JP6482302B2 - Non-contact IC card communication adjustment plate and non-contact IC card holder - Google Patents

Description

  The present invention is used by being superimposed on a non-contact IC card that can communicate with an external reader using electromagnetic waves transmitted from an external reader (card reader). The present invention relates to a contactless IC card communication adjustment plate for adjusting a communication state with a card.

  Conventionally, non-contact IC cards that can communicate with external readers using electromagnetic waves transmitted from external readers (card readers) are used as IC tickets, security cards, etc. The field of use is expanding further. Further, with the multi-functionalization of IC cards, composite IC cards (composite non-contact IC cards) in which a contact IC chip and a non-contact IC chip are mounted on the same card are increasing.

  Such a non-contact IC card has been widely used and spread, and the number of users who are using any non-contact IC card continues to increase. In addition, many users use a plurality of non-contact IC cards.

  For this reason, in order to improve convenience when using a plurality of non-contact IC cards, one non-contact IC card is superposed on each side of one non-contact IC card communication adjustment plate. A non-contact IC card communication adjustment plate has been developed that can be read well by an external reading device and can prevent reverse reading. As such a non-contact IC card communication adjustment plate, for example, there is a non-contact IC card communication adjustment plate proposed by the applicant of the present application in Patent Document 1.

  That is, it has a set of two magnetic sheets laminated on one or both sides of the shield sheet of the non-contact IC card communication adjusting plate, and the position of the magnetic sheet can be changed on the shield sheet. Accordingly, it is possible to provide a non-contact IC card communication adjustment plate with extremely few occurrences of reading errors regardless of the specifications of the external reader or the composite non-contact IC card.

JP 2012-243290 A

  However, the technique described in Patent Document 1 requires two magnetic sheets for each side of the shield sheet. Furthermore, since a unique configuration such as a protrusion, a guide groove, and a fixing hole for enabling the positions of the two magnetic sheets to be changed is necessary, there is a problem that an increase in manufacturing cost is unavoidable.

  In addition, many users have a plurality of non-contact IC cards as described above, and the non-contact IC card communication adjustment plate is substantially the same as the non-contact IC card so as not to be bulky when carrying a plurality of cards. There is a request to make it as small as possible. However, when the non-contact IC card communication adjustment plate is brought close to the same size as the non-contact IC card, there arises a problem that back-reading easily occurs.

  By the way, the composite IC card as described above is limited in the shape, arrangement, size, and the like of the antenna coil, which is a component as a non-contact IC card, compared to a non-contact IC card that is not a composite type. The inventor of the present application has a rectangular antenna coil wiring shape for any non-contact IC card that is highly responsive to electromagnetic waves from an external reader at present, even if it is not a composite non-contact IC card. Yes, the dimensions are almost the same, and all of the non-contact IC cards with low responsiveness have a so-called tree leaf type anti-collision type, and the shape and dimensions are almost the same. I found.

  Accordingly, the applicant of the present application pays attention to the fact that the shape and dimensions of the antenna coil are limited in this way, and thus the non-contact IC card capable of solving the above-mentioned problems while satisfying the above-mentioned demands of the user. Research and development was conducted on the communication adjustment board.

  In the present invention, the non-contact IC card communication adjustment plate is made substantially the same size as the non-contact IC card, and any combination of the non-contact IC card with high responsiveness and the non-contact IC card with low responsiveness is used. Another object of the present invention is to provide a non-contact IC card communication adjustment plate that can be satisfactorily read by an external reader and can prevent occurrence of reverse reading.

The gist of the present invention for achieving the object lies in the inventions of the following items.
[1] Non-contact IC card (30) having antenna coils (33A, 33B) for receiving and transmitting electromagnetic waves transmitted from the external reader (40) and capable of non-contact communication with the external reader (40) , 30A, 30B) and a non-contact IC card communication adjustment plate (1) for adjusting the communication state between the external reading device (40) and the non-contact IC card (30, 30A, 30B). )
A shield sheet (10) that blocks or attenuates the electromagnetic wave, and a magnetic sheet (20) that is laminated on one or both sides of the shield sheet (10) and transmits the electromagnetic wave,
The shield sheet (10) is formed in substantially the same shape and shape as the outer dimensions of the non-contact IC card (30, 30A, 30B),
The magnetic sheet (20) overlaps the entire antenna coil (33B) with respect to the antenna coil (33B) of the non-contact IC card (30B) having low responsiveness to the electromagnetic waves, but has high responsiveness to the electromagnetic waves. The antenna coil (33A) of the non-contact IC card (30A) has a shape in which a predetermined ratio of the entire antenna coil (33A) does not overlap, and only a part of the antenna coil (33A) is on the periphery of the shield sheet (10). A contactless IC card communication adjustment plate (1) characterized in that

[2] The item [1], wherein the magnetic sheet (20) has a two-fold rotational symmetry, and only a part of the symmetrical shape reaches the periphery of the shield sheet (10). Non-contact IC card communication adjustment plate (1).

[3] The non-contact IC card (30, 30A, 30B) has a common wiring shape type of the antenna coil (33B) of the non-contact IC card (30B) with low responsiveness, and the responsive The wiring shape type of the antenna coil (33A) of the high non-contact IC card (30A) is common and is different from the wiring shape type of the antenna coil (33B) of the non-contact IC card (30B) having low response. The contactless IC card communication adjusting plate (1) according to item [1] or [2].

[4] The wiring shape type of the antenna coil (33B) of the non-contact IC card (30B) having low responsiveness is an anti-collision type, and the antenna coil (33A) of the non-contact IC card (30A) having high responsiveness. The wiring shape type is a rectangular type,
The magnetic sheet (20) includes a long side portion (21) extending along the long side (11) of the shield sheet (10), and a short side portion (22) extending from one end of the long side portion (21). Have
In the long side part (21), only the other end different from the one end from which the short side part (22) extends reaches the short side (12) of the shield sheet (10).
On the short side (22) side, only the other end different from the one end extending from the long side (21) reaches the short side (12) of the shield sheet (10),
In the use state in which the shield sheet (10) is overlaid on the non-contact IC card (30A, 30B), the anti-collision type antenna coil (33B) is entirely overlapped with the magnetic sheet (20), and is rectangular type. The non-overlapping antenna coil (33A) has a non-overlapping portion outside the short side (22) of the magnetic sheet (20). Contact IC card communication adjustment plate (1).

[5] Non-contact IC card holder (50) used with the non-contact IC card (30, 30A, 30B) that can communicate with the external reader (40) in a non-contact manner using electromagnetic waves while being stored. )
A communication state between the external reader (40) and the non-contact IC card (30, 30A, 30B) is stored in an IC card storage (51) for storing the non-contact IC card (30, 30A, 30B). A non-contact IC card communication adjustment plate (1) according to any one of items [1] to [4] for adjustment,
The non-contact IC card communication adjustment plate (1) is attached so as to overlap the non-contact IC card (30, 30A, 30B) stored in the IC card storage unit (51). Card holder (50).

The present invention operates as follows.
According to the non-contact IC card communication adjustment plate (1) according to the present invention, the shield sheet (10) is a conductive sheet capable of blocking or attenuating electromagnetic waves to be transmitted. Moreover, a magnetic sheet (20) can permeate | transmit electromagnetic waves more densely than an air layer.

  Therefore, when the non-contact IC card communication adjustment plate (1) is superimposed on the side facing the external reading device (40) of the front and back surfaces of the non-contact IC card (30, 30A, 30B). The shield sheet (10) blocks electromagnetic waves from the external reader (40) regardless of whether the surface on the non-contact IC card communication adjustment plate (1) side is a surface provided with the magnetic sheet (20). Alternatively, the communication between the non-contact IC card (30, 30A, 30B) and the external reading device (40) can be prevented by attenuation.

  Conversely, when the non-contact IC card communication adjustment plate (1) is superimposed on the non-contact IC card (30, 30A, 30B) on the side opposite to the side facing the external reading device (40), that is, When the non-contact IC card (30, 30A, 30B) faces the external reader (40), the surface of the superimposed non-contact IC card communication adjustment plate (1) side is a magnetic sheet. If the surface does not have (20), the electromagnetic wave from the external reader (40) is attenuated by the shield sheet (10) after passing through the non-contact IC card (30, 30A, 30B). In this case also, communication with the external reading device (40) is prevented.

  On the other hand, when the non-contact IC card (30, 30A, 30B) superimposed on the non-contact IC card communication adjustment plate (1) faces the external reader (40), it is superimposed. When the surface on the non-contact IC card communication adjustment plate (1) side is a surface provided with the magnetic sheet (20), electromagnetic waves from the external reader (40) are blocked by the non-contact IC card communication adjustment plate (1). Without reaching the contactless IC card (30, 30A, 30B).

  When the antenna coil (33A, 33B) receives the electromagnetic wave, a current is supplied into the non-contact IC card (30, 30A, 30B) by magnetic induction, and thereby the non-contact IC card (30, 30A, 30B). Operates and emits electromagnetic waves. In this way, the non-contact IC card communication adjustment plate (1) can enable or prevent communication between the non-contact IC card (30, 30A, 30B) and the external reader (40). .

  According to the non-contact IC card communication adjustment plate (1) according to the items [1] and [2], the shield sheet (10) constituting the non-contact IC card communication adjustment plate (1) is a non-contact IC card (30, 30A, 30B) is formed to have almost the same size and shape as the outer dimensions, so that the thickness is increased by the non-contact IC card communication adjustment plate (1) in the overlapped use state. It is not bulkier than the card (30, 30A, 30B).

  In addition, the magnetic sheet (20) is a non-contact IC that overlaps the entire antenna coil (33B) of the non-contact IC card (30B) of the non-contact IC card (30B) that has low responsiveness to electromagnetic waves and that has high responsiveness to electromagnetic waves. The antenna coil (33A) of the card (30A) is formed in a shape in which a predetermined ratio of the entire antenna coil (33A) does not overlap, and only a part of the magnetic sheet (20) is the periphery of the shield sheet (10). It is the size that has led to.

  Thereby, in a use state in which two non-contact IC cards (30, 30A, 30B) are stacked so as to sandwich the non-contact IC card communication adjustment plate (1), the non-contact IC card (30, 30A, 30B) Even if both are non-contact IC cards (30B) with low responsiveness, and both are non-contact IC cards (30A) with high responsiveness, two more non-contact Non-contact IC card (30, 30A, 30B) oriented to face the external reading device (40) even if the IC card (30A, 30B) is low responsive or high responsive For the non-contact IC card (30, 30A, 30B) superimposed on the opposite side of the non-contact IC card communication adjustment plate (1) with respect to the external reader (40) By side reading It is possible to prevent the occurrence of the error to take.

  According to the non-contact IC card communication adjustment plate (1) according to the item [3], the non-contact IC card (30, 30A, 30B) used is an antenna coil (30B) having a low response. The wiring shape type of 33B) is common, and the wiring shape type of the antenna coil (33A) of the non-contact IC card (30A) having high response is common and that of the non-contact IC card (30B) having low response. Since it is different from the wiring shape type of the antenna coil (33B), the shape of the magnetic sheet (20) can be easily determined.

  According to the non-contact IC card communication adjustment plate (1) according to item [4], the wiring shape type of the antenna coil (33B) of the non-contact IC card (30B) having low responsiveness is an anti-collision type, and the responsiveness The magnetic coil (20) extends along the long side (11) of the shield sheet (10), whereas the wiring shape type of the antenna coil (33A) of the non-contact IC card (30A) having a high height is a rectangular type. It has a long side part (21) and a short side part (22) extending from one end of the long side part (21), and the long side part (21) is different from one end from which the short side part (22) extends. Only the other end reaches the short side (12) of the shield sheet (10), and the short side (22) side has only the other end different from the one extending from the long side (21) is the short side of the shield sheet (10). The shape reaches the side (12).

  As a result, the anti-collision type antenna coil (33B) is entirely overlapped with the magnetic sheet (20) in the use state in which the shield sheet (10) is superimposed on the non-contact IC card (30A, 30B). The non-contact IC card (30B) having a low level can be read well. On the other hand, the rectangular antenna coil (33A) has a portion positioned outside the short side (22) of the magnetic sheet (20). Since it does not overlap with (20), it is possible to prevent occurrence of a reading error due to reverse reading even in a non-contact IC card (30A) with high response.

  Since the non-contact IC card storage tool (50) according to the item [5] is provided with the non-contact IC card communication adjustment plate (1) having substantially the same shape as the non-contact IC card (30, 30A, 30B), Put multiple non-contact IC cards (30, 30A, 30B) on the non-contact IC card communication adjustment plate (1) and carry them close to the non-contact IC card (30, 30A, 30B). Can be used.

  According to the non-contact IC card communication adjustment plate of the present invention, the shield sheet is formed to be approximately the same size as the outer dimension of the non-contact IC card, and the shape of the magnetic sheet is the antenna coil of the non-contact IC card with low responsiveness. The non-contact IC card antenna coil of the non-contact IC card, where all of the wiring overlaps, has a shape that does not overlap the predetermined ratio of the entire antenna coil. Even if it is used in a state where it is overlaid on the adjusting plate, the whole is not bulky and the usability is improved. Further, regardless of the combination of the non-contact IC card with low responsiveness and the non-contact IC card with high responsiveness, it is possible to obtain good reading performance free from reading errors due to reverse reading.

It is a top view which shows the non-contact IC card communication adjustment board which concerns on embodiment of this invention. It is the side view which looked at the non-contact IC card communication adjustment board of FIG. 1 from the long side. It is a figure explaining the effect | action of the non-contact IC card communication adjustment board which concerns on embodiment of this invention. Schematic showing the relationship between the antenna coil of the non-contact IC card and the magnetic sheet of the non-contact IC card communication adjustment plate in a use state in which the non-contact IC card having high responsiveness is superimposed on the non-contact IC card communication adjustment plate of FIG. FIG. Schematic showing the relationship between the antenna coil of the non-contact IC card and the magnetic sheet of the non-contact IC card communication adjustment plate in a state of use in which the non-contact IC card with low responsiveness is superimposed on the non-contact IC card communication adjustment plate of FIG. FIG. It is a schematic diagram explaining a mode when using a non-contact IC card over an external reader. It is a top view of the modification from which the shape of a magnetic sheet differs from the non-contact IC card communication adjustment board of FIG. It is a perspective view which shows the non-contact IC card storage tool which stores the non-contact IC card which concerns on embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of the present invention.
FIG. 1 is a plan view showing a non-contact IC card communication adjustment plate according to an embodiment of the present invention, and FIG. 2 is a side view of the non-contact IC card communication adjustment plate of FIG. is there. FIG. 3 is a diagram for explaining the operation of the non-contact IC card communication adjustment plate according to the embodiment of the present invention.

  FIG. 4 shows the non-contact IC card antenna adjustment coil and the non-contact IC card communication adjustment plate magnetic sheet in a state where the non-contact IC card communication adjustment plate shown in FIG. FIG. 5 is a diagram illustrating the positional relationship between the antenna coil of the non-contact IC card and the non-contact IC card in a use state in which the non-contact IC card with low responsiveness is superimposed on the non-contact IC card communication adjustment plate of FIG. It is explanatory drawing which shows the positional relationship with the magnetic sheet of a contact IC card communication adjustment board. FIG. 6 is a schematic diagram for explaining a state in which a non-contact IC card is used over an external reading device.

  As shown in FIG. 4 and FIG. 5, the non-contact IC cards 30A and 30B include a built-in antenna coil 33A and 33B having a rectangular shape (FIG. 4) and a so-called leaf-shaped anti-collision type. There are things (Fig. 5). At present, the antenna coil 33A, 33B having a rectangular wiring shape is used in the non-contact IC card 30A having a strong response to electromagnetic waves, and the anti-collision type has a weak response to the electromagnetic waves. 30B. 4 and 5, the non-contact IC card communication adjustment plate 1 is stacked in a use state in which the non-contact IC card 30A and the non-contact IC card 30B are stacked on the non-contact IC card communication adjustment plate 1 described later. The position of the magnetic sheet 20 is indicated by hidden lines.

  The non-contact IC cards 30A and 30B using the non-contact IC card communication adjusting plate 1 are obtained by embedding an IC chip 32 and antenna coils 33A and 33B connected to the IC chip 32 in a card-type main body 31. Yes, data and programs are read from and written to the external reader 40 wirelessly and non-contactly using electromagnetic waves. The IC chip 32 is disposed in an inner region surrounded by the antenna coils 33A and 33B. The external reading device 40 is a card reader / writer or the like.

  As shown in FIG. 6, when the non-contact IC card 30 is irradiated with induced electromagnetic waves from the external reader 40 side, the antenna coils 33A and 33B receive the induced electromagnetic waves on the non-contact IC card 30 side, and the antenna coils 33A and 33A An induced electromotive force is generated at 33B. The induced electromotive force becomes the driving power for the non-contact IC cards 30A and 30B, and the data stored in the IC chip 32 is read by the external reader 40 by the electromagnetic wave superimposed on the induced electromagnetic wave.

  In order to prevent communication between the external reader 40 and the non-contact IC cards 30A and 30B, the non-contact IC card communication adjustment plate 1 used by being superimposed on the non-contact IC cards 30A and 30B is used. An action of blocking or attenuating electromagnetic waves between the non-contact IC cards 30A and 30B and the external reading device 40 can be exhibited.

  As shown in FIGS. 1 to 5, the non-contact IC card communication adjustment plate 1 is obtained by laminating a magnetic sheet 20 that transmits electromagnetic waves on a shield sheet 10 for blocking or attenuating electromagnetic waves. The non-contact IC card communication adjustment plate 1 is used to adjust the non-contact communication state performed between the external reading device 40 and the non-contact IC card 30 as described above.

  In the non-contact IC card communication adjustment plate 1 in the present embodiment, the shield sheet 10 is formed to have substantially the same dimensions as the outer dimensions of the card-type main body 31 of the non-contact IC cards 30A and 30B. Therefore, the contactless IC card communication adjustment plate 1 is larger than the antenna coils 33A and 33B built in the contactless IC cards 30A and 30B when superimposed on the contactless IC cards 30A and 30B. When the adjustment plate 1 is overlaid on the non-contact IC cards 30A and 30B, the wraparound of electromagnetic waves from the peripheral edge of the non-contact IC card communication adjustment plate 1 is reduced, so that the external reader 40 and the non-contact IC card 30 It is possible to reliably block or attenuate the electromagnetic waves between them.

  The antenna coils 33A and 33B of the non-contact IC card 30 are used for both transmission and reception, but are not limited to this, and a transmission antenna coil and a reception antenna coil may be provided separately. If separate antenna coils are provided for transmission and reception, communication between the non-contact IC card 30 and the external reader 40 can be achieved if either one of the antenna coils can be shielded by the shield sheet 10. Can be prevented.

  The shield sheet 10 is formed using a material that can obtain an electromagnetic shielding effect by having conductivity. Examples of the metal include gold, silver, platinum, copper, aluminum, iron, and nickel. Moreover, as a substance other than a metal, for example, a conductive ceramic can be used. These metals are used in the form of plates.

  The shield sheet 10 may be provided by attaching a metal or the like formed in a mesh shape, a lattice shape, a foil shape, a plate shape or the like to a base (Base) made of a predetermined medium. As the base material, for example, sheet-like plastic, cloth, paper, or the like can be used.

  Further, the shield sheet 10 may be one in which a powdery metal or the like is applied to a base formed in a flat plate shape. Alternatively, a metal powder may be contained in powdered plastic and formed into a layer shape. Furthermore, you may make it comprise the shield sheet | seat 10 by sticking a metal etc. to a layered base | substrate, or sewing it.

As the plastic used for the substrate, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or any other resin material can be used. When these resin materials are used as a base, the shield sheet 10 is formed into a plastic film in which conductive powder is mixed in the base or a plastic film in which a metal thin film is deposited on the surface, A plastic film with a metal foil affixed to its surface, a plastic film with a conductive resin applied to its surface, or a metal wire or metal mesh embedded inside It can be formed into a plastic film.
The shield sheet 10 formed as described above can shield an electromagnetic wave to be transmitted.

  The magnetic sheet 20 laminated on the shield sheet 10 serves to guide the non-contact IC card 30 that communicates with the external reader 40 in a non-contact manner to communicate with the external reader 40. The communication state of the non-contact IC card 30 is suitably adjusted by the combination.

  As shown in FIG. 1, the non-contact IC card communication adjustment plate 1 of the present embodiment has a large piece of magnetic sheet 20 having a unique shape as a magnetic sheet laminated on the shield sheet 10. Yes. Although FIG. 1 shows that the magnetic sheet 20 is laminated only on one side of the shield sheet 10, it may be laminated on both sides.

  In the case where the magnetic sheet 20 is laminated on only one side, the function as the non-contact IC card communication adjusting plate 1 is exhibited only when the single side is used, but in the case where the magnetic sheet 20 is laminated on both sides, the non-contact is provided. Each non-contact IC card 30 can be used by superimposing one non-contact IC card 30 on each side of the IC card communication adjustment plate 1.

  The magnetic sheet 20 is made of a material excellent in magnetic permeability μ. For example, in the frequency of the electromagnetic wave to be used, the relative permeability is preferably 100 or more, more preferably 1000 or more. Specifically, permalloy, ferrite, sendust, directional silicon steel, or the like can be used. Thereby, the magnetic sheet 20 can permeate | transmit electromagnetic waves more densely than an air layer.

  The magnetic sheets 20 and 20 laminated on both surfaces of the shield sheet 10 have the same shape. The magnetic sheet 20 does not overlap with a predetermined ratio of the antenna coil 33A of the non-contact IC card 30A having high responsiveness to electromagnetic waves, and the responsiveness to electromagnetic waves is low. The antenna coil 33B has a shape that overlaps the entire antenna coil 33B, and only a part of the antenna coil 33B reaches the periphery of the shield sheet 10. The length of the part leading to the periphery of the shield sheet 10 is such that it does not read back even with respect to the non-contact IC card 30A having high responsiveness, for example, about 3 mm. The predetermined ratio is, for example, 70 to 80%. In addition, since these numerical values differ with the characteristics of the shield sheet 10 and the magnetic sheet 20, they are merely examples.

  The example illustrated in FIG. 1 is a two-fold rotationally symmetric shape whose overall shape resembles a parallelogram. The magnetic sheet 20 has a long side portion 21 extending along the long side 11 of the shield sheet 10 and a short side portion 22 extending from one end of the long side portion 21.

  Only the other end of the long side portion 21 different from the one end from which the short side portion 22 extends reaches the short side 12 of the shield sheet 10. On the other hand, on the short side portion 22 side, only the other end different from the one end extending from the long side portion 21 reaches the short side 12 of the shield sheet 10. The short side portion 22 side extends from one end extending from the long side portion 21 in a direction approaching a position where the long side portion 21 of the magnetic sheet 20 reaches the short side 12 of the shield sheet 10.

  As shown in FIG. 4, the magnetic sheet 20 has a configuration in which the antenna coil 33 </ b> A is not in contact with the rectangular type antenna coil 33 </ b> A in a use state in which the contactless IC card communication adjustment plate 1 is superimposed on the contactless IC card 30 </ b> A. A part of the magnetic sheet 20 has a shape located outside the short side portion 22. That is, the rectangular antenna coil 33A has a shape that does not overlap a part thereof. As a result, the degree of reaction of the non-contact IC card 30A that is highly responsive to electromagnetic waves can be relaxed to achieve appropriate response performance.

  On the other hand, as shown in FIG. 5, the shape of the magnetic sheet 20 is a leaf-shaped anti-collision type antenna coil in a use state in which the non-contact IC card communication adjustment plate 1 is superimposed on the non-contact IC card 30B. 33B has a shape that overlaps with all of the antenna coil 33B. As a result, the maximum response performance of the non-contact IC card 30B can be exerted on the non-contact IC card 30B having a weak response to electromagnetic waves.

  As described above, the magnetic sheet 20 relaxes the degree of reaction for the non-contact IC card 30A having high responsiveness to make the response performance appropriate and is non-contact for the non-contact IC card 30B having low responsiveness. The response performance of the contact IC card 30B can be exhibited to the limit. Thereby, by using the non-contact IC card communication adjustment plate 1 having the magnetic sheet 20 on both sides, the non-contact IC card communication adjustment plate 1 is used in a state where one non-contact IC card 30 is stacked on each side. In this case, even if the non-contact IC card 30A is a combination of two sheets or the non-contact IC card 30B is a combination of two sheets, the non-contact IC card 30A and the non-contact IC card 30B are one by one. Even in the case of combinations, the occurrence of read errors can be extremely reduced.

Next, the operation of the non-contact IC card communication adjustment plate 1 according to the present embodiment will be described.
FIG. 3 shows a non-contact IC card communication adjustment plate 1 in a use state in which a non-contact IC card 30 is superimposed on a non-contact IC card communication adjustment plate 1 according to this embodiment provided with magnetic sheets 20 on both sides. It is a figure explaining the effect | action of. In the illustrated use state, the non-contact IC cards 30 and 30 are superimposed on both surfaces of the magnetic sheet 20 laminated on the shield sheet 10 of the non-contact IC card communication adjustment plate 1.

  In FIG. 3, arrows indicate electromagnetic waves (signals) for reading information from the non-contact IC cards 30 and 30. In addition, “◯” indicates that communication is normally performed, and “X” indicates that communication is not normally performed.

  In FIG. 3, the influence of the shield sheet 10 on the electromagnetic wave traveling from the left side of the shield sheet 10 toward the non-contact IC card 30 is reduced by the magnetic sheet 20 disposed on the back side of the non-contact IC card 30. Thereby, the non-contact IC card 30 can receive electromagnetic waves from the outside without problems, and can transmit electromagnetic waves from the non-contact IC card 30.

  This is because the non-contact IC card 30 is also placed in the magnetic field because the magnetic field tends to concentrate in the magnetic sheet 20 having a high magnetic permeability. For this reason, the non-contact IC card 30 can receive electromagnetic waves from the outside and can transmit electromagnetic waves. Therefore, when the external reading device 40 transmits an electromagnetic wave in a direction from the left side of the shield sheet 10 toward the non-contact IC card 30, communication can be performed between the non-contact IC card 30 and the external reading device 40.

  Note that the arrows with “x” marks indicate the action of electromagnetic waves on the outside of the short side portion 22 of the magnetic sheet 20, that is, the portion where the magnetic sheets 20 do not overlap. This portion is a portion where the antenna coil 33A does not overlap the magnetic sheet 20 when the stacked non-contact IC card 30 is a non-contact IC card 30A with high responsiveness.

  Since the electromagnetic wave from the left side toward this portion is shielded by the shield sheet 10 of the non-contact IC card communication adjustment plate 1, it does not reach the non-contact IC card 30 superimposed on the right side of the shield sheet 10. For this reason, the non-contact IC card 30 on the right side does not receive electromagnetic waves coming from the opposite side across the non-contact IC card communication adjustment plate 1, and between the external reader 40 and the non-contact IC card 30. Undesirable communication can be prevented.

  The same can be said for the electromagnetic wave traveling from the right side of the shield sheet 10 toward the non-contact IC card 30.

  Generally, electromagnetic waves do not exist inside the conductor (shield sheet 10), and there is a property that electromagnetic waves are not sufficiently present even at the boundary surface between air and the conductor due to boundary conditions. Therefore, for example, as shown in FIG. 3, even if an electromagnetic wave for reading the right non-contact IC card 30 is transmitted from the right side, the electromagnetic wave is generated due to the shield sheet 10 disposed on the back surface of the right non-contact IC card 30. Will be attenuated. As a result, the right non-contact IC card 30 cannot communicate with the external reading device 40 that has transmitted electromagnetic waves to itself.

  Further, the electromagnetic wave traveling from the right side of the shield sheet 10 to the left non-contact IC card 30 is the electromagnetic wave traveling from the left side of the shield sheet 10 to the left non-contact IC card 30. Since it is blocked by the shield sheet 10 in the same manner as if it is blocked by the contact, the left non-contact IC card 30 is not reached. For this reason, electromagnetic waves are not received by the left non-contact IC card 30 and communication between the external reading device 40 on the right side of the shield sheet 10 and the left non-contact IC card 30 is hindered.

  According to the non-contact IC card communication adjustment plate 1 according to the present embodiment, the shield sheet 10 constituting the non-contact IC card communication adjustment plate 1 is formed to have substantially the same size and shape as the outer dimension of the non-contact IC card 30. Therefore, in the use state in which the shield sheet 10 and the non-contact IC card 30 are overlapped, the thickness is increased by the non-contact IC card communication adjustment plate 1, but the whole is bulkier than the non-contact IC card 30. There is no end.

  In addition, the magnetic sheet 20 has a shape that does not overlap the entire antenna coil 33A and part of the antenna coil 33A with respect to the non-contact IC card 30A having high response to electromagnetic waves. In some non-overlapping portions, the antenna coil 33A cannot communicate with the external reading device 40. That is, the degree of reaction of the non-contact IC card 30A with respect to the electromagnetic wave is lowered accordingly.

  Thereby, when the non-contact IC card 30A is superimposed on the back side of the non-contact IC card communication adjustment plate 1 with respect to the external reader 40, communication is performed between the external reader 40 and the non-contact IC card 30A. This can be prevented. That is, reading errors due to reverse reading can be prevented. When the non-contact IC card 30A is used, that is, when the non-contact IC card 30A is directed to face the external reader 40, the non-contact IC card 30A has a strong response to electromagnetic waves. Communication with the contact IC card 30A is performed reliably and normally.

  Furthermore, since the shape of the magnetic sheet 20 overlaps the entire antenna coil 33B of the non-contact IC card 30B having low responsiveness to electromagnetic waves, the non-contact IC card 30B can exhibit its maximum communication performance, When the non-contact IC card 30B is directed to face the external reader 40 in order to use the contact IC card 30B, reliable and normal communication is performed between the external reader 40 and the non-contact IC card 30B. Is called.

  Further, when the non-contact IC card 30B is superimposed on the back side of the non-contact IC card communication adjustment plate 1 with respect to the external reader 40, the non-contact IC card 30B itself has a weak response to electromagnetic waves, so that the entire antenna coil 33B is Even if it overlaps the magnetic sheet 20, the shield sheet 10 of the non-contact IC card communication adjustment plate 1 exists between the external reader 40 and the non-contact IC card 30B. Is done.

Next, the form of the non-contact IC card storage tool 50 that stores and uses the non-contact IC card communication adjustment plate 1 according to the present invention will be described.
FIG. 8 is a perspective view showing the non-contact IC card storage tool 50.
The non-contact IC card storage tool 50 shown is of a card case type. The non-contact IC card storage tool 50 is configured to enable non-contact communication between the non-contact IC card 30 and the external reading device 40 while storing the non-contact IC card 30.

  The non-contact IC card storage device 50 is formed with an IC card storage portion 51 having a substantially rectangular cross section. The non-contact IC card communication adjustment plate 1 according to the above-described embodiment is attached to the storage portion 51 so as to partition the interior into two.

  The non-contact IC card communication adjusting plate 1 is attached with an anti-slip convex shape or a lid at an adhesive, welded, sewn, or taken-out opening so as not to drop out of the IC card storage portion 51.

  When the IC card storage unit 51 stores the non-contact IC card 30, the non-contact IC card 30 and the non-contact IC card communication adjustment plate 1 overlap with each other without being substantially displaced in the vertical direction or the horizontal direction. It is formed in size and shape.

  The non-contact IC card 30 can be stored in any part of the IC card storage part 51 divided into two parts by the non-contact IC card communication adjustment plate 1. When the non-contact IC card communication adjustment plate 1 in which the magnetic sheet 20 is disposed on only one side is mounted in the IC card storage unit 51, the non-contact IC card is placed in any of the two partitions. Since the operation and effect of the non-contact IC card communication adjustment plate 1 varies depending on whether or not 30 is accommodated, the non-contact IC card 30 may be accommodated with appropriate judgment.

  When the non-contact IC card communication adjustment plate 1 in which the magnetic sheet 20 is laminated only on one side is attached to the IC card storage unit 51, the inside of the IC card storage unit 51 is divided into two. Instead, the non-contact IC card communication adjustment plate 1 may be attached along a part of the inner wall of the IC card storage unit 51.

  When the non-contact IC card communication adjustment plate 1 in which the magnetic sheet 20 is laminated on both sides is mounted in the IC card storage unit 51, the non-contact IC card 30 is placed in any of the two divided parts. Even when stored, the non-contact IC card communication adjustment plate 1 has the same function and effect.

  The non-contact IC card storage device 50 configured as described above enables communication between the non-contact IC card 30 and the external reading device 40 while the non-contact IC card 30 is stored in the IC card storage unit 51. You can prevent or make adjustments.

  Although the illustrated non-contact IC card storage device 50 has an IC card storage portion 51 having a substantially rectangular cross section, the card-like base member includes a pocket with little spatial play, The contactless IC card communication adjustment plate 1 may be attached to the base member side in the pocket, and the contactless IC card 30 may be inserted into the pocket.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and the present invention can be changed or added without departing from the scope of the present invention. Included in the invention. For example, in the present embodiment, the magnetic sheet 20 is shaped like a quadrilateral as shown in the figure, but it may be shaped as illustrated in FIG.
Moreover, although the magnetic sheet 20 has been shown to be formed by straight sides, it may have a shape including a curve.

  The idea of the non-contact IC card communication adjusting plate according to the present invention can be widely applied as long as it is used in such a manner that information of the non-contact IC card is read by an external reader.

DESCRIPTION OF SYMBOLS 1 ... Non-contact IC card communication adjustment board 1A ... Non-contact IC card communication adjustment board 10 ... Shield sheet 11 ... Long side 12 ... Short side 20 ... Magnetic sheet 21 ... Long side part 22 ... Short side part 30 ... Non-contact IC card 30A ... Non-contact IC card 30B ... Non-contact IC card 31 ... Main body 32 ... IC chip 33A ... Antenna coil 33B ... Antenna coil 40 ... External reading device 50 ... Non-contact IC card storage device 51 ... IC card storage unit

Claims (5)

The external reading device and the non-contact IC, which have an antenna coil for receiving and transmitting an electromagnetic wave transmitted from the external reading device and are used by being superimposed on a non-contact IC card capable of non-contact communication with the external reading device. In the non-contact IC card communication adjustment plate for adjusting the communication state with the card,
A shield sheet that blocks or attenuates the electromagnetic wave, and a magnetic sheet that is laminated on one or both sides of the shield sheet and transmits the electromagnetic wave,
The shield sheet is formed in substantially the same shape and shape as the outer dimension of the non-contact IC card,
The magnetic sheet overlaps the entire antenna coil with respect to the antenna coil of the non-contact IC card having low response to the electromagnetic wave, whereas the magnetic sheet A non-contact IC card communication adjustment plate, wherein a predetermined ratio of the whole antenna coil has a shape that does not overlap, and only a part reaches the periphery of the shield sheet.   2. The contactless IC card communication adjustment plate according to claim 1, wherein the magnetic sheet has a two-fold rotational symmetry, and only a part of the symmetrical shape reaches the periphery of the shield sheet.   The non-contact IC card has a common wiring shape type of the antenna coil of the non-contact IC card with low responsiveness, and has a common wiring shape type of the antenna coil of the non-contact IC card with high responsiveness and The contactless IC card communication adjustment plate according to claim 1 or 2, wherein the contactless IC card communication adjustment plate is different from a wiring shape type of an antenna coil of the contactless IC card with low responsiveness. The wiring shape type of the antenna coil of the non-contact IC card with low responsiveness is an anti-collision type, and the wiring shape type of the antenna coil of the non-contact IC card with high responsiveness is a rectangular type,
The magnetic sheet has a long side portion extending along the long side of the shield sheet, and a short side portion extending from one end of the long side portion,
In the long side part, only the other end different from the one end from which the short side part extends reaches the short side of the shield sheet,
Only the other end different from the one end extending from the long side portion reaches the short side of the shield sheet on the short side side,
In the state of use in which the shield sheet is superimposed on the non-contact IC card, the anti-collision type antenna coil is entirely overlapped with the magnetic sheet, and the rectangular type antenna coil has a portion that does not overlap the magnetic sheet. The non-contact IC card communication adjusting plate according to claim 3, wherein the non-contact IC card communication adjusting plate is outside the short side portion of the magnetic sheet. In a non-contact IC card storage tool that uses a non-contact IC card that can be communicated with an external reader using electromagnetic waves in a non-contact manner,
The non-contact IC card according to any one of claims 1 to 4, for adjusting a communication state between the external reading device and the non-contact IC card in an IC card storage unit for storing the non-contact IC card. With a communication adjustment plate,
The non-contact IC card storage device, wherein the non-contact IC card communication adjusting plate is attached so as to overlap the non-contact IC card stored in the IC card storage unit.

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