IC card and electronic devices
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsShinji Kawano, Futoshi Nakabe
Life of this patent
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Abstract
An IC card provided with a contact-type interface and a non-contact-type interface as the communication interface, and other electronic devices. The IC card identifies the kind of communication data communicated with an external device such as reader-writer, and decides on a communication interface that follows the identified communication data. Then, it is judged whether to switch the communication interface used communication for with the external device between the contact-type interface and the non-contact-type interface. And if it is decided to switch, the communication interface used for communication with the external device is switched.
Claims11
An IC card having a contact-type interface and a non-contact-type interface as a communication interface for communication with an external device, said IC card comprising:
- deciding means for deciding on a communication interface that follows communication conditions concerning communication with the external device,
- judging means for judging whether to switch the communication interface between the contact-type interface and the non-contact-type interface on the basis of the decision of said deciding means, and
- switching means for switching the communication interface used for communication with the external device in case said judging means judges that the communication interface used for communication with the external device should be switched.
An electronic device provided with a contact-type interface and a non-contact-type interface as a communication interface for communication with an external device, said electronic device comprising:
- deciding means for deciding on a communication interface that follows communication conditions concerning communication with the external device,
- judging means for judging whether to switch the communication interface used for communication with the external device between the contact-type interface and the non-contact-type interface on the basis of the decision of said deciding means, and
- switching means for switching the communication interface used for communication with the external device in case said judging means judges that the communication interface used for communication with the external device should be switched.
Dependencies are inferred from the claim text.