Noncontact IC device
First Claim
Patent Images
1. A noncontact IC device comprising:
- a base card;
an IC chip mounted on the base card;
an antenna coil formed on the base card and connected to the IC chip; and
a short-circuiting circuit capable of disabling the IC chip for operation when closed and of enabling the IC chip to operate when opened, andthe base card has a main part, a removable identification part, and a breaking Part provided with folding grooves and connecting the main part and the identification part, the IC chip and the antenna coil are placed in the main part, and a part of the short-circuiting circuit is formed in the identification part.
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Accused Products
Abstract
A noncontact IC card is provided with an antenna coil, an IC chip and a short-circuiting circuit formed on a base card. The noncontact IC card is kept inoperative unless the short-circuiting circuit is opened and the noncontact IC card is rendered operative when the short-circuiting circuit is opened. The short-circuiting circuit is formed to extend across a main part and a removable identification part included in the base card. The short-circuiting circuit can be opened by removing the identification part from the base card.
107 Citations
41 Claims
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1. A noncontact IC device comprising:
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a base card; an IC chip mounted on the base card; an antenna coil formed on the base card and connected to the IC chip; and a short-circuiting circuit capable of disabling the IC chip for operation when closed and of enabling the IC chip to operate when opened, and the base card has a main part, a removable identification part, and a breaking Part provided with folding grooves and connecting the main part and the identification part, the IC chip and the antenna coil are placed in the main part, and a part of the short-circuiting circuit is formed in the identification part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A noncontact IC device comprising:
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a base card; an IC chip mounted on the base card; an antenna coil formed on the base card and connected to the IC chip; and a short-circuiting circuit capable of disabling the IC chip for operation when closed and of enabling the IC chip to operate when opened, and the short-circuiting circuit has an open circuit between a pair of conductive lines, and a connecting part disposed between the pair of conductive lines of the open circuit, said connecting part being capable of closing the open circuit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An IC device for transmitting signals to and receiving signals from an external device, which comprises:
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a base member, said base supporting communications means and a short-circuiting circuit, said communications means for transmitting signals to and receiving signals from an external device, said communications means including an IC chip for controlling transmitted signals and received signals, and said short-circuiting circuit for disabling said IC chip when said short-circuiting circuit is closed. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An IC card for transmitting signals to and receiving signals from an external device, which comprises:
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a base member, said base supporting communications means and a short-circuiting circuit and configured in card form, said communications means for transmitting signals to and receiving signals from an external device without physical contact, said communications means including an IC chip for controlling transmitted signals and received signals, said short-circuiting circuit for disabling said IC chip when said short-circuiting circuit is closed, and said short-circuiting circuit being removable from the remainder of the IC device, whereby the remainder of the IC device is then able to communicate because the short-circuiting circuit is open. - View Dependent Claims (39)
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40. An IC card for transmitting signals to and receiving signals from an external device, which comprises:
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a base member, said base supporting communications means and a short-circuiting circuit and having a configuration of a card form, said communications means for transmitting signals to and receiving signals from an external device without physical contact, said communications means including an IC chip for controlling transmitted signals and received signals, said short-circuiting circuit for disabling said IC chip when said short-circuiting circuit is closed, a connecting part, formed in a part of said short-circuiting circuit, being in a nonconductive initial state and capable of being set in a conductive state so that said short-circuiting circuit is closed, and said short-circuiting circuit being removable from the remainder of the IC device, whereby the remainder of the IC device is then able to communicate because the short-circuiting circuit is open. - View Dependent Claims (41)
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Specification