JP2002259932A - Ic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve high recording precision and high reading precision by improving dynamic balance. SOLUTION: This IC card 1 is provided with an integrated circuit IC 5 for electrically storing recording data in a writable state, an input and output part 6 for inputting and outputting the recording data, an attachment hole 3 capable of attaching the IC card 1 onto a rotor for rotating the IC card 1 at a central position thereof, and an optical recording part 2 capable of optically writing and reading the recording data on an outer peripheral area of the attachment hole 3. The integrated circuit IC 5 and the input and output part 6 are provided between the attachment hole 3 and the optical recording part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card including an integrated circuit (IC) capable of electrically storing various types of recording data, and an input / output unit for inputting / outputting the recording data. The present invention relates to an improvement in an IC card having an optical recording unit capable of compensating for a shortage of the recording capacity of these integrated circuits (IC).

[0002]

2. Description of the Related Art Conventionally, magnetic cards have been mainly used as recording media such as prepaid cards, credit cards, and membership cards. However, these magnetic cards are easily forged and have low security. Instead of these magnetic cards, a built-in integrated circuit (IC) capable of electrically storing the recording data makes it difficult to rewrite the recording data and limits the reading of the recording data. IC cards with higher security have been put to practical use.

However, when recording data is electrically stored by these integrated circuits (ICs), it is very difficult and costly to mount a battery or the like on a card. Large-capacity non-volatile memories are very expensive, and the size of the IC chip becomes large. Therefore, the storage capacity cannot be increased remarkably. In order to improve the convenience of users, there is a demand to record various types of useful information on these IC cards at low cost, and to allow the users to use the recorded information at home or the like. In this case, the cost per unit recording byte is low, and a drive device capable of reproducing the medium is mounted on many personal computers and the like. Due to its flexibility in the viewpoints of being,
As shown in FIG. 6, in addition to a non-contact IC module 2 'incorporating an integrated circuit 5' and an antenna coil as the input / output unit, a mounting hole 3 'similar to a mounting hole of a compact disk (CD) is provided. C is a compact disk (CD) that is provided at the center of the card and can be additionally recorded on the outer periphery.
DR or CD-RW which is a rewritable and recordable CD
Also, an IC card 1 'having an optical recording section 4' formed with an optical recording material used for a DVD-RAM or the like has been proposed.

[0004]

However, in the IC card 1 'having the optical recording section 4', when recording and reading on the optical recording section 4 ', the mounting hole 3' is rotated. It is necessary to rotate the IC card 1 ′ by mounting it on a child, but if the non-contact IC module 2 ′ is provided, the dynamic balance of the IC card 1 ′ is poor, and uneven rotation occurs at high speed rotation. Easier,
There has been a problem that recording accuracy and reading accuracy are reduced.

Accordingly, the present invention has been made in view of the above-mentioned problems, and has as its object to provide an IC card capable of obtaining high recording accuracy and reading accuracy by improving dynamic balance. .

[0006]

In order to solve the above-mentioned problems, an IC card according to the present invention comprises: an integrated circuit (IC) for storing recording data in an electrically rewritable manner; An input / output unit for performing the operation, a mounting hole at the center of the input / output unit for mounting the IC card on a rotor for rotating the IC card, and a light capable of optically writing and reading recorded data in an outer peripheral area of the mounting hole And a recording unit, wherein the integrated circuit (IC) and the input / output unit are provided between the mounting hole and the optical recording unit. According to this feature, by providing the integrated circuit (IC) and the input / output unit between the mounting hole and the optical recording unit, the integrated circuit (IC) and the input / output unit are rotated from the center of rotation. The distance of the IC card becomes smaller, and the dynamic balance of the entire IC card improves.
High recording accuracy and reading accuracy can be obtained.

[0007] The IC card of the present invention preferably has the input / output section concentrically with the mounting hole. With this configuration, by making the input / output portion concentric with the mounting hole, uneven distribution of weight can be reduced and dynamic balance can be further improved.

An IC card according to the present invention comprises an integrated circuit (IC) for storing recording data so as to be electrically rewritable, an input / output unit for inputting / outputting the recording data, and an I / O unit at the center thereof.
An IC card comprising: a mounting hole in which the IC card can be mounted on a rotator for rotating the C card; and an optical recording unit capable of optically writing and reading recording data in an outer peripheral area of the mounting hole. And an eccentricity compensator for compensating for eccentricity when the rotator rotates the IC card, the integrated circuit (IC) and the input / output unit being provided on an outer peripheral portion of the optical recording unit. I have. According to this feature, by providing the eccentricity compensation unit, the dynamic balance of the entire IC card is improved,
High recording accuracy and reading accuracy can be obtained.

In the IC card according to the present invention, the eccentricity compensating portion may be formed by using a thick portion made of a thick resin of the card.
It is preferable to form it by providing it at an appropriate position on the card. With this configuration, the eccentricity compensator can be easily formed on the card.

[0010] In the IC card according to the present invention, it is preferable that the eccentricity compensator is formed by providing a notch of an appropriate size at an appropriate position on the outer periphery of the card. With this configuration, the eccentricity compensator can be easily formed on the card.

In the IC card according to the present invention, the eccentricity compensator is located at a position symmetrical with respect to the mounting hole of the integrated circuit (IC) so as to be symmetric with the integrated circuit (IC).
It is preferably formed by providing C). With this configuration, the IC card is symmetrical with respect to the mounting hole, so that the weight distribution is also symmetrical and the dynamic balance is stabilized. Even if a failure occurs in one integrated circuit (IC), an IC card can be used by using the other integrated circuit (IC).

[0012] In the IC card according to the present invention, the input / output unit may include:
It is preferable that recording data can be input and output without contact. With this configuration, the input and output of the recording data can be performed in a non-contact manner, so that the IC card wear can be significantly reduced.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows an IC card according to a first embodiment. The IC card 1 according to the first embodiment has a rectangular shape having a length of about 86 mm and a width of about 58 mm. When the IC card 1 is inserted into a CD-RW drive, A mounting hole 3 that can be mounted on the rotor is formed, and an optical recording unit 2 that can optically record and read data is provided on an outer peripheral portion of the mounting hole 3. The disc-shaped CD-RW disc is cut into a card shape.

The thickness of the IC card 1 according to the present embodiment is 0.76 mm, which is the standard thickness of a magnetic card, whereas the thickness of an ordinary IC card is 0.76 mm, which is the standard document for CD-RW media. According to the book, it is set to 1.2 mm which is the same as that of the CD-RW media.

The optical recording section 2 of this embodiment has a phase-change recording material layer, which is often used for a rewritable CD-RW medium, formed by irradiating a laser beam from the CD-RW drive. When the recording material layer generates heat in a small area, the crystal layer reversibly changes from amorphous to crystalline, thereby controlling the reflection or non-reflection of laser light to record data. In addition, erasing is possible.

Various materials have been studied as the phase-change recording material layer on which rewritable recording is possible. An Ag-In-Sb-Te thin film, which is a quaternary phase-change recording material, is exemplified. The -In-Sb-Te thin film is preferable because it has a large recording margin and the like, but these recording material layers may be appropriately selected.

In this embodiment, the optical recording section 2 is rewritable and recordable. However, the present invention is not limited to this, and these optical recording sections can be used for write-once recording on a CD-R disc or the like. The recording layer may be a single-writable recording layer composed of an organic dye layer, a silver salt layer, and the like used for the layer. The recording layer of the optical recording section 2 is at least capable of recording new data. Can be used.

As shown in a sectional view, a base which rotates together with the rotor of the CD-RW drive when the rotor of the CD-RW drive is fitted into the mounting hole 3, as shown in a sectional view. Thin portion 7 for keeping the card stably in close contact with
Is formed, and a thick portion 4 is formed between the thin portion 7 and the optical recording portion 2. Input / output of recording data is performed in the thick portion 4 in a non-contact manner. An antenna coil 6 as an input / output unit for performing the operation and an integrated circuit (IC) 5 for storing recording data in an electrically rewritable manner are provided concentrically with the mounting hole 3.

As described above, by disposing the integrated circuit (IC) 5 and the antenna coil 6 in the thick portion 4 on the outer periphery of the thin portion 7 while avoiding the thin portion 7, By incorporating the (IC) 5 and the antenna coil 6, it is preferable to prevent the mechanical strength of the card from being reduced. However, the present invention is not limited to this. The antenna coil may be formed on the surface of 7 by a conductive paste, plating, or the like.

As the integrated circuit (IC) 5, an integrated circuit (IC) 5 built in a non-contact IC module or the like conventionally used for a non-contact IC card can be used. In the (IC) 5, data multiplied by the non-volatile memory and the high-frequency electric wave received by the antenna coil 6 are demodulated, and transmission data such as data recorded in the non-volatile memory is multiplied by the high-frequency electric wave Modulation and demodulation circuits, a power circuit that generates power using the received high-frequency radio waves, and a control circuit that performs various controls such as writing, reading, erasing, and data transmission / reception of the nonvolatile memory. , And the antenna coil 6.

The antenna coil 6 used in the present embodiment
As described above, since the antenna coil is arranged concentrically with the mounting hole 3 and the high-frequency radio wave used for non-contact communication uses the 2.45 GHz band which is the ISM band, It has an appropriate length (number of turns) that can efficiently receive radio waves.

The antenna coil 6 and the integrated circuit (IC) 5 are insert-molded in advance into a ring-shaped module using a polycarbonate resin, which is a transparent resin for forming a card, and the ring-shaped module is used for a card molding machine. It is inserted into a mold and is integrally formed with the card of this embodiment. The use of the antenna coil 6 and the integrated circuit (IC) 5 in the form of a ring-shaped module in advance as described above facilitates handling of the module, and also causes a card formed by inserts of these modules to suffer from distortion and warpage. The present invention is not limited to this, although it is preferable because deformation can be reduced.

The formed IC card includes the Ag
An IC card 1 is obtained by forming an optical recording layer thin film such as a -In-Sb-Te thin film and then coating the surface with a transparent resin.

(Embodiment 2) FIG. 2 shows an IC card 20 according to the second embodiment. The IC card 20 according to the second embodiment has a mounting hole 23 at the center thereof as in the first embodiment, and can be optically written and rewritten similarly to the optical recording unit 2 according to the first embodiment. An optical recording section 24 on which a suitable optical recording material layer is formed is provided on the outer periphery of the mounting hole 23. The optical recording section 24 of the second embodiment has an outermost diameter equal to the short side length of the card. The recording capacity is smaller than that of the optical recording section 2 of the IC card of the first embodiment.

An antenna coil 22 is provided on the outer periphery of the optical recording section 24 along the outer periphery of the card, and has the same function as the integrated circuit (IC) 5 used in the first embodiment. A circuit (IC) 21 is provided, and the weight of the integrated circuit (IC) 21 is set at a diagonal position across the mounting hole 23 of the integrated circuit (IC) 21 when the IC card is rotated. A thick portion 25 having a thick card is formed so as to be balanced, and serves as a balance weight as an eccentricity compensating portion for compensating for a decrease in dynamic balance due to the integrated circuit (IC) 21. I have.

The method of manufacturing the IC card 20 according to the second embodiment is based on the premise that the integrated circuit (IC) 21 is mounted on a film substrate on which the antenna coil 22 is formed in advance, and the optical recording section 24 is formed. The mounting hole 23 can be obtained by sandwiching and integrating the two pieces of polycarbonate plate, that is, the polycarbonate plate that has been formed, and the polycarbonate plate on which the optical recording section 24 is not formed.

(Embodiment 3) FIG. 3 shows an IC card 20 'of Embodiment 3. The IC card 20 'of the third embodiment is
In the IC card 20 according to the second embodiment, the eccentricity compensating portion is formed by the thick portion 25 formed diagonally to the integrated circuit (IC) 21. A notch 26 is provided at a position where a straight line connecting the integrated circuit (IC) 21 and the center of rotation of the card intersects the outer periphery of the card so as to offset the increase in the weight of the IC) 21 to reduce the dynamic balance. Compensated.

In this embodiment, as described above, the notch 26 is provided at a position where a straight line connecting the integrated circuit (IC) 21 and the center of rotation of the card intersects the outer periphery of the card. Is preferable because it is possible to efficiently compensate for the dynamic balance with a smaller notch. However, the present invention is not limited to this. Circuit (I
C) An integrated circuit (I) that can offset the weight increase of 21
C) It may be formed in an appropriate shape at the outer peripheral position of the card near 21.

Fourth Embodiment FIG. 4 shows an IC card 30 according to a fourth embodiment. The IC card 30 according to the fourth embodiment has a configuration similar to that of the above-described conventional IC card 1 ′, has a mounting hole 33 at the center thereof, and
As in the case of the optical recording section 2, the optical recording section 34 on which the optically writable and rewritable optical recording material layer is formed,
The optical recording unit 34 of the fourth embodiment, which is provided on the outer periphery of the mounting hole 33, has the outermost diameter of the card as in the case of the IC cards 20 and 20 'of the second and third embodiments. It is formed so as to have a shorter side length or less.

At both ends of the IC card 30 in the long side direction, an antenna coil (not shown) and an integrated circuit (IC) having the same function as the integrated circuit (IC) 5 used in the first embodiment are provided. ) 31 are provided symmetrically with respect to the mounting hole 33 as shown in FIG. 4, and these same non-contact IC modules 32 become the rotation center of the IC card. By providing the mounting hole 33 symmetrically with respect to the center thereof, the weight balance is balanced, the dynamic balance is improved, and even if a failure occurs in one of the non-contact IC modules 32, the other IC module 32 uses the IC card. Can be used continuously.

As described above, in the fourth embodiment, two ICs
Although the module 32 is provided symmetrically with the mounting hole 33 interposed therebetween, the present invention is not limited to this.
As in the method of the second embodiment, the thickness of the other IC module 32 is increased to improve the dynamic balance. Alternatively, as in the method of the third embodiment, the IC module 32 is integrated into one IC module. An appropriate notch or thin portion may be provided at the end on the side where the module 32 is arranged to improve the dynamic balance.

Each element in each of the above embodiments corresponds to the present invention as follows. Claim 1 of the present invention
Are an integrated circuit (IC) 5 for storing recording data in an electrically rewritable manner, an input / output unit 6 for inputting / outputting the recording data, and a rotator for rotating the IC card 1 at a central position thereof. An IC card comprising: a mounting hole in which the IC card can be mounted; and an optical recording unit capable of optically writing and reading recording data in an outer peripheral area of the mounting hole. An (IC) 5 and the input / output unit (antenna coil) 6 are provided between the mounting hole 3 and the optical recording unit 2.

According to a second aspect of the present invention, the input / output section (antenna coil) 6 is concentric with the mounting hole 3.

According to a third aspect of the present invention, there is provided an integrated circuit (IC) 21 for storing recording data in an electrically rewritable manner, and an input / output unit (antenna coil) for inputting / outputting the recording data.
22, a mounting hole 23 in which the IC cards 20 and 20 'can be mounted on a rotator for rotating the IC cards 20 and 20' at the center thereof, and optically recorded data in an outer peripheral area of the mounting hole 23. And an optical recording unit 24 capable of writing and reading the data, wherein the integrated circuit (IC) 21 and the input / output unit (antenna coil) 22 are connected to the outer periphery of the optical recording unit 24. Eccentricity compensating portion (thick portion 2) for compensating for eccentricity when the IC cards 20, 20 'are rotated by the rotor.
5, a notch 26).

According to a fourth aspect of the present invention, the eccentricity compensator includes:
The thick portion 25 where the resin constituting the card is thickened
It is formed by providing it at an appropriate position on the card.

According to a fifth aspect of the present invention, the eccentricity compensator is
It is formed by providing a notch 26 of an appropriate size at an appropriate position on the outer periphery of the card.

According to a sixth aspect of the present invention, the eccentricity compensator includes:
The integrated circuit (IC) 32 is formed by providing the same integrated circuit (IC) 32 as the integrated circuit (IC) 32 at a position symmetrical with respect to the mounting hole.

According to a seventh aspect of the present invention, the input / output units 5, 2
No. 2 is capable of inputting and outputting recording data without contact.

Although the present embodiment has been described with reference to the drawings, the present invention is not limited to the above embodiment.
It goes without saying that changes and additions without departing from the gist of the present invention are included in the present invention.

For example, in each of the above embodiments, the integrated circuit (I
C) the input / output section is formed by the antenna coils 5 and 22;
Although it is possible to perform power transmission and data transmission and reception by non-contact, the present invention is not limited to this,
The communication may be performed by exposing these input / output units to the card surface by exposing the antenna coil to an appropriate brush terminal.

Further, in the above embodiment, the shape of the card is rectangular so as to conform to the standard of the conventional magnetic card. However, the present invention is not limited to this. A square or polygonal shape is optional.

In the above embodiment, the thickness of the card is the same as that of a normal CD-R disc. However, the present invention is not limited to this. What is necessary is just to select suitably from intensity | strength etc.

Further, in the first embodiment, an example in which the thin portion 7 is provided on the outer peripheral portion of the mounting hole 3 is exemplified. However, the present invention is not limited to this, and as shown in FIG. Alternatively, a card having a uniform thickness without the thin portion 7 and the thick portion 4 may be used.

[0045]

The present invention has the following effects. (A) According to the first aspect of the present invention, the integrated circuit (IC)
Further, by providing the input / output unit between the mounting hole and the optical recording unit, the distance from the center of rotation of the integrated circuit (IC) and the input / output unit is reduced, and the dynamic balance of the entire IC card is reduced. And high recording accuracy and high reading accuracy can be obtained.

(B) According to the second aspect of the present invention, since the input / output portion is concentric with the mounting hole, uneven distribution of weight can be reduced and dynamic balance can be further improved.

(C) According to the third aspect of the present invention, the provision of the eccentricity compensator improves the dynamic balance of the entire IC card, and can obtain high recording accuracy and reading accuracy.

(D) According to the invention of claim 4, the eccentricity compensator can be easily formed on the card.

(E) According to the invention of claim 5, the eccentricity compensator can be easily formed on the card.

(F) According to the invention of claim 6, since the IC card is symmetrical with respect to the mounting hole, the weight distribution is also symmetric and the dynamic balance is stabilized, and the integrated circuit (IC) , The IC card can be used by using the other integrated circuit (IC) even if a failure occurs in one of the integrated circuits (IC).

(G) According to the seventh aspect of the present invention, since the input and output of the recording data can be performed in a non-contact manner, the wear of the IC card can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a top view and a sectional view showing an IC card according to a first embodiment of the present invention.

FIG. 2 is a top view showing an IC card according to a second embodiment of the present invention.

FIG. 3 is a top view showing an IC card according to a third embodiment of the present invention.

FIG. 4 is a top view showing an IC card according to a fourth embodiment of the present invention.

FIG. 5 is a top view showing another IC card of the present invention.

FIG. 6 is a top view showing a conventional IC card.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card 1 "IC card 2 Optical recording part 3 Mounting hole 3" Mounting hole 4 Thick part 5 Integrated circuit (IC 6 Antenna coil 6 Said antenna coil 7 Thin part 20 Card 21 Integrated circuit (IC) 22 Antenna coil 23 Mounting Hole 24 Optical recording part 25 Thick part 26 Notch 30 IC card 32 Non-contact IC module 33 Mounting hole 34 Optical recording part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) G11B 7/24 572 G06K 19/00 HF term (reference) 2C005 HA26 JA11 LB07 NA02 NA06 5B035 AA01 AA02 AA03 BA05 BB04 BB09 BB11 BB12 CA01 CA23 5D029 TA30 VA07

Claims (7)

[Claims] 1. An integrated circuit (IC) for storing recording data in an electrically rewritable manner, an input / output unit for inputting / outputting the recording data, and a rotator for rotating an IC card at a central position thereof. An IC card comprising: a mounting hole in which the IC card can be mounted; and an optical recording unit capable of optically writing and reading recording data in an outer peripheral area of the mounting hole. The entry output section,
An IC card provided between the mounting hole and the optical recording unit. 2. The IC card according to claim 1, wherein the input / output unit has a concentric shape with the mounting hole. 3. An integrated circuit (IC) for storing recording data in an electrically rewritable manner, an input / output unit for inputting / outputting the recording data, and a rotator for rotating the IC card at a central position thereof. An IC card comprising: a mounting hole in which the IC card can be mounted; and an optical recording unit capable of optically writing and reading recording data in an outer peripheral area of the mounting hole. An IC card comprising: a writing output unit; and an eccentricity compensating unit for compensating eccentricity when the rotator rotates the IC card, the eccentricity compensating unit being provided on an outer peripheral portion of the optical recording unit. 4. The IC card according to claim 3, wherein the eccentricity compensating portion is formed by providing a thick portion in which the resin constituting the card is thick at an appropriate position on the IC card. 5. The IC card according to claim 3, wherein the eccentricity compensator is formed by providing a notch of an appropriate size at an appropriate position on the outer periphery of the card. 6. The eccentricity compensator is configured to control the integrated circuit (I
4. The IC card according to claim 3, wherein the IC card is formed by providing the same integrated circuit (IC) as the integrated circuit (IC) at a position symmetrical with respect to the mounting hole of C). 7. The IC card according to claim 1, wherein the input / output unit is capable of inputting / outputting recording data in a non-contact manner.