JP2021131615A - Automatic teller machine, preventive rewriting method, and program - Google Patents

Abstract

To provide an automatic teller machine that can reduce a burden of a counter service by effectively rewriting a magnetic stripe with attenuated magnetic output.SOLUTION: An automatic teller machine having a magnetic card device that reads and writes information of a magnetic stripe of a card by a magnetic head, includes: a jitter evaluation unit that evaluates jitters indicating time variation of magnetic output read by the magnetic head; a magnetic output evaluation unit that evaluates a level of the read magnetic output; and a writing determination unit that determines whether or not to rewrite the information of the read magnetic stripe to the magnetic stripe by dividing it into a plurality of patterns based on the evaluation of the jitters by the jitter evaluation unit and the evaluation of the level of the magnetic output by the magnetic output evaluation unit. The magnetic head writes the information of the magnetic stripe to the magnetic stripe based on the patterns determined by the writing determination unit, or returns the card without writing.SELECTED DRAWING: Figure 6

Description

The present invention relates to an automated teller machine, a preventive rewriting method, and a program.

With magnetic cards and passbooks on the market, the magnetism of the magnetic stripe is attenuated by approaching / contacting an external magnet, and reading with a magnetic card device may result in an error. In particular, recently, many electronic devices such as smartphones / tablets around us and products with built-in magnets in their cases have been distributed, and the risk of magnetic attenuation (destruction) is increasing. As a specific example, there are some cases where a card magnetically attenuated by an automated teller machine (ATM) or the like becomes untransactionable and develops into a complaint at a branch office of a financial institution or the like.

As one of the countermeasures, a technique has been proposed in which the data read from the magnetic stripe is rewritten on the magnetic stripe whose output is attenuated to restore the magnetic output (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-318414

However, magnetically attenuated cards are often unstable in reading, so there is a risk of misreading the data. At the time of rewriting, the data based on the read data is recorded on the magnetic stripe, so if the read data is incorrect, the incorrect data will be recorded. If you use this card, an error will be judged. In addition, if the output is attenuated due to poor physical condition of the card itself such as deformation, scratches, or sticking of a sticker, there is a high possibility that normal recording cannot be performed even if the card is rewritten.

As described above, when the magnetic output is greatly attenuated, even if the card is uniformly rewritten, the magnetic output cannot always be restored to a normal level. On the other hand, if the magnetically attenuated card is uniformly restored at a bank counter or the like, the burden on the counter business will increase and there is a risk that the bank business will be hindered.

In view of the above problems, an object of the present invention is to provide an automated teller machine capable of reducing the burden of counter operations by effectively rewriting a magnetic stripe whose magnetic output has been attenuated.

In order to achieve the above object, the present invention determines the time variation of the magnetic output read by the magnetic head in an automatic trading device having a magnetic card device that reads and writes information on the magnetic stripe of the card by the magnetic head. Based on a jitter evaluation unit that evaluates the indicated jitter, a magnetic output evaluation unit that evaluates the read magnetic output level, a jitter evaluation by the jitter evaluation unit, and an evaluation of the magnetic output level by the magnetic output evaluation unit. The magnetic head is provided with a write determination unit that determines whether or not to rewrite the read magnetic stripe information to the magnetic stripe by dividing it into a plurality of patterns, and the magnetic head has the pattern determined by the write determination unit. It is characterized in that the information of the magnetic stripe is written in the magnetic stripe based on the above, or the card is returned without writing.

Further, the present invention is a preventive rewriting method of an automatic trading device having a magnetic card device that reads and writes information on a magnetic stripe of a card by a magnetic head, and a jitter indicating a time variation of the magnetic output read by the magnetic head. Is evaluated, the level of the read magnetic output is evaluated, and based on the evaluation of the jitter and the evaluation of the level of the magnetic output, whether or not to rewrite the information of the read magnetic stripe to the magnetic stripe is determined. It is characterized in that the determination is made by dividing into a plurality of patterns, and the information of the magnetic stripe is written in the magnetic stripe based on the determined pattern, or the card is returned without writing.

Further, according to the present invention, in a program for causing a computer of an automatic trading device having a magnetic card device to read and write information on a magnetic stripe of a card by a magnetic head, the time variation of the magnetic output read by the magnetic head is changed. Whether to evaluate the indicated jitter, evaluate the level of the read magnetic output, and rewrite the read magnetic stripe information to the magnetic stripe based on the evaluation of the jitter and the evaluation of the level of the magnetic output. It is characterized in that it is determined by dividing into a plurality of patterns, and the information of the magnetic stripe is written in the magnetic stripe based on the determined pattern, or the card is returned without writing.

According to the present invention, the burden on the counter work can be reduced by effectively rewriting the magnetic stripe whose magnetic output is attenuated.

It is a block diagram which shows the configuration example of the automatic trading apparatus equipped with the magnetic card apparatus of this embodiment. It is a block diagram which shows the structural example of a card receipt unit. It is a block diagram concerning a reading function and a writing function of MS. It is a block diagram which shows the hardware composition of the unit management part and each control part of a card receipt unit. It is a flowchart explaining the procedure of the preventive rewrite processing. It is a flowchart explaining the procedure of a card check process. It is a figure which shows an example of the card confirmation screen displayed on the display unit. It is a figure which shows an example of the window guidance screen displayed on the display unit. It is a figure which shows an example of the determination result table stored in the storage part. It is a flowchart explaining the procedure of the rewriting process by magnetic attenuation. It is a figure which shows an example of the attenuation restoration confirmation screen displayed on the display unit. It is a figure which shows an example of the window guidance screen displayed on the display unit.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, an example in which the magnetic card device of the present embodiment is mounted on an automated teller machine installed in a financial institution will be described.

FIG. 1 is a block diagram showing a configuration example of an automated teller machine 1 equipped with the magnetic card reading / writing device of the present embodiment. The automatic teller machine 1 receives a card on which predetermined data is recorded and performs a rewriting process by magnetic attenuation. The automated teller machine 1 is installed in stores such as banks and other financial institutions, and conducts transactions such as deposits and withdrawals based on customer operations.

In the automatic teller machine 1, the operator inserts the card into the insertion slot according to the operation guidance display, inputs the personal identification number on the keyboard or touch panel, communicates with the host computer 2 via the network N, and confirms that he / she is the person himself / herself. After that, transactions such as cash deposit, withdrawal, and transfer are performed. note that. Hereinafter, the magnetic card and the magnetic card with an IC chip are collectively referred to as a card.

The automated teller machine 1 includes a main control unit 10, a card receipt unit 20, a passbook unit 30, a banknote unit 40, a coin unit 50, and a display unit 60. The main control unit 10 is a control unit that comprehensively controls the entire automated teller machine 1. The card receipt unit 20 includes a card processing device that reads / writes information (magnetic stripe or IC memory) recorded on the card, and a receipt printing device that prints and issues receipts.

The passbook unit 30 includes a reading device (not shown) that reads data from the MS (Magnetic Stripe) of the inserted passbook, and a printer device (not shown) that prints transaction details on the passbook. The banknote unit 40 conveys the deposited banknotes and stores them in the banknote cassette, and then conveys the banknotes from the banknote cassette and withdraws them. The coin unit 50 stores the deposited coins in the coin cassette and withdraws the coins from the coin cassette. The display unit 60 has a display unit and a touch panel, displays an operation guide and transaction details to the customer, and receives an operation input from the customer on the touch panel.

FIG. 2 is a block diagram showing a configuration example of the card receipt unit 20. The card receipt unit 20 includes a unit management unit 100, a communication unit 110, a storage unit 120, a card R / W mechanical control unit 130, a card R / W mechanism 140, a magnetic head control unit 150, a magnetic head circuit unit 180, and an IC card R. It has a / W control unit 200, a contact unit 210, a receipt printer control unit 220, and a receipt printer mechanism 230. The magnetic card device is composed of a unit management unit 100, a communication unit 110, a storage unit 120, a card R / W mechanical control unit 130, a card R / W mechanism 140, a magnetic head control unit 150, and a magnetic head circuit unit 180.

The unit management unit 100 controls the entire card receipt unit 20. The communication unit 110 controls the exchange of data between the main control unit 10 and the unit management unit 100. The storage unit 120 stores a control program, various data, and a table.

The card R / W mechanical control unit 130 controls the card R / W mechanical 140 to control the transfer of cards. The card R / W mechanism 140 includes a motor for transporting the card, a magnet for switching the transport roller, a sensor for detecting the card transport position and speed, and the like.

The magnetic head control unit 150 controls the magnetic head circuit unit 180 to read data from the MS of the card and write data to the MS. Further, the magnetic head control unit 150 decodes the read magnetic output to generate read data. Further, the magnetic head control unit 150 performs a rewriting process (also referred to as preventive rewriting) to the MS.

The magnetic head circuit unit 180 includes a magnetic head, a peak detection circuit, a magnetic output detection circuit, a timer circuit, and a light data output circuit. The magnetic head control unit 150 and the magnetic head circuit unit 180 will be described in detail with reference to FIG.

When the card used is a card with an IC chip, the IC card R / W control unit 200 reads the IC data built in the card by the contact unit 210. As the contact portion 210, an IC contact portion and a SAM (Secure Application Module) contact portion are provided.

The receipt printer control unit 220 controls the motor and printer (ink ribbon and thermal printer) of the receipt printer mechanism 230 to convey and print paper.

FIG. 3 is a block diagram relating to the reading function and the writing function of the MS. As described above, the magnetic head circuit unit 180 includes a magnetic head 181, a peak detection circuit 182, a magnetic output detection circuit 183, a timer circuit 184, and a light data output circuit 185.

The magnetic head 181 reads and writes to the MS, and is, for example, a ring head. The peak detection circuit 182 is a circuit that detects the peak of the magnetic output waveform output from the magnetic head 181 and amplified. The peak detection circuit 182 notifies the MS read interrupt processing unit 151, which will be described later, of peak detection.

The magnetic output detection circuit 183 is a circuit that detects the peak level of the magnetic output waveform. The magnetic output detection circuit 183 notifies the MS read interrupt processing unit 151, which will be described later, of the peak level of the magnetic output waveform. In the following, the peak level of the magnetic output waveform is also referred to as the magnetic output level.

When the peak detection interrupt occurs in the MS read interrupt processing unit 151, the timer circuit 184 reads the counter value and notifies the MS read interrupt processing unit 151 of the counter value. The write data output circuit 185 outputs a write signal to the magnetic head 181 when writing data to the MS.

The magnetic head control unit 150 includes an MS read interrupt processing unit 151, an MS read processing unit 160, an MS write processing unit 170, and an MS write interrupt processing unit 172. The MS read interrupt processing unit 151 receives the peak detection notification from the peak detection circuit 182 and performs interrupt processing.

The MS read interrupt processing unit 151 includes a peak interval calculation unit 152 and a magnetic output reading unit 153. The peak interval calculation unit 152 calculates the time between peaks of the magnetic output. The peak interval calculation unit 152 stores the calculated peak interval in the peak interval buffer 121 of the storage unit 120. For example, 1536 peak interval buffers 121 are set.

The magnetic output reading unit 153 reads the level of the magnetic output. The magnetic output reading unit 153 stores the read magnetic output level in the magnetic output level buffer 122 of the storage unit 120. For example, 1536 magnetic output level buffers 122 are set.

The MS read processing unit 160 processes data read from the MS stored in the peak interval buffer 121 and the magnetic output level buffer 122 to generate read data. Further, the MS read processing unit 160 determines whether or not preventive writing is necessary.

The MS read processing unit 160 includes a jitter evaluation unit 161, a magnetic output evaluation unit 162, a 0/1 conversion unit 163, a read data editing unit 164, a read data result determination unit 165, and a write determination unit 166.

The jitter evaluation unit 161 reads the peak interval from the peak interval buffer 121, calculates the jitter which is the time variation of the magnetic output peak, and evaluates it. The magnetic output evaluation unit 162 reads the magnetic output level from the magnetic output level buffer 122 and evaluates it.

The 0/1 conversion unit 163 reads the stored value of the peak interval buffer 121 and the stored value of the magnetic output level buffer 122, and converts the value to the logical value 0/1. The read data editing unit 164 stores the logical value 0/1 converted by the 0/1 conversion unit 163 in the storage unit 120 as read data 123. The read data result determination unit 165 reads the read data 123, checks the vertical parity and the horizontal parity, determines whether or not the read has been performed normally, and stores the read result 124 in the storage unit 120.

The writing determination unit 166 determines whether or not preventive rewriting is necessary. The preventive rewriting is a process of writing information again to the MS whose magnetic output is attenuated and recovering the magnetic output.
Specifically, whether the write determination unit 166 rewrites the read magnetic stripe information to the magnetic stripe based on the evaluation of the jitter by the jitter evaluation unit 161 and the evaluation of the magnetic output level by the magnetic output evaluation unit 162. Whether or not to rewrite the preventive rewrite is judged by dividing it into multiple patterns.

The writing determination unit 166 determines the necessity of preventive rewriting according to the magnetic output level and the jitter with reference to the necessity determination table 125 of the storage unit 120. The writing determination unit 166 stores the determined prevention rewriting necessity 126 in the storage unit 120.

When the write determination unit 166 determines that preventive rewriting is necessary, the MS write processing unit 170 creates write data 127 for writing to the MS from the read data 123 of the storage unit 120, and causes the storage unit 120 to create write data 127. Store.

The MS write interrupt processing unit 172 reads the write data 127, performs predetermined conversion (for example, frequency modulation), and outputs the write data to the light data output circuit 185. The write data output circuit 185 outputs a write signal to the magnetic head 181. The magnetic head 181 is moved at a predetermined speed by the card R / W mechanical control unit 130, and data is rewritten to the MS of the card.

FIG. 4 shows the hardware of the unit management unit 100 of the card receipt unit 20 and each control unit (card R / W mechanical control unit 130, magnetic head control unit 150, IC card R / W control unit 200, receipt printer control unit 220). It is a block diagram which shows the wear configuration.

The card receipt unit 20 is provided with a CPU (Central Processing Unit) 300, a RAM (Random Access Memory) 302, a ROM (Read Only memory) 304, a bus 306, a communication unit 110, and a storage unit 120.

The CPU 300 reads a control program from the ROM 304 and executes various control processes according to the read control program. The RAM 302 is a work area for temporarily storing a control program and various data. The RAM 302 is, for example, a DRAM (Dynamic Random Access Memory). The ROM 304 is a non-volatile storage unit that stores control programs, various data, and the like. ROM 304 is, for example, firmware. The CPU 300 is connected to the RAM 302, the ROM 304, etc. by the bus 306. The communication unit 110 and the storage unit 120 are as described above. The storage unit 120 is, for example, a flash memory.

That is, the unit management unit 100 and each control unit (card R / W mechanical control unit 130, magnetic head control unit 150, IC card R / W control unit 200, receipt printer control unit 220) are realized by software processing by the CPU 300 or the like. Will be done.

Next, the preventive rewriting process for MS of the card will be specifically described. FIG. 5 is a flowchart illustrating the procedure of the preventive rewriting process. The preventive rewriting process is mainly executed by the unit management unit 100, the card R / W mechanical control unit 130, and the magnetic head control unit 150.

The unit management unit 100 detects the card insertion from the customer by a card sensor (not shown), and when the card insertion is detected, the unit management unit 100 pulls the card into the automatic teller machine 1 and accepts the card insertion (step S11). The magnetic head control unit 150 reads the magnetic data (MS) of the card (step S12). The read data editing unit 164 stores the read data 123. Since the process of storing the read data 123 is the same as the technique described in Japanese Patent Application Laid-Open No. 2019-160366, the description thereof will be omitted.

The read data result determination unit 165 determines whether or not the read has been performed normally by performing a parity check or the like on the read data 123 (step S13). The determination of whether or not the reading has been performed normally is the same as the technique described in Japanese Patent Application Laid-Open No. 2019-160366, and thus the description thereof will be omitted.

When the magnetic head control unit 150 determines that the read has been performed normally by the read data result determination unit 165 (YES in step S13), the write determination unit 166 refers to the preventive rewriting necessity determination table 125 and refers to the card. Check processing is performed (step S14).

FIG. 7 of JP-A-2019-160366 is an example of the preventive rewriting necessity determination table 125. As described above, the write determination unit 166 determines whether or not preventive rewriting is necessary for the card determined to have been read normally according to the magnetic output level and jitter of the read MS. In this example, the write determination unit 166 determines whether or not preventive rewriting is necessary based on a total of four conditions of "magnetic output level", "number of consecutive magnetic output reductions", "jitter", and "additional condition (# 1)". An example of doing so will be described.

The magnetic output evaluation unit 162 evaluates the "magnetic output level" and the "number of continuous output reductions". The jitter evaluation unit 161 evaluates the "jitter" of the magnetic output. Then, the writing determination unit 166 evaluates the "additional condition (# 1)".

The necessity determination table 125 is composed of items of patterns 1 to 6. The items of patterns 1 to 6 constituting the necessity determination table 125 are the same as the configurations of Nos. 1 to No. 6 described in the necessity determination table 125 of JP-A-2019-160366, and thus the description will be simplified.

Pattern 1: When the magnetic output level is ± 70% or more, the write determination unit 166 determines that the card is normal regardless of other conditions.

Pattern 2: The write determination unit 166 determines that the card has a limit of magnetic attenuation when the magnetic output level is less than ± 5% in one or more places. ± 5% is an example of a read limit value. When the magnetic output level is equal to or lower than the read limit, there is a possibility of erroneous reading even if the read data result determination unit 165 determines that the read is normal.

Pattern 3: The writing determination unit 166 determines that the card has a scratch on the MS when the magnetic output level is ± 5% to 70% at one place or more and the number of continuous magnetic output reductions is less than 25 times. ..

Pattern 4: When the write determination unit 166 has one or more places where the magnetic output level is ± 5% to 70%, the number of continuous output reductions is 25 times or more, and the jitter is ± 150% or more. , Judge as a card that may be misread.

Pattern 5: The write determination unit 166 has one or more places where the magnetic output level is ± 5% to 70%, the number of continuous output reductions is 25 times or more, the jitter is less than ± 150%, and additional conditions. If is satisfied, it is determined that the tape is attached to the MS of the card.

Pattern 6: The write determination unit 166 has one or more places where the magnetic output level is ± 5% to 70%, the number of continuous output reductions is 25 times or more, the jitter is less than ± 150%, and the additional conditions are. If it is not satisfied, it is judged to be a magnetically attenuated card.

Next, the card check process executed in step S14 of FIG. 5 will be specifically described. FIG. 6 is a flowchart illustrating the procedure of the card check process. The card check process is mainly executed by the write determination unit 166.

The write determination unit 166 reads the magnetic data read in step S12 of FIG. 5 (step S20). The read data editing unit 164 stores the read magnetic data as read data 123 in the storage unit 120.

The writing determination unit 166 determines the pattern of magnetic attenuation based on the read magnetic data (step S21). The writing determination unit 166 stores the determination result of magnetic attenuation in the determination result table 128 of the storage unit 120. As a result of the determination in step S22, the write determination unit 166 determines whether or not the magnetic attenuation of the card is pattern 1 or pattern 5 (step 22).

When the magnetic attenuation of the card is pattern 1 or pattern 5 (YES in step S22), the write determination unit 166 determines whether the magnetic attenuation of the card is pattern 1, that is, whether the card is normal or not. Determine (step S23).

When the magnetic attenuation of the card is pattern 1, that is, when the card is determined to be normal (YES in step S23), the magnetic head control unit 150 executes a known card reading process for reading information from the MS of the card. Then (step S24), the card check process is completed.

When it is determined that the magnetic attenuation of the card is pattern 5, that is, the tape is attached to the MS of the card (NO in step S23), is the writing determination unit 166 determining the pattern 5 for the first time? It is determined whether or not (step S25). When the determination of the pattern 5 is the first time (YES in step S25), the display unit 60 displays the card confirmation screen 101, and the card R / W mechanical control unit 130 returns the card (step S26). ..

FIG. 7 is a diagram showing an example of the card confirmation screen 101 displayed on the display unit 60. On the card confirmation screen 101, a message is displayed to confirm the presence or absence of a sticker on the MS of the card and prompting the user to insert the card again. The operator who confirms the message can continue the transaction by the automatic teller machine 1 by peeling off the sticker attached to the card, and can reduce the work by the bank counter.

After returning the card, when the unit management unit 100 accepts the insertion of the card again (step S27), the process returns to step S20.

When the determination of the pattern 5 is the second time (NO in step S25), the display unit 60 displays the window guidance screen 102, and the card R / W mechanical control unit 130 returns the card (step S28). ..

FIG. 8 is a diagram showing an example of the window guidance screen 102 displayed on the display unit 60. On the window guidance screen 102, a message for guiding the operator to the window is displayed because the magnetism of the card cannot be read. The operator who confirms the message can grasp that the magnetism cannot be read. When this process is completed, the preventive rewriting process is completed.

The writing determination unit 166 determines whether or not the number of readings of the magnetic data read in step S20 is equal to or greater than the specified number of times (step S29). For example, the specified number of times can be set to three times. The specified number of times is not limited to three, and a plurality of times can be set.

The writing determination unit 166 determines the reading result based on the priority corresponding to the determined pattern (step S30).

FIG. 9 is a diagram showing an example of the determination result table 128 stored in the storage unit 120. The priority of the reading result is set in the order of pattern 1> pattern 6> pattern 2> pattern 4> pattern 3 = pattern 5.

For example, as result example 1, the first magnetic attenuation pattern determination result example is "2", the second magnetic attenuation pattern determination result example is "4", and the third magnetic attenuation pattern determination result example is "6". , The writing determination unit 166 determines the pattern "6" having the highest priority as the reading result.

Further, the writing determination unit 166 determines the pattern with the largest number of readings as the reading result of the pattern having the highest priority. For example, as result example 2, the first magnetic attenuation pattern determination result example is "2", the second magnetic attenuation pattern determination result example is "2", and the third magnetic attenuation pattern determination result example is "6". , The writing determination unit 166 determines the pattern "2" having the highest number of readings as the reading result of the pattern having the highest priority.

When the magnetic stripe information read when it is determined that the pattern is the same multiple times is the same, the magnetic head control unit 150 prioritizes the information of the magnetic stripe determined to be the same pattern. It may be judged that the pattern is high. This is because when the magnetic stripe information is the same, there is a high probability that the answer is correct.

The writing determination unit 166 determines whether or not the reading result determined in step S30 is any of "2", "4", and "6" (step S31). When the reading result determined in step S30 is any of "2", "4", and "6" (YES in step S31), the magnetic head control unit 150 reads information from the MS of the card, which is a known card reading. The process is executed (step S24), and the card check process is completed.

When the reading result determined in step S30 is "3" (NO in step S31), the display unit 60 displays the window guidance screen 102, and the card R / W mechanical control unit 130 returns the card. (Step S28). The operator who confirms the message displayed on the window guidance screen 102 can understand that he / she must go to the window because the magnetism cannot be read. When this process is completed, the preventive rewriting process is completed.

Returning to FIG. 5, the magnetic head control unit 150 performs transaction processing (step S15). In the transaction process, a transaction request message is transmitted to the host computer 2 based on the magnetic data read in the card check process, and the transaction request message is required from the host computer 2 in the transaction of the automatic teller machine 1 based on the transaction response message to the transaction request message. Information is sent and received.

The write determination unit 166 performs a rewrite process by magnetic attenuation (step S16). FIG. 10 is a flowchart illustrating a procedure of rewriting processing by magnetic attenuation. The rewriting process by magnetic attenuation is mainly executed by the write determination unit 166.

The writing determination unit 166 determines whether or not magnetic attenuation of the card is recognized by referring to the determination result stored in the determination result table 128 of the storage unit 120 (step S41). When the magnetic attenuation of the card is not recognized, that is, when the determination result of the magnetic attenuation pattern is determined to be "1" (NO in step S41), the rewriting process by magnetic attenuation is completed.

When the magnetic attenuation of the card is recognized, that is, when the determination result of the magnetic attenuation pattern is determined to be any of "3" and "6" (YES in step S41), the display unit 60 confirms the attenuation recovery. The screen 103 is displayed (step S42).

FIG. 11 is a diagram showing an example of the attenuation recovery confirmation screen 103 displayed on the display unit 60. On the attenuation restoration confirmation screen 103, a message that the magnetism of the card is attenuated but may be restored, and a "restore" button 201a and a "not restore" button 201b that accept the restoration instruction are displayed. The operator who confirms the message can try to restore the magnetism of the card by selecting the "recover" button 201a displayed on the attenuation restoration confirmation screen 103. By accepting the restoration of magnetism in the automatic teller machine 1, it is possible to continue the transaction by the automatic teller machine 1 and reduce the work by the bank counter.

When the restoration is not accepted, that is, when the "do not restore" button 201b displayed on the attenuation restoration confirmation screen 103 is selected (NO in step S43), the rewriting process by magnetic attenuation is completed.

When the restoration is accepted, that is, when the "restore" button 201a displayed on the attenuation restoration confirmation screen 103 is selected (YES in step S43), the MS light processing unit 170 performs the magnetic rewriting process (YES). Step S44). Specifically, the MS write processing unit 170 generates write data 127 based on the read data 123 corresponding to the pattern determined to have high priority in step S30 of FIG. The MS write interrupt processing unit 172 performs a predetermined conversion on the light data 127 and outputs the light data 127 to the light data output circuit 185 in synchronization with the timing of the magnetic head 181 transfer by the card R / W mechanical control unit 130. The write data output circuit 185 outputs a write signal to the magnetic head 181 to perform magnetic rewriting of the MS.

The magnetic head control unit 150 performs a magnetic rewrite confirmation process for confirming whether or not the magnetic data has been normally rewritten (step S45). When it is determined that the magnetic data has been normally rewritten (YES in step S46), the display unit 60 displays a normal card confirmation screen, and the card R / W mechanical control unit 130 returns the card. (Step S47). When this process is completed, the rewrite process due to magnetic attenuation is completed.

When it is determined that the magnetic data has not been normally rewritten (NO in step S46), the display unit 60 displays the window guidance screen 104, and the card R / W mechanical control unit 130 returns the card (NO). Step S48).

FIG. 12 is a diagram showing an example of the window guidance screen 104 displayed on the display unit 60. On the window guidance screen 102, a message for guiding the operator to the window is displayed because the magnetism of the card is attenuated. The operator who confirms the message can understand that he / she must go to the counter because the magnetism is attenuated. When this process is completed, the rewrite process due to magnetic attenuation is completed.

In the above-described embodiment, in step S42, the display unit 60 displays the attenuation recovery confirmation screen 103, but this is not the case. For example, in the rewriting process by magnetic attenuation in FIG. 10, the processes of steps S42 and S43 may be omitted.

Specifically, when the magnetic attenuation of the card is recognized, that is, when the determination result of the magnetic attenuation pattern is determined to be any of "3" and "6" (YES in step S41), the automatic operation is performed. Then, the magnetic rewriting process by the MS light processing unit 170 is executed (step S44). As a result, if the magnetism is attenuated without the operator being aware of it and there is a possibility that the magnetic data can be recovered, the magnetism of the MS is automatically restored. The burden can be reduced and the burden on the counter work can be reduced.

Further, the automatic teller machine 1 may transmit the read data to the host computer 2 to determine whether or not the magnetic attenuation of the card in step S41 is recognized, and the host computer 2 may make the determination. In this case, instead of the processing in step S41, when the display unit 60 determines that the determination result of the magnetic attenuation pattern is any of "2", "3", "4", and "6" (YES in step S41). ) Displays the attenuation recovery confirmation screen 103 (step S42). This is because it is certain if the host computer 2 determines whether the read data is normal based on the registered customer data. According to this, since the risk of misreading can be eliminated, rewriting can be performed even when the determination result of the magnetic attenuation pattern is "2" or "4".

Further, the magnetic card device of the present embodiment is not limited to the automatic teller machine, but can also be used as a credit card or point card processing device or a security device.

<Modification example>
In the above description, an example in which the card receipt unit 20 determines the necessity of rewriting processing due to magnetic attenuation has been described. However, the card receipt unit 20 may cooperate with the upper side (host computer / application software / middleware) to determine the necessity of rewriting processing by magnetic attenuation.

Further, a mechanism may be provided in which the firmware of the card receipt unit 20 detects magnetic attenuation and then notifies the upper host, and rewriting processing by magnetic attenuation may be performed with write permission from the upper host.

Further, although it has been explained that the unit management unit 100 and the magnetic head control unit 150 are realized by software processing by the CPU 300 or the like, the present invention is not limited to this. For example, a part or all of them may be configured by hardware such as a gate array.

<Effect>
According to the automated teller machine 1 of the present embodiment, it is determined whether or not to rewrite the magnetic stripe information to the MS by dividing it into a plurality of patterns, and the rewriting process is performed, so that the cost of reissuing the card and the like is required. And transaction loss can be reduced.

Specifically, since the jitter information is used to set a certain limit on the preventive writing function, the risk (card error) at the time of rewriting can be eliminated. That is, when the jitter is large, it is assumed that the condition of the card is bad (deformation / scratch / foreign matter adhesion, etc.), and there is a risk that the card that can be read at the last minute will be a defective card instead of being rewritten. Is.

The present invention is not limited to the above-described embodiment as it is, and the components can be modified and embodied within a range that does not deviate from the gist at the implementation stage. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, all the components shown in the embodiments may be combined as appropriate. In addition, components across different embodiments may be combined as appropriate. It goes without saying that various modifications and applications can be made without departing from the spirit of the invention.

1 Automatic trading device 10 Main control unit 20 Card receipt unit 30 Bankbook unit 40 Bill unit 50 Coin unit 60 Display unit 100 Unit management unit 110 Communication unit 120 Storage unit 121 Peak interval buffer 122 Magnetic output level buffer 123 Read data 124 Read result 125 Necessity judgment table 126 Prevention rewriting necessity 127 Light data 128 Judgment result table 130 Card R / W mechanical control unit 140 Card R / W mechanical 150 Magnetic head control unit 151 MS read interrupt processing unit 152 Peak interval calculation unit 153 Magnetic output read Unit 160 MS read processing unit 161 Jitter evaluation unit 162 Magnetic output evaluation unit 163 0/1 Conversion unit 164 Read data editing unit 165 Read data result judgment unit 166 Write judgment unit 170 MS write processing unit 172 MS write interrupt processing unit 180 Magnetic head Circuit unit 181 Magnetic head 182 Peak detection circuit 183 Magnetic output detection circuit 184 Timer circuit 185 Light data output circuit 200 IC card R / W control unit 210 Contact unit 220 Receipt printer control unit 230 Receipt printer mechanism

Claims (10)

In an automated teller machine having a magnetic card device that reads and writes information on the magnetic stripe of a card using a magnetic head.
A jitter evaluation unit that evaluates jitter indicating time variation of the magnetic output read by the magnetic head, and a jitter evaluation unit.
A magnetic output evaluation unit that evaluates the level of the read magnetic output,
Based on the evaluation of the jitter by the jitter evaluation unit and the evaluation of the level of the magnetic output by the magnetic output evaluation unit, whether or not to rewrite the read magnetic stripe information to the magnetic stripe is divided into a plurality of patterns. Equipped with a writing judgment unit to judge
The magnetic head is an automated teller machine that writes information about a magnetic stripe to the magnetic stripe based on the pattern determined by the writing determination unit, or returns a card without writing the information. The magnetic card device according to claim 1.
The writing determination unit determines whether or not to rewrite to the magnetic stripe a plurality of times.
The magnetic head is an automated teller machine that writes information about a magnetic stripe on the stripe based on a priority corresponding to a pattern determined by the writing determination unit, or returns a card without writing the information. The automated teller machine according to claim 2.
The magnetic head determines that the pattern determined to be the same pattern multiple times by the writing determination unit is a high-priority pattern, and writes the magnetic stripe information on the stripe, or returns the card without writing. An automated teller machine characterized by performing. The automated teller machine according to claim 3.
The writing determination unit satisfies at least the first condition and the second condition, with the condition that the level of the magnetic output is equal to or less than a predetermined condition and the condition that the jitter is equal to or less than a predetermined condition. In some cases, it is judged to be the fourth pattern,
When the magnetic head is determined to have the fourth pattern, the magnetic stripe determined to have the fourth pattern when the writing determination unit determines that the pattern is the same a plurality of times. An automated teller machine characterized in that the information of the above is determined to be the pattern having a high priority and is written on the magnetic stripe, or the card is returned without writing. The automated teller machine according to claim 3.
The writing determination unit determines that the pattern is the second pattern when the level of the magnetic output is equal to or less than the reading limit value.
When the magnetic head is determined to have the second pattern, the magnetic stripe determined to have the second pattern when the writing determination unit determines that the pattern is the same a plurality of times. An automated teller machine characterized in that the information of the above is determined to be the pattern having a high priority and is written on the magnetic stripe, or the card is returned without writing. The automated teller machine according to claim 4.
The writing determination unit includes the first condition and the second condition, subject to the third condition that the number of pulses at which the peak value of the magnetic output level becomes equal to or lower than the predetermined level is continuously equal to or greater than the predetermined number. When the three conditions are satisfied, it is judged that it is the third pattern, and
When the magnetic head is determined to have the third pattern, the magnetic stripe determined to have the third pattern when the writing determination unit determines that the pattern is the same a plurality of times. An automated teller machine characterized in that the information of the above is determined to be the pattern having a high priority and is written on the magnetic stripe, or the card is returned without writing. The automated teller machine according to claim 6.
The writing determination unit sets the fourth condition that the fluctuation of the magnetic output level is equal to or higher than a predetermined value and the jitter is equal to or lower than a predetermined value, and adds the first condition, the second condition, and the third condition. Further, when the fourth condition is satisfied, it is determined that the pattern is the fifth pattern, and the pattern is determined to be the fifth pattern.
When the magnetic head is determined to have the fifth pattern, the magnetic stripe determined to have the fifth pattern when the writing determination unit determines that the pattern is the same a plurality of times. An automated teller machine characterized in that the information of the above is determined to be the pattern having a high priority and is written on the magnetic stripe, or the card is returned without writing. The magnetic head according to any one of claims 4 to 7, wherein the magnetic stripe information read when it is determined that the pattern is the same a plurality of times is the same. Is an automated teller machine characterized in that the information of the magnetic stripe determined to have the same pattern is determined to be the pattern having the higher priority and is written to the magnetic stripe, or the card is returned without writing. In the preventive rewriting method of an automated teller machine having a magnetic card device that reads and writes information on the magnetic stripe of the card with a magnetic head.
Jitter indicating the time variation of the magnetic output read by the magnetic head is evaluated.
Evaluate the level of the read magnetic output and
Based on the evaluation of the jitter and the evaluation of the level of the magnetic output, it is determined whether or not to rewrite the read magnetic stripe information to the magnetic stripe by dividing it into a plurality of patterns.
A preventive rewriting method of an automated teller machine, characterized in that the information of the magnetic stripe is written in the magnetic stripe based on the determined pattern, or the card is returned without writing. In a program that causes a computer of an automated teller machine having a magnetic card device to read and write information on the magnetic stripe of a card by a magnetic head.
Jitter indicating the time variation of the magnetic output read by the magnetic head is evaluated.
Evaluate the level of the read magnetic output and
Based on the evaluation of the jitter and the evaluation of the level of the magnetic output, it is determined whether or not to rewrite the read magnetic stripe information to the magnetic stripe by dividing it into a plurality of patterns.
A program characterized in that the information of the magnetic stripe is written in the magnetic stripe based on the determined pattern, or the card is returned without writing.

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