JP2005143595A - Game machine, and method and program for preventing fraudulence in game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent fraudulence by announcing the fraudulence with sound and light or by prohibiting reception of a game if a program is fraudulently changed. <P>SOLUTION: A game machine has a main board 1 and a subordinate board 2 to be operated when a command is received. The main board 1 comprises a security code registration part 1a, a security code memory part 1b and a security code deleting part 1c for deleting a security code from the memory part 1b when fraudulence is detected. The subordinate board 2 comprises a security code memory part 2a, a security code collating part 2b for collating the security code in the memory part 1b of the main board 1 with the security code in the memory part 2a of the subordinate board 2, and a security code deleting part 2c for deleting the security code from the memory part 2a if fraudulence is detected. If the security codes discord with each other as a result of the collation, the discordance is announced with sound or light, or reception of the game is prohibited. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gaming machine such as a slot machine, a fraud prevention method for the gaming machine, and a program.

  A gaming machine such as a slot machine is provided with a medal slot so that a player can enjoy a game by inserting a predetermined number of medals. The medals necessary for the game can be borrowed with a medal lending machine provided in the game hall, and the game can be started by inserting it into the medal slot of a desired gaming machine.

The operation of the conventional gaming machine was as follows.
First, when the start switch is operated, the start switch is turned on. In response to this, a lottery process is performed by a winning lottery means inside the gaming machine. Here, when a predetermined combination is won, a winning flag is set. The rotating reel starts to rotate. When the stop switch is operated, the stop switch is turned on. Then, the rotation of the corresponding rotating reel is stopped. After the stop switches corresponding to all the rotating reels are operated, whether or not the winning symbols corresponding to the winning flag are aligned on the effective winning line while the winning flag is established, that is, whether or not the winning is confirmed. Is determined. When it is determined that the winning is confirmed, a medal corresponding to the winning symbol is paid out.

  In order to perform the control as described above, the gaming machine includes a substrate. The board incorporates a microcomputer, that is, a CPU, a ROM, and a RAM, and realizes lottery, winning, payout, and production control by a program. When the microcomputer operates in accordance with this program, the board performs an internal lottery and a prize determination according to the lottery result in response to the player's operation, and also performs a game medium payout control according to the prize. In this way, the board program performs important control relating to the game.

  By the way, gaming machines such as slot machines and pachinko machines are regulated by law, and therefore the board program needs to be subject to prior examination and approval by the relevant organizations, and can be altered without permission. Not. The program mounted on the board, specifically, the content of the ROM is determined at the time of application to the related organizations, and the content of the ROM of the same type of gaming machine is always required to be the same. The ROM is protected by a structure that cannot be removed from the substrate by caulking or the like so that it is not altered arbitrarily in a hall or the like.

  However, there are cases where the ROM is exchanged using unauthorized means and the contents of the program are changed. A ROM written with a program modified so that the winning probability at the time of the lottery is higher than usual is illegally attached to the board, thereby trying to obtain an illegal profit. The damage caused by such fraudulent acts is squeezing up the hall management and becoming a social problem. In order to prevent such fraud, measures are taken such as sealing the substrate or making the structure so that it cannot be easily removed. However, fraud still continues. For this reason, it has become necessary to detect an illegal ROM when it is installed, together with measures for preventing illegal ROM replacement structurally or physically.

  An object of the present invention is to solve such a problem, and it is determined whether or not a program (specifically, the contents of a ROM) has been rewritten. It is an object of the present invention to provide a gaming machine, a gaming machine fraud prevention method, and a program capable of notifying or not accepting a game.

  The gist of the present invention is that any given operation is registered in the storage unit as a security code, and a mismatch in the contents of the storage unit that occurs when an illegal ROM replacement is performed is detected.

  A gaming machine according to the present invention includes a CPU, a program storage unit that stores a program that is read into the CPU and performs an operation according to a predetermined procedure, and a first storage unit that stores a security code. A first processing unit that performs internal lottery and winning determination in response to an operation and controls payout of game media in accordance with winning; a second storage unit that receives the security code from the first processing unit and stores it And a verification unit that receives the security code of the first storage unit from the first processing unit and compares it with the security code of the second storage unit, and performs a notification process based on the output of the verification unit And a processing unit.

A gaming machine according to the present invention includes a CPU, a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, a first storage unit and a second storage unit that store a security code, A security unit that compares the security code of the first storage unit and the security code of the second storage unit, and performs internal lottery and winning determination in response to a player's operation, and control of paying out game media in accordance with winning The first processing unit is configured to prevent a game from being received when the outputs of the verification unit do not match.
The security code may be stored in advance in a ROM (for example, set for each shipping destination at the time of factory shipment). The security code may be stored in the same memory as the program.
Alternatively, a registration unit is provided for registering the operation switch of the gaming machine and its order as the security code, so that the security code output by the registration unit is stored, and an arbitrary one is provided in the hall. A security code may be set.

  The first storage unit may be configured integrally with the program storage unit.

  An erasure unit may be provided that monitors whether the program storage unit has been removed and erases the contents of the first storage unit or the second storage unit when the program storage unit is removed.

  Monitor whether the wire harness for electrical connection of the first processing unit or the second processing unit has been removed, and erase the contents of the first storage unit or the second storage unit when removed An erasing unit may be provided.

The present invention includes a CPU and a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, and performs internal lottery and winning determination in response to a player's operation, and responds to winning. And a fraud prevention method in a gaming machine including a first processing unit that performs payout control of gaming media,
When receiving a registration request for a security code, a step of storing the operated switches of the gaming machine and their order;
Registering the stored information regarding the operation switch in the first storage unit and the second storage unit as the security code;
Determining whether the content of the first storage unit and the content of the second storage unit match when a security code verification request is received;
An error notification when they do not match, or a step of refusing to accept a game.

The present invention includes a CPU and a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, and performs internal lottery and winning determination in response to a player's operation, and responds to winning. A program for executing a fraud prevention method in a gaming machine comprising a first processing unit for performing payout control of gaming media,
When receiving a registration request for a security code, a step of storing the operated switches of the gaming machine and their order;
Registering the stored information regarding the operation switch in the first storage unit and the second storage unit as the security code;
Determining whether the content of the first storage unit and the content of the second storage unit match when a security code verification request is received;
A program for causing a computer to execute an error notification when they do not match or to refuse to accept a game.

The program according to the present invention is recorded on a recording medium, for example.
Examples of the medium include EPROM devices, flash memory devices, flexible disks, hard disks, magnetic tapes, magneto-optical disks, CDs (including CD-ROMs and Video-CDs), DVDs (DVD-Videos, DVD-ROMs, DVD-s). RAM), ROM cartridge, RAM memory cartridge with battery backup, flash memory cartridge, nonvolatile RAM cartridge, and the like.

  In addition, a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line is included. The Internet is also included in the communication medium here.

  A medium is a medium in which information (mainly digital data, a program) is recorded by some physical means, and allows a processing device such as a computer or a dedicated processor to perform a predetermined function. is there.

  According to the present invention, when a program is rewritten, it can be notified by sound or light, or a game can not be accepted. As a result, gaming on a gaming machine rewritten with an illegal program can be virtually impossible, so that illegal acts can be effectively prevented.

A gaming machine according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a gaming machine (also called a slot machine or a revolving gaming machine).
A player who wants to enjoy a game with the slot machine 10 first borrows a medal as a game medium from a medal lending machine (not shown) or the like, and inserts a medal directly into the medal insertion slot 100 of the medal insertion device. The medal slot 100 is provided at a substantially central height in front of the slot machine 10.

  The slot machine 10 has a square box-shaped housing 11. A square window-like display window 12 facing the player side is formed at the center and upper part of the casing 11. A symbol display window 13 through which the symbols 61 of the three rotary reels 40 can be seen is formed at the center of the display window 12 at the center. The bet switch 16 is a switch located below the rotary reel 40, and reduces the number of stored medals that are continuously inserted into the medal insertion slot 100 and stored to replace the medal insertion. The settlement switch 17 is a switch located obliquely below the rotating reel, and pays out the stored inserted medal. The start switch 30 is a lever positioned obliquely below the rotary reel 40 and starts driving the reel unit 60 on condition that a game medal is inserted or the bet switch 16 is inserted. The stop switch 50 is for stopping the driving of the reel unit 60. The reel unit 60 is composed of three rotating reels 40. Each rotary reel 40 includes a rotary drum made of synthetic resin and a tape-like reel tape 42 attached around the rotary drum. A plurality of (for example, 21) symbols 61 are displayed on the outer peripheral surface of the reel tape 42. Reference numeral 62 denotes a liquid crystal display unit for performing various effects.

  Inside the slot machine 10, a control device for controlling the overall operation of the slot machine 10 is incorporated as will be described later. The control device is configured around a CPU and includes a ROM, a RAM, an I / O, and the like. The CPU is operated by reading a program stored in a ROM (program storage unit) in response to the player's operation. Specifically, the reel is operated based on the operation of the start switch 30 and the stop switch 50. While controlling rotation and stop of 40, the display of a lamp | ramp, a speaker, etc. is controlled. Temporary data necessary for the operation of the CPU is RAM (storage unit: RAM is generally a volatile memory, and data is lost in principle when the power is turned off. A backup power source such as a battery may be prepared. In this case, data is not lost even if the power is cut off). The CPU performs a predetermined operation in accordance with a program recorded in the ROM, records temporary data necessary for processing in the RAM, and reads out and refers to the recorded data as necessary.

  The start switch 30 is a lever that is positioned obliquely below the rotary reel 40 as described above. The start switch 30 can be obtained on the condition that a game medal is inserted or the bet switch 16 is inserted or according to a winning determination. "Replay)" is to start driving the reel unit 60 on condition that a predetermined time has elapsed since the previous game.

  The stop switch 50 is for stopping the driving of the reel unit 60 as described above. Specifically, the stop switch 50 includes three switches corresponding to each rotary reel 40, and one stop switch 50 is disposed below each rotary reel 40. The operation of the stop switch 50 corresponding to the rotating reel 40 is set to stop the rotation of the corresponding rotating reel 40.

  When the start switch 30 is operated on the condition that the medal is inserted or the bet switch 16 is inserted, or on the condition that a predetermined time elapses from the previous game at the time of the “replay”, the reel unit 60 is driven, and the three The rotary reel 40 starts to rotate. Thereafter, when one of the stop switches 50 is operated, the rotation of the corresponding rotary reel 40 is stopped. When all three stop switches 50 are operated, the rotation of the three rotary reels 40 is stopped. At this time, when a predetermined symbol 61 is stopped on the effective winning line of the symbol display window 13, it is determined that the symbol 61 is won, and a predetermined number of medals are paid out through a hopper unit (not shown). In addition, you may credit instead of paying out medals.

  When the control device controls the rotation and stop of the rotary reel 40 based on the operation of the start switch 30 and the stop switch 50, the control device determines whether or not a winning qualification has been obtained based on a predetermined internal lottery probability. A winning lottery means for performing a lottery. A winning flag is established when the internal lottery result by the winning lottery means is a win, and the winning combination is made on the condition that the combination of the stopped symbols of the rotating reel 40 matches a predetermined winning symbol while the winning flag is established. Is determined, and the player is given a profit such as paying out medals or a special game advantageous to the player.

  FIG. 2 is a block diagram showing an electrical schematic structure of the slot machine 10. In this figure, the display about the power supply system is omitted. The slot machine 10 includes a main substrate 1 (first processing unit) and a sub-substrate 2 (second processing unit) that receives a command from the main substrate 1 and operates as a main processing device. At least the main substrate 1 is accommodated inside the case so that it cannot be contacted from the outside, and a sealing process is performed so that traces remain when the substrates are removed.

  The main board 1 is for performing an internal lottery in response to a player's operation, and processing such as reel rotation / stop and medal payout. The main board 1 includes a CPU that performs a control operation according to a preset program, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like. As described above, in this gaming machine, a backup power source such as a battery is prepared for part or all of the RAM, and in this case, data is not lost even if the power is turned off. The ROM and RAM on the main board 1 may take the form of, for example, one IC formed on the same chip (see FIG. 8A). In this case, even if the RAM is battery-backed up, the RAM data is lost when the IC is removed. This point will also be described in the security code verification process described later.

  The main board 1 includes a security code registration unit 1a (implemented by software or hardware), a security code storage unit 1b (a part of the RAM may be used), and a security code storage unit 1b in a specific case. Including a security code erasing unit 1c (implemented by software or hardware).

  The sub-board 2 is for receiving a command signal from the main board 1 and notifying the result of the internal lottery and performing various effects. The sub-board 2 includes a CPU that performs a control operation according to a preset program corresponding to the command signal, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like.

  The sub-board 2 is a security code verification unit that verifies the security code storage unit 2a (a part of the RAM may be used), the security code of the storage unit 1b of the main board 1 and the security code of the storage unit 2a of the sub-board 2 The unit 2b includes a security code deleting unit 2c (implemented by software or hardware) that deletes the security code from the storage unit 2a in a specific case.

  The sub-board 2 receives a command from the main board 1 and performs processing such as rendering according to the command. The flow of commands is only one from the main board 1 to the sub board 2, and conversely, no command or the like is issued from the sub board 2 to the main board 1.

  To count the number of medals paid out from the random number generator 20, start switch 30, stop switch 50, reel drive unit 70, reel position detection circuit 71, hopper drive unit 80, hopper 81 and hopper 81 on the main board 1. Are connected to the medal detection unit 82. A peripheral board (local board) such as a control board 200 of the liquid crystal display device 62, a speaker 201, and an LED board 202 is connected to the sub board 2. Hereinafter, these peripheral substrates / devices except for the start switch 30 and the stop switch 50 will be described.

  The random number generation unit 20 has a random number generation function for generating a pseudo random number by updating the numerical values in a certain range at high speed, and a sampling function for extracting an arbitrary random number from the generated random numbers in response to the player's operation. It is to be prepared. As a specific example, it is composed of a counter and a latch.

  The reel driving unit 70 is a circuit that drives a stepping motor (not shown) that rotationally drives the three reels 40. Each stepping motor is subjected to 1-2 phase excitation by the reel drive circuit 70 and rotates once when a drive signal having a predetermined number of pulses is supplied.

  The reel position detection circuit 71 is provided in the vicinity of the reel 40, receives an output pulse signal from a photo interrupter (not shown) for detecting the rotation position of the reel 40, detects the rotation position of each of the three reels 40, and detects it. A signal is output. A photo interrupter (not shown) detects a shielding plate provided on each reel 40 and generates a reset pulse every time each reel 40 rotates once. This reset pulse is given to the CPU of the main board 1 via the reel position detection circuit 71. In the RAM of the main board 1, a count value corresponding to the rotation position within one rotation range is stored for each reel 40, and when the CPU receives the reset pulse, the count value formed in the RAM is stored. Clear to “0”. By this clearing process, the deviation generated between the movement display of each symbol and the rotation of each stepping motor is eliminated every rotation.

  The hopper driving unit 80 is a circuit that drives a motor of a hopper 81 that stores medals and pays out the number of medals corresponding to the designated winning.

  The medal detection unit 82 is for counting the number of medals paid out from the hopper 81. The CPU of the main board 1 stops driving by the hopper driving unit 80 when the actually paid out medal count value received from the medal detection unit 82 reaches the predetermined payout number data corresponding to the winning. Finish paying out. A predetermined number of medals are paid out to the player by the hopper driving circuit 80 and the medal detection unit 82 based on a winning obtained as a result of the game.

The liquid crystal control board 200 is a circuit for driving the liquid crystal display unit 62.
The speaker 201 is for generating sound such as voice and sound effects.
The LED substrate 202 is a circuit for driving a display lamp and a back lamp (not shown).

  The liquid crystal display device 62 controlled by the liquid crystal control substrate 200 and the LED substrate 202 including the speaker 201 and the display lamp constitute an effect display device. This effect display device is for notifying a player of a prize or the like, or for teaching a user a specific small role during a certain game with some action during a so-called assist time (AT).

  The ROM of the main board 1 stores game processing procedures executed in the slot machine 10 as a sequence program, and stores a winning probability table, a symbol table, a winning symbol combination table, and the like. Has been. The winning probability table is divided so as to divide the random number extracted by the random number generation unit 20 into each winning mode, and the random number extracted from a certain range of numerical values generated by the random number generating unit 20 is assigned to each winning mode. The data to be partitioned into is stored. That is, the winning probability table has an area divided for each winning mode corresponding to the entire area of random numbers taken by the random number generator 20. For example, a range of 0 to a certain number is divided into a plurality, one division (area) is excluded, and the other division (area) is set as winning 1, winning 2,. The extracted random number data is collated with each of the winning determination area data divided for each winning mode in all areas corresponding to the random number generated from the random number generator 20, and the winning prize to which the extracted random number data belongs. The winning corresponding to the aspect is determined. For example, it is determined to which category (region) of the winning probability table the extracted random number value belongs, and if the category is, for example, a category of winning 1, it is determined as “winning 1”. Similarly, if the extracted random number value belongs to an out-of-range category (region) in the winning determination table 5, it is determined as “out”. For example, when the evaluation of the lottery process is out of place, it is set so that the predetermined symbols are not aligned (so-called kicking), and when winning, the predetermined symbols are aligned on the condition that the stop switch is pressed at a predetermined timing. (So-called pull-in). And if predetermined symbols are prepared, medals corresponding to winning symbols are paid out. Various winnings are generated under the probability according to the data setting of the winning probability table, and the symbol stop control is performed. For example, the operating hours of the day are not influenced by the skill of the player. The total medal payment rate is maintained almost constant.

  As described above, the ROM of the main board 1 stores a program, a winning probability table, a symbol table, a winning symbol combination table, and the like, which are collectively referred to as being stored in the ROM. This is called ROM data. Alternatively, they may be collectively referred to as program data in terms of a program for causing the CPU to perform an operation for control processing and data related thereto.

  Since the game is defined by the contents of the ROM of the main board 1, the fraudster tries to replace the ROM.

  FIG. 3 shows a process flowchart of the gaming machine according to the embodiment of the present invention. This figure shows a process characteristic of the gaming machine, that is, a process related to a security code.

  The security code is an arbitrary code registered by the hall manager using various operation switches such as the start switch 30 and the stop switch 50 of the gaming machine. The code is made up of the operation switches of the gaming machine that are pressed and their order. For example, as shown in FIG. 4, STOP1 → STOP3 → START_LEVER + STOP2 is a security code. Unauthorized ROM exchange can be detected based on the security code.

  In FIG. 3, by operating (or not operating) a predetermined switch when the gaming machine is turned on, it is possible to select whether to enable or disable the security code (S1, S2, S9). If it is invalidated, the security code is not processed, and a normal game is provided even if it is replaced with an illegal ROM (S10).

  If it is valid, the security code is processed. That is, it is checked whether or not the security code has been registered (S3). If the security code has not been registered, registration of the security code is accepted (S4). Then, security code verification processing (S5) is performed periodically or at a predetermined opportunity (for example, when the power is turned on or periodically during the game). If the verification result is OK, a normal game is provided (S6, S7). ), NG, an error notification is made (S6, S8). If an error notification is given, it is virtually impossible to continue the game.

  FIG. 5 shows a processing flowchart of the registration mode. For example, when the first stop button 30 is pressed and the power is turned on, the registration mode is entered.

S11: Notify that the security code is registered to the sub-board.

S12: The operation order of the switches is monitored. Specifically, it is monitored which switch is pressed. One switch may be pressed, or a plurality of switches may be pressed simultaneously.

S13: It is monitored whether the stack switch is pressed. The stack switch is, for example, the bet switch 16.

S14: When the stack switch is pressed, the switch operation sequence is stacked in the RAM of the main board as an operation code. This will be specifically described with reference to FIG. When the first stop switch 30 is first pressed and then the bet switch 16 is pressed, the data A of the first stop switch 30 is stacked in the memory M (FIG. 4A). Next, when the third stop switch is pressed and then the bet switch 16 is pressed, the data B of the third stop switch is stacked in the memory M (FIG. 4B). Next, when the start switch 30 and the second stop switch are pressed, and then the bet switch 16 is pressed, data C indicating that the start switch 30 and the second stop switch are pressed simultaneously is stacked in the memory (FIG. 4). (C)). Data about which switch is operated in what order by A to C is obtained.

S15: An operation code is transmitted to the sub-board together with the stack command. As a result, data as shown in FIG. 4 is also stored in the sub-board.

S16: It is monitored whether the registration switch is pressed. The registration switch is, for example, the start switch 30. When the start switch 30 is pressed alone, it functions as a registration switch. However, as described above, when it is pressed simultaneously with other switches, it is treated as data and stacked. The same applies to the bet switch 16.

S17: When the registration switch is pressed, the operation code stacked in the RAM of the main board is stored in the RAM as a security code. As shown in FIG. 4D, the data A, B, and C are stored as the security code SC.

S18: A command for saving the stacked operation code in the RAM as a security code is transmitted to the sub-board. As a result, the security code SC of FIG.

S19: A flag indicating that the security code has been registered is set. This flag is used, for example, in the determination of S3 in FIG.

  FIG. 6 shows a flowchart of the security code verification process. The collation process is executed at predetermined intervals by a timer, in response to a request from the outside, or at some timing.

S20: Notify the sub-board that the security code is to be verified.

S21: The security code registered in the RAM (storage unit 1b) of the main board is transmitted to the sub board.

S22: A command for comparing the security code of the main board with the security code registered in the RAM (storage unit 2a) of the sub board is transmitted to the sub board. Verification is performed in the verification unit 2b of the sub-board.

S23: It is determined whether the security code of the main board matches the security code of the sub board.

S24: If they match, the normal gaming state is continued. If there is no fraud, they should match.

S25: An error is notified if they do not match. If cheating is done, they do not match. As shown in FIG. 8 (a), when the ROM and RAM (storage unit 1b) of the main board 1 are in the form of one IC formed on the same chip, it is inevitably RAM if the fraudster exchanges the ROM. (Storage unit 1b) is also exchanged, and the security code is lost. Even if the ROM and RAM (storage unit 1b) are separate ICs as shown in FIG. 8B, or the RAM is provided on a separate board as shown in FIG. Can be lost. This point will be further described later.

  The error notification is performed by emitting or blinking all or a part of the lamps, LEDs, and liquid crystal display device 62 that can be controlled by the sub-board 2, or by lighting or displaying a specific pattern, or blowing a speaker. Alternatively, it is performed by arbitrarily combining the notification modes. Instead of or in addition to this, an error signal may be output to the outside. This error signal is received by the hall computer, for example, and an error is displayed on the hall monitoring device.

  As described above, according to the first embodiment of the present invention, after the power is turned on, the security code is registered and the security code is verified during the game. If the verification fails, an error is immediately notified by sound, light, or image display, and the normal game processing is stopped. If the processing of the sub-board 2 stops due to an error, the game is practically impossible. According to the apparatus and method of the first embodiment of the invention, it is determined whether or not the program (specifically, the contents of the ROM) has been rewritten. Cheating can be effectively prevented.

  Next, processing when the ROM and the RAM (storage unit 1b) are separate ICs as shown in FIG. 8B, and when the RAM is provided on another substrate as shown in FIG. 8C. explain.

  FIG. 7A is a processing flowchart when the ROM and the RAM (storage unit 1b) are different ICs (in the case of FIG. 8B). The removal / insertion of the ROM on the main board is monitored (S30). When the ROM is removed, it is determined that the ROM is replaced, and the security code registered in the storage unit 1b is deleted (S31, S32). For example, the switch S of the RAM backup battery is temporarily disconnected. As a result, the security code is lost and does not match in the verification process described above. For example, the following can be considered as a specific example of the ROM insertion / removal monitoring method.

A specific terminal (such as a data output terminal) of the ROM is monitored, and it is determined that the ROM has been removed when an abnormality occurs in the terminal. For example, if the signal at a specific terminal is frequently switched between the H level and the L level, it can be considered that the ROM has been removed when the terminal is at one level for a certain period of time and does not change.

-The power supply terminal of the ROM is monitored, and it is determined that the ROM has been removed when no current flows through it.

• Physically detect ROM removal. For example, an optical sensor, a proximity sensor, a micro switch, or the like is provided between the ROM and the substrate. The sensor or the like outputs a signal when the ROM is removed.

  FIG. 7B is a process flowchart when the ROM and the RAM (storage unit 1b) are provided on different substrates (in the case of FIG. 8C). Monitor the wiring harness of the main board (wire harness: bundled wires and cables; used for board signal input / output and power supply) (S33). If the harness is removed, determine ROM replacement, The security code registered in the storage unit 1b is deleted (S34, S35). For example, the switch S of the RAM backup battery is temporarily disconnected. As a result, the security code is lost and does not match in the verification process described above. As a specific example of the ROM insertion / removal monitoring method, the same method as described above can be used.

Embodiment 2 of the Invention
Two security code storage units may be provided on the main board 1 and the verification process may be performed on the main board 1 side. This example is shown in FIGS. In FIG. 9, the main substrate 1 includes a security code storage unit 1b-2 together with a security code storage unit 1b-1, and further includes a security code verification unit 1d. In this figure, the same or corresponding parts as in FIG.

  FIG. 10 shows a flowchart of the security code matching process according to the second embodiment. The collation process is executed at predetermined intervals by a timer, in response to a request from the outside, or at some timing.

S40: A security code registered in the RAM (storage unit 1b-1) of the main board is acquired.

S41: A security code registered in the RAM (storage unit 1b-2) of the main board is acquired.

S42: It is determined whether the security code in the storage unit 1b-1 matches the security code in the storage unit 1b-2.

S43: If they match, the normal gaming state is continued. If there is no fraud, they should match.

S44: If they do not match, the game is disabled. If cheating is done, they do not match. This is because if the storage unit 1b-1 is an IC integrated with the ROM, the security code is lost by inserting / removing the ROM, and even if it is another IC, the security code is lost by the action of the erasing unit 1c. If the verification is performed on the main board, the game can be rejected based on the result. This is more effective in preventing fraud than simply informing.

S45: An error notification command is transmitted to the sub-board. As a result, error notification is performed. This process is the same as S25 of FIG.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

  Further, in this specification, the term “unit” does not necessarily mean a physical means, but includes a case where the function of the unit is realized by software. Furthermore, the function of one part may be realized by two or more physical means, or the function of two or more parts may be realized by one physical means.

It is a front view of a rotating type game machine. 1 is a schematic block diagram of a gaming machine according to Embodiment 1 of the present invention. The processing flowchart of the gaming machine according to the embodiment of the present invention is shown. It is explanatory drawing of the registration procedure of the security code of the game machine which concerns on embodiment of this invention. The processing flowchart of the registration mode of the gaming machine according to the embodiment of the present invention is shown. 4 shows a flowchart of a security code verification process for the gaming machine according to Embodiment 1 of the present invention. The flowchart of the erasure | elimination process of the game machine which concerns on embodiment of this invention is shown. FIG. 7A is a processing flowchart when the ROM and RAM (storage unit 1b) are separate ICs. FIG. 7B is a diagram in which the ROM and RAM (storage unit 1b) are provided on different substrates. It is a process flowchart in the case. It is explanatory drawing of the installation form of RAM (memory | storage part). 8A shows a case where the ROM and RAM are integrated ICs, FIG. 8B shows a case where they are separate ICs, and FIG. 8C shows a case where they are provided on different substrates. It is a schematic block diagram of the gaming machine according to the second embodiment of the present invention. 7 shows a flowchart of a security code verification process for a gaming machine according to Embodiment 2 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main board | substrate 1a Security code registration part 1b Security code memory | storage part 1c Security code erasure | elimination part 2 Sub board | substrate 2a Security code memory | storage part 2b Security code collation part 2c Security code erasure | elimination part 10 Slot machine 11 Case 12 Display window 13 Symbol display window 16 Bet switch 17 Settlement switch 20 Random number generator 30 Start switch 40 Rotating reel 42 Reel tape 50 Stop switch 60 Reel unit 61 Pattern 62 Liquid crystal display unit 70 Reel drive unit 71 Reel position detection circuit 80 Hopper drive unit 81 Hopper 82 Medal detection unit 100 Medal slot 200 Liquid crystal control board 201 Speaker 202 LED board 304 Medal payout slot 311 Medal receiving part (lower plate)

Claims (8)

A CPU, a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, and a first storage unit that stores a security code; A first processing unit for making a determination and performing payout control of a game medium in accordance with a winning;
A second storage unit that receives the security code from the first processing unit and stores it; a security code in the first storage unit that receives the security code from the first processing unit; And a second processing unit that performs a notification process based on an output of the verification unit. A CPU, a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, a first storage unit and a second storage unit that store a security code, and a security code of the first storage unit And a verification unit that compares the security codes of the second storage unit, and includes a first processing unit that performs internal lottery and winning determination in response to a player's operation, and controls game medium payout according to winning. ,
The gaming machine according to claim 1, wherein the first processing unit is configured not to accept a game when the outputs of the verification unit do not match. A registration unit for registering the operation switch among the operation switches of the gaming machine and the order thereof as the security code,
The gaming machine according to claim 1 or 2, wherein the security code output by the registration unit is stored.   4. The gaming machine according to claim 1, wherein the first storage unit is configured integrally with the program storage unit.   5. The apparatus according to claim 1, further comprising an erasing unit that monitors whether the program storage unit has been removed and erases the contents of the first storage unit or the second storage unit when the program storage unit is removed. A gaming machine according to any one of the above.   Monitor whether the wire harness for electrical connection of the first processing unit or the second processing unit has been removed, and erase the contents of the first storage unit or the second storage unit when removed The gaming machine according to claim 1, further comprising an erasing unit for performing the above operation. A CPU and a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, and performs internal lottery and winning determination in response to a player's operation; A fraud prevention method in a gaming machine including a first processing unit that performs payout control,
When receiving a registration request for a security code, a step of registering the operated switch of the gaming machine and its order; and
Storing the stored information regarding the operation switch in the first storage unit and the second storage unit as the security code;
Determining whether the content of the first storage unit and the content of the second storage unit match when a security code verification request is received;
A fraud prevention method in a gaming machine comprising a step of notifying an error when both do not match or refusing to accept a game. A CPU and a program storage unit that stores a program that is read by the CPU and performs an operation according to a predetermined procedure, and performs internal lottery and winning determination in response to a player's operation; A program for executing a fraud prevention method in a gaming machine including a first processing unit that performs payout control,
When receiving a registration request for a security code, a step of registering the operated switch of the gaming machine and its order; and
Storing the stored information regarding the operation switch in the first storage unit and the second storage unit as the security code;
Determining whether the content of the first storage unit and the content of the second storage unit match when a security code verification request is received;
A program for causing a computer to execute an error notification when they do not match or to refuse to accept a game.

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