JPS61112287A - Information reading method of information recording medium - Google Patents

Abstract

PURPOSE:To discriminate easily a forged information recording medium by reading the 1st and 2nd information recorded in different ways and combining both information to decode the information having specific meaning. CONSTITUTION:Here a toll road ticket is taken as an example of a recording medium. A magnetic sensor 24 reads the printed design surface of the ticket at the exit of an interchange. The 1st magnetic read head 20 reads the magnetic stripe surface. The output of the sensor 24 is detected by a magnetic bar code detecting circuit 33 in the form of the 1st information; while the output of the head 20 is detected by a magnetic information reading circuit 36 as the 2nd information. These two types of information are calculated (addition, etc.) through an arithmetic circuit 37 for production of the input information.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for reading an information recording medium that can easily identify a forged information recording medium.

[Technical background of the invention and its problems] Information recording media, especially magnetic cards, have recently become widespread in transactions in various fields. By the way, even if the magnetic information recorded on a magnetic card cannot be visually observed from the outside, there is a risk that this magnetic information can be easily read using special equipment and misused by forging the magnetic card. There is.

However, the reality is that no measures have been taken to prevent counterfeiting of information recording media as described above, and it has been impossible to identify counterfeit information recording media.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for reading an information recording medium that can easily identify a forged information recording medium.

[Summary of the Invention] The outline of the present invention for achieving the above object is summarized in Section 1.1, which is recorded using different recording methods. It is characterized in that the second information is read and then information with a specific meaning is decoded by a combination of both pieces of information.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the embodiment described below, a toll road ticket P is used as the information recording medium, and the present invention is applied to a method for reading the toll road ticket P.

First, the pass P as an information recording medium will be explained with reference to FIG. In FIG. 1, this pass P has a magnetic stripe surface 30 and a printed design surface 31 formed thereon. First information is recorded on this print design surface 31 in advance using, for example, invisible magnetic ink. As an example, if the characters "Japan Highway Public Corporation" are printed on the print design surface 31, one or more predetermined characters among these six characters are further printed with magnetic ink. This magnetic ink information will be detected by a magnetic sensor, which will be described later.
and "public" are printed with magnetic ink, rl
, O, O, 0, 1, OJ are recorded. Passage tickets P each having a plurality of types of first information recorded therein are created in advance. Second information is recorded on the magnetic field 1 to the live surface 30, for example, at the entrance of an interchange.

This second information is stored in a magnetic write head (described later), for example, by F.
High-density recording is performed using the M method. Incidentally, at the entrance of the interchange, entrance information such as vehicle type information, entrance interchange number, September date, 1 hour, etc. will be recorded. In this embodiment, instead of recording the entrance information as it is as the second information, the entrance information is created by a combination of the previous first information and the second information recorded this time. Then, the second information is encrypted and recorded based on the relationship with the first information. To explain this with a simple example,
Said 1st. If the entrance information becomes meaningful only after the second information is added, the first. The second information and entrance information are as follows.

First information = (1,0,O,0,1,0)...(1
) Entrance information 1 = <1.1, 0.1.0.1 ) ・-・
...(2) Second information = (entrance information) - (first information) = (0, 1, 0, 0, 1, 1) ... (3) Also,
The magnetic material of the magnetic stripe surface 30 and the material of the magnetic ink are made to have different coercive forces. In this way, if the second information is encrypted and recorded, and the first information is recorded using a different recording method than the second information, and the coercive force of the material is also changed, the encrypted information can be Even if the second information is falsified, it is difficult to think of falsifying the first information. Therefore, if this first information is missing, it can be immediately determined that it is a forgery, and if only the encrypted second information is recorded, it becomes a meaningless pass ticket, making it difficult to identify it as a forgery. becomes easier.

Next, a ticket issuing and processing device using such a ticket P will be explained. FIG. 2 is a schematic perspective view of the ticket issuing and processing device, and FIG. 3 is a schematic sectional view of the same device.

This ticket issuing and processing device is placed at both the entrance and exit of the interchange, and when placed at the entrance, it is used as a ticket issuing device, and when placed at the exit, it is used as a processing fill. It is. In FIG. 2, this ticket issuing and processing device includes a storage section 1.1 for storing a ticket P1 to be issued. Issuing port 2 for issuing this pass P1. Ticket P2 collected at the exit
Insertion port for inserting 3. A stacking section 4 for stacking the processed passes P2 at the exit. It has an input device (keyboard) 5 for inputting various information and a display device 6 for displaying input information or amounts.

Next, the internal configuration of this device will be explained with reference to FIG.

The storage section 1 is removably attached to the main body of the device, and stores the passes P1 stacked therein. The lowermost pass Pt in the storage section 1 is taken out by a picker 10.

The pass P1 supplied from the storage section 1 or the pass P2 inserted from the insertion port 3 is conveyed while being held by the conveying surfaces of the first to fourth conveyor belts 11.12, 13.14. It looks like this. The first conveyor belt 11 is connected to a first conveyor belt 11 located in front of the main body of the apparatus in the odor direction. Second. Third pulley 11A.

118.110 is stretched endlessly. The second conveyor belt 12 is connected to the fourth to eighth pulleys 12A, 12B, 12G, 12D so as to overlap with the first conveyor belt 11 wound around the circumferential surface of the first pulley IIA. ,1
It is stretched endlessly on 2E. Third conveyor belt 13
are superimposed on the first conveyor belt 11 in order to guide the passes Pi, P2 conveyed by the first and second conveyor belts 11 and 12 to the stacking section 4 or issuing port 2, and It is stretched endlessly around ten pulleys 13A and 13B. The fourth conveyor belt 14 transports the pass P2 inserted through the insertion opening 3 into the first conveyor belt 14. Second conveyor belt 11.12
polymerized on the first conveyor belt 11 to guide it to the conveyance surface of
It is stretched endlessly by eleventh to thirteenth pulleys 14A, 14B, and 14G. In addition, the above-mentioned No. 1. A gate 15 is arranged between the end of the conveying surface of the third conveying belt 11.13 and the issuing port 2, and is rotatable in the direction of the arrow shown in the figure. When this device is used at the exit of an interchange, this gate 15 branches to guide the conveyed pass P2 to the accumulation section 4, as shown in the figure. In addition, when this device is used at the entrance, it is designed to guide the conveyed pass P1 to the issuing port 2. Therefore, when it is used at the entrance of an interchange, , the pass ticket Pi taken out by the picker 10 from the storage section 1
is supplied from the direction a in the figure, and the first. Second conveyor belt 1
1.12 conveyance surface, 1st. Third conveyance 6″″11/13
') Conveyance surface and 0 game '15') Top surface , . . . , are issued from issuing port 2. On the other hand, when used at the exit of ink-change, the pass ticket inserted from insertion port 3 is P2 is the conveyance surface of the first and fourth conveyor belts 11.14, the conveyance surface of the first and second conveyor belts 11.12,
1st. It is guided to the accumulation section 4 via the conveyance surface of the third conveyor belt 11, 13 and the lower surface of the gate 15.

Said 1st. While the pass tickets Pr and P2 are being conveyed by the conveyance surface of the second conveyor belt 11.12, a magnetic sensor 24, which is a first reading device, is attached. A first magnetic read head 20, which is a second reading device, is arranged adjacent to the first magnetic read head 20, and a magnetic write head 21. A second magnetic read head 22 is arranged. In addition, the above-mentioned No. 1. Ticket P1. by the conveyance surface of the third conveyor belt 11.13. A printing unit 23 that prints the information read by the second magnetic read head 22 in a visible manner is arranged in the middle of the conveyance of P2. The magnetic sensor 24 detects the passing ticket Pt,
This is to read the first information recorded in advance in the print design section 31 of P2. The first magnetic read head 20 is not operated for the pass P+ supplied from the storage section 1, but reads the second information for the pass P2 inserted from the insertion slot 3. It is for reading. The magnetic write head 21 writes encrypted second information to the pass P1, and writes exit information and fare information to the pass P2. The second magnetic read head 22 reads the information written by the magnetic write head 21, and the printing section 23 prints on the passes Pr and P2.

The step motor 25 is connected to the first to fourth conveyor belts 1.
1.12.13.14 are conveyed and driven to transport the pass ticket P1. P2
It is used to transport objects to a predetermined position. When conveying the pass P1 supplied from the storage section 1, the step motor 25 is connected to the first to third conveyor belts 11, 12.1.
3 to guide the pass P1 to the issuing port 2. In addition, when transporting the pass P2 inserted from the insertion slot 3, the first
- Drive the fourth conveyor belt 11, 12, 13, 14 to guide the pass P2 to the stacking section 4. If it is determined that the ticket is a counterfeit ticket based on the output of the magnetic sensor 24, the gate 15 is switched to guide the ticket to the issuing port 2.

Next, the magnetic recording block of the second information by the magnetic write head 21 and the magnetic recording block of the first . The entrance information reading block based on the combination of the second information will be explained with reference to FIGS. 4 and 5. The second information is written under the control of the blocks shown in FIG. The entrance information generating section 32 inputs the input of the keys on the keyboard 5 or the outputs of the vehicle height sensor, the number of axles, etc., and generates entrance information such as vehicle type information, entrance interchange number 1, date and time. - As an example, the information of the above formula (2) is generated.

On the other hand, the magnetic sensor 24 detects the printed design surface 3 of the pass P1.
1 is read, and this read information is detected by the magnetic barcode detection circuit 33 as the first information shown in the above equation (1). The entry information and the first information are input to the arithmetic circuit 34, and the equation (3) is executed to encrypt the second information. This second information is written to the pass ticket P by the magnetic write head 21 driven by the magnetic write circuit 35.
Magnetic recording is performed on the magnetic stripe surface 30 of 1.

Next, the entrance information reading block will be explained with reference to FIG. The magnetic sensor 24 reads the printed design surface 31 and the first magnetic read head 20 reads the magnetic stripe surface 30 of the pass P2 inserted through the insertion slot 3 at the exit of the interchange.

The output of the magnetic sensor 24 is transmitted to the magnetic barcode detection circuit 3.
3 is detected as first information, and the output of the first magnetic read head 20 is detected as second information by the magnetic information reading circuit 36. These first and second pieces of information are then computed by the arithmetic circuit 37 to create entry information. That is, the following equation (4) is executed to obtain entrance information.

Entrance information - (first information) + (second information)...
-(4) Then, this entrance information is stored in the read information storage section 38.

Passage ticket issuing and processing device configured as above °
The effect of ゛ will be explained.

Issuance of toll ticket When a vehicle passes through an interchange entrance of a toll road, the driver hands over a toll ticket Pt that records the entrance information. Then, the operator presses the ticket issuing side (not shown) on the keyboard 5. Then, the lowest level ticket P in storage section 1! is taken out by the picker 10. This passing ticket P1 is the first ticket P1. Second conveyor belt 1
1.12 will be held and transported. When the pass P1 passes through the magnetic sensor 24, the magnetic sensor 24 reads the magnetic ink information on the printed design surface 31. Then, based on the output of the magnetic sensor 24, second information encrypted with the blocks shown in FIG. 4 is created. Further, when the pass P1 is conveyed and reaches the position of the magnetic write head 21, the second
information is written. The pass Pl on which the second information has been written is further continuously conveyed, write-after-read is performed by the second magnetic read head 22, and further,
The printing unit 23 prints the entrance information output from the entrance information generating unit 32 as visible information. Thereafter, this pass P1 is released from the issuing port 2 by the action of the gate 15. This ticket P1 is then handed over to the driver via the operator.

Next, when the vehicle reaches the interchange exit,
Here, processing of the pass P2 (already issued pass P1) and payment of the toll are performed. Therefore, the operator picks up this toll ticket P2 and inserts this toll ticket P2 from the insertion slot 3.
Insert. Then, this passing ticket P2 is the first one. Fourth
The transport belt 11. It is transported by the second transport belt 11.12 for predetermined processing. This pass P2 is
The printed design surface 31 and the magnetic stripe surface 30 are read by the magnetic sensor 24 and the first magnetic read head 20, and are temporarily stopped in front of the magnetic write head 21. The output of the magnetic sensor 24 and the first magnetic read head 20 is processed by the block shown in FIG. 5 to decode the entry information. Here, this decoded entrance information and the fee calculated from this entrance information and exit information are displayed on the display device 6. The operator checks the displayed content, and if it is correct, presses the confirmation key on the keyboard 5. If no magnetic ink is detected by the magnetic sensor 20, the operator determines that this ticket P2 is a counterfeit ticket and presses the confirmation key on the keyboard 5. The pass ticket P2 is released from the issuing port 2. On the other hand, the magnetic sensor 24° causes the first magnetic write head 20 to
．． The ticket P2 on which the second information has been read is conveyed to the destination by pressing the confirmation key, and when the ticket P2 reaches the position of the magnetic write head 21, the exit information is written on the magnetic stripe surface of the ticket P2. Charges are recorded magnetically.

Exit information includes an exit interchange number, date and time, etc. Thereafter, the exit information and the fare are written-after-read by the second magnetic read head 22, and the information read by the second magnetic read head 22 is printed as visible information on the pass ticket P2 by the subsequent printing unit 23. The design is printed on page 31. Then, the pass ticket P2 is branched from the conveyance path by driving the gate 15 and stored in the stacking section 4.

Note that the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention. In the above embodiment, the present invention is applied to a method of reading a toll road ticket, but the information recording medium is not limited to such a toll ticket, but can also be applied to various ID cards and the like.

Also, 1st. The second information is not necessarily limited to magnetic information,
For example, the second information is visible information, the first information is information that is not easily visible, such as a watermark pattern, and after reading this image information optically, the image information is combined into information with a specific meaning. It may also be decoded. In addition, the combination of first and second information to be decoded into information with a specific meaning may be a certain operation such as addition, subtraction, multiplication, or division, or other decoding methods based on certain rules. good.
, (, [Effects of the Invention] As detailed above, according to the present invention, first and second information recorded using different recording methods are read, and a combination of the invasive information has a specific meaning. Since the information is decoded, even if an information recording medium containing one of the pieces of information is forged, the other piece of information will have no meaning, making it easy to identify forgeries. 1. If at least one of the second information recording methods is recorded in a way that is difficult to forge,
The counterfeiter often forges the other piece of information, which is easier to forge, and does not even think about falsifying the one piece of information, making it possible to reliably identify a counterfeit ticket.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of an information recording medium to which the present invention is applied, and FIG. 2 is a ticket issuing method in which the method according to the present invention is implemented.
A schematic perspective view of the processing device; FIG. 3 is a schematic cross-sectional view of the device;
FIG. 4 is a block diagram showing a configuration for writing the second information, and FIG. 5 is a block diagram showing a configuration for decoding specific information by combining the first and second information. 20...second reading device, 24...
First reading device, P... Information recording medium.

Claims (4)

[Claims] (1) Using an information recording medium on which first and second information are recorded using different recording methods, the first information is read by a first reading device, and the second information is read by a second reading device. 1. A method for reading information from an information recording medium, comprising reading the information using a device and combining the first and second information to decode the information into information having a specific meaning. (2) The method for reading information from an information recording medium according to claim 1, wherein the first and second information are magnetic information. (3) The method for reading information from an information recording medium according to claim 2, wherein the first and second information are recorded on magnetic materials having different coercive forces. (4) The method for reading information from an information recording medium according to claim 1, wherein the combination of the first and second information is one of addition, subtraction, multiplication, and division.