JPH0762884B2 - Magnetic information processing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic information processing apparatus for writing or reading information on a magnetic recording medium such as a magnetic card or for writing and reading information.

<Background of the Invention> In various conventionally issued magnetic cards, each information bit of recorded magnetic information is written in a direction perpendicular to an information writing position of the magnetic card, as shown in FIG. .

However, with the recent widespread use of devices for writing and reading magnetic information, the information format (writing position and writing direction of information bits) recorded on a magnetic card is deciphered and the recorded information is further recorded. It becomes easy to read and rewrite, and there is a problem in that a falsified card is illegally used.

<Object of the Invention> The present invention makes it possible to freely and easily set the information format recorded on a magnetic recording medium by setting the gap of the magnetic head at an arbitrary angle with respect to the moving direction when the magnetic head is reciprocated. It is an object of the present invention to provide a magnetic information recording device that prevents unauthorized use due to reading or rewriting of information recorded on a magnetic recording medium as set.

<Structure and Effect of the Invention> The present invention is a magnetic information processing apparatus for writing or reading information on or from a magnetic recording medium, and a magnetic head for writing or reading information, and And a moving mechanism that reciprocates the magnetic head relative to the magnetic recording medium, wherein the magnetic head is a turntable capable of setting a gap of the magnetic head at an arbitrary angle with respect to a moving direction. It is characterized by being attached.

According to the above configuration, by rotating the rotary table,
The angle with respect to the moving direction of the magnetic head can be adjusted without directly touching the magnetic head, and the inclination of the information bit recorded on the magnetic recording medium can be freely and easily set.

Therefore, it becomes difficult to read or rewrite the information recorded by this magnetic information recording apparatus by using the conventional apparatus, and the safety is further improved.

<Description of Embodiments> FIG. 1 shows a schematic configuration of a magnetic information processing apparatus according to an embodiment of the present invention.

In this magnetic information processing apparatus, a magnetic recording medium loading section 1, a moving mechanism 2 corresponding to the loading section 1, and a magnetic head 3 attached to a slider 23 of the moving mechanism 2 are provided in a housing. It is composed.

The loading section 1 is formed by forming a receiving section 11 which is adapted to a magnetic card 5 having a magnetic coating film formed on the upper surface of a card receiving table 12 arranged in a housing. The magnetic card 5 held by the receiving portion 11 is pressed against the magnetic head 3 by urging the card receiving table 12 upward by the compression spring 13 provided on the lower side of the table 12.

The moving mechanism 2 is composed of a flat plate linear pulse motor 2a. The linear pulse motor 2a is composed of a flat plate-shaped stator 21 and a mover 22 which is reciprocally supported by the stator 21, and when the magnetic card 5 is held in the loading section 1, the magnetic card 5 information tracks 51 and the stator 21 are arranged in parallel.

One side of the mover 22 projects laterally of the stator 21, and the other side thereof is supported in a cantilevered manner so as to be capable of reciprocating in the direction along the stator 21. The mover 22 constitutes the slider 23, and the rotary table 24 is pivotally fixed to the lateral projection of the stator 22, and the magnetic head 3 is attached to the rotary table 24. The magnetic head 3 is an information track of the magnetic card 5.
Information is written or read by touching 51 and sliding.

A panel 4 is provided behind the linear pulse motor 2a, and photoelectric sensors 41 and 42 are arranged at both ends of the panel 4 in accordance with the width of the magnetic card 5, and a mover 22 of the linear pulse motor 2a is provided. A light-shielding plate 25 that acts on each photoelectric sensor 41, 42 is provided to set the sliding range of the magnetic head 3.

The moving mechanism 2 is not limited to the linear pulse motor 2a. For example, a slider 23 is provided on a lead screw and a guide shaft linked to a drive motor, and the magnetic head 3 is rotatably provided on the slider 23. You may do it.

FIG. 4 shows a circuit configuration example of the magnetic information processing apparatus.

In the figure, a CPU (Central Processing Unit) 6 is a RAM (Ran
dom access memory), ROM (Read Only Memory), and other memory 61 that make up a computer circuit.
Photoelectric sensor circuit 63, linear pulse motor drive circuit 64, magnetic head read circuit 65 to U6 via interface 62,
A magnetic head writing circuit 66 is connected.

The photoelectric sensor circuit 63 includes the two photoelectric sensors 41 and 42 described above.
One photoelectric sensor 41 is for starting the linear pulse motor 2a and the reading and writing operations of the magnetic head 3, and the other photoelectric sensor 42 is for operating the linear pulse motor 2a. The purpose is to stop the reading and writing operations of the magnetic head 3.

The linear pulse motor drive circuit 64 is a linear pulse motor.
It is for driving 2a, and the drive is controlled based on the operations of the photoelectric sensor circuit 63, the magnetic head reading circuit 65, and the magnetic head writing circuit 66.

The magnetic head reading circuit 65 is for reading information from the magnetic card 5 while the magnetic head 3 is moving from one photoelectric sensor 41 to the other photoelectric sensor 42, and if the reading is not performed correctly. Reads the information again from the reverse direction during the return operation.

The magnetic head writing circuit 66 is similar to the reading operation described above.
This is for writing information to the magnetic card 5 during the transition to 42. If writing is not performed correctly, the writing operation is repeated.

The CPU 6 controls the operations of the photoelectric sensor circuit 63, the linear pulse motor circuit 64, the magnetic head reading circuit 65, and the magnetic head writing circuit 66 in series while reading / writing information from / to the memory 61 according to a program.

FIG. 5 shows steps 71 (indicated by "ST71" in the figure) to step 82 of the control procedure by the CPU 6 when writing data according to the above embodiment.

When waiting for the insertion of the magnetic card 5, the magnetic head 3 is located at the initial position of the information track 51 of the magnetic card 5, and the light shielding plate 25 blocks the optical path of the photoelectric sensor 41.

When the magnetic head 3 is to perform the writing process, the determination in step 71 is "YES", and in the next step 72, it is determined whether the photoelectric sensor 41 is in the ON state. in this case,
The determination is "YES", and in the next step 73, the linear pulse motor 2a is started to move the magnetic head 3 from left to right in FIG.
Then, the information bit 52 inclined by a predetermined angle is written (step 74). When the magnetic head 3 reaches the writing end position, the other photoelectric sensor 42 is turned on and the determination in step 75 becomes "YES", the driving of the linear pulse motor 2a is stopped, and the writing process is terminated (step 76).

In the next step 77, in order to return the magnetic head 3 to the initial position, the current direction is changed to drive the linear pulse motor 2a, and when the magnetic head 3 starts shifting by this, the photoelectric sensor 42 is turned off. Then, the determination in step 78 becomes “YES”, and the process proceeds to the next step 79.

When the magnetic head 3 reaches the initial position and the photoelectric sensor 41 is turned on when the magnetic head 3 reaches the initial position, the recording information previously written is read and checked in step 79. The judgment is “YES” and the linear pulse motor 2a stops driving (step 8
1) It is determined whether the write data is normal (step 82). If the determination in step 82 is "YES", the series of operations ends, but if the determination is "NO", the process returns to step 72 and the writing process is performed again.

FIG. 6 shows steps 83 to 95 of the control procedure by the CPU 6 when reading data.

When the reading process is performed by the magnetic head 3, step 83
Is YES, and in the next step 84, it is determined whether the photoelectric sensor 41 is in the ON state. In this case, the determination is "YES", and in the next step 85, the linear pulse motor 2a is started to move the magnetic head 3 from left to right in FIG. Is read (step 86). When the magnetic head 3 reaches the reading end position, the other photoelectric sensor 42 is turned on and the judgment in step 87 becomes "YES", the driving of the linear pulse motor 2a is stopped, and the reading process is ended (step 88).

In the next step 89, it is determined whether or not the read data is defective. When the determination is “YES”, in the next step 90, a reverse current is applied to the linear pulse motor 2a to move the magnetic head 3 to the initial position. Move in the direction of. As a result, the photoelectric sensor 42 is turned off and the determination in step 91 is "YES".
Then, in the next step 92, when the magnetic head 3 moves to the initial position, the recording data on the magnetic card 5 is read again.

If it is determined in step 89 that the read data is not defective, the linear pulse motor 2a is driven to immediately move the magnetic head 3 to the initial position without rereading the recording data (step 93). .

When the magnetic head 3 reaches the initial position and the photoelectric sensor 41 is turned on, the determination in step 94 becomes "YES", the linear pulse motor 2a stops driving (step 95), and a series of operations ends.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a magnetic information processing apparatus according to an embodiment of the present invention, FIG. 2 is a view showing an example of information recording by the magnetic information processing apparatus of FIG. 1, and FIG. FIG. 4 is a diagram showing information recording by the magnetic information processing apparatus, FIG. 4 is a block diagram showing a circuit configuration example of the magnetic information processing apparatus, FIG. 5 is a flowchart showing a control procedure of a writing process, and FIG. 6 is a control of a reading process. It is a flowchart which shows a procedure. 2 ... Moving mechanism, 3 ... Magnetic head, 5 ... Magnetic card, 24 ... Rotating table

Claims (2)

[Claims] 1. A magnetic information processing apparatus for writing information to or reading information from a magnetic recording medium, or for writing and reading information, comprising: a magnetic head for writing and reading information; And a moving mechanism that reciprocates relative to the medium, wherein the magnetic head is attached to a turntable capable of setting the gap of the magnetic head at an arbitrary angle with respect to the moving direction. A characteristic magnetic information processing device. 2. The magnetic information processing apparatus according to claim 1, wherein the magnetic recording medium is a magnetic card having a magnetic coating film formed on the surface thereof.