Non-contact IC card
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorMasahiko Tanaka
Life of this patent
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Abstract
A non-contact IC card includes an information storage unit for storing information, a communication controller for controlling communication with an external device, and a loop antenna for transmitting and receiving a radio wave to and from the external device. The non-contact IC card further includes a changeover switch for changing a communication distance between the external device and the card, so that the cost and size of the card can be reduced. The non-contact IC card can be used both in a long-distance mode and in a contact mode, which ensures high security.
Claims15
A non-contact IC card comprising:
- an information storage unit for storing information;
- a communication controller for controlling communication with an external device;
- a loop antenna for transmitting and receiving a radio wave to and from the external device;
- and
- a changeover switch for changing a communication distance between the external device and the card.
A non-contact IC card comprising:
- an information storage unit for storing information;
- a communication controller for controlling communication with an external device;
- a loop antenna for transmitting and receiving a radio wave to and from the external device;
- and
- a cut-off unit for forcibly cutting off the communication with the external device.
Dependencies are inferred from the claim text.