Non-contact IC card
First Claim
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1. 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.
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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.
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Citations
15 Claims
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1. A non-contact IC card comprising:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A non-contact IC card comprising:
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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. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification