JP4665198B2 - CAPACITIVE DATA GENERATION METHOD, RECORDING MEDIUM USING THE SAME, AND CAPACITIVE DATA READING DEVICE - Google Patents

Description

  The present invention relates to a method for generating capacitive data in a completely novel form, a recording medium using the same, and a capacitive data reader.

  Conventionally, as a low-cost and energy-saving data card, a capacitive card that forms part of a circuit having a capacitor is known. As this capacity type card system, for example, US Patent No. The card system described in the specification of 4280119 and the international application WO95 / 14285 has a built-in fuse in the circuit of the capacity card, and when the fuse is in a complete state, a current flows and the fuse is blown. In this case, since the resistance is substantially increased, a system is shown in which a bit of data is represented by the state of resistance of the fuse.

U.S. Pat. No. 4,280,119

International Application WO95 / 14285

  Although this capacitive card is not particularly shown, a circuit having a capacitor can be formed only when the card unit is integrated with a sensor unit formed on the reader side.

  The card portion has a resistor and an electrode portion that forms part of a capacitor connected to each end of the resistor. The sensor portion includes a capacitor connected to each terminal of the power source. When a card part is set in a sensor part, the circuit which has an air capacitor which sandwiched air between each electrode part is formed.

  In a circuit formed in this way, when it is burned out by passing a current through the resistor at a high voltage, it becomes used, and the unburned state becomes an unused bit, and a single closed circuit gives a 1-bit signal. It is done. Therefore, a data card capable of storing a signal having a required number of digits can be formed by forming an arbitrary number of closed circuits.

  However, in the conventional capacitive data card, since the arbitrary number of closed circuits must be formed one by one by irradiating a laser beam, the production of one capacitive data card is very complicated, and In order to increase the security of this data card, the closed circuit of each capacitive data card must be different, so that the manufacturing of the data card, That is, the laser beam irradiation control is extremely difficult and unsuitable for mass production, and thus has a problem that it is not versatile for various products.

  Further, in the conventional capacitive data card system, since the circuit electrode unit of the generated capacitive data and the electrode unit of the sensor are opposed to each other, an air capacitor circuit is formed and read. In the case of forming a fuse circuit of 8 × 8, an 8 × 8 grid circuit is formed, and the reading sensor electrode portion is approximately the same size as the capacity of the capacitive data region (the size of the 8 × 8 grid circuit). Since the structure has to be formed and read, the reading apparatus becomes large and the alignment must be performed with high accuracy. There has been a problem that the structure becomes complicated and expensive.

  The present invention was devised in view of the current situation, and the object is to form an arbitrary number (number of bits) of closed circuits by means of printing without irradiating a laser beam. , This arbitrary number of closed circuits can reliably read the capacitive data formed on the storage medium with at least two electrodes, and it is not necessary to perform positioning with high accuracy, and it is easy to use and greatly improves the reading device. It is an object of the present invention to provide a completely new method for generating capacitive data that can be reduced in size and greatly reduced in cost, a recording medium using the same, and a capacitive data reader.

  In order to achieve the above object, in the method for generating capacitive data according to claim 1, the capacitively formed circuit unit includes a positioning data circuit unit in which position data is recorded, and the positioning data circuit unit. It is formed by printing in series with a digital data circuit section in which a pair of digital data is recorded.

Further, in the method for generating capacitive data according to claim 2, the required number of positioning data circuit units and digital data circuit units formed in pairs in series are required in correspondence with the number of bits. Printing is formed at intervals.

According to a third aspect of the present invention, there is provided a recording medium having capacitive data according to claim 1, wherein a circuit printed by the capacitive data generation method according to any one of the first and second aspects is formed on paper, plastic, non-conductive metal body, It is characterized in that it is formed on the front surface, the back surface or the intermediate layer of any one of the magnetic recording medium and the hologram or a combination thereof.

  As described above, according to the first aspect of the present invention, the capacitively formed circuit unit includes the positioning data circuit unit in which the position data is recorded and the digital data that forms a pair with the positioning data circuit unit. By printing in series with the digital data circuit section on which is recorded, 1-bit capacitive data can be easily generated by printing without laser irradiation, and the conventional capacity.

According to the second aspect of the present invention, since the positioning data circuit portion and the digital data circuit portion, which are formed in a pair in series, are printed and formed at a required interval corresponding to the number of bits. Capacitive data corresponding to the amount can be easily generated, and can be provided at low cost.

According to a third aspect of the present invention, each of the capacitive data is generated on the surface, the back surface, or the intermediate layer of paper, plastic, non-conductive metal material, magnetic recording material, hologram, or a combination thereof. Since it is configured as described above, various types of recording media that currently use this type of data can be stored in a desired manner at low cost, and versatility can be greatly expanded.

It is a surface side view of the capacity card | curd which concerns on Example 1 of implementation of this invention. It is a figure which shows the back surface side of the capacitive card. It is a circuit block diagram of the fuse circuit area | region of the same capacity card | curd. It is explanatory drawing which shows the relationship between the capacitive card and a card reader.

Explanation of symbols

C card R reading device 10 magnetic storage unit 12 fuse circuit unit 21A positioning data reading unit 21B digital data reading units 31, 31A, 31B, 31C... 31n positioning data circuit units 32, 32A, 32B, 32C. 32n digital data circuit

  Hereinafter, the present invention will be described in detail based on Embodiment 1 of the present invention shown in the accompanying drawings.

  FIG. 1 shows the front side of a capacitive data card C which is an example of a storage medium according to one embodiment of the present invention, and FIG. 2 shows the back side of the card C.

The card C according to the first embodiment is formed in a rectangular substrate shape with a synthetic resin which is a non-conductive material. The card C includes a plurality of bits (for example, 8 bits, 16 bits, 32 bits, 64 bits, 128-bit fuse circuit portion 12 is formed by printing. Of course, the material of the card C can be plastic, glass, non-conductive metal, paper, or the like, and is selected according to the purpose of use.

As shown in FIG. 3A, the fuse circuit section (also referred to as a capacitive storage section) 12 of each of these cards C has a first bit, a second bit,. Positioning data circuit units 31A, 31B, 31C,... 31n composed of electrodes representing bit-bits, and digital composed of electrodes paired with the positioning data circuit units 31A, 31B, 31C,. 32n (in this specification, n represents the last bit) is printed in series. In the example shown in FIG. 3, the upper positioning data circuit unit 31A is printed on the data circuit units 32A, 32B, 32C,. Represents the first bit, the second bit is the positioning data circuit unit 31B, the third bit is the positioning data circuit unit 31C, Turn bit is positioning data circuit unit in order that positioning data circuit portion 31n is formed. Of course, the example shown in FIG. That is, the printed bottom positioning data circuit unit 31n represents the first bit, the second bit is the positioning data circuit unit 31n-1 and the third bit is the positioning data circuit unit 31n in order from the top. The positioning data circuit unit may be formed in the order of -2, the nth bit is the positioning data circuit unit 31A .

  As shown in FIG. 3B, each of the positioning data circuit unit 31 and the digital data circuit unit 32 is formed by two electrodes, and these two electrodes are connected to a fuse portion. Sometimes a current flows freely between the electrodes and the resistance is very low, and when the fuse is not connected, a resistance increase sufficient to reduce the current flow occurs.

  The fuse circuit unit 12 configured as described above is printed on the card C in a necessary number of stages to form a fuse circuit of the card C (hereinafter referred to as a fuse circuit 12 group).

  And in this Example 1, the fixed information which is not rewritten which is the card information recorded on the card | curd C is recorded.

This fixed information includes “card issuer number”, “card issue date”, “card face amount”, “card expiration date”, “card number”, etc. The fixed information is recorded and stored in the fuse circuit unit 12 group. Of course, a part of the fixed information is configured such that, for example, when a magnetic storage unit, an IC recording unit, or a hologram recording unit is formed, the correspondence with these can be verified. That is, for example, the “card number” of the fixed information is recorded as capacitive data, the same number as this card number is stored in the magnetic storage unit, and the same card number is engraved on the card surface for verification. Can be configured as follows.

  Further, in the first embodiment, for example, information distribution of the bits of the fuse circuit unit 12 group (128 bits in the first embodiment) can be performed. As an example of the distribution, for example, the card number “1234 5678 0912” can be used. 32 to 64 bits are allocated to 16 digits of “3456”, 16 bits are allocated to 4 digits of password “5656”, 16 bits are allocated to usage limit information, and 64 bits are allocated as spare bits to prevent forgery. Can be configured.

  In the first embodiment, the 12 groups of fuse circuit portions arranged in this way are formed by using a laser marking printing method. According to this laser marking method, a product of the present invention that requires a different fuse circuit configuration for each card C can be easily manufactured by automatically controlling it with a computer. Of course, in the case of mass production, in addition to the mask type laser masking method, it can be easily generated using a known screen printing method, hot stamping method, etching method, thermal transfer method or the like.

  In the first embodiment, the fuse circuit formed on the card-like substrate is overcoated with a nonconductive material such as a polyethylene film to form a protective layer. Is configured so that it cannot be visually recognized.

  Next, the reading device R for the card C will be described. As shown in FIG. 4, the input / output unit of the reading device R of the card C is configured to read the positioning information and digital data information of the fuse circuit unit 12 group of the card C.

In other words, the reading device R for the card C in the first embodiment is configured to read the positioning data reading electrode portion on the reading device side that forms an air capacitor circuit between the positioning data circuit portion 31 and the electrode portion of the digital data circuit portion 32. The positioning data circuit unit 31 and the digital data circuit unit 32 generate the unit 21A and the digital data reading unit 21B that reads “0” (a state in which no current flows) or “1” (a state in which a current flows). It is configured in a state of being aligned in a line corresponding to the state. Therefore, in the reading apparatus R according to the first embodiment, the configuration of the reading unit can be formed in the minimum unit, and the apparatus can be greatly simplified and reduced in size and cost. Of course, in the present invention, pairs of the positioning data reading unit 21A and the digital data reading unit 21B are arranged in a plurality of rows corresponding to the generation states of the positioning data circuit unit 31 and the digital data circuit unit 32. May be.

In the first embodiment, the positioning data reading unit 21A and the digital data reading unit 21B are fixedly arranged at predetermined positions of the main body of the reading device R, and when the capacitive data is generated in a plurality of bits, Since the card C is slid in the direction of the reading units 21A and 21B as in the conventional magnetic card, the capacity data can be read, so that in the conventional magnetic card reader, The reading device R can be greatly reduced in size and cost. In addition, since the above-mentioned capacitive data can be printed on a known magnetic surface, it can be hybridized with a conventional magnetic card system to simultaneously read magnetic data and capacitive data with one reader by one action. The same usage pattern as that of a conventional magnetic card can be adopted.

Of course, in the present invention, for example, a pen-type main body (not shown) capable of handing the positioning data reading unit 21A and the digital data reading unit 21B without configuring the reading device R as in the first embodiment. It is also possible to read the capacitive data by sliding or pressing the main body along the capacitive data of the card C. In this case, the reading device is greatly reduced. While being able to reduce in size and cost, since it is comprised by the handy type, the effect that handling operativity becomes favorable is acquired.

  In the first embodiment, the reading device R can be provided with a magnetic data reading unit that reads information in a magnetic storage area, for example. Of course, the reading device is composed of a capacitive data read-only device and a magnetic data read-only device, and after reading data with one read-only device, the other read-only device reads and collates the data. You may comprise.

  As a configuration example of the card C according to the present invention that can be configured in this manner, for example, a fuse circuit group (capacitive region) and a magnetic storage unit are provided on the front side or the back side of the substrate, such as a prepaid card. In addition, the printing surface can be stacked and printed in order. Also, for example, a stripe type magnetic storage section and a fuse circuit section (fuse area) are printed on the printed surface of the substrate, as in the stripe type used for bank cards, credit cards, gift cards, etc. You can also. Further, for example, as in a rewritable prepaid card, the fuse circuit portion (fuse region) according to the present invention is formed on one printing surface, and the rewritable surface is formed on the other printing surface, and the back surface of the other printing surface. A magnetic storage unit may be formed on the side.

  Of course, the application example of the present invention is not limited to this. Instead of the magnetic storage area, a fuse circuit is used in combination with product information, for example, a gift card printed with a barcode such as the gift card number. Alternatively, it can be used in combination with a hologram, an IC chip or a microchip.

  Specific products to which the card C configured in this way can be applied are forgery and alteration prevention, for example, bank cards, credit cards, prepaid cards, telephone cards, gift certificates, gift cards Alternatively, it can be applied to book coupons, and can also be used as copy protection means for CDs and DVDs.

  In addition, if the capacity data storage method according to the present invention is used, it can be easily applied to an Internet authentication card and it is very difficult to forge, so the safety of electronic payments and the like is protected with very high security. The effect that it becomes possible to obtain is obtained.

Claims (3)

The capacitively formed circuit part is formed by printing in series with a positioning data circuit part in which position data is recorded and a digital data circuit part in which digital data paired with the positioning data circuit part is recorded. A method of generating capacitive data characterized by the above. 2. The capacitive data according to claim 1, wherein the positioning data circuit part and the digital data circuit part formed in a pair in series are printed at a required number of intervals corresponding to the number of bits. Generation method. A circuit printed by the capacitive data generation method according to claim 1 is one of paper, plastic, a non-conductive metal body, a magnetic recording body, and a hologram, or an appropriate combination thereof. A recording medium having capacitive data generated on the front surface, the back surface, or the intermediate layer.

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