JPS63165935A - Method for preventing forgery of soft substrate - Google Patents

Abstract

PURPOSE:To prevent forgery of a soft substrate by storing previously the ID data, etc., that can be optionally changed to the soft substrate as well as to an external device when the soft substrate is loaded. CONSTITUTION:A soft substrate 50 is loaded to an external device 60 and the ID data 70 is stored in the memory parts 51 and 61 respectively when the use is started for attachment of a game. Then these data 70 are read out of the parts 51 and 61 when the system is working and compared 80 with each other. When the coincidence is obtained between both data, the system is started. The data 70 can be optionally changed for input to the system. In addition, the different data can be stored for each attachment of the game to make it difficult to forge the substrate 50.

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a table-type television game and a drive game using a microcomputer.

The present invention relates to a method for preventing counterfeiting of soft boards for various game devices such as gun games.

(Technical background of the invention and its problems) Conventionally, in game devices installed in various places such as game halls and department store rooftops, the method of changing the game content is to install a software board with new software on the game device in advance. I am trying to replace the board inserted in an external device.

However, when these new software boards are released on the market, in less than a month, a large number of counterfeit software boards that operate exactly the same are produced and sold at low prices, disrupting the market.

Here, FIG. 4 shows a block configuration within a conventional game device, and this game device is used as a system by attaching a soft board 1 to an external device 2. Inside the soft board 1 are a control MPU II and a forgery prevention MPU 12゜1'+AM13. An RCIM 14 storing a game program is provided, each of which is connected by a data bus, and the counterfeit prevention Ml'U 12 has a RAM 15. n0M
16 are connected to each other by a data bus. The external device 2 includes a data bus and a display 22. A joystick 23 is connected via an interface 21, and the software board 1 and the data bus of the external device 2 are connected via connector terminals 17 and 24.

In such a game device, the anti-counterfeit MP old 2 is equipped with something that makes it impossible to read the program contents of the ROM 16, and the game program is read from the ROM 14 in the software board 1 and used for control purposes. MPU 11
The game program data created by the counterfeit prevention MPU 12 is manually input to the external device 2 via the connector terminal 17, 24 and the data bus, so that the game device operates as a system.

Therefore, the counterfeiter of the soft board 1 usually uses the anti-counterfeit MPU
If the contents of the ROM 16 of 12 cannot be decoded, it is impossible to manufacture (counterfeit) the soft board 1. However, with the spread of large computers in recent years, by analyzing the output signal of the connector terminal 17 with these large computers, we have developed a ROM 14 that operates as if it were used, even without using the anti-counterfeit MPU 12. It has become easier to do so, and counterfeiting of such malicious software boards is increasing.

In other words, even if the MPU 12 whose program contents cannot be read is installed, the connector terminal 17 can be read using a large computer.
By analyzing the signal, a counterfeit soft board 1 can be easily produced, and mass production also reduces the analysis cost of a large computer, meaning that it can easily become profitable. Therefore, in order to prevent these counterfeits, an MPU is installed in the external device 2, and its control ROM is installed in the external device 2.
There is also a method of storing unique In data for each game device, etc., and manufacturing the soft board 1 having ID data corresponding to the ID data of the external device 2.

In this method, when the soft board 1 is attached to the external device 2 and operated as a system, the 10 data in the soft board 1 and the II) data in the external device 2 are compared via the interface, and when they match, the It can be operated as a system. However, with this method, it is necessary to manage all the ID data in the external devices 2 of game devices installed in various locations, and to manufacture a soft board 1 compatible with the external device 2 for each game device based on the management data. Must be. Moreover, with this method, when the number of external devices 2 is on the order of, for example, tens of thousands or hundreds of thousands, it is a practical matter to manage all of these ID data and to manufacture a software board 1 that is compatible with these 10 data. It's impossible. Moreover, in this method, it is necessary to manufacture the soft board 1 itself to order, which poses the problem of very poor production efficiency and increased costs. In other words, in a method in which each external device 2 has permanent ID data and only the soft board that matches the ID data operates, there are problems in terms of management and soft board manufacturing as described above. Also, if there is an external device 2 that has permanent ID data, the external device 2
There is also a possibility that the information will be analyzed and a suitable soft board will be counterfeited.

(Object of the invention) This invention was made under the above circumstances,
The purpose of this invention is to store arbitrarily changeable ID data, etc. on the software board and external device when the software board is installed, and to read and collate the stored ID data, etc. when the software board is installed and when the system is operating. , furthermore, these I
To provide a method for preventing counterfeiting of a soft board, which enables game processing etc. by decrypting data encrypted with D data, and prevents counterfeiting of a soft board.

(Summary of the Invention) The present invention relates to a method for preventing counterfeiting of a soft board, and in a system in which a soft board is used by being attached to an external device, an element having a writable memory section is provided on the soft board, and the method includes: An element having a rewritable memory section is provided in the external device, and when the soft board is attached to the external device to start use, the element having the writable memory section and the rewritable memory section data is stored in each of the elements having the writable memory part and the data stored in each of the element having the writable memory part and the element having the rewritable memory part are read and compared when the system is in operation, and a match is found. In this case, the system is operated and each data is encrypted and decrypted. Further, as a method for recording data in the memory, when the software board is attached to the external device and the system is started to be used,
A card on which data is recorded in advance is inserted into a card reader to read the data, and the data is stored in each of the element having the writable memory part and the element having the rewritable memory part, and When the system is operating, data stored in each of the element having the writable memory section and the element having the rewritable memory section are read and compared, and if they match, the system is operated. It is.

(Embodiment of the invention) FIG. 1 shows an outline of the method for preventing counterfeiting of a soft board according to the present invention.
0 is attached to the external device 60 of a game device and used as a system, the use of a counterfeit software board is prevented. This game device has a writable memory section 51 in a soft board 50, and an external device 6.
0 includes a rewritable memory section 61.

Then, when the software board 50 is attached to the external device 60 and the game device starts to be used, the ID data 70 is stored in the memory section 51.61, and when the system is operated, the ID data 70 is stored in the memory section 51.61. each I
The system is activated when the D data 70 is read out and matched 80 times. This ID data 70
can be changed arbitrarily and entered into the system, and different data can be stored for each game device, so
It is difficult to counterfeit the soft board 50.

Next, a game device that implements the soft board counterfeit prevention method of the present invention will be described.

FIG. 2 shows a block configuration of a game device, and this game device is used as a system by inserting a soft board 3 into an external device 4. The software board 3 includes a control MPU 31° and a control RAM 33. ROM 34 in which game programs are stored. EPROM32. An interface 35 is provided, and each is connected by a data bus.

The external device 4 includes a control MPU 41. RAM 43 for storing game programs. Control n0M44, interface 45, 49.50. Anti-counterfeit MUP42 displays 46 are provided, each connected by a data bus, and an interface 50 includes a joystick 4.
A card reader 48 for reading data recorded on the card 5 is connected to the interface 49. Furthermore, the forgery prevention MPU 42 has a RAM 433.
ROM422. EEPROMs 421 are provided and each is connected by a data bus. Here, fixed data Di that cannot be changed from the outside is stored in advance in the EPROM 32 of the software board 3, and corresponding data 02 corresponding to the fixed data O1 is recorded in advance in the card 5. Furthermore, in addition to the correspondence data 02, the card 5 also contains data D for giving unique IC data D4 to the external device 4.
3 is also recorded.

In such a configuration, the operation of this game device will be explained with reference to the flowcharts in FIGS. 3(A) and 3(B).

When installing a new software board 3 in the external device 4 and starting the system, first insert the card 5 into the card reader 48, read the corresponding data D2 and data D3 (step S1), and read the corresponding data D2 into the interface. 35.4
5 to the software board 3, and the control MI'U 31 compares and determines whether the data corresponds to the fixed data DI stored in advance in the CPROM 32. If both are compatible, the data D3 of the card 5 is stored in the EPROM 32 via the interface 35.45, and the corresponding data D2 and data D3 are stored in the control MPU 3.
1, synthesize it as ID data D4, and store it in EPROM3.
2 (step S2), and then manually stored in the external device 4 via the interface 35, 45 to prevent counterfeiting.
These data are encrypted by the PU 42 and also stored in the EEPROM 421 (step S3). here,
If the fixed data 01 and the corresponding data D2 do not correspond, they cannot be stored in the EEPROM 421. When the above operations are completed, the card reader 48 physically permanently destroys the corresponding data D2 and data 03 recorded on the card 5, and returns the card 5 after processing it into a state where it cannot be reproduced or reused. do.

When the system is running, the data D3 stored in the CPROM 32 is read through the interface 35.45, and the 10 data D stored in the EEPnOM 421 is read.
4 is decoded into data D3 by the counterfeit prevention MPU 42 (step S5), and the control MPt determines whether or not it is compatible.
131 or the control MPU 41, and if it is compatible (step S7), the game program is read from the ROM 34 (step S8), the control MPt 141 sequentially processes the game (step S8.59), and the system is started. let

The game program processing method is as shown in FIG.
The data is synthesized and encrypted with the data D3 read from 2 (step 511), and transmitted to the external device 4 via the interface 35.45 (step 512). After being received by the external device 4 (step 520), the forgery prevention MPU In step 521), the game program is decoded, and the game program is temporarily stored in the IIAM 43, and then the system is operated. The fixed data DI stored in the EPROM 32 of the soft board 3 used in this system can be created by giving each soft board 3 a serial number, etc., so that each board has separate fixed data. You can also do it. Furthermore, since it is possible to manufacture a soft board 3 having the same fixed data D1 for each block, it is possible to create a soft board 3 with any fixed data DI. Furthermore, fixed data D1 is EP
If you protect it after storing it in ROM32,
Very effective against counterfeiting. When storing the corresponding data 02 in the CPROM 32, it is more effective against forgery if only additional writing is possible and it is not rewritable. Further, in the above description, the corresponding data D2 and the data D3 are recorded on the card 5, and the ID data D4 is synthesized by the control MPU 31, but the corresponding data D2 and the ID data D are directly recorded on the card 5.
4 may be recorded.

(Modifications of the Invention) The present invention can be used not only as a method for preventing counterfeiting of soft circuit boards for game devices using microcomputers such as tabletop television games, driving games, and gun games, but also for television games using home televisions. It can also be applied to prevent counterfeiting of floppy disks for games, magnetic tapes for games, etc. that use software boards such as PCs, etc.

Further, in the above embodiment, the writable EFROM 32 was used as the memory element of the soft board 3, but the EEPROM
M may be used or a one-time ROM may be used. And if you use one-time ROM, EP
A card 5 having the same data as the data stored in the rlOM 32 may be issued.

(Effects of the Invention) According to the method for preventing counterfeiting of a soft board of the present invention, ten
The data is stored in the memory section of the software board and the memory section of the external device, and separate unique data (fixed data, corresponding data) is given to each pair as a pair, and is always stored in the memory section of the software board and external device when the system is running. After determining the correspondence between the ID data and finding a match, the system is operated. Therefore, if you are trying to counterfeit a soft board,
Even if you were able to solve the 10 data of the already installed external devices by any method, you would only be able to forge the soft board for that one external device. This increases costs for counterfeiters and has no benefit. Also, several external devices.

Even if a counterfeiter were to check the ID data of one device, it would be a waste of effort because the ID data of the external device is changed every time the software board is changed in this invention. , the anti-counterfeiting effect is outstanding. Furthermore, a method for assigning ID data to the memory section of an external device is to read the card with a card reader when installing the soft board, and to combine the fixed data pre-recorded in the memory section of the soft board with the ID data recorded on the card. Since this is performed by comparing with arbitrary corresponding data, there is no need to manage ID data of external devices, which is a great advantage. In addition, the memory section of the software board stores separate fixed data in advance, and the card also records corresponding data corresponding to the fixed data stored on the software board, so this system can store 10 data. When storing 10 data, it is impossible to write 10 data unless the above fixed data correspond to each other. Moreover, since each of the above fixed values is unique data for each soft board and card, it cannot be used even if only the card is forged or altered. is also extremely difficult.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the soft board counterfeit prevention method of the present invention;
FIG. 2 is a block diagram of a game device implementing the present invention, FIGS. 3A and 3B are flowcharts showing an example of its operation, and FIG. 4 is a block diagram of a conventional game device. 1.3.50...Soft board, 2,4.60...External device, 5...Card, 11,21,31.41 ・
... MPtl for control, 12°42 ... MPI+ for counterfeit prevention, 13. Is, 33.43.421-・
・RAM, 44, 44, 422...ROM, 17
, 24. ...Connector terminal, 21,35.45.49
．． 5Q...Interface, 22°46...Display, 26.47...Joystick, 32...
EPROM 1421...EEPROM, 48...
・Card reader. Applicant's agent Yu Yasuta Engraving of the three drawings (no change in content) (A) 3 reasons (B) $3 Procedural amendment (formality) April 14, 1985 Patent Application No. 314541 of 1988 2. Name of the invention Soft board counterfeit prevention method 3. Person making the amendment Relationship with the case Patent applicant (289) Inu Nippon Printing Co., Ltd. 4 Agent 5. Date of amendment order First dated March 4, 1986 The engravings and amendments to the drawings attached are as shown in the attached sheet (no changes to the contents).

Claims (3)

[Claims] (1) In a system in which a soft board is used by being attached to an external device, the soft board is provided with an element having at least a writable memory section, and the external device has a rewritable memory section. an element is provided, and when the soft board is attached to the external device and used, data is stored in each of the element having the writable memory section and the element having the rewritable memory section; When the system is operating, the data stored in each of the element having the writable memory section and the element having the rewritable memory section are read and verified, and if they match, the system is operated, and each of the data is A method for preventing counterfeiting of a soft board, characterized in that data is exchanged between the soft board and the external device via the soft board. (2) In a system in which a soft board is used by being attached to an external device, the soft board is provided with an element having at least a writable memory section, and the external device has a rewritable memory section. and when the soft board is attached to the external device and starts to be used, a card on which data is recorded in advance is inserted into a card reader to read the data, and has the writable memory section. 2. The soft board counterfeit prevention method according to claim 1, wherein the data is stored in each element and the element having the rewritable memory section. (3) Arbitrary fixed data that cannot be read externally is stored in advance in an element having a writable memory section of the soft board, and data corresponding to the fixed data is also recorded in advance in the card. and when the soft board is attached to the external device and used,
If the data corresponding to the fixed data recorded on the card and the fixed data pre-stored in the element having the writable memory section match, the data recorded on the card may be checked. 2. The method for preventing counterfeiting of a soft board according to claim 1, wherein the data stored in the writable memory section is stored in each of the element having the writable memory section and the element having the rewritable memory section.