavailable after the communication unit receives the command by the first interface until the communication unit transmits the response to the command, the controller makes the communication unit transmit a response containing discontinuation information indicating that the transmission of the response to the command received by the first interface is discontinued by the second interface.

First claim

What is claimed is:

1. An IC card comprising:
a communication unit that includes a first interface and a second interface, and that is capable of communicating with an external device;
a controller that executes a command received by the communication unit, and that makes the communication unit transmit a response to the command; and
a storage unit,
wherein the controller is configured to receive a first command from the external device by the first interface execute the first command received, when the communication unit cannot output a first response that is a processing result of the first command by the first interface to the external device, store the first response to the storage unit as a discontinued response, and when the communication unit receives a special command to request for transmitting the discontinued response from the external device by the second interface, read out the discontinued response from the storage unit and make the communication unit transmit a response containing the discontinued response as a response to the special command by the second interface to the external device.

2. The IC card according to claim 1 ,
wherein the controller unit determines whether or not the discontinued response is stored in the storage unit when the communication unit receives an arbitrary command other than the special command from the external device by the second interface, and
wherein the controller makes the communication unit transmit, to the external device, a response containing discontinuation information indicating that the communication unit could not output the first response to the external device, as a response to the arbitrary command, by the second interface if the controller determines that the discontinued response is stored in the storage unit.

3. The IC card according to claim 2 ,
wherein the controller makes the communication unit transmit the response containing the discontinuation information when the arbitrary command is normally ended.

4. The IC card according to claim 1 ,
wherein the controller deletes the discontinued response from the storage unit after transmitting the response containing the discontinued response.

Assignees

• Toshiba Kk

Inventors

• Tsuboi Tomomi

Classifications

• G06K19/0723 Primary

  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 title

• G06K19/07769

  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

• H04M1/725

  Cordless telephones (user interfaces specially adapted therefor H04M1/724) · CPC title

• G06K19/073 Primary

  Special arrangements for circuits, e.g. for protecting identification code in memory (protection against unauthorised use of computer memory G06F12/14) · CPC title

• G06K19/07766

  comprising at least a second communication arrangement in addition to a first non-contact communication arrangement · CPC title