JPS62141682A - Magnetic information reader and writer - Google Patents

Abstract

PURPOSE:To prevent the falsification and rewriting of read-out magnetic information by freely setting an information format recorded on a magnetic recording medium. CONSTITUTION:Due to the rotation of the stepping motor 6X of the 1st moving mechanism 4X, a lead shaft 9X rotates to attain movement in the X axis direction of a magnetic head 2. At that time a lead shaft 9Y moves integrally, whereby the 2nd moving mechanism 4Y moves on a slide shaft 3Y. The 2nd moving mechanism 4Y operates in the similar manner, and the magnetic head 2 can freely move in the directions of X and Y axes. Accordingly magnetic information can be written and reat at any positions and in any directions of a magnetic card 1.

Description

[Detailed Description of the Invention] <Technical Field of the Invention> This invention prevents magnetic information recorded on a magnetic recording medium such as a magnetic card from being read or rewritten by conventional devices. The present invention relates to a highly safe magnetic information reading/writing device.

<Background of the Invention> Conventionally, in magnetic cards such as cash cards, orange cards (for JNR rides), telephone cards, etc., various value information and other information have been magnetically recorded on the card at approximately constant positions and in a constant direction. There is. However, in recent years, with the widespread use of devices that write and read magnetic information, it has become difficult to decipher the information format (information writing position and writing direction) recorded on magnetic cards, etc. This has the disadvantage that the card can be easily tampered with, such as by reading or rewriting, leading to unauthorized use of the card.

<Purpose of the Invention> The present invention is intended to solve the above-mentioned problems, and by making it possible to freely set the information format recorded on a magnetic recording medium, it is possible to read and rewrite magnetic information. The purpose of the present invention is to provide a highly secure magnetic information reading/writing device that prevents tampering.

<Structure and Effects of the Invention> In order to achieve the above object, the present invention provides a device for recording magnetic information on a magnetic recording medium or reading the magnetic information, which includes a magnetic head for recording information or reading recorded information; , a moving mechanism for independently moving the magnetic head in two intersecting directions.

According to this invention, since the magnetic head for information recording or information reading can freely move within the same plane, the magnetic information format (information recording position, recording direction, etc.) recorded on the magnetic recording medium is The information can be set freely, making it difficult for conventional devices to tamper with information such as reading or rewriting the information, resulting in improved safety and other remarkable effects that achieve the purpose of the invention.

<Description of Embodiments> FIG. 1 shows an example of a schematic configuration of a magnetic information reading/writing device according to the present invention.

The illustrated device has a magnetic head 2 for information recording and information writing attached to the lower surface of a head holder 11, and the head holder 11 in two directions perpendicular to each other (two directions indicated by XY in the figure). and a head moving mechanism that moves the head. For example, a magnetic card 1 having a magnetic coating film formed on its surface is placed below the magnetic head 2, and magnetic information is recorded on the magnetic coating film by a magnetic head 2, or recorded information is recorded on the magnetic coating film. It is readable.

The head moving mechanism includes a first moving mechanism 4X for moving the magnetic head 2 in the X-axis direction, and a first moving mechanism 4X for moving the magnetic head 2 in the Y-axis direction.
and a second moving mechanism 4Y for moving in the axial direction, respectively. Y is a slide shaft 3X arranged along each direction of the X axis and Y axis
, 3Y, guide bodies 5X, 5Y slidably disposed on each slide shaft 3X, 3Y, and each guide body 5.
Stepping motors 6X, 6Y fixed to X, 5Y and capable of forward and reverse rotation, and leads connected to each stepping motor 6X, 6Y via a rotation transmission mechanism consisting of driving gears 7X, 7Y and driven gears 8X, BY. Shaft 9X, 9Y
This includes:

The lead shafts 9X, 9Y have lead screws IOX, IOY carved on their outer peripheral surfaces, and the lead shafts 9X, 9Y are brought close to each other in the vertical direction so as to intersect at right angles, and the head holder 11 is positioned at the intersection thereof. There is. This head holder 11 has the lead shafts 9X, 9
A screw that engages with the lead screws 10X and 10Y is carved into the hole where Y was inserted, so that the lead shaft 9X,
When 9Y rotates, head holder 11 moves on lead shafts 9X and 9Y depending on the direction of rotation.

For example, the stepping motor 6X of the first moving mechanism 4X
When the gear rotates in the forward direction, the rotation is transmitted to the lead shaft 9X by the drive gear 7X and the driven gear 8X, and the lead shaft 9X rotates in the forward direction. This forward rotation of the lead shaft 9X causes the head holder 6 to move in the forward direction, thereby achieving movement of the magnetic head 2 in the X-axis direction. In this case, as the head holder 11 moves, the lead shaft 9Y also moves together, so that the second moving mechanism 4Y slides on the slide shaft 3Y without resistance. The operation of the second moving mechanism 4Y is similar to that described above, and in this way, the magnetic head 2 can freely move in both the X7 axis directions.

In this way, the magnetic head 2 described above allows the magnetic heads 2 to
As in the format example (3), magnetic information can be written or read at any position and in any direction on the magnetic card l. In FIG. 2, FIG. 2(1) shows an example of a formant having three stages of information recording sections 12.
) is an example of a format having an information recording section 12 spanning two stages, and FIG. An example format is shown for each. In the figure, the vertical stripes of each recording section 12 indicate the direction of the gap of the magnetic head 2.

FIG. 3 shows the side numbers of the circuit configuration of the above device example.

In the figure, CPU (Central Process
ing Unit) 13 is RAM (Rando
m Access Memory), ROM (
A computer is configured together with a memory 14 such as (read only memory), and this CPU 3
The stepping motors 6X, 6Y and the magnetic heald 2 are connected to each other via an interface 14. Based on the program stored in the memory 14, the CPU sequentially controls various processing operations such as reading/determination of magnetic information by the magnetic head 2, recording, and forward/reverse rotation of the stepping motors 6X, 6Y.

FIG. 4 shows the control processing operation when writing is performed by the apparatus of the present invention, and FIG. 4 will be explained below with reference to the format example shown in FIG. 2 (1). In FIG. 2, the symbols ■, ■, ■ and each arrow indicate each position and recording direction of the magnetic information recording section 12, respectively, and (0.
0) is the coordinate of the initial position (origin) of the magnetic head 2, for example (■Xs, ■Ys) is the coordinate of the recording start position of the magnetic information recording section 12, and (■Xe, ■Ye) is the coordinate of the recording start position of the magnetic information recording section 12. The coordinates of the recording end position are shown respectively.

First, at the start, the magnetic head 2 is located at the initial position (0, O) of the magnetic card 1.

Since the write process is now performed using this magnetic disk 2, step 1 (indicated by rSTIJ in the figure) becomes "YES", and in the next step 2, the position and recording direction (positive direction) of the information recording section 12 shown in (■) are determined. to decide. ■ Information recording section 1
2 does not move in the Y-axis direction, so step 2 is “NO”
Then, proceed to step 6. In this step 6,
The stepping motor 6x is turned on (forward rotation) to move the magnetic head 2 in the axial direction (positive direction), and in the following step 7, the magnetic head 2 is moved to the recording end position of the information recording section 12 (■Xe, O). magnetic information is recorded while moving the When the recording end position (■Xe, Q) is reached, the stepping motor 6X is stopped in step 8, and the recording in the information recording section 12 of (■) is completed. The next step 9 is
It is determined whether the write process is completed or not, and in this example, the next item (2) is recorded in the information recording unit 12, so step 9 becomes "No'" and the process returns to step 2.

In step 2, since the recording start position of the information recording unit 12 in (■) is (■Xs, ■Ys), movement in the Y-axis direction is necessary, so step 2 is "YES", and step 3 is Stepping motor 6Y turns on (forward rotation),
The magnetic helad 2 moves in the Y-axis direction (positive direction). Then, the magnetic head 2 moves to the recording start position of the information recording section 12 (■
XS, ■Ys), the next step 4 makes a determination of "Is this the indicated position?"``YES'', and the next step 5 stops the stepping motor 6Y. Since the information recording section 12 (■) records in the X-axis direction (positive direction), the stepping motor 6x is turned on (forward rotation) in the next step 6, and the magnetic head 2 is rotated in the X-axis direction in the following step 7.
Information writing processing is executed while moving in the axial direction (positive direction). Then, the magnetic head 2 moves to the recording end position of the information recording section 12 (■Xe).

(2) When reaching (Ye), the stepping motor 6X stops in the next step 6. In this example, since there is further recording in the information recording unit 12 of (■), the determination of "Is writing complete?" in the next step 7 is "No", and step 2
Return to

Similarly, in steps 1 to 5, the magnetic head 2 is moved to the recording start position of the information recording section 12 (■Xs).

(2) YS), and in the following steps 6 to 8, the magnetic disk 2 is moved to the recording end position (2) Xe, (2) Ye, and information input processing is executed.

In this way, when the writing in the information recording section 12 of (3) is completed, the next step 9, "Writing complete?", becomes "YES", and the magnetic head 2 is returned to the initial position in step 10, and a series of steps are performed. The write operation is complete.

FIG. 5 shows a control flow in a read operation, and this control flow consists of the same procedures as the control flow in FIG. The explanation thereof will be omitted.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the overall configuration of the device according to the present invention;
Fig. 2 is a diagram showing an example of the card face format showing the information recording state of a magnetic card applied to this device, Fig. 3 is a circuit block diagram of the device of this invention, and Fig. 4 is a writing process using this device. FIG. 5 is a flowchart of the control operation when performing a reading process. 1... Magnetic card 2... Magnetic head 4X,
4Y...Moving mechanism patent Applicant: Tateishi Electric Co., Ltd. , 4 vol. 881
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Claims (3)

[Claims] (1) A device for recording magnetic information on a magnetic recording medium or reading the magnetic information, including a magnetic head for recording information or for reading recorded information, and a device that independently rotates the magnetic head in two intersecting directions. A magnetic information reading/writing device comprising: a moving mechanism for moving the magnetic information; (2) The magnetic information reading/writing device according to claim 1, wherein the magnetic recording medium is a magnetic card having a magnetic coating film formed on one surface thereof. (3) The magnetic information reading/writing device according to claim 1, wherein the magnetic head and the moving mechanism are controlled by a computer.