JP2001067810A - Magnetic data processor and magnetic medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restore data even when a part of the data is demagnetized by a method wherein, when the data is read out, whether read data is single-block data or a block data group which ties a plurality of identical block data is judged, and, when the read data is the block data group, the block data group is edited to single block data. SOLUTION: Whenever every data which constitutes block data from a write- data storage part 9 in a memory 16 is stored in the register of a temporary data storage part 11, the value of a counter part 12 is incremented by +1. Whether the data is end data or not is judged. When the data is the end data, a processing operation is finished. When the data is not the end data, whether a place number which agrees with the value of the counter part 12 exists or not is judged by referring to a table in the memory 16. When it agrees, the processing operation is returned to a starting point. When it does not agree, the data which is stored in the data storage part 11 is shifted to write-data storage part 9, and the processing operation is returned to the starting point. As a result, block data from which fixed data thinned out can be stored in the write-data storage part 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a magnetic data processing apparatus and a magnetic medium used in the magnetic data processing apparatus.

[0002]

2. Description of the Related Art Conventionally, for example, a magnetic data processing apparatus provided in an automatic cash handling apparatus for reading customer information from a magnetic medium such as a passbook or a cash card uses a magnetic medium having a magnetic stripe attached through a read head. The read data that has been read is transmitted to the host device, the host device performs a cash handling process based on the read data, and receives the write data that has been subjected to the predetermined processing from the host device, Writing is performed on the magnetic medium through the write head.

[0003]

In the conventional magnetic data processing apparatus, when a part of the magnetic data is demagnetized, the customer information cannot be read, and the holiday cash transaction must be made to a financial institution. However, when the medium has a demagnetization problem, there is a problem that it is not possible to make a transaction and it is necessary to go to a counter of a financial institution for another day to perform the writing process.

[0004] The present invention provides a magnetic data processing apparatus capable of restoring a state in which transactions can be performed even when a part of magnetic data is demagnetized, and a magnetic medium used in the magnetic data processing apparatus. It is intended to provide.

[0005]

In order to achieve the above object, in a magnetic data processing apparatus according to the present invention, at the time of data reading, single block data which can be processed by read data is provided. And a read data determining means for determining whether the read data is a block data group in which the same block data is connected, and the read data is determined to be a block data group. In some cases, a read data editing unit is provided for editing the block data group into single block data.

Further, in order to achieve the object, in the magnetic medium of the present invention, block data constituted by thinning out predetermined data from single block data which can be processed is provided.
A control code is inserted into the data and written as a group of a plurality of connected block data.

[0007]

Embodiments of the present invention will be described with reference to the drawings. Elements common to the drawings are denoted by the same reference numerals. FIG. 1 is a block diagram of a magnetic data processing apparatus according to an embodiment. The table storage unit 1 stores predetermined digit numbers and fixed data irrelevant to the processing (for example,
Table corresponding to the bank name).

The reading unit 2 reads data from a magnetic stripe 4 (hereinafter, referred to as MS 4) through a read head 3.
The data is read and stored in the read data storage unit 5.

At the time of reading data, the read data determination section 6 determines whether the read data stored in the read data storage section 5 is single block data. It is determined whether or not a block data group is formed by connecting a plurality of identical block data obtained by thinning out fixed data from one block data. In this embodiment, the block data group is composed of the same block data, and two blocks obtained by connecting the first block data and the second block data.

The transmission / reception unit 7 reads the single block data from the read data storage unit 5 and transmits it to the host device 8, and the write data received from the host device 8 is stored in the write data storage unit 9. Store. The host device 8 communicates with a center (not shown) based on the single read data, and performs predetermined processing on the read data.

The read data editing unit 10 determines whether the read data stored in the read data storage unit 5 is a block data group by the read data determination unit 6. When it is determined, first,
The block data group is combined to generate one block data in the read data storage unit 5.

Next, each time the data constituting the block data is read from the read data storage section 5 and stored in the temporary data storage section 11, the value of the counter section 12 is incremented by +1. When the counter value is compared with the digit number with reference to the table in the table storage unit 1 and the counter value matches, the fixed data corresponding to the digit number is read out from the table and the upper data is read. The data to be transmitted to the device 8 is stored in the read data storage unit 5 and the counter unit 12 is incremented by +1 and repeated until there is no digit number that matches the counter value. If not, the data stored in the temporary data storage unit 11 is stored in the read data storage unit 5 as data to be transmitted to the host device 8.

The write data editing section 13 reads out each data constituting the write data from the write data storage section 9 and stores it in the temporary data storage section 11 every time the counter section 1 is read.
The value of 2 is incremented by +1 and the counter value is compared with the digit number with reference to the table in the table storage unit 1. If there is a digit number that matches the counter value, the input data is thinned out. To the write head 14, and if there is no digit number that matches the counter value, the data stored in the temporary data storage unit 11 is output to the write head 14 and written to the MS4.

In the present embodiment, the reading unit 2, the transmitting / receiving unit 7, the read data editing unit 10, and the temporary data storage unit 1
1, a counter section 12, and a write data editing section 13 are constituted by a central processing unit 15 (hereinafter referred to as a CPU 15), and a table storage section 1, a read data storage section 5, a write data storage section 9 Is constituted by each storage area of the memory 16.

FIG. 2 is a front view of the passbook, and FIG. 3 is an explanatory view showing a magnetic data writing pattern. FIG. 2 shows a medium 18 (hereinafter referred to as a passbook 18) handled by the automatic cash handling apparatus.
MS4 is provided as shown in FIG.

The MS 4 has a single block data 4a as shown in FIG. 3A or a two-block data as shown in FIG.
The same block data of the block, first and second block data 4b and 4c are provided.

The block data 4a is composed of 50 digits of data, and includes a control code, a start code S (one digit) and an end code.
A data E (one digit) and a CRC check code (two digits), and a timing mark TM for synchronizing data reading.

Each of the first block data 4b and the second block data 4c has a data number of 20 digits, and the control code is a start code S (one digit) and an end code E (1). digit),
First block, second with CRC check code (4 digits)
A block is composed of data before the first block, between the first block and the second block, and after the second block.
A timing mark TM for synchronizing data reading is provided.

Data, start code S, end code E, C
In the RC check code, one digit is represented by 4 bits.
The end and end codes are, for example, "1111" in binary code,
That is, "F" is written in hexadecimal code.

The CRC code is, for example,
A cyclic redundancy check (Cyclic Redundancy Check) is performed using the 20-digit data and the end code as a check range.

FIGS. 4A and 4B are explanatory diagrams of the read data conversion process. FIG. 4A is a detailed diagram of two blocks, and FIG. 4B is a detail of read data edited by the CPU into one. FIG. 4C is a detailed view of single read data output to the host device.

First and second block data 4b, 4c
Is composed of variable data that changes depending on the contents of a transaction when the host device 8 communicates with the center. CPU1
5 is the first block data 4b and the second block data 4b.
and (c) are combined to derive one block data 4d as shown in (B), and furthermore, the fixed data is fixed to a predetermined digit.
Data (indicated by XX (HEX)) is inserted and edited into 50-digit single read data as shown in FIG.

FIG. 5 is an explanatory diagram of the write data conversion process. FIG. 5A is a detailed diagram of the write data from the host device.
(B) is a detailed view of the write data in which fixed data is thinned out,
FIG. 3C is a detailed view of the write data transmitted to the write head.

The host device 8 receives 50-digit single write data from the center as shown in FIG.
Send to The CPU 15 thins out fixed data of a predetermined digit (indicated by *) and outputs the data as shown in FIG.
Edit to 0-digit block data and start with code S,
The first block data 4b and the second block data 4c are added by adding an end code E and a control code of a CRC check code.
To edit.

FIG. 6 is an explanatory diagram showing the form of a rewritable degaussing area, where L indicates the maximum readable degaussing area.
Reading is possible even if there are a plurality of degausses in the degaussing area, but cannot be read if the degaussing is performed beyond the maximum degaussing area L. (A) and (B) show the case where the maximum demagnetization area L straddles the first block and the second block, and (C)
Indicates the case where the maximum demagnetization area is the first block,
(D) shows the case where the maximum degaussing area is the second block.

FIG. 7 is a flowchart showing the operation of the MS read processing.
FIG. 8 is a flowchart showing the operation of the synthesizing process.
FIG. 9 is a flowchart showing the operation of the compare check process, and all the operations are performed by the CPU 15.

Next, the operation will be described. First, the operation of the MS read processing will be described with reference to FIG. In step S1, the passbook 18 is advanced through the read head 3 to read the read data from the MS 4 (hereinafter referred to as forward read) and stored in the read data storage section 5 of the memory 16. I do.

In step S2, the analysis of the read data is started, and the read data is a single block data or a block data group obtained by connecting a plurality of block data. Is determined. In step S3, the read data stored in the memory 16 is read out, and it is determined whether the write pattern is the passbook 18 in the one block format (single block data) or not (FIG. 3A).
Check the start code S and end code E of the write pattern and the position of the digit of the block data 4a.
If the position comparison results are different, it is determined that the write pattern is the two-block passbook 18 shown in FIG. 3B, and the flow branches to step S4. If not, the flow branches to conventional processing.

In step S4, first, the position of the control code (start code S, end code E) of the first block is checked, and if the position check is correct, the CRC check of the first block is performed. Do. Next, regardless of whether the first block is normal or abnormal, the position of the control code (start code S, end code E) of the second block is checked. If the position check is correct, the second block is checked. Is performed. The check result is output in 2 bits.

In step S5, the process is divided into a combination process, a normal process, and a compare check process based on the check result. When the check result is 00 (FIGS. 6A and 6B)
In step S6, it is determined that both the first and second blocks are abnormal, and the flow branches to step S6 to proceed to the combining process shown in FIG.

If the check result is 11, it is determined that both the first and second blocks are normal, and the flow branches to step S9 to proceed to the compare check process shown in FIG.

If the check result is 01 (FIG. 6D), it is determined that the first block is normal, and the routine goes to step S40 of the compare check process shown in FIG.

If the check result is 10 (FIG. 6C), it is determined that the second block is normal, and the routine goes to step S42 of the compare check process shown in FIG.

When the synthesizing process and the compare checking process are completed, the process returns to step S10, and a flag is checked to determine whether or not each process is completed normally. If the processes are completed normally, the process branches to step S11. Then, the process is terminated as a magnetic stripe read error.

In step S11, as shown in FIG. 4, the read data to be output to the host device 8 is edited, and the processing is terminated assuming that the magnetic stripe read is normal.

Next, the operation of the synthesizing process will be described with reference to FIG. At step S20, the passbook 18 is moved backward through the read head 3 to read the read data (hereinafter referred to as "backward drive") and stored in the read data storage section 5 of the memory 16.

In step S21, data is read from the read data storage unit 5 and bits are replaced (backward reading).
The read data is forwarded) and stored in the read data storage unit 5. In step S22, a CRC check code for the second block is performed. If the second block is normal in step S23, the flow branches to step S32, and if not, the flow branches to step S24.

At step S24, the end code E of the second block is checked. At step S25, the end code E of the second block is normal ("F" is written in hexadecimal code). If so, the process branches to step S31; otherwise, the process branches to step S26.

In step S26, the end code E of the second block and the CRC check code are added to the end code of the first block.
Copy to the position of code E and CRC check code,
Perform a CRC check on the block. First in step S27
If the CRC check of the block is normal, the flow branches to step S32, and if not, the flow branches to step S28.

In step S28, the last data of the block data 4c of the second block is replaced with the block data of the first block.
The data is copied to the last data position of the data 4b, and the CRC check of the first block is performed. If the CRC check of the first block is normal in step S29, the flow branches to step S32.
If not, the flow branches to step S30.

In step S30, it is checked whether the next data to be copied is the first data of the block data 4c.
If it is the first data, the flow branches to step S31; if not, the flow branches to step S28.

In step S31, the flag of the combined error is set, and the process returns to step S10 shown in FIG. Step S32
A normal flag is set in step S10, and step S10 shown in FIG.
Return to At this time, the first block, which was partially demagnetized,
Normal block data 4d as shown in FIG.
Having.

Next, the operation of the compare check process will be described with reference to FIG. In step S40, the block data 4b of the first block and the block data of the second block
4c is compared and checked in order from the first digit, and step S
At 41, it is checked whether or not all are normal. If all are normal, the process branches to step S42, and if not, the process branches to step S43.

In step S42, a normal flag is set, and the flow returns to step S10 shown in FIG. In step S43, the compare error flag is set, and in step S10 shown in FIG.
Return to

By the way, when the compare check processing and the synthesizing processing are completed normally and the process returns to the step S11 shown in FIG. 7, the normal block data is stored in the memory as shown in FIG. Since the read data is stored in the read data storage unit 16, the fixed data is inserted into the block data and output to the host device 8 as shown in FIG. Edit it. This operation will be described with reference to FIG. FIG. 10 is a flowchart showing the read data editing process to be transmitted to the host device.

The table storage unit 1 of the memory 16 stores a table in which a predetermined digit number is associated with fixed data (for example, a bank name) unrelated to processing at the center. is there.

Next, write data editing processing will be described with reference to FIG.
This will be described with reference to FIG. FIG. 11 is a flowchart showing the operation of the write data editing process. The write data shown in FIG. 6A is transmitted from the center to the write data storage unit 9 of the memory 16 through the host device 8.

At step S60, the write data
The value of the counter unit 12 is incremented by one each time each data constituting the block data from the data storage unit 9 is stored in a register (not shown) as the temporary data storage unit 11.
In step S61, it is checked whether or not the data is end data, that is, whether or not the counter value matches 20. If the data is end data, the process is terminated. If not, the process branches to step S62.

In step S62, the table in the memory 16 is referred to, and it is checked in step S63 whether there is a digit number that matches the counter value. If there is a digit number that matches the counter value, step S60 is performed. If not, the process branches to step S64.

In step S64, the data stored in the temporary data storage unit 11 is output to the write data storage unit 9,
It returns to step S60. As a result, as shown in FIG. 5B, block data obtained by thinning out fixed data is stored in the write data storage unit 9. Further, by inserting a control code and performing this operation twice, FIG.
As shown in FIG. 3C, a block data group consisting of two blocks connecting the same first block and second block is edited, and this block data group is written into the write head 14.
Write to MS4 through.

[0051]

Since the present invention is configured as described above, it has the following effects. At the time of reading data, it is determined whether the read data is a single block data that can be processed or a block data group obtained by connecting a plurality of the same block data. Data determination means, and a read data editing unit for editing the block data group into single block data when the read data is determined to be a block data group. As a result, even if there is a demagnetization point in the block data, it can be edited into a processable single block data.

Further, when writing data, a write data editing unit for editing the write data into a block data group is provided, so that the block data can be converted into a single block data.
Even if the medium is written with data, after the transaction, a block data group consisting of a plurality of the same block data is written on the medium, so go to the window of the financial institution to take measures against demagnetization and write No need to process.

Also, it is determined whether the read data is a single block data which can be processed or a block data group in which a plurality of the same block data are connected. Since the data processing device side performs editing processing for demagnetization measures by providing data determination means, there is no need to change the interface with the host device, and the system transition is facilitated. is there.

The group of block data is written to the magnetic medium by connecting a plurality of identical block data formed by thinning out predetermined data from single block data that can be processed. Therefore, the size of the magnetic medium does not need to be changed, and the user of the magnetic medium does not feel strange.

[Brief description of the drawings]

FIG. 1 is a block diagram of a magnetic data processing device according to an embodiment.

FIG. 2 is a front view of a passbook.

FIG. 3 is an explanatory diagram showing a magnetic data write pattern.

FIG. 4 is an explanatory diagram of a lead data conversion process.

FIG. 5 is an explanatory diagram of a write data conversion process.

FIG. 6 is an explanatory diagram showing a form of a readable demagnetizing region.

FIG. 7 is a flowchart showing an operation of an MS read process.

FIG. 8 is a flowchart showing the operation of the combining process.

FIG. 9 is a flowchart showing the operation of a compare check process.

FIG. 10 is a flowchart showing a read data editing process to be transmitted to a host device.

FIG. 11 is a flowchart showing the operation of a write data editing process.

[Explanation of symbols]

 Read data determination means 6 Read data editing unit 10 Write data editing unit 13 CPU 15 Memory 16

Claims (7)

[Claims] 1. A host device transmits read data read from a medium as a processable single block data to a host device, and writes the block data subjected to predetermined processing to the host device. A magnetic data processing apparatus for receiving data from a write head and writing the data to the medium through a write head, wherein at the time of data reading, the read data is the single block data or the same block data. Read data determining means for determining whether or not the read data is a block data group; and when the read data is determined to be a block data group, A magnetic data processing device comprising a read data editing unit for editing the single block data. 2. When writing data, write data for editing the write data into the block data group.
2. The magnetic data processing device according to claim 1, further comprising a data editing unit. 3. The magnetic data processing apparatus according to claim 1, wherein said identical block data is formed by thinning out predetermined thinning data from said single block data. 4. The magnetic data processing apparatus according to claim 3, wherein the thinned data is fixed data irrelevant to the processing. 5. The read data editing section includes a counter, a temporary data storage section for temporarily storing data at the time of data editing, and a predetermined digit number. A table in which the thinned data is made to correspond to each other, and each block data constituting the block data group is overlapped to derive one block data to form the block data. Each time the data to be stored is stored in the temporary data storage means, the value of the counter is incremented by a predetermined value, and the counter value is compared with the digit number with reference to the table to match the counter value. In this case, the thinning data corresponding to the digit number is read out from the table to be edited into the single block data, the counter is incremented by the predetermined value, and the counter value is incremented. Repeat until there are no more digit numbers that match If there is no digit number that matches the temporary data, the next data is used as the data for editing the data stored in the temporary data storage unit into the single block data. 2. The magnetic data processing apparatus according to claim 1, wherein the magnetic data is stored in a storage unit. 6. The write data editing section includes a counter, temporary data storage means for temporarily storing data at the time of data editing, and a digit number of the thinned data. The counter is incremented by a predetermined value each time data constituting the write data is stored in the temporary data storage means, and the counter is referred to by referring to the table. The value is compared with the digit number. If there is a digit number that matches the counter value, the next data is overwritten in the temporary data storage means. The next data stored in the temporary data storage is transmitted to the write head as the next data.
3. The magnetic data processing apparatus according to claim 2, wherein the data is stored in data storage means, and after the last data is processed, the processing is repeated to edit the block data group. 7. The read data is transmitted as single block data that can be processed to a higher-level device, and the write data obtained by subjecting the block data to a predetermined process is received from the higher-level device. In a magnetic medium used in a magnetic data processor for writing data through a write head, a control code is converted to block data constituted by thinning out predetermined data from the single block data. A magnetic medium characterized by being written as a block data group in which a plurality of block data are inserted and inserted.