JP3486746B2 - Prepaid card system, reading device and card identification method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for processing a prepaid card according to the amount of money consumed, and more particularly to a prepaid card system, a reading device and a card discriminating method for dealing with fraud by copying information stored in the prepaid card.

[0002]

2. Description of the Related Art A prepaid card system has been realized in which a prepaid card storing monetary amount information is used for payment of a loan for a game medium or the like. The prepaid card system includes, for example, a recording device installed in the card issuer, a ticket issuing machine installed in each store, a reading device, and the like. The recording device records (encodes) fixed information such as a card ID and a face amount, and variable information such as a balance on each prepaid card. The prepaid card in which the variable information and the fixed information are recorded is sold, for example, by the card issuer to each store.

In each store, for example, a prepaid card purchased from a card issuer is stored in a ticket issuing machine. Ticket issuing machine
In response to a purchase request from a user, a prepaid card stored in the self is subjected to predetermined ticket issuing processing to issue a ticket.
The issued prepaid card is used by a user, for example, in a reading device of a store. The reading device performs a predetermined check on the inserted prepaid card, and if the check result is proper, permits the use of the card. Then, the variable information including the balance information stored in the prepaid card is recorded and updated according to the consumption amount and the like and discharged.

[0004]

However, in the system as described above, there is a possibility that a fraudulent card is forged by, for example, copying the variable information of the prepaid card to another card. For example, the reading device performs various checks on the inserted card, and records and updates the variable information when the check results are proper, but records the variable information after the check is properly completed. If the card to be processed is replaced with another card (for example, a card in which variable information such as balance information is not recorded) before the update, the variable information will be recorded in the other replaced card. As a result, for example, a card with a large balance is inserted, and after the check at the time of insertion is completed, it is replaced with a card that does not store variable information and the data of the card with a high balance is recorded, so that the card is forged. May occur.

The present invention has been made in view of the above-mentioned circumstances, and accurately detects a fraudulent attempt to copy and use the stored information of an authorized prepaid card on an altered or forged prepaid card medium, and then alters or alters the information. An object of the present invention is to provide a prepaid card system, a reading device, and a card discrimination method capable of eliminating unauthorized use of a prepaid card due to forgery.

[0006]

In order to achieve the above object, a prepaid card system according to a first aspect of the present invention is a prepaid card system having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a card
In the first information storage area, printing is performed
Function is added to the quantized data obtained by quantizing the magnetic reproduction waveform of the part
The function data obtained by operating the first information storage area
Area, and store the quantized data in the second information storage area.
The recording means for storing and issuing, and the printing are provided.
The magnetic reproduction waveform of the part is detected and quantized, and the second information
Compared with the quantized data stored in the information storage area
Or when a function is applied to the quantized data.
The calculation result and the function data stored in the first information storage area.
The balance information is obtained by comparison with the
Match and match the amount information stored in one of the areas
And a reading means for detecting fraud when not doing so.

According to such a configuration, the reading means performs a predetermined functional process on the characteristic information corresponding to the variation in the reproduced waveform of one storage area which is superimposed on the print portion peculiar to each medium of the prepaid card. , Record in one storage area,
Based on the update of the balance information, etc., the function information of the divided areas corresponding to the remaining balance range of the one storage area is invalidated, and the division corresponding to the function information written in each storage area is set to the balance of the prepaid card. By collating with the information, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

Further, a prepaid card system according to a second aspect of the present invention has a plurality of magnetic information storage areas.
Prepaid to make financial payments with your prepaid card
In the card system, the concave part of the first information storage area
Quantized magnetic reproduction waveform of the part where the convex part is formed
Function data obtained by applying a function to the quantized data
Stored in the first information storage area, the quantized data
Recording means for storing and issuing in the second information storage area;
The magnetic reproduction waveform of the part where the uneven part is formed is detected.
Quantized and stored in the second information storage area
When it does not match with the quantized data, or when the quantized data
Result of operation of function on data and first information storage
The balance information can be obtained by comparing with the function data stored in the area.
Stored in any of the plurality of information storage areas
Match the amount of money information, and if they do not match, detect fraud
And a reading means for reading.

According to this structure, the reading means performs a predetermined functional process on the characteristic information corresponding to the variation in the reproduced waveform of one storage area which is superimposed on the uneven portion unique to each medium of the prepaid card. , The function information of the divided areas corresponding to the remaining balance range of the one storage area which is recorded in one storage area and is updated based on the update of the balance information and the function information written in each storage area is invalid. By checking the corresponding classification with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

[0010]

A prepaid card system according to a third aspect of the present invention has a plurality of magnetic information storage areas.
A prepaid card that makes financial payments with a prepaid card
In the system, in the magnetic layer of the first information storage area
Quantized magnetic reproduction waveform of the part where the noise source is formed
Function data obtained by applying a function to the quantized data
Stored in the first information storage area, the quantized data
Recording means for storing and issuing in the second information storage area;
The magnetic reproduction waveform of the part where the noise source is formed on the magnetic layer
Detected and quantized and stored in the second information storage area
Quantized data compared and does not match, or the amount
The calculation result of applying a function to the child data and the first information
The balance information can be obtained by comparing the function data stored in the information storage area.
Information and stored in any of the plurality of information storage areas
If it does not match, the fraud is detected.
And a reading means to output.

According to such a configuration, the reading means performs a predetermined function process on the characteristic information corresponding to the variation in the reproduced waveform of one storage area superimposed on the noise source specific to each medium of the prepaid card. , Record in one storage area,
Based on the update of the balance information, etc., the function information of the divided areas corresponding to the remaining balance range of the one storage area is invalidated, and the division corresponding to the function information written in each storage area is set to the balance of the prepaid card. By collating with the information, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

[0013]

[0014]

A reading device according to a fourth aspect of the present invention is
Prepaid card having a plurality of magnetic information storage areas
Is a reading device for processing the
The magnetic reproduction waveform of the printed part is detected and reproduced.
Also, the magnetic reproduction waveform of the printed part
Quantized data obtained by detecting and reproducing
Data stored in the information storage area of the
Function data obtained by applying a function to the data
Read the data stored in the first information storage area.
Reader / writer means for picking up, and the reader / writer means
Has been printed with the quantized data read by
And reconstructed and quantized the magnetic regenerated waveform of the part
And the function applied to the quantized data.
The calculation result and the function data stored in the first information storage area.
The balance information is obtained by comparison with the
Check the amount information stored in one of the areas
Check control hands that detect fraud if they do not match
And a step.

According to such a configuration, the characteristic information corresponding to the variation of the reproduced waveform of one storage area which is superimposed on the print portion peculiar to each medium of the prepaid card is subjected to a predetermined functional process to make one storage. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

A reading device according to a fifth aspect of the present invention is
Prepaid card having a plurality of magnetic information storage areas
Is a reading device for processing the
The magnetic reproduction waveform of the area where
And the magnetic re-
Quantized data obtained by detecting and reproducing a raw waveform
Data stored in the second information storage area and the amount
Function data obtained by applying a function to child data
Data stored in the first information storage area in advance.
Reader / writer means for reading data, and the reader / writer
The quantized data read by the
Detects and reproduces the magnetic reproduction waveform of the formed part and quantizes it.
The quantized data and create a function.
The calculation result used and stored in the first information storage area
The balance information is obtained by comparison with the function data
Refer to the amount information stored in any of the information storage areas.
Check, and if either does not match, check the fraud
And a clock control means.

According to this structure, a predetermined function process is applied to the characteristic information corresponding to the variation of the reproduced waveform of one storage area which is superimposed on the uneven portion peculiar to each medium of the prepaid card, and one storage is performed. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

A reading device according to a sixth aspect of the present invention is
Prepaid card having a plurality of magnetic information storage areas
Is a reading device for processing the
Detecting and reproducing the magnetic reproduction waveform of the part where the noise source is formed
In addition, the magnetic reproduction wave of the portion where the noise source is formed
The quantized data obtained by detecting and reproducing the shape
Data stored in the second information storage area, and the quantization
Function data obtained by applying a function to data,
The data stored in advance in the first information storage area is
Reader / writer means for reading and the reader / writer hand
Forming the quantized data read by the stage and the noise source
Detected and reproduced the magnetic reproduction waveform of the part that is
Collates with the data and acts on the quantized data
The calculated result and the stored information in the first information storage area
The balance information is obtained by comparison with the function data, and
Collate with the amount information stored in any of the information storage areas
If any of them do not match, the check for fraud is detected.
Control means.

According to such a configuration, the characteristic information corresponding to the variation of the reproduced waveform of one storage area superimposed on the noise source specific to each medium of the prepaid card is subjected to a predetermined functional process to make one storage. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

When the reading device does not detect fraud
The amount of money stored in the information storage area according to the amount of consumption.
Consumption processing means for updating the information may be provided.
The consumption processing means is configured to set the first
In the information storage area of the
Of the function data
The size of the area may correspond to the balance.

A card discriminating method according to a seventh aspect of the present invention is a prepaid card having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a card
A method of discriminating a card in the first information storage area
Quantize the magnetic reproduction waveform of the printed part
Function data obtained by applying a function to the quantized data
Is stored in the first information storage area, and the quantized data
Storing and issuing in the second information storage area,
By detecting the magnetic reproduction waveform of the printed part
Quantization and quantization stored in the second information storage area
When it does not match when compared with the data, or when the quantization data
Calculation result of applying a function to the data and the first information storage area
Balance information by comparing with the function data stored in the area
Stored in any of the plurality of information storage areas
Match the amount of money information, and if they do not match, detect fraud
And a step of

According to such a configuration, the characteristic information corresponding to the variation in the reproduced waveform of one storage area which is superimposed on the printing portion peculiar to each medium of the prepaid card is subjected to a predetermined functional process to make one storage. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

A card discriminating method according to an eighth aspect of the present invention is a prepaid card having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a card
A method of discriminating a card in the first information storage area
Quantize the magnetic reproduction waveform of the part where the uneven part is formed
Function obtained by applying a function to the quantized quantized data
Data is stored in the first information storage area and the quantization data is stored.
Storing the data in the second information storage area and issuing the data
And the magnetic reproduction waveform of the portion where the uneven portion is formed.
Detected and quantized and stored in the second information storage area
Quantized data compared and does not match, or the amount
The calculation result of applying a function to the child data and the first information
Balance by comparing with the function data stored in the report storage area
Information is obtained and stored in any of the plurality of information storage areas.
Check the amount information that is stored, and if it does not match,
A step of detecting.

According to such a configuration, a predetermined functional process is applied to the characteristic information corresponding to the variation of the reproduced waveform of one storage area which is superimposed on the uneven portion peculiar to each medium of the prepaid card, so that one storage is performed. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

A card discrimination method according to a ninth aspect of the present invention is a prepaid card having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a card
A method of discriminating a card in the first information storage area
Magnetic reproduction waveform of the part where the noise source is formed in the magnetic layer
Is obtained by applying a function to the quantized data
The function data is stored in the first information storage area, and the amount
The sub data stored in the second information storage area and issued
And the magnetic field of the part where the noise source is formed in the magnetic layer.
Air reproduction waveform is detected and quantized, and the second information storage area
When compared with the quantized data stored in the area and they do not match,
Or, a calculation result obtained by applying a function to the quantized data,
Comparison of function data stored in the first information storage area
Balance information is obtained by any of the plurality of information storage areas
When the money amount information stored in
Includes a reading step for detecting fraud.

According to such a configuration, the characteristic information corresponding to the variation of the reproduced waveform of one storage area superimposed on the noise source specific to each medium of the prepaid card is subjected to a predetermined functional process to make one storage. Based on the update of the remaining amount information etc. in the area, the function information of the divided area corresponding to the remaining amount range that does not correspond to the one storage area is invalidated, and the section corresponding to the function information written in each storage area is determined. By collating with the remaining amount information of the prepaid card, it is possible to accurately detect fraud caused by copying the stored information of another prepaid card. Therefore, it is possible to prevent unauthorized use of the prepaid card due to alteration or forgery of the medium.

A step of recording random data as the consumed information may be included. Further, it may include a step of recording delete data for deleting the record information as the consumed information.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a prepaid card system according to the present invention will be described with reference to the drawings for its embodiments. FIG. 1 shows the configuration of a prepaid card system according to the first embodiment of the present invention. The prepaid card system shown in FIG. 1 includes a reading device 1, a relay device 2, a recording device 3, and a settlement center 4. The recording device 3 and the settlement center 4 are installed in a card issuer D such as a card issuing company and a card manufacturing factory.
Generally, there are a plurality of stores S corresponding to the card issuer D, and each store S is provided with a plurality of reading devices 1 and a relay device 2 connecting the reading devices 1 to the settlement center 4.

The relay device 2 is not limited to one at each store S,
One relay device 2 may be provided for each predetermined area in the store S, for example, for each hall and floor. That is,
The relay device 2 includes a plurality of reading devices 1 and stores S for each store S.
It is provided between the plurality of reading devices 1 for each hall in the hall or the plurality of reading devices 1 for each floor in the store S and the settlement center 4. In this prepaid card system, the prepaid card manufactured and issued by the card issuer D is sold to the store S and further sold to the user at the store S.
At the store S, the user can pay the price for providing a service such as renting a game medium by using a prepaid card.

This service provision and payment are performed using the reading device 1 installed in the store S, and the amount of money stored as amount information in the prepaid card is consumed.
The store S collects the amount of money information consumed by the reading device 1 in the relay device 2 and sends it to the settlement center 4 of the card issuer D. The card issuer D operates from each store S to the settlement center 4
The amount of money corresponding to the amount information received by is paid to each store S as sales.

A prepaid card used in this prepaid card system will be described with reference to FIG. As shown in FIG. 2, the prepaid card PC has a magnetic information storage unit DA using a magnetic layer, and the information storage unit DA is
It has a first information area TA and a second information area TB.
The variable information ta including the quantized data Rr as the characteristic information is written in the first information area TA.

The second information area TB is set so as to include a portion where some kind of printing (characters "X" to "Z" in FIG. 2) is applied, and due to consumption of the prepaid card PC, etc. The variable information tb that can be updated at any time is stored. Quantized data obtained by quantizing the magnetic reproduction waveform of the characteristic data Ro of the printed portion of the information area TB as characteristic information is included in the variable information ta.
It is written as r in a predetermined portion of the first information area TA.
This magnetic reproduction waveform is a waveform peculiar to the prepaid card PC, because the stored information which has been previously set as the variable information tb varies depending on the amount of ink in the printing portion in the process of recording and reproduction.

In the variable information tb of the second information area TB,
Further, function data Rf obtained by calculating the above-mentioned quantized data Rr by a constant function such as a one-way function at the time of encoding is written. The function data Rf is
It is information obtained by calculating the quantized data Rr obtained by quantizing the detection information of the characteristic data Ro by a predetermined quantization method with a predetermined function. The area of the function data Rf corresponds to the remaining amount of the prepaid card PC, and as the remaining amount decreases due to consumption, for example, the random data is gradually overwritten or the function data is erased from the right end side in the drawing,
The area of the function data Rf is reduced. Function data Rf
Is data for which the size of the remaining function data area can be determined by comparing with the initial data.

That is, the second information area TB stores the corresponding remaining amount in the function data Rf each time the amount information or the like is updated, each time the remaining amount obtained as the update result becomes a new remaining amount range at the time of updating. Random data or erase data (no signal data), for example, is written in the portion corresponding to the surplus balance range as consumed data that can be distinguished from the initial state.

Quantized data of these characteristic information and other balance information of consumed data, card identification information (card ID) of the prepaid card PC, manufacturer code indicating the manufacturer,
The manufacturing date (encoding date) information, an error code when an error occurs, and the like are recorded in other parts of these information areas TA and TB or in an information area provided separately.

The recording device 3 is a device for issuing a prepaid card PC at the card issuer D. When the prepaid card is issued, the recording device 3 writes the variable information ta in the first information area TA of the information storage unit DA of the prepaid card PC and writes the variable information tb in the second information area TB of the information storage unit DA. Write. Variable information ta
As described above, as the initial information, the characteristic information R based on the reproduced waveform of the second information area TB superimposed on the print portion
Quantized data R obtained by quantizing o by a predetermined quantization method
Including r. That is, when writing the quantized data Rr of the variable information ta to the first information area TA, the characteristic information Ro based on the reproduced waveform of the second information area TB superimposed on the print portion is used by a predetermined quantization method. And quantized to obtain quantized data Rr. As the quantized data Rr, for example, an analog reproduction signal by a magnetic head is
Information quantized by M (pulse code modulation) or information quantized by other A / D (analog-digital) conversion is used.

The variable information tb is obtained by applying a constant function such as a predetermined one-way function to the quantized data Rr obtained by quantizing the characteristic information Ro based on the reproduced waveform of the print portion by a predetermined quantization method. It contains the function data obtained by In addition, prepaid card P such as balance information
The information to be recorded in C may be recorded in an area other than the area used for reading the characteristic information and writing the quantized information in the information areas TA and TB, or an information area (not shown) is separately provided. Then, it may be recorded in the information area.

As shown in FIG. 3, the reading device 1 includes a communication processing unit 11, a consumption processing unit 12, a storage unit 13, a reader / writer 14, and a check control unit 15. The communication processing unit 11 performs communication between the consumption processing unit 12 and the relay device 2. For example, as a response to the request command from the relay device 2, the communication processing unit 11 reads the sales information including the consumption amount information of the prepaid card PC in the reading device 1 from the storage unit 13 and transmits it to the relay device 2.

The consumption processing unit 12 works in conjunction with a vending machine (not shown) or the like that executes a consumption operation by providing an item such as a game medium, and consumes a prepaid card corresponding to the provision of the game medium. Based on the above, the storage information such as the amount information of the prepaid card PC is updated via the reader / writer 14, and the sales information including the consumption amount information is stored in the storage unit 1.
Accumulate to 3. The storage unit 13 stores and accumulates sales information based on the daily processing of consumption amount by the consumption processing unit 12.

When the prepaid card PC is inserted, the reader / writer 14 first sets the first of the prepaid card PC.
The quantized data Rr, which is the stored information in the information area TA, is read, the magnetic reproduction waveform is actually measured from the second information area TB to obtain the characteristic information Ro, and the characteristic information Ro is supplied to the check control unit 15. Then, the reader / writer 14 reads the balance information from the predetermined storage area and supplies it to the check control unit 15 in the same manner.

The check control unit 15 stores the quantized data Rr, which is the storage information of the information area TA, and the data obtained by quantizing the characteristic information Ro based on the magnetic reproduction waveform measured from the information area TB by the same quantization method. To match. At this time,
Furthermore, the check control unit 15 calculates the quantized data Rr by a constant function to obtain the function data, and reads the function data R read from the second information area TB of the prepaid card PC.
Whether or not it corresponds to the remaining amount information of the prepaid card PC read from the reader / writer 14 by comparing with f and obtaining information indicating, for example, the remaining amount range from the function data Rf erased by the consumption data as described later. Check.

The check controller 15 quantizes the measured quantized data obtained by quantizing the characteristic information Ro based on the actual detected information and the quantized data Rr read by the reader / writer 14 from the first information area TA. If not, or the balance obtained by comparing the calculation result of applying a predetermined function to the quantized data Rr and the function data Rf read by the reader / writer 14 from the second information area TB matches the actual balance information. If not, it is determined that an illegal prepaid card has been inserted, a warning is displayed, and the prepaid card is stored or ejected to prevent its use.

When it is determined that both are compatible, it is determined that the card is a proper prepaid card, and then it is confirmed whether or not other information stored in the prepaid card is inconsistent. The money amount information is processed by the consumption processing unit 12, and the balance information is written in the storage unit 13.

Further, the consumption processing unit 12 updates the balance information in accordance with the consumption amount information in the consumption processing unit 12,
Similarly, the balance information of the prepaid card PC is rewritten.
At this time, based on the remaining amount after the update, the consumption data including predetermined random data or deleted data is overwritten on the function data Rf in an area corresponding to the consumption amount to erase the consumption amount of the function data Rf. , The size of the area of the function data Rf corresponds to the balance. That is, the function data R
If f (1) is the initial value of f, then f (1) is calculated according to consumption.
-F (2) is deleted and function data Rf for f (2) corresponding to the balance is left. The deletion of the function data Rf based on the balance may be performed for each predetermined balance range, or may be performed corresponding to the balance continuously.

Further, the check control unit 15 also operates after the update.
Is the function data Rf read from the second information area TB of the prepaid card PC by the reader / writer 14.
The quantized data Rr in the first information area TA is compared and collated with the initial function data obtained by calculating a constant function to check whether or not it corresponds to the actual balance information. When the remaining amount does not correspond to the actual remaining amount information, again, it is determined that an illegal prepaid card has been inserted, a warning is displayed, and the prepaid card is stored or ejected to prevent its use.

As shown in FIG. 4, the recording device 3 has an encode control unit 31, a storage unit 32, a reader / writer 33, and a check information processing unit 34. The encoding control unit 31 uses the prepaid card P in the recording device 3.
Controls encoding of C, that is, writing of initial information. The storage unit 32 stores various information necessary for the encoding process by the encoding control unit 31 and temporary information being processed. The reader / writer 33 is controlled by the encoding control unit 31 to control the information storage unit D of the prepaid card medium.
Predetermined information is written in each storage area including the first and second information areas TA and TB of A.

The reader / writer 33 moves a magnetic head (not shown) relative to the prepaid card PC when writing magnetic information to the prepaid card PC. In this case, the magnetic head is moved. Even if
The prepaid card PC may be moved, or both may be moved simultaneously in different directions. The reader / writer 33 writes predetermined information to the detection area of the characteristic information Ro of the second information area TB under the control of the encoding control unit 31, and then reproduces the corresponding part of the information area TB to reproduce the characteristic information Ro. Is supplied to the check information processing unit 34.
The check information processing unit 34 A / D-converts and quantizes the characteristic information Ro based on the reproduced waveform using PCM or the like of a predetermined quantization method, and supplies the quantized information to the encoding control unit 31.
For writing in the information area TA. The encoding control unit 31 writes the quantized data Rr given from the check information processing unit 34 into the first information area TA of the prepaid card PC via the reader / writer 33.

The reading device 1 is connected to, for example, a vending machine (not shown) for lending a game medium, and the price of the game medium provided to the user by the vending machine is transferred to the prepaid card PC. It is a device for embodying the consumption of the prepaid card PC by subtracting it from the remaining amount in the stored amount information. When the prepaid card PC is set, the reading device 1 first reads the reader / writer 1
4, the characteristic data Ro of the printing portion of the second information area TB of the prepaid card PC is detected and reproduced to obtain reproduction information, and the first and second information areas TA and T are obtained.
The quantized data Rr and the function data Rf are read from B. Then, the check control unit 15 quantizes the reproduction information of the characteristic data Ro by a predetermined quantization method such as PCM, and compares it with the quantized data Rr obtained from the first information area TA.

If the reading device 1 determines that they correspond to each other as a result of the collation of the quantized data Rr, the reading device 1 uses the second information as the initial function data obtained by performing an arithmetic operation on the quantized data Rr by a predetermined constant function. The balance is calculated by comparing with the function data Rf obtained from the area TB, and the balance is actually compared with the balance information stored in the prepaid card PC. When it is determined that the balance is correct, the prepaid card PC is normal. When it is determined that at least one of them does not correspond as a result of the collation, it is determined that the prepaid card PC is abnormal and is an unauthorized prepaid card PC. In many cases, the actual measurement value of the magnetic reproduction waveform may include stains on the surface of the prepaid card due to aging, deterioration of the magnetic material, and differences in the detection characteristics of the magnetic heads between the reader / writers 14 and 33. The quantized data measured value and the stored value do not have to be exactly the same, and there are some similarities that can be regarded as substantially the same prepaid card medium, such as matching within a predetermined quantization accuracy. Good.

Further, the reading device 1 checks whether or not there is a contradiction between the stored information and the like in the information storage unit DA of the prepaid card PC, and if there is a contradiction, the prepaid card PC has some illegality and trouble. It is determined that there is. When it is determined that the prepaid card is illegal or defective, the reading device 1 transmits the detection data including the card identification information of the illegal prepaid card to the relay device 2 and blocks the use of the prepaid card to eject it. Further, the reading device 1 receives from the relay device 2 the notification data of the prepaid card information determined as the illegal prepaid card by the other reading device 1, and immediately after the prepaid card PC is loaded, the reading data is notified based on the notification data. Discriminate prepaid cards, block their use and eject.

The relay device 2 collects the amount information processed as the amount of consumption in each reading device 1 in the store S,
Send to settlement center 4. Next, the processing in the above-mentioned prepaid card system will be described with reference to the flowcharts shown in FIGS. First, the recording device 3
The encoding process in will be described with reference to FIG. The encoding process shown in FIG. 5 is activated each time a prepaid card medium is set in the recording device 3.

The prepaid card medium is the reader / writer 3
When set to 3, first, the encoding control unit 31
Via the reader / writer 33, the variable information t is provided at least on the printing portion of the second information area TB of the prepaid card medium.
The predetermined initial information of b is written, the information of the printing portion is read through the reader / writer 33, and the characteristic information Ro consisting of magnetic waveform information is detected (step S1). The check information processing unit 34 quantizes the feature information Ro by PCM according to a predetermined quantization method or other A / D conversion or the like (step S2), and stores the quantized data Rr in the first information area TA. Write (step S3).

The check information processing unit 34 further performs an arithmetic operation on the quantized data Ro by a predetermined function such as a predetermined one-way function (step S4), and writes it in the second information area TB as initial information of the function data Rf. (Step S5)
(See Figure 9). Further, the encoding control unit 31 writes other encoded data via the reader / writer 33 (step S6), and ends the encoding process. Next, the consumption processing in the above-mentioned prepaid card system will be described with reference to the flowcharts shown in FIGS. The consumption process shown in FIG. 6 is activated each time the prepaid card PC is set in the reader / writer 14 of the reading device 1.

When the processing is started, the reader / writer 14
Checks whether or not the set prepaid card PC is normal (step S11). That is, first, the prepaid card PC set in the reader / writer 14
Reproduced waveform information of the characteristic data Ro of the print area is quantized by a predetermined quantization method and compared with the quantized data Rr of the first information area TA. If they do not match,
The set prepaid card PC is abnormal and is determined to have been created by an unauthorized means (FIG. 10).
reference).

If both match, a predetermined constant function is applied to the quantized data Rr to generate an initial value f of the function data Rf.
(1) is obtained, and the function data Rf ′ of the second information area TB is obtained.
Compare and collate. By this comparison, the balance is estimated from the size of the area of the function data Rf '. It is checked whether or not this remaining amount corresponds to the remaining amount information that is actually read from the prepaid card PC, and if it does not correspond, the set prepaid card PC is abnormal and is created by an illegal means. Judgment (see FIG. 11).

If the balance range obtained from the function data Rf 'matches the balance information separately read from the prepaid card PC, the prepaid card PC is considered to be proper, and the check control unit 15 The presence or absence of contradiction in the stored information is detected. At this time, if a contradiction is detected in the stored information, the prepaid card PC is determined to be abnormal.

If no abnormality is detected by the check control unit 15 and it is determined to be normal, the consumption processing unit 12
Thus, the balance of the prepaid card PC is confirmed via the reader / writer 14 and stored in the storage unit 13 (step S12). If there is a balance, it is checked whether or not there is an end request from the user pressing an end switch (not shown) (step S13). If there is no end request, a consumption request by pressing a consumption switch (not shown), for example, It is checked whether or not there is a request for lending a game medium (step S14). For example, in the case of a gaming system or the like, the end switch is a card return switch that requests return of a card, and the consumption switch is
It is a lending switch that requests lending of a game medium.

If there is a consumption request from the user in step S14, the game medium is lent to the user for consumption (step S15). The consumption processing unit 12 subtracts the consumption amount from the original remaining amount and updates the remaining amount stored in the storage unit 13 as a new remaining amount (step S1).
6). Then, it is checked whether or not the new balance after the update is "0" (step S17). If the balance is "0",
A message to that effect is displayed (step S18), and the process proceeds to the end process for ending the consumption process (step S19). After the end processing ends, the consumption processing ends and returns to the standby state.

In step S12, if there is no remaining amount of the prepaid card PC or if the remaining amount cannot be confirmed, the process immediately jumps to step S19 to execute the ending process. Even if the end request is recognized in step S13, the process immediately jumps to step S19 to execute the end process.

If there is no consumption request in step S14, the process returns to step S13 and waits for an end request and a consumption request. In step S17, even if the deduction balance does not become "0" and the balance remains, the process returns to step S13 and waits for the end request and the consumption request.

The details of the card check processing in step S11 are shown in FIG. When the card check process is started, first, the check control unit 15 causes the reader / writer 1 to
Via the second information area T of the prepaid card PC.
The characteristic data Ro of B is read and quantized (step S
21), as shown in FIG. 10, collated with the quantized data Rr read from the first information area TA (step S2).
2) Check whether the two match (step S2)
3). If they match, the quantized data Rr is calculated by a predetermined function such as a one-way function to obtain initial function data Rf (step S24). Then, the function data Rf is compared with the function data Rf ′ read from the second information area TB to detect the balance range (step S2).
5) Through the reader / writer 14, the balance information read from the predetermined storage area of the prepaid card PC is collated (step S26), and it is checked whether or not both correspond (step S27).

If the balance information corresponds, the check controller 15 further detects a contradiction between the amount information and other information (step S28), and checks whether there is a contradiction (step S28). S29). If there is no contradiction, the check control unit 15 determines that the prepaid card PC is normal (step S30), finishes the process, and returns to FIG.
Return to the consumption processing of.

If it is determined in step S23 or step S27 that they do not match, it is determined to be abnormal (step S31), and a warning display indicating the injustice of the prepaid card PC and a predetermined take-in or ejection of the prepaid card PC are given. Error / illegal processing is performed (step S3)
2). Also, when it is determined in step S29 that there is a contradiction, the process proceeds to step S31, and a predetermined abnormality / illegal process is performed.

FIG. 8 shows the details of the termination processing in step S19 of FIG. When the end processing is started, the consumption processing section 12 determines the remaining amount of the prepaid card PC from the final remaining amount information (step S41), for example, FIG.
As shown in, the function data Rf 'at the time of loading is checked from the state of f (1) (in this case, unused) to determine whether the remaining amount needs to be changed (step S42). If it is necessary to change the balance, the consumption processing unit 12 causes the check control unit 15 and the reader / writer 14 to change the balance shown in FIG.
As shown in, in the areas f (1) -f (2) corresponding to the balance range exceeding the corresponding balance of the second information area TB, consumed data such as random data or deleted data that can be distinguished from the initial information. Rd is written (step S43).

Next, the consumption processing unit 12 writes the balance information in a predetermined information area of the prepaid card PC via the reader / writer 14 regardless of whether the balance is updated or not (step S44). ), Check control unit 15
Thereby, the quantized data Rr and the function data Rf are detected and collated based on the storage information of the first and second information areas TA and TB, almost in the same manner as the card check processing at the time of loading the prepaid card PC (step S45). As shown in FIG. 14, it is determined whether or not the balance range indicated by the function area f (2) of the function data Rf ′ corresponds to the actual balance information (step S46).

If it is determined in step S46 that they match each other, other termination processing is performed (step S47), and the prepaid card PC is ejected from the reader / writer 14 (step S48). Then, the processing is ended and the processing returns to the consumption processing.

If it is determined in step S46 that they do not match, the check control unit 15 determines that the prepaid card PC is abnormal (step S46).
49), warning display indicating fraud of the prepaid card PC and predetermined abnormal / illegal processing such as taking in or ejecting the prepaid card PC are performed (step S50).

In this way, the reading device 1 quantizes the detection information of the characteristic data Ro, the quantized data Rr of the storage information ta in the first information area TA, and the second data every time the reading device 1 consumes the data. The correspondence of the function data Rf of the storage information tb of the information area TB of is checked, and the function data Rf of the storage information tb of the second information area TB is updated if necessary. Then, each time it is updated, the function data obtained by operating the quantized data extracted from the first information area TA with a predetermined constant function is compared with the function data Rf read from the second storage area TB. Therefore, prepaid card PC
, The quantized data does not correspond correctly, and an illegally copied prepaid card can be detected. Therefore, it is possible to accurately detect fraud by copying the stored information of another prepaid card, and it is possible to prevent illegal use of the prepaid card due to alteration or forgery of the medium.

The printing portion and the detection portion of the characteristic data Ro in the prepaid card PC are not the left end portion of the second information area TB as shown in FIG. 2 but the right end portion according to the arrangement of the printing portion. Alternatively, it may be an intermediate portion as shown in FIG. In this case, the function data Rf 'is divided and arranged on both sides of the characteristic data Ro.

Next, FIG. 16 shows the structure of a prepaid card used in the prepaid card system according to the second embodiment of the present invention. The configuration of the prepaid card system according to the second embodiment of the present invention is almost the same as that of the prepaid card system according to the first embodiment described above. In this embodiment, characteristic data unique to the prepaid card is used. In order to obtain, the variation in the modulation signal amplitude of the magnetic information due to the uneven portion formed at random in the corresponding portion of the prepaid card is used instead of the variation in the ink amount due to printing.

The prepaid card used in this prepaid card system will be described with reference to FIG. Figure 1
As shown in FIG. 6, the prepaid card PC1 has a magnetic information storage unit DA using a magnetic layer, and the information storage unit D
A has a first information area TA and a second information area TB. The first information area TA is the prepaid card P
The variable information ta that can be updated at any time due to consumption of C1 or the like is stored. Quantized data Rr as characteristic information is written as variable information ta in the left end portion of the information area TA in the figure, for example.

At the left end portion of the second information area TB, for example, in the figure, the prepaid card PC1 is processed by some method.
The concave and convex portion P is formed on itself and on the magnetic layer for magnetic recording. In the second information area TB, a prepaid card PC
The variable information tb that can be updated at any time due to consumption of 1 or the like is stored. For example, the quantized data Rr obtained by quantizing the magnetic reproduction waveform of the initial information recorded at the left end of the information area TB in the figure as characteristic data Ro is written as the variable information ta at the left end of the first information area TA, for example. Be done. The characteristic data Ro based on the magnetic reproduction waveform has a waveform peculiar to the prepaid card PC1 because the stored information which is the variable information tb in advance varies due to the uneven portion P in the process of recording and reproduction.
Further, the function data Rf obtained by calculating the quantized data Rr by a constant function such as a one-way function is written in the information area TA, and the area where the function data Rf exists corresponds to the balance range of the prepaid card PC1. is doing. First
The quantized data Rr of the information area TA is not updated when the balance information or the like is updated by the reading device 1.

The function data Rf (Rf ') written in the variable information tb in the second information area TB is the characteristic data Ro.
Is the information obtained by calculating the quantized data obtained by quantizing the reproduction information of 1. by a predetermined function by a predetermined function. The area of the function data Rf 'corresponds to the remaining amount of the prepaid card PC1, and as the remaining amount decreases due to consumption, for example, the random data is gradually overwritten or the function data is erased from the right end side in the drawing. Function data R
The area of f'is reduced. It is assumed that the function data Rf ′ is data that can be compared with the initial data Rf to determine the size of the remaining function data area.

That is, the second information area TB stores the corresponding remaining amount of the function data Rf each time the amount information is updated, each time the remaining amount obtained as the update result becomes a new remaining amount range, when updating the amount information. Random data or erase data (no signal data), for example, is written in the portion corresponding to the surplus balance range as consumed data that can be distinguished from the initial state.

Quantized data of these characteristic information and other balance information of consumed data, card identification information (card ID) of the prepaid card PC1, manufacturer code indicating the manufacturer, manufacturing date (encoding date) information, and error occurrence time. Error codes in the information area TA and TB
It is recorded in another part of the or other information area provided separately. Even if such a prepaid card PC1 is used, it is possible to detect an unauthorized card using the unique information as in the first embodiment described above.

In this case, in order to form the uneven portion P,
Concavities and convexities may be formed on the magnetic coating roller so that coating unevenness may occur during magnetic coating of the magnetic layer during the manufacture of the prepaid card PC1. If such a coating roller is used and the rotation start position is not fixed and the rotation is set to start at a random position, the uneven portion peculiar to each manufactured prepaid card PC1 is formed. It becomes possible to form P. Instead of forming the uneven portion P only on the magnetic layer, the uneven portion P is collectively formed on the base material and the magnetic layer on the prepaid card PC1.
May be formed. Further, the recording device 3 may be provided with a means for forming such an uneven portion P. Next, FIG. 17 shows the configuration of a prepaid card used in the prepaid card system according to the third embodiment of the present invention.

The configuration of the prepaid card system according to the third embodiment of the present invention is almost the same as that of the prepaid card system according to the first embodiment described above, and in this embodiment, it is unique to the prepaid card. In order to obtain the characteristic data, the variation in the magnetic information noise due to the noise source randomly formed on the prepaid card is used instead of the variation in the ink amount due to printing.

The prepaid card used in this prepaid card system will be described with reference to FIG. Figure 1
As shown in FIG. 7, the prepaid card PC2 has a magnetic information storage unit DA using a magnetic layer, and the information storage unit D
A has a first information area TA and a second information area TB. The first information area TA is the prepaid card P
The variable information ta that can be updated at any time due to C2 consumption or the like is stored. Quantized data Rr as characteristic information is written as variable information ta in the left end portion of the information area TA in the figure, for example.

At the left end portion of the second information area TB, for example, in the figure, the prepaid card PC2 is processed by some method.
A noise source N is formed on itself and on the magnetic layer for magnetic recording. In the second information area TB, the prepaid card P
The variable information tb that can be updated at any time due to consumption of C2 or the like is stored. For example, the quantized data Rr obtained by quantizing the magnetic reproduction waveform at the left end in the figure of the information area TB as the characteristic data Ro is the first information area TA as the variable information ta.
For example, it is written on the left end. Since the characteristic data Ro based on the magnetic reproduction waveform of noise varies depending on the distribution of the noise source N, the characteristic data Ro has a waveform unique to the prepaid card PC2. Further, the function data Rf obtained by operating the quantized data Rr with a constant function such as a one-way function is the information area TA.
The area in which the function data Rf is written corresponds to the balance range of the prepaid card PC2.
The quantized data Rr of the first information area TA is the reading device 1
Do not update when the balance information etc. is updated by.

The function data Rf (Rf ') written in the variable information tb of the second information area TB is the quantized data Rr obtained by quantizing the characteristic data Ro consisting of the reproduction information by the predetermined quantization method. It is the information calculated by the function. The area of the function data Rf ′ corresponds to the remaining amount of the prepaid card PC2, and as the remaining amount decreases due to consumption, for example, the random data is gradually overwritten or the function data is erased from the right end side in the drawing, The area of the function data Rf 'is reduced. Function data R
It is assumed that f ′ is data that can be compared with the initial data Rf to determine the size of the remaining function data area. That is, in the second information area TB, when updating the money amount information and the like, each time the update is performed, the remaining amount obtained as an update result becomes a new remaining amount range, and the remaining amount range that exceeds the corresponding remaining amount in the function data Rf. To the part corresponding to
As consumed data that can be distinguished from the initial state, for example, random data or erase data (no signal data) is written.

Quantized data of these characteristic information and other balance information of consumed data, card identification information (card ID) of the prepaid card PC, manufacturer code indicating manufacturer,
The manufacturing date (encoding date) information, an error code when an error occurs, and the like are recorded in other parts of these information areas TA and TB or in an information area provided separately. Even if such a prepaid card PC2 is used, it is possible to detect an unauthorized card using the unique information as in the first embodiment described above.

In this case, the noise source N is generated due to impurities, nonuniformity, and the like in the magnetic coating of the magnetic layer when the prepaid card PC2 is manufactured. Furthermore, FIG.
As shown in, by forming a scratch Ns that becomes a noise source in addition to the normal noise source N during magnetic coating or encoding, the prepaid card PC3 in which the noise source N is positively formed can be obtained. Such a scratch Ns
In order to generate, the prepaid card medium may be processed by a scratching roller having a card scratching portion. If such a scratch roller is used so that the rotation start position is not fixed and the rotation is started from a random position, the noise source N unique to each manufactured prepaid card PC3 is generated. And Ns can be formed. Further, such a scratch roller may be provided in the recording device 3. In the third embodiment, since the noise source N or Ns itself serves as a signal source, there is an advantage that it is not necessary to separately write information in the detection location of the characteristic data Ro.

In the above description, a prepaid card using a magnetic card medium for magnetically recording information such as money amount information on the entire magnetic layer has been described as an example of the prepaid card medium. It is not limited to the medium. For example, a card medium for magnetically recording information on a magnetic stripe pasted on a card, a so-called IC card medium in which an IC (integrated circuit) chip such as a memory is embedded on the card and information is stored in the IC chip, or these The present invention can be implemented in the same manner as described above for a prepaid card using a card medium or the like, which is appropriately combined, as a prepaid card medium.

The card used in this system is
It may be a no-value card that does not store the amount information. In this case, for example, the amount information for each user is managed at the center, etc., and when the card is used, the information (card ID, etc.) that can identify the user stored in the card is used as a key to access the center, etc. You may make it perform the process which draws out a predetermined amount of money with respect to the amount information of a corresponding user.

The prepaid card system of the present invention can be realized by using an ordinary computer system without being constructed as a dedicated prepaid card system. For example, by installing the program in a computer system from a medium (a floppy disk, a CD-ROM, etc.) storing the program for executing the above operation, a system for executing the above processing can be constructed. By the installation, the program is stored in a medium such as a hard disk in the computer system, configures the system, and is used for execution. Further, the medium for supplying the program to the computer is not limited to a storage medium in a narrow sense, but may be a communication medium such as a communication line, a communication network, and a communication system that temporarily and fluidly holds information such as a program. It may be a storage medium in a broad sense including.

For example, the program may be registered in an FTP (File Transfer Protocol) server provided on a communication network such as the Internet and distributed to the FTP client via the network, or an electronic bulletin board (BBS: Bulletin) of the communication network. The program may be registered in the Board System) or the like and distributed via a network. Then start this program and
By executing under the control of (Operating System), the above-mentioned processing can be achieved. Further, the above-described processing can be achieved by activating and executing the program while transferring the program through the communication network.

[0088]

As described above, according to the present invention,
Prepaid that enables accurate detection of fraud attempting to copy and use the stored information of a genuine prepaid card on a falsified or forged prepaid card medium, and eliminate unauthorized use of the prepaid card due to falsification or forgery. A card system, a reading device, and a card discriminating method can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram schematically showing a configuration of a prepaid card system according to a first embodiment of the present invention.

FIG. 2 is a diagram schematically showing stored contents of a prepaid card used in the prepaid card system of FIG.

3 is a block diagram schematically showing a configuration of a reading device in the prepaid card system of FIG.

FIG. 4 is a block diagram schematically showing the configuration of a recording device in the prepaid card system of FIG.

5 is a flowchart for explaining an encoding process in the prepaid card system of FIG.

FIG. 6 is a flowchart for explaining a consumption process in the prepaid card system of FIG.

7 is a flow chart for explaining a card check process in the prepaid card system of FIG.

FIG. 8 is a flowchart for explaining a termination process in the prepaid card system of FIG.

9 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

10 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

11 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

12 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

13 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

14 is a diagram schematically showing the operation of the prepaid card for explaining the operation of the prepaid card system of FIG.

15 is a diagram schematically illustrating a storage form in another example of the prepaid card used in the prepaid card system in FIG.

FIG. 16 is a diagram schematically illustrating a storage form of a prepaid card used in the second embodiment of the prepaid card system according to the present invention.

FIG. 17 is a diagram schematically illustrating a storage form of a prepaid card used in the third embodiment of the prepaid card system according to the present invention.

FIG. 18 is a diagram schematically illustrating a storage form of a prepaid card used in another example of the third embodiment of the prepaid card system according to the present invention.

[Explanation of symbols]

1 reading device 2 relay devices 3 recording devices 4 settlement center 11 Communication processing unit 12 Consumption processing unit 13 Storage 14 Reader / Writer 15 Check control unit 31 Encoding control unit 32 memory 33 Reader / Writer 34 Check Information Processing Department PC, PC1, PC2, PC3 Prepaid card D card issuer S store

─────────────────────────────────────────────────── ─── Continued Front Page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06K 17/00 G06K 19/00-19/18 G07F 7/08 B42D 15/10

Claims (11)

(57) [Claims] 1. A printer having a plurality of magnetic information storage areas.
Prepaid card system that makes financial payments with a pay card
In Temu, magnetic parts which printing is performed of the first information storage area
Apply a function to the quantized data obtained by quantizing the regenerated waveform.
The function data obtained by the above is stored in the first information storage area.
Then, store the quantized data in the second information storage area.
The recording means for issuing and the magnetic reproduction waveform of the printed portion are detected.
Quantization and quantization stored in the second information storage area
When it does not match when compared with the data, or when the quantization data
Calculation result of applying a function to the data and the first information storage area
Balance information by comparing with the function data stored in the area
Stored in any of the plurality of information storage areas
Match the amount of money information, and if they do not match, detect fraud
A prepaid card system comprising: a reading means for reading . 2. A printer having a plurality of magnetic information storage areas.
Prepaid card system that makes financial payments with a pay card
In Temu, site uneven portion of the first information storage area is formed
Function on quantized data obtained by quantizing the magnetic reproduction waveform of
The function data obtained by the above is stored in the first information storage area.
Store the quantized data in the second information storage area
And the magnetic reproducing waveform of the portion where the uneven portion is formed are detected.
Quantized and stored in the second information storage area
When it does not match when compared with the sub-data, or the quantization
The calculation result of applying a function to the data and the first information record
Balance information by comparing with the function data stored in the memory area
Stored in any of the plurality of information storage areas
Match the amount of money information that is present, and if it does not match, detect fraud
A prepaid card system, which comprises: 3. A printer having a plurality of magnetic information storage areas.
Prepaid card system that makes financial payments with a pay card
In the system, a noise source is formed in the magnetic layer of the first information storage area.
Function on the quantized data obtained by quantizing the magnetic reproduction waveform of the
Function data obtained by operating the first information storage
Area and stores the quantized data in a second information storage area.
And a magnetic reproducing waveform of a portion of the magnetic layer where a noise source is formed.
Detected and quantized and stored in the second information storage area.
When it does not match the quantized data, or
The calculation result of applying a function to the quantized data and the first
Balance by comparing the function data stored in the information storage area
Information is obtained and stored in any of the plurality of information storage areas.
Check the amount information that is stored, and if it does not match,
A prepaid card system comprising: a reading means for detecting . 4. A printer having a plurality of magnetic information storage areas.
A reading device for processing a pay card, wherein the magnetic field of the printed portion of the first information storage area is used.
Reproduced waveform is detected and regenerated, and the above-mentioned printing is performed.
Quantized data obtained by detecting and reproducing the magnetically reproduced waveform of the
Data stored in the second information storage area in advance.
Data, and obtained by applying a function to the quantized data.
Function data that is stored in advance in the first information storage area
And the reader / writer means for reading data that is, the quantized data to which the reader / writer means read
And the magnetic reproduction waveform of the printed part is detected.
Match the raw and quantized data, and
Calculation result of applying a function to the data and the first information storage area
Balance information by comparing with the function data stored in the area
Stored in any of the plurality of information storage areas
Matches with the amount of money information
And a check control unit for detecting the . 5. A printer having a plurality of magnetic information storage areas.
A reading device for processing a pay card, where the uneven portion is formed in the first information storage area
The magnetic reproduction waveform of is detected and reproduced, and the uneven portion is formed.
It was obtained by detecting and reproducing the magnetic reproduction waveform of the part
The quantized data is stored in the second information storage area in advance.
Applied a function to the generated data and the quantized data
The obtained function data is the first information storage area in advance.
Reader / writer hands reading the data stored in the memory
And the quantized data read by the reader / writer means.
And the magnetic reproduction waveform of the part where the uneven part is formed is detected.
Output and reproduced and collated with the quantized data,
The calculation result of applying a function to the data and the first information record
Balance information by comparing with the function data stored in the memory area
Stored in any of the plurality of information storage areas
Check the amount of money information that is present, and if either does not match, do not
A reading device , comprising: a check control unit that detects positiveness . 6. A printer having a plurality of magnetic information storage areas.
A reading device for processing a pay card, which is a part of a first information storage area where a noise source is formed.
Detects and reproduces the magnetic reproduction waveform, and the noise source is formed.
Quantum obtained by detecting and reproducing the magnetic reproduction waveform of the
Data that has been stored in advance in the second information storage area
Obtained by applying a function to the data and the quantized data
Function data to be stored in the first information storage area in advance.
Reader / writer means for reading stored data
And the quantized data read by the reader / writer means
And the magnetic reproduction waveform of the part where the noise source is formed
Detected and reproduced and collated with the quantized data,
Result of applying a function to generalized data and the first information
The balance information is compared with the function data stored in the storage area.
Information and stored in any of the plurality of information storage areas
If you do not match any of the
A reading device , comprising: a check control unit that detects fraud . 7. The reading device, when not detecting fraud, stores information according to a consumption amount.
Equipped with consumption processing means for updating the amount information stored in the area
The method according to any one of claims 4 to 6, characterized in that
On-board reading device. 8. The consumption processing means , based on the updated amount of money, of the first information storage area.
Consumption data on the function data in the area according to the consumption amount
Overwriting the size of the function data area to the balance
The reading device according to claim 7, wherein the reading device corresponds to the reading device.
Place 9. A printer having a plurality of magnetic information storage areas.
Prepaid card system that makes financial payments with a pay card
A method for discriminating a card in a system, in which the magnetic field of the printed portion of the first information storage area is
Apply a function to the quantized data obtained by quantizing the regenerated waveform.
The function data obtained by the above is stored in the first information storage area.
Then, store the quantized data in the second information storage area.
The step of issuing and detecting the magnetic reproduction waveform of the printed part
Quantization and quantization stored in the second information storage area
When it does not match when compared with the data, or when the quantization data
Calculation result of applying a function to the data and the first information storage area
Balance information by comparing with the function data stored in the area
Stored in any of the plurality of information storage areas
Match the amount of money information, and if they do not match, detect fraud
A method for discriminating a card, comprising: 10. A program having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a prepaid card.
A method of discriminating a card in a stem, wherein a portion of the first information storage area where an uneven portion is formed
Function on quantized data obtained by quantizing the magnetic reproduction waveform of
The function data obtained by the above is stored in the first information storage area.
Store the quantized data in the second information storage area
And the magnetic reproduction waveform of the portion where the uneven portion is formed is detected.
Quantized and stored in the second information storage area
When it does not match when compared with the sub-data, or the quantization
The calculation result of applying a function to the data and the first information record
Balance information by comparing with the function data stored in the memory area
Stored in any of the plurality of information storage areas
Match the amount of money information that is present
A method of discriminating a card, comprising: 11. A program having a plurality of magnetic information storage areas.
A prepaid card system that makes financial payments with a prepaid card.
A method of discriminating a card in a system, wherein a noise source is formed in the magnetic layer of the first information storage area.
Function on the quantized data obtained by quantizing the magnetic reproduction waveform of the
Function data obtained by operating the first information storage
Area and stores the quantized data in a second information storage area.
And the step of issuing to the magnetic reproduction waveform of the portion where the noise source is formed in the magnetic layer.
Detected and quantized and stored in the second information storage area.
When it does not match the quantized data, or
The calculation result of applying a function to the quantized data and the first
Balance by comparing the function data stored in the information storage area
Information is obtained and stored in any of the plurality of information storage areas.
Check the amount information that is stored, and if it does not match,
A card discriminating method comprising: a reading step of detecting .