JP2002007983A - Magnetic signal generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnetic signal generating device whose magnetic signal generated based on information in an information storage means may be read by a conventional magnetic signal reading device, and capable of improving security by generating the signal only when it is needed. SOLUTION: The magnetic signal generating device 1 producing the magnetic signal 29 which may be read by the magnetic signal reading device 19 for reading the magnetic signal 29 comprises a substrate 7, the information storage means 17 for storing information, converting means 15, 25, 27 for converting to the magnetic signal 29 based on the information stored in the information storage means 17, and a magnetic signal producing means 3 for producing the magnetic signal 29 which is mounted on the surface 9 of the substrate 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic signal generator for generating a magnetic signal.

[0002]

2. Description of the Related Art In recent years, various information has been exchanged due to the development of the information industry. Conventionally, information exchange using a card-shaped information recording medium has been popular for such information exchange. In a bank card or the like, a magnetic card that exchanges information using magnetism is used.
The magnetic card is coated with a magnetic medium and writes a necessary magnetic signal to the magnetic medium to generate a magnetic signal to a magnetic card reader. Further, in recent years, magnetic cards have been enhanced in function, and it has been necessary to respond to requests for providing an identity authentication function to the card itself.
This is to prevent information recorded on the magnetic card from being read even when the magnetic card is lost, for example. Therefore, it is desired that a magnetic card generate information and a magnetic signal corresponding to the information on the card surface only when necessary.

[0003] An application similar to this is, for example, a storage medium having a built-in semiconductor memory for storing information.
This storage medium does not normally have its information generated on its surface. This recording medium is mounted on an adapter (auxiliary device) in the form of a flexible disk such as a floppy (registered trademark) disk. When the adapter with the recording medium mounted thereon is mounted on a flexible disk drive, a magnetic signal is generated on its surface, and the magnetic signal is read by a magnetic head of a magnetic card reader.

As another application similar to the above, for example, an auxiliary device is commercially available which converts music information of a compact disc in an audio player drive into an electromagnetic wave and supplies it as a magnetic signal to a magnetic head of a cassette drive.

[0005]

However, what is common in these auxiliary devices is that the built-in magnetic head for generating a magnetic signal has a single gap, so that the magnetic head on the reading side and the magnetic head on the reading side have a single gap. This means that the positions of the magnetic gaps are made to coincide with each other to transmit and receive magnetic signals. This magnetic head electromagnetically converts an electric signal, which is information stored in a semiconductor memory, into a magnetic signal. On the other hand, the magnetic card reads the magnetic signal recorded in the longitudinal direction of the magnetic card by moving the card-shaped base itself with respect to the magnetic card reader in order to read the magnetic signal recorded in the longitudinal direction, for example. . When the magnetic head performs reading, the magnetic signal generating portion of the magnetic card is limited to a magnetic gap portion arranged at a fixed position on the magnetic card. For this reason, when it is necessary to scan the magnetic card corresponding to the function of the conventional magnetic card reader,
Since the position of the magnetic signal generating head accompanying the movement of the magnetic card and the position of the read magnetic head on the magnetic card reader side are separated by scanning, the magnetic signal cannot be read. In order to prevent this, for example, if the magnetic gap of the magnetic head is widened so as to correspond to the card scanning range corresponding to the magnetic signal recording portion of the conventional magnetic card, the magnetic field of the magnetic signal becomes very weak, and the magnetic head becomes magnetic. The sensitivity for detecting was insufficient, and the magnetic signal could not be read.

Therefore, the present invention solves the above-mentioned problems, and a magnetic signal generated based on information in an information storage means can be read by a conventional magnetic signal reader, and generates the magnetic signal only when necessary. Accordingly, it is an object of the present invention to provide a magnetic signal generator capable of improving security.

[0007]

According to the first aspect of the present invention, there is provided a magnetic signal generator for generating a magnetic signal which can be read by a magnetic signal reader for reading a magnetic signal. An information storage unit for storing information; a conversion unit for converting the information into the magnetic signal based on the information stored in the information storage unit; and a magnetic unit provided on the surface of the base and generating the magnetic signal. This is achieved by a magnetic signal generating device comprising: signal generating means. According to the configuration of the first aspect, the information storage means stores predetermined information. The conversion means converts the information into a magnetic signal based on the information stored in the information storage means. A magnetic signal generating means for generating a magnetic signal is provided on the surface of the card-shaped base. The magnetic signal generating means generates a magnetic signal converted by the converting means. The magnetic signal reader can read the magnetic signal generated by the magnetic signal generating means. This magnetic signal reader is, for example, a card reader that reads information from a conventionally used magnetic card, and does not need to have a special function. Therefore, in the magnetic signal generator, the information in the information storage means is read as a magnetic signal by the magnetic signal reader conventionally used. As described above, the magnetic signal generator does not generate a magnetic signal based on the information in the magnetic signal generating means in a normal state, but generates the information as needed. For this reason, the magnetic signal generator does not have a risk of reading the information even when it is passed to a third party, so that the security of the information can be improved and the reliability can be improved.

According to a second aspect of the present invention, in the configuration of the first aspect, the magnetic signal generating means is formed of a soft magnetic material provided on the base made of a nonmagnetic material having plasticity. And According to the configuration of claim 2,
In addition to the effect of the first aspect, since the non-magnetic material has plasticity, it is possible to prevent damage such as breakage of the base during carrying. Further, since the base is a non-magnetic material and the magnetic signal generating means is a soft magnetic material, it is easy to form the magnetic signal generating means on the surface of the base by plating or sputtering.

According to a third aspect of the present invention, in the configuration of any one of the first and second aspects, the soft magnetic body is formed along an uneven surface formed on the base, and the shape of the uneven surface is reduced. A plurality of magnetic gaps are formed accordingly. According to the structure of the third aspect, in addition to the function of any one of the first and second aspects, the discontinuous portion of the soft magnetic material acting as a magnetic gap is formed simply and continuously along the uneven surface of the base. be able to.

According to a fourth aspect of the present invention, in any one of the first, second and third aspects, the plurality of magnetic gaps are
It is characterized by being arranged in one direction so as to be parallel to each other. According to the configuration of claim 4, in addition to the effect of any one of claims 1, 2 and 3, the magnetic signal reading device can adjust the scanning direction to any one of the magnetic gaps if the scanning direction is aligned with the arrangement direction of the magnetic gaps. Thus, the magnetic signal generated can be reliably read.

According to a fifth aspect of the present invention, in any one of the first, second, third, and fourth aspects, the plurality of magnetic gaps are not less than 12 degrees with respect to a vertical direction of their arrangement direction.
It is characterized in that it is formed to have an azimuth angle of 5 degrees or less. According to the configuration of claim 5, claim 1,
By providing an azimuth angle in addition to any one of 2, 3, and 4, the discreteness of the magnetic signal in the position between the read head and the magnetic gap in the magnetic signal reader is prevented,
When the azimuth angle is set to 12 degrees or more and 65 degrees or less, the magnetic signal reader can reliably read the magnetic signal. Here, the reason why the azimuth angle is set to 12 degrees or more is to provide continuity of the magnetic signal.
This is to prevent the transmission efficiency of the magnetic signal from being weakened.

The invention of claim 6 is the first, second, third and fourth aspects of the present invention.
In any one of the configurations of (1) and (5), an interval between the adjacent magnetic gaps is 1.5 mm or less. According to the configuration of claim 6, in addition to the effect of any one of claims 1, 2, 3, and 4, interruption of the magnetic signal read by the magnetic signal reader is prevented, and continuity of transmission of the magnetic signal is ensured. can do. According to the configuration of claim 6, in addition to the effect of claim 5, even when the azimuth angle is limited, the magnetic signal reader can be used in accordance with the read width of the read head of the current magnetic signal reader. The interruption of the magnetic signal to be read can be prevented, and the continuity of the transmission of the magnetic signal can be ensured.

According to a seventh aspect of the present invention, there is provided an image processing apparatus comprising:
In any one of the constitutions 4, 5, and 6, the magnetic gaps are regularly arranged. According to the configuration of claim 7, in addition to the effect of any one of claims 1, 2, 3, 4, 5, and 6, the intensity of the magnetic signal read by the magnetic signal reader is stabilized, and the magnetic signal is reliably transmitted. Be able to read.

According to an eighth aspect of the present invention, in any one of the first to seventh aspects, the base has a card shape. According to the configuration of claim 8, in addition to the effect of any one of claims 1 to 7, the card-shaped magnetic signal generating device has, for example, substantially the same shape and specifications as a magnetic card that has been widely used in the past. For example, a magnetic signal can be read by a magnetic card reader as a conventional magnetic signal generator.

According to a ninth aspect of the present invention, in the configuration of the eighth aspect, there is provided a switching means provided on an outer edge of the base for starting generation of the magnetic signal. According to the configuration of the ninth aspect, in addition to the function of the eighth aspect, when the magnetic signal generator is brought closer to the magnetic signal reader, the switching means is operated. By operating the switching means, the magnetic signal generator generates information in the information storage means. Therefore, the magnetic signal generator can generate a magnetic signal in accordance with the read timing of the magnetic signal reader.

According to a tenth aspect of the present invention, in the configuration of the ninth aspect, the magnetic signal generating means generates the magnetic signal within 0.06 seconds. According to the configuration of claim 10, in addition to the effect of claim 9, a general magnetic signal reading device can read a magnetic signal in about 0.1 second, so that a magnetic signal generating device can The magnetic signal can be generated within the read time of the magnetic signal reader.

[0017]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limits are given, the scope of the present invention is not limited to these modes unless otherwise specified in the following description. FIG. 1 is a perspective view showing a configuration example of a magnetic signal generator 1 and a magnetic signal reader 19 as a preferred embodiment of the present invention. FIG. 2 is a side view showing a configuration example when the magnetic signal generator 1 and the magnetic signal reader 19 of FIG. 1 are viewed from the FR direction. The magnetic signal generator 1 has, for example, a card-shaped base 7, and the magnetic signal generator 3 is provided on at least one surface 9 of the base 9. This base 7
Is a non-magnetic material having plasticity, for example, as a material thereof, a material having plasticity such as plastic or metal such as epoxy or polyimide, and is advantageous in terms of cost and workability when plasticity is not emphasized so much. Examples include glass, ceramics, and non-magnetic metals. When the base material 7 has plasticity as described above, it is possible to cope with a use environment in which the magnetic signal generator 1 is carried, and to prevent damage due to distortion or the like.

The magnetic signal generator 3 is a part that generates a magnetic signal. The magnetic signal generation unit 3 is provided, for example, in an elongated shape along the longitudinal direction at the outer edge of the base 7. The magnetic signal generator 3 is made of, for example, a soft magnetic material, and is preferably made of, for example, a metal soft magnetic material such as an amorphous material that does not require annealing. In the magnetic signal generating section 3, the metal soft magnetic material or the like is formed by, for example, plating or sputtering. Further, if plastic is used as the material of the base 7 as described above,
The stamp technology can be used to form a soft magnetic material. Here, the "stamp technique" refers to a technique of pressing a mold having a convex shape at a portion corresponding to the magnetic gap 23 in FIG. 6 while heating a plastic substrate such as plastic to form a concave shape on the substrate. Say.
By using such a stamp technique, the productivity of the magnetic signal generator 1 can be increased. Also, by forming a concave shape on the substrate using this stamp technology and forming a soft magnetic material on the surface, the concave portion of the magnetic circuit having the magnetic gap 23 becomes magnetically discontinuous, and the Can have an effect.

It is desirable that the magnetic signal generating section 3 has plasticity. This is because it corresponds to the use environment in which the magnetic signal generator 1 is carried, and can be prevented from being damaged by distortion or the like.

On the other hand, the magnetic signal reader 19 is, for example, a conventionally used magnetic card reader for reading magnetic signals. The magnetic signal reader 19 is a reader for reading information stored in a card-like information storage medium such as a bank cash card, a credit card, a debit card, and an ID (IDentification) card.

The magnetic signal reader 19 has a rectangular parallelepiped structure in which a substantially U-shaped groove 21 is formed. This groove 2
1 has a width such that the magnetic signal generator 1 can pass through. Further, as shown in FIG. 2, a magnetic head 5 is provided on an inner peripheral surface of the groove 21 at a portion where the magnetic signal generating section 3 passes. The magnetic head 5 has a function of reading at least a magnetic signal generated in the magnetic signal generator 3 of the magnetic signal generator 1. Note that the magnetic signal generator 1
It may be manually moved in the S direction, or may be mechanically moved in the S direction.

FIG. 3 is a side view showing an example of a state when the magnetic signal generator 3 and the magnetic head 5 of the magnetic signal generator 1 of FIG. 1 are viewed from the BA direction, and FIG. FIG. 3 is a side view showing an example of a state when the magnetic signal generating unit 3 and the magnetic head 5 of the magnetic signal generating device 1 are viewed from the BO direction. The magnetic head 5 is configured such that the magnetic signal generator 1
1, while facing the magnetic signal generator 3, as shown in FIG. That is, as shown in FIG. 4, the magnetic signal generator 3 of the magnetic signal generator 1 is moved in the S direction along the magnetic head 5 so as to keep a certain interval. The magnetic head 5 has a magnetic core 5b and a coil 5a wound on the magnetic core 5b. The magnetic core 5 is partially provided with a notch, and detects a magnetic field (magnetic signal) generated in the magnetic signal generating unit 3 from the notch.

Next, a detailed configuration example of the magnetic signal generator 3 in the magnetic signal generator 1 will be described. FIG.
FIG. 6 is a plan view illustrating a configuration example of a front surface 9 of the magnetic signal generator 1 of FIG. 1, and FIG. 6 is a plan view illustrating a configuration example in which the magnetic gap 23 of FIG. 5 is enlarged. As shown in FIG. 5, the magnetic signal generator 3 is arranged in a band in one direction so that the plurality of magnetic gaps 23 are parallel to each other. The magnetic gap 23 is an element that generates a magnetic signal at each scanning time with respect to scanning of the magnetic head 5 built in the magnetic signal reader 19. As shown in FIG. 6, the magnetic head 5 has at least one contact point with the magnetic gap 23 within the track width Tw, and can maintain the continuity of the magnetic signal. Further, as shown in FIG. 5, the magnetic gaps 23 are regularly arranged. If the magnetic gaps 23 are regularly arranged in this manner, the strength of the magnetic field (magnetic signal) read by the magnetic signal reader 19 is stabilized, and the magnetic signal can be read reliably.

The magnetic gap 23 is arranged so as to maintain the azimuth angle α with respect to the vertical direction of the S direction as the arrangement direction. The azimuth angle α is maintained as described above because the magnetic gap 23 is parallel to the magnetic gap of the magnetic head 5 (that is, the magnetic gap 23 exists perpendicular to the scanning direction S). 5
This is for avoiding that the magnetic signal can be sensed only at discrete moments in which the magnetic gap is present in the gap width of the magnetic gap 23. That is, this is to enable the magnetic head 5 to stably detect the magnetic signal.

The azimuth angle α is 12 degrees or more and 6 degrees or more.
It is desirable that it is 5 degrees or less. Where azimuth angle α
Is set to 12 degrees or more because the efficiency loss between the magnetic signal generator 3 on the magnetic signal generator 1 side and the magnetic head 5 on the magnetic signal reader 19 due to the azimuth effect is suppressed to about 80%, This is to prevent errors due to deterioration of the magnetic field and to provide continuity of the magnetic signal, that is, to avoid discreteness of the magnetic signal. The reason why the angle is set to 65 degrees or less is to prevent the transmission efficiency of the magnetic signal between the magnetic signal generating unit 3 and the magnetic head 5 from being weakened. When the azimuth angle α is set in this manner, the magnetic signal generator 1 can reliably transmit a magnetic signal having continuity to the magnetic signal reader 19.

The distance between adjacent magnetic gaps 23 is preferably, for example, 1.5 mm or less. The reason why the intervals are set in this way is that various magnetic signal readers 19 continuously output magnetic signals even when the track width Tw of the magnetic head 5 is narrow in a state where the azimuth angle α of the magnetic gap 23 is maintained. This is to enable reading. That is, specifically, the width of the magnetic signal generating unit 3 (length in the vertical direction in the S direction) is at least about 6 mm, but the track width Tw of the magnetic head 5 of the magnetic signal reader 19 is about 1 mm. This is because the magnetic signal reader 19 may have difficulty reading a magnetic signal depending on the distance between adjacent magnetic gaps 23.

Further, it is desirable that the interval between the adjacent magnetic gaps 23 is not more than the track width Tw · sin α. However, if the interval between the adjacent magnetic gaps 23 is too short, the magnetic resistance of the magnetic gap 23 increases, and the electric power required to give a specified output to the magnetic head 5 of the magnetic signal reader 19 increases. Become. For this reason, in the magnetic signal generator 1, for example, power consumption with respect to the capacity of a built-in battery poses a problem. Therefore, the minimum value of the track width Tw of the magnetic head 5 should be set in consideration of this.

When the track width Tw is set as described above, the magnetic head 5 moves the track width Tw as shown in FIG.
Is always in contact with at least one magnetic gap 23 (range β), the continuity of transmission of the magnetic signal to be read can be reliably ensured. still,
The case where the magnetic head 5 does not contact the magnetic gap 23 within the track width Tw means that the magnetic gap 23 is interrupted in the S direction in the range β as shown in FIG.

Here, the magnetic signal generator 1 preferably has a trigger switch 11 (switching means) shown in FIG.
Having. The trigger switch 11 is a switch for generating a trigger signal for causing the magnetic signal generation unit 3 to start generating a magnetic signal. The trigger switch 11 is provided at any place of the base 7, for example, at an outer edge of the base 7. When such a trigger switch 11 is provided, the magnetic signal generating device 1 can
A magnetic signal can be generated in accordance with the read timing of the data.

FIG. 10 is a block diagram showing an example of an electrical configuration of the magnetic signal generator 1, and FIG. 11 is an enlarged view showing an example of a magnetic signal 29 generated in the magnetic signal generator 3. The magnetic signal generator 1 includes a magnetic signal generator 3, a magnetic core 27 (conversion unit), a coil 25 (conversion unit), a signal processing unit 15 (conversion unit), an information storage unit 17 (information storage unit), and a battery 13. Have. The magnetic signal generation unit 3
It has a plurality of magnetic gaps 23 as described above. The information storage unit 17 is a memory for storing information to be generated in the magnetic signal generation unit 3, and is composed of, for example, a semiconductor memory, and depends on the necessity of rewriting information and the importance of holding information, a RAM (Random Access Memory).
y), FRAM (Ferroelectric Ran)
dom Access Memory), ROM (Re
ad Only Memory) is used. Examples of the information stored in the information storage unit 17 include information included in a bank cash card, a credit card, a debit card, and other information on an ID card.

The signal processing section 15 conducts an electric signal to the coil 25 based on the information stored in the information storage section 17. The coil 25 is wound around a part of the magnetic core 27, and converts the electric signal conducted to the coil 25 into an electromagnetic signal and supplies the electric signal to the magnetic signal generating unit 3. As shown in FIG. 11, the magnetic signal generator 3 forms a magnetic signal 29 having a magnetic field serving as a leakage magnetic field between the magnetic gaps 23.
As described above, the magnetic signal 29 is a magnetic signal that can be read by the magnetic head 5 of the magnetic signal reader 19 of FIG. Then, the battery 13 in FIG. 10 is connected to the signal processing unit 15 and the information storage unit 17 and supplies power to them.

The magnetic signal generator 1 is configured as described above. Next, an example of a method for manufacturing the magnetic signal generator 1 will be described. In the present embodiment, a glass substrate (not shown) was used to form the magnetic core 27 in FIG. This glass substrate is polished to a surface roughness of about 10 nm on the surface on which the soft magnetic material 35 is formed, and has a thickness of about 20 nm.
It is set to about 0 μm. The glass substrate has a length (about 85 mm and a width of about 8 mm) whose outer shape corresponds to the magnetic signal generating section 3, and a length (10 mm) connecting the magnetic signal generating section 3 and the coil 25 to both sides of this side. , About 15 mm in width), and forms the base of the magnetic core 27 by forming the U-shape including the magnetic connection portion 31. Note that one side of the glass substrate corresponding to the length of the magnetic signal generating section 3 corresponds to a portion where the coil 25 is wound.

On the other hand, on the surface 9 (film formation surface) of the base 7 shown in FIG. 12, the width of the magnetic signal generating section 3 is about 50 μm, the azimuth angle α 45 degrees, which is an angle from the width direction, and the depth 1
Grooves 33 having a size of about 00 μm and a spacing of about 1 mm are formed by grinding.

Further, the glass substrate is a coil 2 shown in FIG.
A portion having a length of 85 mm and a width of 10 mm corresponding to the portion where the winding 5 is performed is formed with the same thickness and surface roughness as those of the base material 7. The soft magnetic material 35 is formed on the film forming surfaces of both the glass base material and the base material 7. Soft magnetic material 3 on substrate 7
When the magnetic signal generating portion 5 is formed, the magnetic signal generating portion 3 including the plurality of magnetic gaps 23 is formed on the base material 7. The soft magnetic body 35 in FIG. 12 is formed to a thickness of about 20 μm, and the material thereof is, for example, Co—Fe—Ni—P.
By using such a material, heat treatment at the time of forming a film of the magnetic material 35 to be softened can be reduced.
Since the glass substrate is thin, it is desirable to avoid heat treatment. Further, the soft magnetic body 35 may be formed by a sputtering method as long as the material is soft magnetic without heat treatment. As shown in FIG.
A coil 25 is wound on a glass substrate for winding the coil. The coil 25 is configured by winding a winding material having a wire diameter of, for example, about 60 microns about 200 times.

On the other hand, on both ends of the magnetic signal generating section 3 on the base 7, a magnetic connecting section 31 is superposed, and a coil 25 is formed.
The glass substrate (winding part) on which is wound is electrically connected. Further, an information storage unit 17 (semiconductor memory), a battery 13, and a signal processing unit 15 are embedded in the base 7, and an input unit (not shown) for selecting magnetic information or authenticating a person is embedded therein. In order to prevent the formed soft magnetic material from being damaged, the magnetic signal generating unit 3 is packaged so that it appears on the surface 9 in a state where the protective seal is covered.

Next, an example of a method for manufacturing the magnetic signal generator 3 will be described. FIG. 12 is a CC ′ cross-sectional view showing an example of a cross-sectional configuration of the magnetic signal generator 3 in FIG. The magnetic signal generator 3 is mainly made of a soft magnetic material as described above, and this soft magnetic material is formed along the uneven surface formed on the surface 9 of the base 7. The soft magnetic material forms a plurality of magnetic gaps 23 according to the shape of the uneven surface of the surface 9 of the base 7. When the magnetic gap 23 is formed in this manner, the discontinuous portion of the soft magnetic material acting as the magnetic gap 23 in the magnetic signal generating section 3 is formed simply and continuously along the uneven surface. Thus, the magnetic signal generator 3 is manufactured.

The magnetic signal generator 1 and the like are configured as described above. Next, an example of the operation will be described with reference to FIGS. Predetermined information is stored in the information storage unit 17 of FIG. In order to read this information, the magnetic signal generator 1 is manually operated, for example, by the magnetic signal reader 19.
Through the groove 21 in the S direction. At this time, in the magnetic signal generator 1, preferably, the trigger switch 11 shown in FIG. When the trigger switch 11 is turned on, the information stored in the information storage unit 17 is read by the signal processing unit 15. The signal processing unit 15 converts the read information into an electric signal,
It conducts to the coil 25. The coil 25 is wound around the magnetic core 27, and causes the magnetic signal generator 3 to generate a magnetic signal via the magnetic core 27.

On the other hand, the magnetic head 5 is provided in the groove 21 of the magnetic signal reader 19, and the magnetic signal generator 3 of the magnetic signal generator 1 passes while facing the magnetic head 5. Since the magnetic signal generator 3 has the plurality of magnetic gaps 23 appropriately arranged as described above, continuity of transmission of the magnetic signal 29 can be ensured. Also,
The magnetic head 5 of the magnetic signal reader 19 can reliably read the magnetic signal 29 generated in the magnetic signal generator 3.

The magnetic signal generator 1 preferably has a magnetic signal 29 based on information in the information storage section 17 of 0.06.
It is desirable for the magnetic signal to be generated in the magnetic signal generator 3 within seconds. Since the general magnetic signal reader 19 can read a series of magnetic signals 29 in about 0.1 second, the magnetic signal generator 1 can read the magnetic signals within the read time of the general magnetic signal reader 19. Can occur. Therefore, the magnetic signal reader 19 can reliably read the series of magnetic signals 29.

According to the preferred embodiment of the present invention, the magnetic signal generated based on the information stored in the information storage section 17 can be read by the conventional magnetic signal reader 19. In addition, the magnetic signal generator 1 can improve the security of information by generating the magnetic signal to the magnetic signal generator 3 only when necessary. Specifically, the magnetic signal generating device 1 stores information corresponding to magnetic information included in various existing magnetic cards such as credit cards and bank cash cards,
The information can be transmitted to a conventional magnetic card reader (magnetic signal reader 19). Therefore, the magnetic signal generating device 1 can fulfill the function as an intelligent card if it has a card shape, for example.

Further, the magnetic signal generator 1 uses the trigger switch 11 to recognize the scanning of the magnetic signal generator 3 of the magnetic signal generator 1 and starts output, and the output period is set to 0.06 seconds. By setting, it is possible to generate a magnetic signal that can be signal processed in response to a somewhat faster manual scanning operation. The magnetic signal generating unit 3 includes a plurality of magnetic gaps 2 each having an azimuth angle α configured to correspond to a scanning operation.
3 Therefore, the magnetic signal generating device 1 can stably and continuously supply the information in the information storage unit 17 to the magnetic head 5 on the magnetic signal reading device 19 side even during the scanning with the position movement. Also, the magnetic signal generator 1
Enables generation of a magnetic signal based on necessary information selected from a large number of pieces of information stored in the information storage unit 17,
In addition, for example, if information relating to personal authentication is stored in the information storage unit 17 of the magnetic signal generator 1 and the magnetic signal reader 19 is provided with a personal authentication function, a magnetic card (magnetic signal The generator 1) can be configured at low cost. Further, the magnetic signal generator 1 is less likely to be damaged because the base 7 has appropriate plasticity.

The present invention is not limited to the above embodiment. Each configuration of the above embodiment can be partially omitted or arbitrarily combined so as to be different from the above. Further, the magnetic signal reading device 19 is not limited to a system for reading the magnetic signal of the magnetic signal generating unit 3 by moving the magnetic signal generating device 1 itself as described above, and also fixing the magnetic signal generating device 1 shown in FIG. A method may be used in which the magnetic signal of the magnetic signal generating unit 3 is read by the magnetic head 5 moving in the S direction.

[0043]

As described above, according to the present invention,
A magnetic signal generating device capable of reading a magnetic signal generated based on information in an information storage means by a conventional magnetic signal reading device, and improving the security by generating the magnetic signal only when necessary. Can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration example of a magnetic signal generator and a magnetic signal reader as a preferred embodiment of the present invention.

FIG. 2 is a side view showing a configuration example when the magnetic signal generator and the magnetic signal reader of FIG. 1 are viewed from the FR direction.

FIG. 3 is a side view showing an example of a state when the magnetic signal generating unit and the magnetic head of the magnetic signal generating device of FIG. 1 are viewed from the BA direction.

FIG. 4 is a side view showing an example of a state when the magnetic signal generator and the magnetic head of the magnetic signal generator of FIG. 1 are viewed from the BO direction.

FIG. 5 is a plan view showing a configuration example of the surface of the magnetic signal generator of FIG. 1;

FIG. 6 is a plan view showing a configuration example in which the magnetic gap of FIG. 5 is enlarged.

FIG. 7 is a plan view showing a configuration example in which a magnetic gap is enlarged.

FIG. 8 is a plan view showing a configuration example in which a magnetic gap is enlarged.

FIG. 9 is a plan view showing an example in which a trigger switch is provided on the surface of the magnetic signal generator.

FIG. 10 is a block diagram showing an electrical configuration example of a magnetic signal generator.

FIG. 11 is an enlarged view showing an example of a magnetic signal generated in a magnetic signal generator.

FIG. 12 is a cross-sectional view taken along the line CC ′ showing an example of a cross-sectional configuration of the magnetic signal generation unit in FIG. 11;

FIG. 13 is a perspective view showing another configuration example of the magnetic signal reader.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Magnetic signal generator, 3 ... Magnetic signal generation part (magnetic signal generation means), 7 ... Base, 9 ... Surface,
11 ... trigger switch (switching means), 15
... Signal processing section (conversion means), 17 ... information storage section (information storage means), 19 ... magnetic card reader (magnetic signal reader), 23 ... magnetic gap, 25 ...
Coil (conversion means), 27: magnetic core (conversion means), 29: magnetic signal, S: scanning direction (one direction), α: azimuth angle

Claims (10)

[Claims] 1. A magnetic signal generator for generating a magnetic signal readable by a magnetic signal reader for reading a magnetic signal, comprising: a base; information storage means for storing information; and information stored in the information storage means. A magnetic signal generator configured to convert the magnetic signal into the magnetic signal based on the information; and a magnetic signal generator provided on a surface of the base and generating the magnetic signal. 2. The magnetic signal generating apparatus according to claim 1, wherein the magnetic signal generating means is formed of a soft magnetic material provided on the base made of a nonmagnetic material having plasticity. . 3. The soft magnetic body is formed along an uneven surface formed on the base, and a plurality of magnetic gaps are formed according to the shape of the uneven surface. Item 3. The magnetic signal generator according to any one of Items 1 and 2. 4. The magnetic signal generator according to claim 1, wherein the plurality of magnetic gaps are arranged in one direction so as to be parallel to each other. 5. The magnetic gap according to claim 1, wherein the plurality of magnetic gaps have an azimuth angle of not less than 12 degrees and not more than 65 degrees with respect to a direction perpendicular to their arrangement direction. The magnetic signal generator according to any one of items 3 and 4. 6. The method according to claim 1, wherein an interval between adjacent magnetic gaps is 1.5 mm or less.
The magnetic signal generator according to any one of 3, 4, and 5. 7. The magnetic signal generator according to claim 1, wherein the magnetic gaps are regularly arranged. 8. The magnetic signal generating device according to claim 1, wherein the base has a card shape. 9. The magnetic signal generator according to claim 8, further comprising a switching unit provided on an outer edge of the base and for starting generation of the magnetic signal. 10. The magnetic signal generator according to claim 9, wherein the magnetic signal generator generates the magnetic signal within 0.06 seconds.