JP2005346549A - Non-contact ic card communication preventing device and non-contact ic card case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact IC card communication preventing device and a non-contact IC card case, which permit communication between a non-contact IC card and an external device only when a card owner wants it, and cut off communication to inhibit communication between the non-contact IC card and the external device when the card owner doesn't want it. <P>SOLUTION: The non-contact IC card which communicates with the external device without contacting is prevented from communication with the external device by utilizing an electromagnetic shield means for intercepting or attenuating induction of an electromagnetic wave between the external device and the non-contact IC card. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a non-contact IC card communication preventing apparatus and a non-contact IC card for preventing a non-contact IC card used in non-contact communication with an external device represented by a card reader / writer from communicating with the external device. In particular, the present invention relates to a non-contact IC card communication preventing device and a non-contact IC card case that do not allow communication with the external device as required by the user even when the non-contact IC card is close to the external device.

  2. Description of the Related Art Conventionally, there is known an IC card in which an IC chip in which a memory or a microcomputer is made into a chip is stored in a plastic card. I / O is performed.

  For this reason, it is difficult for a person other than the IC card owner to access the IC card possessed by the person without noticing the person. However, in recent years, non-contact IC cards have been used.

  FIG. 10 is a perspective view showing a non-contact IC card. In the non-contact IC card 60, an antenna 64 and an IC chip 66 are embedded in a card-type main body 62. With such a configuration, data and programs are read and written to and from an external device such as a card reader / writer using wireless electromagnetic waves. That is, an induced electromagnetic wave is irradiated from the external device side, the induced electromagnetic wave is received by the antenna 64 built in the non-contact IC card 60, and the induced electromotive force generated by the antenna 64 is used as the driving power of the non-contact IC card 60. Data stored in the IC chip 66 is read by the electromagnetic wave superimposed on the induced electromagnetic wave.

  In addition, technology similar to this contactless IC card has also emerged, a technology called IC tag that assumes network connection, and, like the contactless IC card, transmits and receives data etc. by wireless communication with external devices. ing. A contactless IC card used in this specification includes a device that transmits and receives data by wireless communication between an IC chip such as an IC tag and an external device.

  FIG. 11 is a conceptual diagram when a non-contact IC card is used. FIG. 11 shows a concept in which the non-contact IC card 60 transmits / receives data by being brought close to an external device 70 that transmits / receives data represented by a card reader / writer. The contactless IC card 60 and the external device 70 transmit and receive data and the like by wireless communication. In particular, even if no operation is performed on the non-contact IC card 60, the external device 70 automatically starts transmission / reception with the adjacent non-contact IC card 60.

Now, in order to protect this kind of non-contact IC card, it is often carried using a card case. In this type of card case, a non-contact IC card is housed in the case to protect it from external force and static electricity so that it will not be damaged due to external force when it is carried and it will not be damaged by static electricity. Some have been created for this purpose (for example, see Patent Document 1).
JP-A-1-198395

  However, since the contactless IC card that has been used once has the property that it can be used without contact from a position slightly away from the external device, the card holder can be used without being noticed by the holder of the contactless IC card. There is a possibility that data included in the non-contact IC card is read. When this is abused, valuable data such as monetary value data and ID data of the contactless IC card is stolen.

  For example, if a passenger has an external device for reading such as a card reader in a crowded train, the information on the non-contact IC card possessed by the passenger can be read just by approaching the passenger. there is a possibility. Among such cards, with regard to bank cards and credit cards, there is a risk that personal information and the like of the cards owned by each person can be easily stolen without the user's knowledge.

  In addition, in the case of a non-contact IC card for passing through an automatic ticket gate currently used by railway companies, there is a possibility that it will be charged that it is determined that the communication has occurred just by passing near the automatic ticket gate.

  Therefore, the present invention enables communication only when the owner wants to communicate with the non-contact IC card and the external device. When there is no intention to use the communication, the communication is interrupted and the non-contact IC card and the external device are disconnected. An object of the present invention is to provide a non-contact IC card communication prevention device and a non-contact IC card case for preventing the communication of a card.

  In order to achieve the above object, the present invention provides an external device using an electromagnetic shield means for blocking or attenuating induction of electromagnetic waves between an external device with which a non-contact IC card communicates and the non-contact IC card. A contactless IC card that communicates in a contactless manner is prevented from communicating with the external device.

  Specifically, the present invention is a non-contact IC card communication preventing device for preventing a non-contact IC card capable of non-contact communication with an external device from communicating with the external device, A non-contact IC card having a planar shape larger than an antenna built in the non-contact IC card, and electromagnetic shielding means for blocking or attenuating induction of electromagnetic waves between the external device and the non-contact IC card, It is a non-contact IC card communication preventing device arranged on one or both of the front surface and the back surface of the card.

  If the non-contact IC card communication preventing device of the present invention is arranged so as to overlap with the non-contact IC card, it is possible to prevent the non-contact IC card from communicating with an external device without being noticed by the person. it can.

  Another invention of the present application is a non-contact IC card case for storing a non-contact IC card provided with the above-described non-contact IC card communication preventing device.

  If the non-contact IC card case is put in and held in the non-contact IC card case of the present invention, it is possible to prevent the non-contact IC card from communicating with an external device without being noticed by the person.

  Other inventions of the present application block the induction of electromagnetic waves between the non-contact IC card and the external device that communicates with the non-contact IC card with a planar shape larger than the antenna built in the non-contact IC card. Alternatively, a spread-type non-contact IC card case having two or more surfaces provided with an electromagnetic shield means for attenuating and a storage portion for storing the non-contact IC card, wherein the electromagnetic shield is provided on one surface of the spread The non-contact IC card case is characterized in that means is disposed and the storage portion is disposed on the other surface of the spread.

  If the non-contact IC card case is put in and held in the non-contact IC card case of the present invention, it is possible to prevent the non-contact IC card from communicating with an external device without being noticed by the person. When necessary, the contactless IC card can communicate with an external device by opening the contactless IC card case.

  Other inventions of the present application block the induction of electromagnetic waves between the non-contact IC card and the external device that communicates with the non-contact IC card with a planar shape larger than the antenna built in the non-contact IC card. Alternatively, a spread-type non-contact IC card case having three or more surfaces provided with an electromagnetic shield means for attenuating and a storage portion for storing the non-contact IC card, wherein the electromagnetic shield is provided on two surfaces of the spread In the state where the means is arranged and the non-contact IC card case is closed, one spread surface where the storage portion is arranged is sandwiched between the other two surfaces where the electromagnetic shielding means is arranged. This is a non-contact IC card case.

  By holding a non-contact IC card in the non-contact IC card case of the present invention, it is possible to more strongly prevent the non-contact IC card from communicating with an external device without being noticed by the user. Can do. When necessary, the contactless IC card can communicate with an external device by opening the contactless IC card case.

  According to the present invention, communication is possible only when the owner wants to communicate between the non-contact IC card and the external device, and when there is no intention to use the communication, the communication is interrupted and the non-contact IC card and the external device are disconnected. It is possible to provide a non-contact IC card communication preventing device and a non-contact IC card case for preventing the communication of the above.

Hereinafter, the best mode for carrying out the present invention will be described.
(Embodiment 1)
FIG. 1 is a diagram showing a non-contact IC card communication preventing apparatus 10 according to an embodiment of the present invention. In FIG. 1, reference numeral 12 denotes a main body of the non-contact IC card communication preventing apparatus 10, and reference numeral 14 denotes electromagnetic shielding means provided in the non-contact IC card communication preventing apparatus 10. The description will be made with reference to FIGS. 10 and 11 as needed.

  The electromagnetic shielding means 14 is provided between the external device 70 and the non-contact IC card 60 in order to prevent the non-contact IC card 60 that communicates with the external device 70 in FIG. Block or attenuate the induction of electromagnetic waves.

  The electromagnetic shielding means 14 may be a planar shape having a size exceeding the antenna 62 built in the non-contact IC card 60 in FIG. The antenna 62 incorporated in the non-contact IC card 60 is often an antenna that is used for both transmission and reception, but is not limited to this, and may be divided for transmission and reception. In the case where transmission and reception antennas are provided separately, communication can be prevented if only one of the antennas can be shielded. There are various antennas 62 depending on the system of the non-contact IC card, from those having a coin-like size to those having a shape along the inner periphery of the non-contact IC card 60. Even if it exists, the electromagnetic shielding means 14 should just be the magnitude | size exceeding the antenna 60, and there is no limitation about a specific shape at all.

  The electromagnetic shielding means 14 is, for example, a metal made in a mesh shape, a lattice-shaped metal, a metal foil, a metal plate, a metal powder contained in the main body 12, or a metal thread sewn in the main body 12. Any of them.

  Any metal may be used as long as it has conductivity, and includes any metal having conductivity such as gold, silver, platinum, copper, aluminum, iron, nickel and the like. In addition, the material is not limited to a metal as long as it exhibits a conductivity and an electromagnetic shielding effect can be obtained.

  Moreover, the main body 12 may be comprised with the above-mentioned metal foil and a metal plate, and what comprised the metal in the shape of a lattice or mesh as above-mentioned. Furthermore, any material such as plastic, cloth, paper, etc. can be used as the main body 12. In that case, the electromagnetic shielding means 14 can be applied to the main body 12, bonded together, and sewn.

  For example, considering the case where the main body 12 is configured as a plastic, the main body 12 can be made of any substance such as polyethylene, polypropylene, or polyethylene terephthalate. And the one formed with a plastic film mixed with conductive powder in the main body 12, the one formed with a plastic film with a metal thin film deposited on the surface, and the plastic film with a metal foil attached on the surface Various forms such as those formed by plastic films with conductive resin coated on the surface, those formed by plastic films with metal wires or metal nets embedded inside, etc. Conceivable. Either aspect is understood as the electromagnetic shielding means of the present invention.

  Furthermore, it is also optional to use a configuration in which the back surface of the main body 12 is used as a sticker and attached to a general card case.

  FIG. 2 is a diagram showing the arrangement of the non-contact IC card communication preventing device 10 and the non-contact IC card 60 according to one embodiment of the present invention. FIG. 2 shows a state where the non-contact IC card communication preventing device 10 is arranged in parallel with the non-contact IC card 60. The non-contact IC card communication preventing device 10 may be disposed on one or both of the front surface and the back surface of the non-contact IC card 60. The fact that communication between the external device 70 and the non-contact IC card 60 in FIG. 11 can be prevented by such an arrangement will be described later.

  FIG. 3 is a diagram illustrating a usage state of the non-contact IC communication preventing apparatus 10 according to the embodiment of the present invention. FIG. 3 shows a state where the non-contact IC card 60 and the non-contact IC card communication preventing apparatus 10 according to the present invention are stored together in a general card storage card case 30. If stored in this way, it is always placed on one of the front and back surfaces of the non-contact IC card 60. Further, two non-contact IC card communication preventing devices 10 according to the present invention may be prepared and stored so as to sandwich the non-contact IC card 10 therebetween.

  FIG. 4 is an explanatory diagram showing a state where the non-contact IC card communication preventing apparatus 10 according to one embodiment of the present invention shields electromagnetic waves from the external device 70 in FIG.

  In general, as the frequency of the electromagnetic wave used increases, the electromagnetic wave travels linearly, so that an electromagnetic wave shadow is formed on the back side of the electromagnetic shield means 14. If this property is used, the electromagnetic shield means 14 is placed on the surface of the non-contact IC card 60 when viewed from the external device 70 side in FIG. 11, thereby preventing the non-contact IC card 60 from communicating with the external device 70. Can do.

  FIG. 5 is an explanatory diagram showing a state where the non-contact IC card communication preventing apparatus 10 according to one embodiment of the present invention is blocking electromagnetic waves from the external device 70 in FIG.

  In general, since there is no electromagnetic wave in the conductor, the electromagnetic wave is disturbed by the boundary condition at the boundary between the air and the conductor, so that an external device exists on the non-contact IC card 60 side as shown in FIG. Even if it is, it can prevent that the non-contact IC card 60 communicates with an external device. It has been demonstrated that the communication is hindered if the distance ("A" in FIG. 5) between the non-contact IC card 60 and the non-contact IC card communication prevention device 10 is within a fraction of the wavelength of the transmitted / received electromagnetic wave. Therefore, as shown in FIG. 5, the non-contact IC card communication preventing apparatus 10 according to the present invention may be arranged on the back surface of the non-contact IC card 60 as viewed from the external device 70 in FIG.

  This embodiment has an advantage that communication with an external device can be prevented because at least one surface of the non-contact IC card case is electromagnetically shielded.

(Embodiment 2)
FIG. 6 is a diagram showing a non-contact IC card case 40 according to an embodiment of the present invention. FIG. 6 shows a non-contact IC card case 40 that houses the non-contact IC card 60 and includes the non-contact IC card communication preventing apparatus 10 described in the first embodiment.

  As described in the above (Embodiment 1), the non-contact IC card communication prevention device 10 blocks or attenuates the induction of electromagnetic waves between the external device 70 (see FIG. 11) and the non-contact IC card 60. Electromagnetic shield means 14 (see FIG. 1) having a shape covering an antenna built in the non-contact IC card is provided.

  The non-contact IC card case 40 is configured to include the non-contact IC card communication preventing device 10 on one or both of the front surface and the back surface of a case that stores various cards.

  According to the present embodiment, if the non-contact IC card 60 is housed in the non-contact IC card case 40 provided with the non-contact IC card communication prevention device 10, communication between the non-contact IC card 60 and the external device is prevented. There is an advantage that you can. When the non-contact IC card 60 is used, the non-contact IC card 60 may be taken out from the non-contact IC card case 40.

(Embodiment 3)
FIG. 7 is a view showing another non-contact IC card case 50 according to an embodiment of the present invention. FIG. 7 shows a spread-type contactless IC card case 50 in which the electromagnetic shielding means 14 described in the first embodiment is provided in the card case main body 52. Blocking the induction of electromagnetic waves between the non-contact IC card 60 and an external device (not shown) having a planar shape exceeding the antenna built in the non-contact IC card 60 and communicating with the non-contact IC card 60 This is a spread-type non-contact IC card case having two or more surfaces provided with an electromagnetic shield means 14 for attenuation and a storage portion 15 for storing the non-contact IC card 60. When the non-contact IC card case 50 is in a closed state (FIG. 7B), the storage unit 15 in which the non-contact IC card 60 is stored and the electromagnetic shield means 14 are close to each other and open ( In FIG. 7A, the storage unit 15 in which the non-contact IC card 60 is stored and the electromagnetic shield means 14 are separated.

  According to the present embodiment, when the contactless IC card 60 is used, the contactless IC card 60 and the external device can communicate with each other by using the contactless IC card 60, and the contactless IC card 60 is used. If there is no intention, the non-contact IC card case 50 may be closed. It can be used without removing the non-contact IC card 60 from the non-contact IC card case 50 during use. If the non-contact IC card case 50 is closed, the non-contact IC card 60 communicates with an external device. There is an advantage that this can be prevented.

  In FIG. 7, the card case main body 52 is configured with two surfaces, but is not limited to two surfaces.

(Embodiment 4)
FIG. 8 is a view showing another non-contact IC card case 50 according to an embodiment of the present invention. FIG. 8 shows a spread-type non-contact IC card case 50 in which the card case main body 52 includes the electromagnetic shielding means 14 described in the first embodiment. Blocking the induction of electromagnetic waves between the non-contact IC card 60 and an external device (not shown) having a planar shape exceeding the antenna built in the non-contact IC card 60 and communicating with the non-contact IC card 60 This is a spread-type non-contact IC card case having three or more surfaces provided with an electromagnetic shield means 14 for attenuation and a storage portion 15 for storing the non-contact IC card 60. When the non-contact IC card case 50 is in the closed state (FIG. 8B), one side of the spread (where the slot 16 in FIG. 8B) is disposed is an electromagnetic shield means. 14 is sandwiched between the other two surfaces, and in the open state (FIG. 8A), the storage unit 15 in which the non-contact IC card 60 is stored and the electromagnetic shielding means 14 are separated from each other. It becomes a state.

  According to the present embodiment, when the contactless IC card 60 is used, the contactless IC card 60 and the external device can communicate with each other by using the contactless IC card 60, and the contactless IC card 60 is used. If there is no intention, the non-contact IC card case 50 may be closed. It can be used without removing the non-contact IC card 60 from the non-contact IC card case 50 during use. If the non-contact IC card case 50 is closed, the non-contact IC card 60 communicates with an external device. There is an advantage that this can be prevented.

  In FIG. 8, the card case main body 52 is configured with three surfaces, but is not limited to three surfaces.

(Embodiment 5)
FIG. 9 is a view showing another non-contact IC card case 50 according to an embodiment of the present invention. FIG. 9 shows a spread-type non-contact IC card case 50 in which the electromagnetic shielding means 14 described in the first embodiment is provided in the card case main body 52. Cut off the induction of electromagnetic waves between the non-contact IC card 60 and an external device (not shown) having a planar shape exceeding the antenna built in the non-contact IC card 60 and communicating with the non-contact IC card 60 This is a spread-type non-contact IC card case having three or more surfaces provided with an electromagnetic shield means 14 for attenuation and a storage portion 15 for storing the non-contact IC card 60. The difference from (Embodiment 4) is that the card case body 52 is continuous on three sides. When the non-contact IC card case 50 is in a closed state (FIG. 9B), one surface of the spread where the storage unit 15 is disposed is the other two surfaces where the electromagnetic shielding means 14 is disposed. In the open state (FIG. 9A), the storage unit 15 in which the non-contact IC card 60 is stored and the electromagnetic shield means 14 are separated from each other.

  According to the present embodiment, when the contactless IC card 60 is used, the contactless IC card 60 and the external device can communicate with each other by using the contactless IC card 60, and the contactless IC card 60 is used. If there is no intention, the non-contact IC card case 50 may be closed. It can be used without removing the non-contact IC card 60 from the non-contact IC card case 50 during use. If the non-contact IC card case 50 is closed, the non-contact IC card 60 communicates with an external device. There is an advantage that this can be prevented.

  In FIG. 9, the card case main body 52 is configured with three surfaces, but is not limited to three surfaces.

The non-contact IC card communication preventing apparatus of the present invention can be used not only as a single unit, but also as an apparatus for periodic insertion or storing in a wallet.
In addition, the non-contact IC card case of the present invention can be applied not only as a case for storing a non-contact IC card, but also in a regular case and a wallet.

It is a figure which shows the non-contact IC card communication prevention apparatus which concerns on one Embodiment of this invention. It is a figure which shows arrangement | positioning with the non-contact IC card communication prevention apparatus and non-contact IC card which concern on one Embodiment of this invention. It is a figure which shows the use condition of the non-contact IC communication prevention apparatus which concerns on one Embodiment of this invention. It is explanatory drawing which shows the state which the non-contact IC card communication prevention apparatus which concerns on one Embodiment of this invention has shielded the electromagnetic waves from an external device. It is explanatory drawing which shows the state which the communication with the electromagnetic waves from the external device is preventing the non-contact IC card communication prevention apparatus which concerns on one Embodiment of this invention. It is a figure which shows the non-contact IC card case which concerns on one Embodiment of this invention. It is a figure which shows the other non-contact IC card case which concerns on one Embodiment of this invention. It is a figure which shows the other non-contact IC card case which concerns on one Embodiment of this invention. It is a figure which shows the other non-contact IC card case which concerns on one Embodiment of this invention. It is a perspective view which shows a non-contact IC card. It is a conceptual diagram in the case of using a non-contact IC card.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Non-contact IC card communication prevention apparatus 12 Main body 14 Electromagnetic shielding means 15 Storage part 16 Middle tongue 30 Card case 40 Non-contact IC card case 50 Non-contact IC card case 52 Main body 60 Non-contact IC card 62 Main body 64 Antenna 66 IC chip 70 External device

Claims (4)

A non-contact IC card communication preventing device for preventing a non-contact IC card capable of non-contact communication with an external device from communicating with the external device,
An electromagnetic shielding means for blocking or attenuating induction of electromagnetic waves between the external device and the non-contact IC card, and having a planar shape larger than an antenna built in the non-contact IC card;
A non-contact IC card communication preventing apparatus disposed on one or both of the front and back surfaces of the non-contact IC card.   A non-contact IC card case for storing a non-contact IC card, comprising the non-contact IC card communication preventing device according to claim 1. Electromagnetic shielding means for blocking or attenuating induction of electromagnetic waves between the non-contact IC card and a planar shape larger than the antenna built in the non-contact IC card, and the external device with which the non-contact IC card communicates When,
A spread-type non-contact IC card case having two or more surfaces provided with a storage unit for storing the non-contact IC card,
The electromagnetic shielding means is arranged on one side of the spread,
A non-contact IC card case, wherein the storage portion is arranged on the other surface of the spread. Electromagnetic shielding means for blocking or attenuating induction of electromagnetic waves between the non-contact IC card and a planar shape larger than the antenna built in the non-contact IC card, and the external device with which the non-contact IC card communicates When,
A spread-type non-contact IC card case having three or more surfaces, and a storage unit for storing the non-contact IC card,
The electromagnetic shielding means is arranged on two sides of the spread,
In a state in which the non-contact IC card case is closed, one spread surface on which the storage unit is disposed is sandwiched between the other two surfaces on which the electromagnetic shielding means is disposed. Non-contact IC card case.

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