JP2999433B2 - Recording medium processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to a recording medium processing apparatus for effective reading processing and write processing of the recording and reproducing data to serial Rokunakadachi body.

[0002]

2. Description of the Related Art Conventionally, recording / reproducing data such as magnetic data is recorded on a recording medium such as a magnetic card, and the recording / reproducing data is read from the recording medium by a recording medium processing device such as a card processor. There is a system that executes processing and writing processing. Such a system includes, for example, a point card system in which points exchanged with various services in accordance with the cumulative number are provided from the store to the customer in accordance with the purchase price, or a prepaid system in which the purchase price is subtracted from a predetermined price paid in advance by the customer. Used as a card system.

[0003] In the point card system, a point card for storing cumulative data of the number of points, which is recording / reproducing data, is used as a recording medium. The accumulated data of the number of points is read out by the processor, and the accumulated data is updated and written to the point card by adding points according to the current purchase amount.

Further, in the prepaid card system, a prepaid card for storing balance data obtained by subtracting a purchase amount from a customer's prepaid amount, which is recorded / reproduced data, is used as a storage medium and presented by a customer at the time of purchase of a product at a store. The balance data is read from the prepaid card by a card processing machine installed in the store, the balance data is updated by subtracting the current purchase amount, and the balance data is updated and written to the prepaid card.

As these point cards and prepaid cards, magnetic cards for magnetically recording recorded / reproduced data are generally used. This magnetic card has
A magnetic stripe for recording reproduced data continuously in a certain direction is formed. A card processing machine for processing a magnetic card is provided with a magnetic head for reading / writing magnetic data by contacting a magnetic stripe of the magnetic card. The data is conveyed so as to face each other, and during this time, the recorded / reproduced data recorded on the magnetic stripe is read in one direction and subjected to so-called serial processing.

That is, the card processor sequentially reads recorded / reproduced data recorded on the magnetic card in the same direction as the direction recorded on the magnetic stripe, and reads the recorded / reproduced data.
The reproduction data is written to the magnetic card again after a predetermined update process. For this reason, in order to accurately process a magnetic card in a card processor, it is necessary to read recording / reproducing data recorded on a magnetic stripe of the magnetic card in the same direction as the recording direction. The magnetic card must be inserted in the proper direction with respect to the processor.

However, since the magnetic card has a flat rectangular shape, it is difficult to limit the insertion direction of the magnetic card to the card processor in one direction, and the magnetic card is always inserted into the card processor in an appropriate direction. However, if the magnetic card is inserted in the opposite direction, the magnetic head will read the recorded / reproduced data in the opposite direction, and the card processor will accurately process the recorded / reproduced data. Can't do it.

Therefore, in the conventional magnetic card, as shown in FIG. 6, a start mark (hereinafter, referred to as STX) 64 is provided at a start position of recording / reproducing data 63 in which preamble data 61 and postamble data 62 are arranged before and after.
Has been granted. The preamble data 61 and the postamble data 62 are data for synchronizing the processing of the magnetic data, and are generally constituted by a predetermined number of data strings having a logical value of 0. In addition, STX64 records /
This data specifies the start position of the reproduction data 63, and is constituted by a predetermined combination of logical values 1 and 0.

The card processor searches for STX 64 in the magnetic data read from the magnetic stripe of the magnetic card, and processes the magnetic data following STX 64 as recording / reproducing data 63. That is, the card processing machine is STX6
4 to determine whether the reading direction of the magnetic data is appropriate on condition that a data string of a predetermined combination exists in the front, and determine a data string of a predetermined combination as STX64 in the read magnetic data. Is not detected, the magnetic card is ejected without processing the recorded / reproduced data 63.

Therefore, when the magnetic card 60 shown in FIG. 6 is inserted into the card processor in the direction of arrow A, the card processor follows the preamble data 61 and the ST.
X64 is detected, and the processing on the recording / reproducing data 63 subsequent to STX64 is properly performed. On the other hand, when the magnetic card 60 is inserted into the card processor in the direction of arrow B, the magnetic data is read from the postamble data 62 side in the card processor, and the recording / reproducing data is read in the opposite direction. However, since the data string of STX64 is also read in the opposite direction, the card processor does not detect STX64 in the read magnetic data, and does not perform erroneous processing based on the read / write data 63 read in the opposite direction.

[0011]

However, in the magnetic data recorded on the conventional magnetic card, the STX arranged at the start position of the recording / reproducing data has the logical values 1 and 0 similarly to the recording / reproducing data. And the data sequence of the recording / reproducing data is changed by the processing in the card processor, so that the STX is added to the last part of the recording / reproducing data.
There is a possibility that there is a data string in which the front and rear positions of the data string are inverted.

As described above, when a magnetic card on which recording / reproducing data having a data sequence obtained by inverting the front / rear position of the STX data sequence is included at the rear end is inserted in the card processing machine in the opposite direction, generally the front / rear direction is obtained. Following the postamble data for which it cannot be determined, a data string in which the front and rear positions of the STX data string are inverted is read from the opposite direction. As a result, the card processor detects the last data row of the recording / reproducing data as the STX data row, and the remaining part of the recording / reproducing data read in the opposite direction and the STX read in the opposite direction. Erroneous processing is executed based on the

In order to prevent erroneous processing in the card processor, the operator of the card processor is forced to insert a magnetic card which can be inserted in both forward and reverse directions only in an appropriate direction with respect to the card processor. And the handling of the magnetic card becomes complicated.

Such a problem does not occur only in a magnetic card for magnetically recording recording / reproducing data and a card processor for processing the magnetic card, but also for a recording medium in which recording / reproducing data is recorded in a certain direction. And a recording medium processing apparatus that processes recording / reproducing data recorded by the recording medium.

An object of the present invention is to enable a recording medium processing device to determine the reading direction of recorded / reproduced data read from a recording medium, so that the setting direction of the recording medium with respect to the recording medium processing device is opposite to the proper direction. In some cases, the processing of recorded / playback data can be performed properly,
It is not necessary to force the setting direction of the recording medium to the recording medium processing apparatus in the insertion direction or the like of the card in the proper orientation with respect to the card processor, the recording medium body processing apparatus capable of facilitating the handling of the recording medium To provide.

[0016]

According to a first aspect of the present invention, there is provided an apparatus for reading data continuously read in a fixed direction from a recording medium.
A forward array of the front direction discrimination data in the column, and
Search in the reading direction for the reverse direction of the rear direction discrimination data
And the forward array of front direction discrimination data exists first.
In this case, process recorded / reproduced data in the reading direction and
If the reverse direction array of direction discrimination data exists first,
Data for processing recording / playback data in the direction opposite to the reading direction
A processing means is provided .

[0017]

[0018]

In the first aspect of the present invention, if the front direction discrimination data exists before the recording / reproducing data, the recording / reproducing data is processed in the reading direction, and the rear-side discriminating data is processed before the recording / reproducing data. If the direction discrimination data exists, the recording / reproduction data is processed in the direction opposite to the reading direction. Therefore, the recorded / reproduced data read regardless of the setting direction of the recording medium is properly processed.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a magnetic card for magnetically recording recorded / reproduced data and a card processor for processing the magnetic card. FIG. 1 is an external view showing a magnetic card and a card processor as an example of an embodiment of the present invention. The card processing machine 1 has a card insertion slot 2 formed on the front face, and a magnetic card 10 presented by a customer is inserted into the card insertion slot 2. On the upper surface of the card processor 1, a keyboard 3 and a display 4 are arranged. Keyboard 3
An input operation related to the processing of the magnetic card 10 is received. The display 4 appropriately displays the processing state of the magnetic card 10 and the like. A magnetic stripe 1 is provided on the surface of the magnetic card 10.
1 is formed on the magnetic stripe 11,
Magnetic data including reproduction data is magnetically recorded in a certain direction.

FIG. 2 is a diagram showing the structure of magnetic data magnetically recorded on the magnetic stripe of the magnetic card. A preamble data 21, a front direction discrimination data 25, an STX 24, a recording / reproducing data 2 are provided on a magnetic stripe 11 formed on the surface of the magnetic card 10 in parallel with the longitudinal direction.
3. The rear direction discrimination data 26 and the postamble data 22 are recorded in this order in the forward direction indicated by the arrow C in the figure. The preamble data 21 and the postamble data 22 are data strings of logical value 0, and are recorded between them.
This is data for synchronizing the processing of the recorded / reproduced data. The STX 24 is a data string of logical values 0 and 1 according to a predetermined combination.
Indicates the start position of.

The recording / reproducing data 23 has logical values 0 and 1
Is data representing information according to the type of the magnetic card 10 by a combination of the above. When the magnetic card 10 is a prepaid card, it represents an available balance, and when the magnetic card 10 is a point card, it represents the total number of points. In addition, record
The reproduction data 23 includes authentication data for authenticating the magnetic card 10. The front direction discrimination data 25 and the rear direction discrimination data 26 are data strings of logical values 0 and 1 according to a predetermined combination, and a forward array of data of the logic values 0 and 1 in the front direction discrimination data 25; The rear direction discrimination data 26 is configured such that the data of the logical values 0 and 1 in the reverse direction do not match.

FIG. 3 is a diagram showing an array of logical values of each magnetic data recorded by the magnetic card. Magnetic card 10
Of the magnetic data stored in the preamble data 2
1. The postamble data 22, the STX 24, the front direction discrimination data 25, and the rear direction discrimination data 26 are predetermined data strings whose data length and data array are fixedly determined in advance. The preamble data 21 and the postamble data 22 are data strings in which the logical values of all bits having a data length of 32 bits are 0. STX2
4 is 8-bit data, for example, FFh (111
11111).

Both the front direction discrimination data 25 and the rear direction discrimination data 26 are 8-bit data. For example, the front direction discrimination data 25 is 80h (100000).
0) and the rear direction discrimination data 26 are 40h (01
000000). The rear direction discrimination data 26 read from the reverse direction is 02h (0000001).
0), and does not match the front direction discrimination data 25 read from the forward direction.

FIG. 4 is a block diagram of a control unit of the card processing machine. The control unit 30 of the card processor 1 has a ROM
A sensor 35 and a magnetic head drive circuit 3 are connected to a CPU 31 having a RAM 32 and a RAM 33 via an interface 34.
6. Thermal head drive circuit 37, motor drive circuit 3
8, input and output devices such as a keyboard 3 and a display 4 are connected. The CPU 31 controls each input / output device according to a program written in the ROM 32 in advance. At this time, data input / output to / from the CPU 31 is stored in a predetermined memory area of the RAM 33.

The sensor 35 detects the insertion of the magnetic card 10 into the card insertion slot 2 and outputs a detection signal to the CPU 31. The magnetic head drive circuit 36 includes a magnetic head 41
And reads the magnetic data from the magnetic card 10 via the CPU and outputs the read magnetic data to the CPU 31.
The magnetic head 41 is driven based on the write data supplied from the CPU 31 to write the magnetic data on the magnetic stripe of the magnetic card 10. Thermal head drive circuit 37
Drives the thermal head 42 based on the notation data supplied from the CPU 31 and prints the visual recognition information on the surface of the magnetic card 10. The keyboard 3 transmits the operation data to the CP
Output to U31. The display 4 displays display data supplied from the CPU 31.

FIG. 5 is a flowchart showing a processing procedure of the control unit of the card processing machine. The CPU 31 constituting the control unit 30 of the card processor 1 waits for the insertion of the magnetic card 10 into the card insertion slot 2 after the power is turned on (s1). When the magnetic card 10 is inserted into the card insertion slot 2 and the sensor 35 is turned on, the CPU 31 outputs drive data to the motor drive circuit 38 and starts transporting the magnetic card 10 (s2). When the magnetic card 10 is transported in the card transport path, the magnetic stripe 11 of the magnetic card 10 faces the magnetic head 41, and magnetic data is read from the magnetic card 10 via the magnetic head 41 (s).
3). The CPU 31 temporarily stores the magnetic data input from the magnetic head drive circuit 36 in the RAM 33.

Next, the CPU 31 searches the magnetic data stored in the RAM 33 for the direction discrimination data 25 or 26 following the amble data 21 or 22 for the reading direction (s4). That is, the CPU 31 searches the forward direction discrimination data 25 following the preamble data 21 or the backward direction discrimination data 26 following the postamble data 22, and searches for the forward direction discrimination data following the preamble data 21. When the discrimination data 25 is detected, the ST in the magnetic data stored in the RAM 33
X24 is searched (s5, s6), and data processing is performed using the magnetic data between the STX 24 and the rear direction discrimination data 26 as the recording / reproducing data 23 (s7).

When the CPU 31 detects a reverse direction array of the rear direction discrimination data 26 following a predetermined number of data strings having a logical value 0 by searching the magnetic data stored in the RAM 33 for the reading direction, Then, it is determined that the magnetic card 10 has been inserted in the opposite direction, and the magnetic data stored in the RAM 33 is inverted and stored in another memory area in the RAM 33 (s8). The CPU 31 searches for the STX 24 in the inverted magnetic data (s6), and
24 and the rear direction discrimination data 26
The reproduction data processing (s7) is executed.

Thereafter, the CPU 31 updates the recording / reproducing data based on the transaction data input via the keyboard 3 (s9), and transfers the updated recording / reproducing data 23 via the magnetic head 41. After writing on the magnetic card 10 (s10), the magnetic card 10 is ejected from the card insertion slot 2 (s11). The write process of the recording / reproducing data 23 after the update process on the magnetic card 10 is performed by once transporting the magnetic card 10 after the magnetic data read process in the ejection direction, and then moving the magnetic card 10 to the magnetic head 41. It is executed while transporting in the forward direction.

The recorded / reproduced data 23 after the update process
Is different depending on the insertion direction of the magnetic card 10. That is, when the magnetic card 10 is inserted into the card slot 2 in the correct direction, the CPU 31
4, the recording / reproducing data 23 is written in the forward direction. On the other hand, when the magnetic card 10 is inserted in the card insertion slot 2 in the reverse direction, the recording / reproducing data 23 is written in the position following the rear direction discrimination data 26. The recording / reproduction data 23 is written in the reverse direction.

With the above processing, this card processor 1
In the magnetic data read from the magnetic card 10, first, the front direction discrimination data 25 in the forward direction following the amble data 21, 22 or the rear direction discrimination data 26 in the reverse direction are searched to insert the magnetic card 10. It is determined whether the direction is the forward direction or the reverse direction, and a process according to the insertion direction of the magnetic card 10 is performed based on the determination result. There is no need to force the direction in only one direction.
0 can be easily performed.

The front direction discrimination data 25 and the rear direction discrimination data 26 written on the magnetic card 10 for discrimination of the insertion direction are the same as those of the rear direction discrimination data 26 in the reverse direction. 25, the arrangement of the rear direction discrimination data 26 in the reverse direction of the magnetic data read in the reverse direction from the magnetic data 10 inserted in the reverse direction is
The insertion direction of the magnetic card 10 can be accurately determined without being erroneously detected as the arrangement of the front direction determination data 25 in the forward direction.

For example, as shown in FIG.
When the last 8 bits of the recording / reproducing data stored in 0 are FFh, the conventional magnetic data without the front direction discrimination data 25 and the rear direction discrimination data 26 has the post data read in the reverse direction. Amble data and record
Since the data array of the last 8 bits of the reproduced data matches the data array of the preamble data and STX when read in the forward direction, the insertion direction of the magnetic card can be determined based on the magnetic data array. Disappears.

In general, the last 8 of the recorded / reproduced data
Since the data array of bits cannot be unambiguously specified, it is not limited to the example shown in FIG. 3 and no matter how the data array of STX is selected, the reverse of the last 8 bits of the recording / reproducing data is performed. It is not possible to completely prevent the alignment of the direction and the alignment of the STX in the forward direction, and the insertion direction of the magnetic card cannot always be accurately determined based on the alignment of the magnetic data.

On the other hand, if the front direction discrimination data and the rear direction discrimination data having different arrangements in the opposite directions are arranged at the rear of the preamble data of the magnetic data and at the front of the postamble data, respectively, The reverse arrangement of the amble data and the rear direction discrimination data is
It is possible to completely prevent the preamble data and the front direction discrimination data from agreeing with the forward arrangement, and to always accurately determine the insertion direction of the magnetic card based on the arrangement of the magnetic data.

In this embodiment, the magnetic card and the card processor for processing the magnetic card have been described as examples. However, other recording media for recording data read in both forward and reverse directions, and this recording medium The present invention can be similarly embodied in another recording medium processing apparatus that processes the data.

[0038]

According to the first aspect of the present invention, recording is performed.
・ If the front direction discrimination data exists before the playback data
Process the recorded / reproduced data in the reading direction, and
When the backward direction discrimination data exists before the raw data
Means to process recorded / reproduced data in the direction opposite to the reading direction
The recording that is read regardless of the setting direction of the recording medium
・ Reproduced data can be properly processed and recorded / reproduced
There is no need to force the data reading direction to a fixed direction, and the processing operation of the recording medium can be facilitated.

[0039]

[Brief description of the drawings]

FIG. 1 is a magnetic card according to an embodiment of the present invention;
FIG. 2 is an external view of a card processing machine.

FIG. 2 is a diagram showing a configuration of magnetic data recorded on a magnetic stripe of the magnetic card.

FIG. 3 is a diagram showing a configuration of each unit of the magnetic data.

FIG. 4 is a block diagram of a control unit of the card processing machine.

FIG. 5 is a flowchart showing a processing procedure of a control unit of the card processing machine.

FIG. 6 is a diagram showing a configuration of conventional magnetic data.

[Explanation of symbols]

 1-Card processing machine 2-Card insertion slot 3-Keyboard 4-Display 10-Magnetic card 11-Magnetic stripe 21-Preamble data 22-Postamble data 23-Record / reproduce data 24-STX 25-Front direction discrimination data 26- Rear direction discrimination data

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G06K 13/06 G06K 17/00

Claims (1)

(57) [Claims] 1. A method of continuously reading data from a recording medium in a certain direction.
Of the forward direction discrimination data in the forward direction
How to read the row and the reverse direction of the rear direction discrimination data
Search in the forward direction, the forward array of front direction discrimination data is
If present, process record / playback data in read direction
And the reverse direction array of the rear direction discrimination data exists first.
Process recorded / reproduced data in the direction opposite to the reading direction
Recording medium provided with data processing means for performing
Processing equipment .