JPH0276124A - Magnetic card and magnetic card issuing device - Google Patents

Abstract

PURPOSE:To form the magnetic card having a large memory capacity by providing circular tracks to the magnetic card applied with a magnetic material and storing data therein. CONSTITUTION:The circumferential magnetic tracks are constituted around a central point C and are magnetized by specifying the magnetization pitch to the density corresponding to 210BPI/75BPI specified in JIS (Japanese Industrial Standards) to obtain prescribed recording capacity. The length of the tracks is 119mm if the diameter of the circumferential tracks is specified to 38mm. The number of the characters which can be recorded is then increased to 1.7 times the number of the tracks which can be recoded to the linear tracks of the conventional magnetic card of a name card type. The region for recording is increased in this way and the number of the characters which can be written on the magnetic card is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic card in which data is stored on a card made of plastic or the like coated with a magnetic material, and an apparatus for issuing the same.

Conventional technology In recent years, magnetic cards with monetary data stored in advance have been issued for use with telephones or to purchase tickets, and when this magnetic card is inserted into a telephone or ticket machine, the amount spent is stored on the magnetic card. So-called prepaid cards that update data are becoming popular.

An example of a conventional magnetic card of this type and its issuing device will be described below with reference to the drawings.

First, FIG. 6 is a plan view showing the configuration of a conventional magnetic card reader/writer. Here, 1 is a magnetic card, and 2 is a main body of a card reader/writer having a magnetic card transport section for transporting the magnetic card 1. 3 is a drive motor for conveying the magnetic card 1, and 4 is a worm gear for decelerating the motor and changing the direction of rotation to the direction of conveying the magnetic card shown by the arrow in the figure. Further, 5 is a rubber roller that conveys the magnetic card 1. 6 is a card insertion detector, and when the magnetic card 1 is inserted into the main body, the signal is detected and the motor 3 rotates, and the magnetic card is inserted into the innermost part, that is, until the card end detector 7 detects the magnetic card. Transport card 1. This magnetic head 8 contacts the magnetic card 1 and magnetically writes or reads data as the magnetic card 1 is transported. After the magnetic recording tracks 9 are formed, the magnetic recording material is transported reversely by the drive of the motor 3 and ejected from the main body 2 of the magnetic card reader/writer.

FIG. 7 shows an example of a card recorded using this method. The substrate 1a of the magnetic card is made of polyester or paper, and its thickness is generally 0.2 to 0.3 mm. There is also a type of magnetic layer provided with striped tracks 1d parallel to the longitudinal direction of the card, as shown in the left diagram of FIG.

Problems to be Solved by the Invention However, in this case, when a striped recording area is used, the effective track length is generally about 70 mm, and therefore the number of characters that can be recorded is limited to 40 to 70 characters. . For this reason, even if the number of required characters increases due to an increase in the types of magnetic cards, it may not be possible to handle the increase.

Means for Solving the Problem In order to solve this problem, the present invention stores data in circular tracks of a magnetic card.

Operation As described above, since the present invention writes data on circular tracks, the area for recording increases and the number of characters that can be written on the magnetic card increases.
EMBODIMENT OF THE INVENTION Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. First, Fig. 1 is a schematic diagram of a magnetic card reader/writer in an embodiment of the present invention, Fig. 2 is a sectional view of the rotary head of Fig. 1, and Fig. 3 is an equivalent circuit diagram of the signal system. . In FIG. 1, 1 is the main body of the magnetic card reader/writer, 3 is a drive motor, 4 is a t-m gear, and 5 is a rubber bar for contacting and conveying the magnetic card. Reference numeral 6 denotes a card insertion detector, which detects the insertion of a card simultaneously and drives the motor 3. Reference numeral 7 denotes a card end detector that detects when the magnetic card has been conveyed to the innermost position.The magnetic card 1 is set by this signal, and the rotating magnetic head 12 moves the magnetic card 1 to the circumferential track 1.
0 is formed.

FIG. 2 is a sectional view of the rotary head unit 12 in FIG. 1, and its configuration will be explained. 1 is a magnetic card. 13 is a magnet, and 14 is a coil. 1
Reference numeral 5.18 denotes an iron core, which forms a magnetic circuit, and the magnet 13 side rotates together with the shaft 19 depending on the phase of the current flowing through the coil 14. This rotation simultaneously rotates the turntable 21 on which the magnetic head 12 is mounted. 17
is a bearing and is supported on the fixed base 18. This fixed base 18 is fixed to the card reader/writer main body 2.

A magnetic signal from the magnetic card 1 is detected by a magnetic head 11 and coupled to wiring provided on a fixed base 18 by a rotary transformer 20.

Figure 3 shows the electrical equivalent circuit.
is coupled to the input of an amplifier 22 via a rotary transformer equivalent circuit 20.

In this case, the output of the amplifier is coupled to the rotary transformer side.

FIG. 4 is a block diagram showing the configuration of the card reader/writer of this embodiment. Here, 30 is a control unit that controls each device described later. 31 is random access memory,
Data read from the magnetic card 1 is stored, and data written to the magnetic card 1 is saved. 32 is a read-only memory which stores control programs etc. based on the control procedure to be performed by the control unit 30. 3 is a drive, which transports the magnetic card 1 by a motor. 7 is a card end detector, which is a drive motor. 3 detects that the magnetic card 1 conveyed to the back is conveyed to the back, and sends a signal to the control section 30. 34
The head 12 is rotated by a helad motor as shown in FIG. 35 is a modulation/demodulation circuit which modulates data to be written into the magnetic card 1 into a recording signal and demodulates a signal read from the magnetic card 1 into data.

FIG. 5 shows a magnetic card formed with tracks according to the present invention. As shown in the figure, it is possible to construct a circumferential magnetic track around the center line C. In this case, a predetermined recording procedure can be obtained by magnetizing at a density corresponding to the magnetization pitch of 210 BP 1/75 BP I specified by the JIS plan.

If the diameter of this circumferential track is 38 mm, the length of the track is 119 mm, and the number of characters that can be recorded is 1.7 times that of the linear track of a conventional business card type magnetic card.

Effects of the Invention As described above, according to the present invention, by making the recording area of the magnetic card into a circumferential track, it is possible to provide a magnetic card with a large storage capacity.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a magnetic card issuing device according to an embodiment of the present invention, FIG. 2 is a sectional view of the recording head portion of the magnetic card issuing device shown in FIG. 1, and FIG. 4 is a block diagram showing the configuration of this embodiment, and FIG. 5 is a plan view showing an example of a magnetic card-like track.
FIG. 6 is a schematic diagram showing an example of a conventional magnetic card reader/writer, and FIG. 7 is a plan view showing an example of a conventional magnetic card-like track. 1...Magnetic card, 7...Card end detection 12...Magnetic head, 14...Coil, 21...Turntable, Name of agent: Patent attorney Shigetaka Awano and one other person Figure 1, Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1) A magnetic card characterized in that data is stored in circular tracks on a magnetic card coated with a magnetic material. 2) data generating means for generating data to be recorded on a magnetic card; a rotary head for recording circularly on the recording surface of the magnetic card; and generating a write signal based on the data generated by the data generating means. The present invention is characterized by comprising a write signal generating means, a transmitting means for transmitting a signal generated by the write signal generating means to the rotary head, and a transport means for transporting the magnetic card with respect to the rotary head. magnetic card issuing device.