JP5942658B2 - Information record booklet - Google Patents

Description

  The present invention relates to a booklet having a function capable of transmitting information in a wireless manner, and more particularly, to a position in a booklet of an IC module and antenna wiring and a laying form thereof.

  In recent years, as an information storage medium, an IC card incorporating an IC storing various information is known, and similarly, an information management system using this IC card is provided. For example, in Japanese Patent Laid-Open No. 10-157352, personal information is stored in an IC card, and personal information is managed by collating fingerprint information registered and stored in advance with input fingerprint information read from the IC card. An IC card and a personal information management system using the same are disclosed.

  The above management system stores various personal information in the IC, reads the stored information and collates it with the holder, thereby confirming that the card owner and the carrier are the same person. The IC card used in these management systems is a contact type which mainly reads and rewrites written information by inserting the IC card into an IC card reader / writer (hereinafter referred to as IC card R / W). It consists of an IC card.

  On the other hand, in recent years, a wireless IC card or a non-contact IC card in which a coiled antenna for transmission / reception and an IC connected to the coiled antenna are built in the card has been provided, and it is used for various systems because of its convenience. It has been. In particular, electronic passports (hereinafter simply referred to as passports), commuting schedules, or booklets with security can be cited as examples in which the wireless IC function is effectively utilized.

  In these wireless IC cards, the coiled antenna is provided in a predetermined shape within the surface of the card and is fixed so as not to be deformed. Therefore, if the intensity of the alternating magnetic field applied to the coiled antenna is constant, it is proportional to the effective area of the coiled antenna (the inner area of the coiled antenna projected on the plane orthogonal to the alternating magnetic field) and the number of turns of the coil. A constant current is induced and the IC circuit can be driven.

Therefore, when the IC card is exposed to an alternating magnetic field, a current is induced in the coil antenna for transmission / reception, and the IC connected to the coil can be driven without inserting the card into the IC card R / W. In addition, information can be read and written without contact.
Therefore, a skimming act of stealing information stored in the IC is possible and there is a risk of misuse. In other words, in the case of a wireless IC card, the IC circuit can be driven as long as a specific alternating magnetic field is applied, so that personal information can be read regardless of the intention of the carrier, and privacy may be infringed. There is a possibility that information stored in the IC card is intentionally stolen or destroyed by a third party.

  Therefore, for IC-embedded booklets, as a technique to prevent skimming and electrical damage, coiled antennas are placed almost symmetrically about the fold part of the passport, and when the booklet is opened, A technology is disclosed that has an effective antenna area that enables transmission / reception of the image data, and when the booklet is folded, the effective area becomes zero and communication becomes impossible (Patent Document 1). However, in this configuration, since the coiled antenna straddles the folded portion of the booklet, there is a problem that the antenna material in the folded portion is fatigued and disconnected when it is repeatedly opened and closed.

As another skimming prevention technology, there are a wireless IC booklet and a passport that shield an electromagnetic wave by binding an IC module (inlet) portion including an IC chip and an antenna with an anti-skimming sheet containing an amorphous metal (patent) Reference 2). In this configuration, it is necessary to bend the booklet portion having the anti-skimming sheet at the time of immigration, so that the page including the IC module portion is spread, and there is a problem that handling becomes complicated.
There is an example in which an anti-skimming sheet is arranged only on one side of an IC module as a similar technique, but this also has the same problem.

JP 2001-92934 A JP 2006-99562 A

  The present invention has been made in view of the above circumstances, and in a booklet having a wireless communication function, the wireless function is not impaired even if the booklet is opened and closed many times, and the information recorded on the IC chip is not good. It is to provide an information storage booklet that is not easily read or destroyed.

In order to achieve the above object, an invention according to claim 1 is directed to an IC module including a first antenna connected to a first coupling coil, an IC chip and a coil connected to the first antenna, and a second coupling coil. The second antenna is an information recording booklet separately disposed on the front cover, the main paper, or the back cover in this order,
The first antenna and the second antenna are laid so that when the booklet is opened, they are wound in the same direction on the left and right, and when they are closed, they do not overlap with each other when viewed from above, and are wound in reverse directions.
The first coupling coil, the IC module coil, and the second coupling coil are information recording booklets that are laid so as to be electromagnetically coupled when the booklet is closed.

  According to a second aspect of the present invention, the first antenna connected to the first coupling coil is connected to the front cover, the IC module including the IC chip and the coil connected to the first cover coil is connected to the paper, and the second antenna is connected to the second coupling coil. The information recording booklet according to claim 1, wherein two antennas are respectively disposed on the back cover.

  The invention according to claim 3 is characterized in that the first antenna and the second antenna overlap each other by 70% or more in terms of the area surrounded by the antenna when the booklet is closed. The information recording booklet described in 2 is used.

  The invention according to claim 4 is characterized in that the first antenna and the second antenna overlap each other by 90% or more in terms of the area surrounded by the antenna when the booklet is closed. The information recording booklet described in 2 is used.

  The information recording booklet according to the present invention is composed of two antenna patterns and coupling coil patterns made of metal, and three sets of wiring patterns, one set of IC chip and a coil pattern connected to this, which are divided into separate pages. It is arranged. Coil-to-coil uses electromagnetic coupling through space rather than wiring-to-wiring, so the wiring pattern is laid only on the booklet (page) on one side of the open booklet (page). It is not laid across. Therefore, even if the booklet is opened and closed, the wiring pattern does not bend, and the wiring does not break due to fatigue.

  In the information recording booklet according to the present invention, an electromagnetic wave shielding layer for protecting the IC module from electromagnetic waves is not disposed on either side of the IC module. For this reason, when reading or writing information from the IC, it is not necessary to turn a certain page of the IC module so that the page is spread, and handling is extremely easy. Further, the communication signal is not attenuated by the shielding layer, and stable communication is possible regardless of how it is placed.

  Further, the information recording booklet according to the present invention is laid so that the first antenna and the second antenna are in the same winding direction with the booklet opened, and in the bound state, the first antenna is When left-handed, the second antenna turns right-handed, and the electromagnetic waves radiated from the reading device and incident on the antenna work effectively, but are sandwiched between the first and second coupling coils connected to these antennas. The electromagnetic field cancels out on the coil belonging to the IC module, and energy is not transmitted to the IC. Therefore, it is impossible to perform skimming such as reading or falsifying recorded information, and it is possible to provide an information recording booklet with higher security. Further, the IC or the like is not damaged by the electromagnetic waves.

  Also, communication with a reading device using electromagnetic coupling becomes possible simply by opening the front cover or the back cover and opening the cover. There is an effect that it is possible to provide an easy-to-use information recording booklet because it is possible to provide an easy-to-use information-recording booklet, which eliminates the trouble of separating the inner booklet (page) with the IC module from the booklet with the antenna.

It is a perspective view explaining the structure of information recording booklets (typically a passport), such as a front cover and a back cover. It is a figure of the cross-sectional view explaining the structure of the front or back cover by which the antenna pattern (including IC) was laid, or this paper. It is a figure of the top view explaining the laying state of the antenna and coupling coil at the time of making the information recording booklet which becomes this invention into a double-spread state. It is a top view figure explaining an example of the laying state of the IC chip and coil of an IC module (inlet). It is a figure which illustrates typically the mode of the magnetic field component on the coil which constitutes an IC module. (A) When the booklet is closed (no current), (b) When the front cover of the booklet is opened (with current). The horizontal arrow → indicates the presence of an induced current.

  In the following, the present invention will be described with reference to the drawings. The first half is a configuration surface and the second half is an operation surface. A perspective view of an information recording booklet 1 according to the present invention is shown in FIG. It consists of a front cover (front cover) 2, a back cover (back cover) 3, and main paper (inner paper) 4, 4 ', 6 on which characters and images sandwiched between these are printed, and a binding portion 7. Usually folded. In FIG. 1, the wiring patterns 11 and 12 at the spread portions of the front cover 2 and the back cover 3 indicate antennas, and an IC module 15 is laid on the center page 6 in the center of this paper.

  Such an information recording booklet 1 is formed by binding a plurality of paper sheets (inner papers) 4 having the same shape as a rectangular booklet sheet 5 (see FIG. 3) to be a front cover 2 and a back cover 3. . The stitch 8 of the binding portion 7 is a center line of the long side parallel to the short side of the booklet sheet 2 and coincides with a fold line defining a fold. The stitches 8 are predetermined places, and can be folded into two by being stapled in parallel to the stitches. The IC module 15 composed of an IC chip and a coupling coil is laid as a thin part at an appropriate position as a part of this paper, and the same applies to communication antennas.

  Unlike book paper (medium paper) 4, which is usually paper, the booklet sheet 2 itself functions as a support, and an IC chip or an antenna coil for transmission / reception is mounted and laid inside or on the surface. The booklet sheet 2 is a form in which a cover sheet 9 is laminated on a base sheet 10 on which antennas 11 and 12 are formed, as shown in FIG. Are stacked into a booklet. The base sheet 10 is made of an insulating resin such as PET, polyester or polyimide having a thickness of about 0.1 mm, or a thick paper base, and characters and figures can be printed on the surfaces of the cover sheet 9 and the base sheet 10. It is. The cover sheet 9 may be a paper or an insulating resin.

  A conventional booklet having a wireless communication function is composed of an IC chip for recording information and an antenna coil connected to the IC chip, and these are laid by wiring on a paper base material or a plastic sheet, and are generally omitted. On the same plane. On the other hand, the information recording booklet according to the present invention is arranged in a separate paper piece (front cover, back cover, or main paper (medium paper)) in which the communication antenna coil and the IC chip constitute the booklet. It is that. As shown in FIG. 1, when the antennas 11 and 12 are arranged in the spread portion of the front and back covers, the IC chip is arranged on any page in this paper.

  In the present invention, the IC book and the communication antenna that should be connected to the IC chip do not exist in the same booklet sheet, so these are not directly connected by wiring. Therefore, energy received by the antenna coil cannot be transmitted by wiring. Therefore, energy transfer between the IC chip and the antenna on another page is indirectly performed through a space using a coupling coil different from the antenna. Is called. The coupling coil is smaller in area than the antenna and is formed in the same piece of paper and connected directly. All the wirings are separately laid on one side or both sides of the booklet sheet, and are not folded because they do not straddle the binding portion.

  First, the laying form of the communication antenna on the booklet sheet 5 in this method is shown in FIG. A first antenna 11 and a first coupling coil 13 are laid on the left side of the binding center line 8, and a second antenna 12 and a second coupling coil 14 are laid on the right side. The antenna is substantially symmetrical with respect to the binding center line 8. In top view, if the left is right-handed, the right is right-handed. When the booklet is closed, the coil winding direction is reversed.

  FIG. 4 shows an example of the arrangement of the (coupled) coil 16 and the IC chip 18 of the IC module 15. The size of the coil 16 is substantially the same as the size of the coupling coils 13 and 14.

  In order to manufacture the booklet sheets 5 and 15 including the antenna wirings 11, 12 and 16, the IC connection terminals 17, etc., insulation such as PET-G in which a conductive metal foil of copper or aluminum is previously formed on the surface. It is preferable that the base sheet 10 is etched or printed on the base sheet 10 using a conductive paste. From the viewpoint of resistance, copper foil is more preferable, and either rolled copper foil or rolled copper foil can be used. An anisotropic conductive film or solder connection can be used to connect the IC chip 18 to the connection terminal 17. After the formation, it is preferable to protect by covering with a cover sheet 9 made of paper or resin.

  As can be seen from FIGS. 3 and 4, a coil that can be coupled to the coupling coil 13 on the antenna side is also provided as the coil 16 on the IC module side. When the magnetic field component of the radio wave penetrates through the loop of the antenna coil 11, a current also flows through the coupling coil 13, and a magnetic field appears in the loop of the coupling coil 13. If this magnetic field penetrates through the loop of another coil, here the coil 16 connected to the IC chip, a current is also induced in this coil 16. Therefore, even if they are spatially separated, if two coils are arranged so that the loop surfaces overlap, energy can be extracted as a current. The induced current can be used to drive an IC chip or a semiconductor element.

  In principle, if a book (inner paper) on page 1 (only one side of FIG. 3) on which an antenna is mounted and a paper (inner paper) on which an IC module is mounted are arranged in a booklet, information recording is possible. It can be a booklet. It is also preferable that the antenna is laid between the cover and the facing portion, that is, either the front cover or the back cover, and the IC module is laid on either the main paper (medium paper). However, it is necessary to dispose each coupling coil in the booklet so that they overlap in a top view.

However, a skimming action or damage to the IC chip cannot be prevented simply by spatially separating the antenna function and the IC module and electromagnetically coupling them.
In the present invention, another antenna with a coupling coil is prepared and the binding shown in FIG. 3 is performed so that a sandwich configuration of (antenna 1 + coupling coil 1) / (IC chip + coil) / (antenna 2 + coupling coil 2) is obtained. A page having an IC module was disposed on the center line 8.

  The arrangement of the first antenna and the second antenna sandwiching the IC module has been described above, but the problem is that the coil 16 on the IC module side sandwiched between the first coupling coil 13 and the second coupling coil 14. It is. These coils are laid so as to be capable of electromagnetic coupling, and the winding direction of the first coupling coil 13 and the second coupling coil 15 is the same with the booklet closed, with the coil surface on the IC module side as the symmetry plane. It needs to be arranged in the direction.

  The magnetic field of radio waves radiated from the reading / writing device penetrates the first antenna and the second antenna when the booklet is closed. Since the winding direction of the antenna coil is reversed, the direction of the current flowing through the antenna is also reversed. If the direction of the current flowing through the first coupling coil 13 and the second coupling coil 14 (19 in FIG. 5) is reversed, the direction of the magnetic field H induced by this current (FIG. 5). 20) is also in the opposite direction (FIG. 5A). Then, the magnetic field cancels out between the two coupling coils 13 and 14, and no current is induced in the coil 16 of the IC module 6 existing there. Therefore, since the IC chip 18 is not operated, information recorded on the IC is not maliciously skimmed or destroyed.

  The antenna and IC module can be all arranged on the main paper (inside paper), but the first antenna is placed between the front cover and the facing part, and the first antenna is placed between the back cover and the facing part. It is desirable to arrange the IC module on the center page at the center of this paper (medium paper). The IC module and its coil are not necessarily located in the center page, but may be laid on a book paper (medium paper) that is slightly deviated due to the structure of the booklet, but current is not induced unless it is greatly deviated from the center.

  When the front cover or the back cover is opened as shown in FIG. 5B, the coil 16 of the IC module 6 is coupled only to one coupling coil 14 and the magnetic field component H is not canceled, so that normal communication is possible. Become. Since this is the only operation, handling is easy.

  When the booklet is closed, it is desirable that the first antenna, the second antenna, and all the coupling coils overlap completely in a top view, but it may be difficult due to the structure of the booklet. In this case, if the overlapping degree is 70 to 80% in area, the magnetic field component acts on the IC module coil in a direction to cancel each other and communication becomes impossible, but it is preferable that 90% or more overlap.

  Finally, a performance comparison between a known information recording booklet and the information recording booklet according to the present invention will be described. Items for which performance is compared are skimming prevention function, ease of handling, and difficulty in disconnecting antennas and the like. Regarding the skimming prevention function, it was verified whether a plurality of reading / writing devices can communicate with the booklet. For ease of handling, we verified whether communication was possible before checking the page on which personal information was printed.

  As for the difficulty of disconnecting the antenna, first, a rolled copper foil or a field copper foil having a thickness of 30 μm is pasted on a PET-G film having a thickness of 40 μm via an adhesive layer having a thickness of 3 μm, and the length is measured by a photolithography method. A copper wiring pattern of 150 mm and a line width of 0.5 to 3 mm was formed. Next, a bending test was performed so that the opening angle was 135 °, and the number of times until disconnection was examined. This assumes a state in which metal wiring is present in the binding portion of the booklet.

Judgment criteria are
With respect to the skimming prevention function, ○: communication is not possible, Δ: reading is possible depending on conditions such as proximity, x: reading is possible.
Regarding ease of handling, ○: presumed that communication is possible at the time of normal identification of the examiner, Δ: slightly complicated handling, ×: complicated handling at the time of communication confirmation.
Regarding the antenna disconnection, ◯: no disconnection, x: disconnection.

The results are shown in Table 1. The superiority of the information recording booklet according to the present invention is clear.
Note that the normal configuration in the table is a specific page of this paper in which an antenna having a communication function and an IC chip are laid.
As for the disconnection test, when the film thickness is constant, it strongly depends on the line width, and the results differ between the rolled copper foil (line width is 0.5 to 1.5 mm) and the electric field copper foil (1.5 to 3.0 mm). However, in the case of a rolled copper foil, it was about 500 to 1000 times, and in the case of an electrolytic copper foil, the wire was broken in 1500 to 2000 times.

1. Information booklet 2, front cover 3, back cover 4, 4 ', main paper (medium paper)
5, booklet sheet 6, center page (IC module built-in)
7. Binding part (back cover)
8, binding center line 9, cover sheet 10, base sheet 11, first antenna 12, second antenna 13, first coupling coil 14, second coupling coil 15, IC module (inlet)
16, Coil (IC module side)
17, connection electrode 18, IC chip 19, direction 20 of current flowing through first coupling coil 13 and second coupling coil 14, direction of magnetic field H induced by current flowing through coils 13 and 14

Claims (4)

An IC module including a first antenna connected to the first coupling coil, an IC chip and a coil connected to the IC chip, and a second antenna connected to the second coupling coil in this order, the front cover, the main paper, and the back cover. Each of which is an information recording booklet arranged separately,
The first antenna and the second antenna are laid so that when the booklet is opened, they are wound in the same direction on the left and right, and when they are closed, they do not overlap with each other when viewed from above, and are wound in reverse directions.
An information recording booklet, wherein the first coupling coil, the IC module coil, and the second coupling coil are laid so as to be electromagnetically coupled when the booklet is closed.   The first antenna connected to the first coupling coil is arranged on the front cover, the IC module including the IC chip and the coil connected thereto is arranged on this paper, and the second antenna connected to the second coupling coil is arranged on the back cover. The information recording booklet according to claim 1, wherein the information recording booklet is provided.   The information recording booklet according to claim 1, wherein the first antenna and the second antenna overlap each other by 70% or more in terms of an area surrounded by the antenna when the booklet is closed.   The information recording booklet according to claim 1 or 2, wherein the first antenna and the second antenna overlap each other by 90% or more in terms of an area surrounded by the antenna when the booklet is closed.

Images