JP5950768B2 - Microcomputer for game machine control - Google Patents

Description

  The present invention relates to a microcomputer that controls a gaming machine of a type that electronically holds the number of game media as the number of credits.

  In pachislot machines, the number of gaming media thrown into the gaming machine is electronically held as the number of credits, and the actual gaming media is thrown in when used for gaming or when a prize is awarded as a result of gaming. It is common to increase or decrease the number of credits instead of paying or paying out.

  Also, in a pachinko machine, a game medium is enclosed in the game machine, and the game is used by circulating the enclosed game ball, while a handball, that is, a game that the player has the right to use for the game. Proposals have been proposed in which the number of balls is electronically held as the number of credits and the number of credits is increased or decreased as the game progresses.

These types of gaming machines that electronically hold the number of game media as the number of credits can achieve the same effect as an increase in game media without increasing the actual number of game media if the number of credits increases. It is important to prevent the act of illegally increasing the number of credits.
In particular, this type of gaming machine can increase the number of credits without any restriction of mechanical operation of paying out game media when fraud is made with respect to the number of credits. This is because the game media will be fraudulently in a much shorter time than that.

  In response to this problem, Patent Document 1 discloses that the number of credits due to an unauthorized payout command transmitted from a main control unit that has been illegally replaced by encrypting a payout command transmitted from the main control unit to the payout control unit. A technique for preventing the increase is disclosed.

In the conventional technique, the number of credits is managed by the payout control unit, and the credit number is increased when the payout control unit receives a payout command from the main control unit associated with a game ball winning. Therefore, even if the main control unit that has been illegally replaced transmits a payout command even though the game ball has not won, the payout control unit increases the number of credits.
The technology described in Patent Document 1 pays attention to this point, and by encrypting the payout command, prevents the regular payout command from being imitated, thereby preventing an increase in the number of credits due to an illegal payout command. ing.

  Patent Document 2 discloses a technique for counting the number of games played between the ON state of a settlement switch and the next ON state, and generating an error signal when the number of games is less than or equal to a predetermined number of games. .

Here, the object is to prevent an act of increasing the number of credits by an illegal operation on the game medium detecting means for counting the game media inserted from the slot, targeting a gaming machine whose upper limit of credits is 50 It is said.
Since the number of credits has an upper limit of 50, even if the number of credits increases due to an unauthorized operation by an unauthorized device, it cannot be increased beyond the upper limit of 50. In order to acquire a large amount of game media by this fraudulent act, an act of frequently operating the checkout switch to convert the number of credits into a game media is required.
The technology described in Patent Document 2 pays attention to this point, and prevents an increase in the number of credits due to fraudulent acts on the game medium detecting means at the slot by preventing the act of repeating the operation of the checkout switch without playing a lot of games. doing.

JP 2002-78914 A JP 2005-323705 A

However, in the technique disclosed in Patent Document 1, an electromagnetic wave is applied to the game ball detection means attached to the winning opening, or electromagnetic interference is caused to the detection signal of the game ball, thereby winning the prize. It is ineffective against fraud that causes the main controller to misrecognize that a prize has been won even though it has not.
This is because the payout command transmitted by the legitimate main control unit erroneously recognized as having won the game ball is correctly encrypted.

  Further, depending on the encryption used, there is a possibility that an unauthorized payout command that has been analyzed and correctly encrypted by the unauthorized main control unit may be transmitted. In such a case, there is no effect.

Further, the technique disclosed in Patent Document 2 is not effective for a gaming machine having no upper limit on the number of credits.
Furthermore, in the case of a pachinko machine, the concept of the number of games does not exist and cannot be applied.

  The present invention has been made in view of the above circumstances, and provides a gaming machine control microcomputer that prevents an act of illegally increasing the number of credits in a gaming machine of a type in which a ball is electronically held as the number of credits. For the purpose.

  A microcomputer for a gaming machine according to the present invention electronically stores the number of possessed balls as a credit number, and in a gaming machine that electronically increases / decreases the credit number instead of increasing / decreasing the number of possessed balls associated with the game, When increased, the credit number increase value and the count value output by the counting means counting the clock signal are stored in the storage means, and the credit number increase value already stored in the storage means Aggregate two or more sets of count values to determine the total increase value and the number of clocks required for the increase, determine the increase rate of the number of credits from these values, and increase the number of credits stored in advance by the increase rate If the speed is larger than the upper limit value, the error flag is set to an error state.

A “held ball” is a game medium that the player has the right to use for the game.
“Game medium” means a game ball in the case of a pachinko machine, and a game medal or game ball in the case of a pachislot machine.

“Increase / decrease the number of credits electronically instead of increasing / decreasing the number of balls” means that when a game medium is launched or thrown into a gaming machine, the number of credits is decreased instead of the number of balls held. When borrowing a medium or receiving a payout from a gaming machine, it is to increase the number of credits instead of increasing the number of balls.
This includes a gaming machine that has an upper limit or a lower limit in the number of credits, and that corresponds to an electronic increase / decrease in the number of credits within that limit.

The “clock signal” is a signal having a certain frequency that is input to synchronize the timing of the logic circuit in the microcomputer for gaming machines.
The “clock signal” includes a frequency-divided clock signal.

  In the gaming machine microcomputer according to the present invention, the number of possessed balls is electronically stored as the number of credits, and the number of credits is electronically increased / decreased instead of the increase / decrease of the number of possessed balls accompanying the game. When the number increases, the credit number increase value, the count value output by the counting means counting the clock signal, and the value representing the gaming state of the gaming machine are stored in the storage means, and already stored Two or more sets of credit number increase value, count value, and value indicating the gaming state of the gaming machine stored in the storage means are aggregated for each gaming state, and the total increase value and the number of clocks required for the increase are calculated. Obtain the credit rate increase rate from each value for each gaming state, and the credit rate increase rate is larger than the upper limit of the credit number increase rate corresponding to each gaming state. The case, it is also possible to set the error flag to the error condition.

  “Game state” means the state of the gaming machine, such as during a big hit or during a normal game.

  In addition, the microcomputer for gaming machine according to the present invention electronically stores the number of held balls as the number of credits, and in a gaming machine that electronically increases or decreases the number of credits instead of increasing or decreasing the number of held balls accompanying the game. When the number increases, the credit number increase value, the count value output by the counting means counting the clock signal, and the value indicating the position of the winning opening that triggered the increase in the number of credits are paired Two or more sets of credit number increase values, count values, and value indicating the position of the winning opening that have already been stored in the storing means are stored in the storing means, and the total increased value The number of clocks required for the increase is obtained, and from these values, the rate of increase in the number of credits is obtained for each prize opening, and the credits larger than the upper limit of the credit number increase speed corresponding to each prize opening are obtained. If was several increasing rate, it is also possible to set the error flag to the error condition.

  In addition, the microcomputer for gaming machine according to the present invention electronically stores the number of held balls as the number of credits, and in a gaming machine that electronically increases or decreases the number of credits instead of increasing or decreasing the number of held balls accompanying the game. When the number increases, the count value output by the counting means counting the clock signal is stored in the storage means, and the difference between the previous count value and the current count value stored in the storage means is calculated. If the difference is larger than the previously stored continuous payout time interval, the continuous payout count is cleared to 0. Otherwise, 1 is added to the continuous payout count, and the continuous payout count is stored in advance. If it is greater than the upper limit value of the continuous payout count, the error flag may be set to an error state.

  In addition, the microcomputer for gaming machine according to the present invention is configured in a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases / decreases the number of credits instead of increasing / decreasing the number of possessed balls accompanying the game. A down counter that subtracts the calculated value at a constant time interval until it becomes 0, and when the number of credits increases, the credit number increase value is added to the value of the down counter and reset to the down counter. When the reset down counter value is larger than the pre-stored down counter upper limit value, the error flag may be set to an error state.

  The “constant time interval” does not need to be constant in a strict sense. The time interval based on the divided clock signal corresponds to a certain time interval.

  According to the present invention, since a sudden increase in the number of credits can be recognized as an error state, the game ball detecting means attached to the winning opening cannot be prevented by the method described in Patent Document 1. The act of rapidly increasing the number of credits by illiciting the main controller to misrecognize that a prize has been won, even though it has not won, by irradiating electromagnetic waves against it or electromagnetically interfering with the detection signal Can be prevented.

  This error state check is not triggered by the launch or insertion of a game ball, but is triggered by an increase in the number of credits, so that the game ball sensor malfunctions due to electromagnetic wave irradiation. It is also possible to deal with events that can occur without launching or launching.

  Furthermore, the act of abruptly increasing the number of credits by an unauthorized payout command transmitted from an illegally replaced main control unit described in Patent Document 1 can also be prevented.

  In addition, the technique described in Patent Document 2 cannot be applied, and can be applied even to a gaming machine having no upper limit of the number of credits or a gaming machine in which the concept of the number of games does not exist such as a pachinko machine. it can.

1 is a schematic block diagram showing the configuration of a microcomputer according to a first embodiment of the present invention. Schematic block diagram showing a configuration of a microcomputer according to a second embodiment of the present invention. The schematic block diagram which shows the structure of the microcomputer by the 3rd Embodiment of this invention. The schematic block diagram which shows the structure of the microcomputer by the 4th Embodiment of this invention. The schematic block diagram which shows the structure of the microcomputer by the 5th Embodiment of this invention. The figure for demonstrating the time transition of the value of the down counter in the microcomputer by the 5th Embodiment of this invention. The schematic block diagram which shows the structure of the microcomputer by the 6th Embodiment of this invention. The schematic block diagram which shows the structure of the microcomputer by the 7th Embodiment of this invention. Flowchart of microcomputer according to the eighth embodiment of the present invention Microcomputer flowchart according to embodiment 9 of the present invention Schematic block diagram showing a configuration for controlling a gaming machine using two control boards using a microcomputer according to the present invention Schematic block diagram showing a configuration in the case of controlling a gaming machine using one control board using a microcomputer according to the present invention

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram showing the configuration of the microcomputer according to the first embodiment of the present invention. In the present embodiment, the microcomputer 20 includes a CPU 201, a ROM 202, a RAM 203, a credit number increase speed monitoring unit 206, an error flag 204, and a counting unit 205.

  The CPU 201 executes a gaming machine control program stored in the ROM 202, and as a result, writes or reads data in the RAM 203. The credit number 203a representing the number of possessed balls is also one of the data on the RAM 203 updated by such a game program.

The credit number increase rate monitoring means 206 monitors the address bus, data bus, and other control signals that connect the CPU 201 and the RAM 203 and checks what data the CPU 201 writes to the RAM 203. Then, the value of the address bus is compared with the value of the credit number address 206a. If they match, it is determined that the access is to the credit number 203a, and the value of the data bus to be written to the credit number 203a is read.
The value of the credit number address 206a may be set by the CPU 201 as an initial setting, or may be written simultaneously with the gaming machine control program.
In this way, the credit number increase rate monitoring unit 206 monitors increase / decrease in the value of the credit number 203a.

The counting means 205 counts the clock signal and outputs the value. The counting method may be either up-counting or down-counting, but the counting method does not change midway.
When the frequency of the clock signal is high, the counting means may count the divided clock signal.

When the credit number increase speed monitoring unit 206 detects that the credit number 203a has increased, the credit value increase rate monitoring unit 206 stores the increased value and the count value output by the counting unit 205 in a set in the storage unit 206b.
The storage unit 206b can store two or more sets of count values and credit number increase values, and it is determined in advance how many sets are stored.
When a new data set is stored, if the maximum number of sets of data is already stored, the oldest data set is overwritten on the oldest data set based on the count value.

  For the two or more sets of count value and credit number increase value stored in this way, the total increase value is obtained for the credit number increase value, and the count value is the oldest counter value and the latest count value. The number of clocks required for the total increase value is obtained by calculating the difference between the counter values. From this total increase value and the number of clocks required, a credit increase value per unit clock number is obtained. This value is the credit rate increase rate.

When the credit number increase rate is larger than the credit number increase rate upper limit 206c, the credit number increase rate monitoring unit 206 sets the error flag 204 to an error state.
The credit number increase speed upper limit 206c is a threshold value of the credit number increase speed treated as an error, and may be set by the CPU 201 as an initial setting, or may be written at the same time when the gaming machine control program is written in the ROM 202. .

  When the error flag 204 is set to an error state, the gaming machine control program stored in the ROM 202 can notify an abnormal situation when it is executed.

  In this way, since a sudden increase in the number of credits can be recognized as an error state, electromagnetic waves are irradiated to the game ball detection means attached to the winning opening, or electromagnetic interference is caused to the detection signal of the game ball. In other words, it is possible to prevent an act of abruptly increasing the number of credits due to a fraudulent act that misrecognizes the main control unit when a prize has been won even though no prize has been won.

  FIG. 2 is a schematic block diagram showing the configuration of the microcomputer according to the second embodiment of the present invention. In the second embodiment, the value representing the gaming state is added to the storage of the set of the count value and the credit number increase value in the first embodiment, and the three values are stored in the storage unit 207c as a set. Is. Since it is the same as 1st Embodiment until it detects that the number of credits 203a increased, operation | movement after it is demonstrated.

The gaming state such as the big hit state and the probability variation state is stored in the gaming state 203b as a value representing the gaming state by the gaming machine control program.
The credit number increase rate monitoring means 207 acquires the value of the gaming state 203b, as in the case of acquiring the credit number 203a, by monitoring the address bus, data bus, and other control signals, By acquiring the value of the data bus when it matches the value of the status address 207b.

When it is detected that the number of credits 203a has increased, the credit number increase rate monitoring means 207 acquires the value of the gaming state 203b, and sets the three values of the count value, the gaming state value, and the credit number increasing value as a set. And stored in the storage means 207c.
The storage method is the same as the storage in the storage unit 206b in the first embodiment.

  Thereafter, the credit number increase rate monitoring unit 207 calculates the credit number increase rate for each gaming state based on the value stored in the storage unit 207c.

  Then, the credit number increase rate is compared with the credit number increase rate upper limit value 207d for each gaming state. If the credit number increase rate is larger than the upper limit value, the credit number increase rate monitoring means 207 sets the error flag 204 to the error state.

The payout performance of the gaming machine (the number of game media paid out per unit time) varies depending on the game state. Accordingly, it may be necessary to determine that the normal credit number increase speed is in the big hit state, but the abnormal credit number increase speed is in the normal gaming state.
When there is only one threshold value for the credit number increase rate determined to be an error, a value larger than the normal credit number increase rate in the big hit state is set as the threshold value in order to avoid false detection. This makes it difficult to detect fraud in the normal gaming state.

  According to the second embodiment, it is possible to determine an error in the credit number increase speed based on a threshold value that is different for each gaming state, so even a gaming machine having a gaming state with a different credit number increasing speed. , Can sufficiently prevent cheating.

  FIG. 3 is a schematic block diagram showing the configuration of a microcomputer according to the third embodiment of the present invention. In the third embodiment, in the first embodiment, a value indicating the position of the winning opening that triggered the increase in the number of credits is added to the storage of the set of the count value and the credit number increase value. A set of values is stored in the storage means 208c. Since it is the same as 1st Embodiment until it detects that the number of credits 203a increased, operation | movement after it is demonstrated.

When a game medium wins a winning opening, the gaming machine control program detects this, determines the number of payouts according to the position of the winning opening, that is, increases the number of credits, and performs an increasing process. At this time, the gaming machine control program stores a value corresponding to the position of the winning opening in the winning opening position 203c.
The credit number increase speed monitoring means 208 acquires the value of the winning opening position 203c in the same way as the credit number 203a is acquired. The address bus, data bus, and other control signals are monitored, and the value of the address bus By acquiring the value of the data bus when it matches the value of the mouth position address 208b.

When it is detected that the number of credits 203a has increased, the credit number increase rate monitoring means 208 acquires the value of the winning opening position 203c, and sets the three values of the count value, the winning opening position, and the increased credit number. And stored in the storage means 208c.
The storage method is the same as the storage in the storage unit 206b in the first embodiment.

  Thereafter, the credit number increase rate monitoring unit 208 calculates the credit number increase rate for each winning slot based on the value stored in the storage unit 208c.

  Then, the credit number increase rate is compared with the credit number increase rate upper limit value 208d for each winning slot. If the credit number increase rate is larger than the upper limit value, the credit number increase rate monitoring means 208 sets the error flag 204 to an error state.

A gaming machine generally has a different probability of winning depending on a winning opening. Accordingly, it is necessary to determine that even if the winning slot A is a normal winning frequency, if it is a winning slot B, it is an abnormal winning frequency.
When there is only one threshold for increasing the number of credits determined to be an error, a value larger than the rate of increasing the number of credits due to a winning opening having a high winning frequency is set as the threshold in order to avoid erroneous detection. This makes it difficult to detect fraud set at a winning opening with a low winning frequency.

  According to the third embodiment, it is possible to determine an error in the credit rate increase speed based on a different threshold value for each winning opening, so even a gaming machine having a winning opening having a different winning probability is sufficient. Can prevent cheating.

  FIG. 4 is a schematic block diagram showing the configuration of a microcomputer according to the fourth embodiment of the present invention. In the fourth embodiment, a continuous payout monitoring unit 209 is used instead of the credit number increase rate monitoring unit 206 in the first embodiment. Since it is the same as 1st Embodiment until it detects that the number of credits 203a increased, operation | movement after it is demonstrated.

When detecting that the number of credits 203a has increased, the continuous payout monitoring means 209 calculates the difference between the previous count value 209b and the current count value, and then stores the current count value in the previous count value 209b.
If the difference between the previous count value and the current count value is larger than the value of the continuous payout time interval 209d, the continuous payout count 209c is cleared to 0. Otherwise, 1 is added to the continuous payout count 209c.
The continuous payout count 209c is compared with the continuous payout count upper limit value 209e. If the continuous payout count 209c is larger than the upper limit value, the continuous payout monitoring means 209 sets the error flag 204 to an error state.

  The continuous payout time interval 209d is a time threshold value for distinguishing between continuous payout and single payout. The continuous payout number upper limit value 209e is a threshold value for determining how many times continuous payout continues to be an error.

  The gaming machine has an upper limit for the number of game media to be fired per unit time, and usually the game media are fired at regular time intervals corresponding to the upper limit. On the other hand, the flight time from when a game medium is launched until it wins a prize opening is not constant due to a collision with a nail and other game media. Therefore, even if there is a time interval shorter than the launch time interval from winning to the next winning, it is very rare that a large number of game media wins continuously in a short time interval.

  Thus, the combination of the continuous payout time interval 209d and the continuous payout number upper limit value 209e is a unique value according to the characteristics of the gaming machine. These values may be set by the CPU 201 as initial settings, or may be written simultaneously with the gaming machine control program.

  If it carries out like 4th Embodiment, the fraud which increases the number of credits rapidly can be prevented by repeating unauthorized payment many times in a short time.

  FIG. 5 is a schematic block diagram showing the configuration of a microcomputer according to the fifth embodiment of the present invention. In the fifth embodiment, the internal configuration of the credit number increase rate monitoring unit 206 in the first embodiment is changed to become a credit number increase rate monitoring unit 210. Since it is the same as 1st Embodiment until it detects that the number of credits 203a increased, operation | movement after it is demonstrated.

The down counter 210b included in the credit number increase rate monitoring unit 210 repeats the subtraction at the timing corresponding to the clock signal until the set value becomes zero.
On the other hand, when the credit number increase rate monitoring means 210 detects that the credit number 203a has increased, it adds the credit number increase value to the value of the down counter 210b and resets it in the down counter 210b. When the reset value is larger than the down counter upper limit value 210c, the error flag 204 is set to an error state.

FIG. 6 is a diagram showing a change in the value of the down counter 210b over time. Under normal conditions, when the number of credits increases, the value of the down counter increases by the increased value, but decreases with time and eventually becomes zero. The down counter 210b does not perform a counting operation when it becomes 0, and therefore does not become smaller than 0. Also, even if the number of credits increases again before reaching 0, the value of the down counter at that time increases by the credit number increase value, but eventually becomes 0.
On the other hand, in the case of an abnormality such as when the number of credits increases in a short time due to fraud, the number of credits increases one after another, so the value of the down counter gradually increases and eventually exceeds the upper limit value of the down counter. The error flag 204 is set to an error state at this time.

Here, an example of a down counter that subtracts at a timing corresponding to a clock signal has been described, but a similar effect can be obtained with an up counter that adds at a timing corresponding to a clock signal.
In that case, the up-counter operates in a range smaller than a certain maximum value, and when the number of credits increases, the increment is subtracted from the counter value and becomes smaller than the up-counter lower limit value. 204 will be set to an error state.

  According to the fifth embodiment, it is possible to prevent fraud in which the number of credits is rapidly increased by repeating illegal payouts in a short time.

  FIG. 7 is a schematic block diagram showing a configuration of a microcomputer according to the sixth embodiment of the present invention. The microcomputer 20e includes a CPU 201, a ROM 202, a RAM 211, and a counting unit 205. In this embodiment, the credit number increase rate monitoring function of the first embodiment is realized by software executed by the CPU 201. The credit number 211a, a count value and credit number increase value group 211b, a credit number increase rate 211c, Each data of the credit number increase speed upper limit value 211 d and the error flag 211 e exists in the RAM 211.

  FIG. 8 is a flowchart showing the flow of credit amount increase rate monitoring processing in the present embodiment.

  In step S101, it is determined whether or not the number of credits 211a has increased. If the credit number 211a has not increased, this processing is terminated, and if it has increased, the following processing is performed.

In step S102, the value of the counting means 205 is read. In step S103, data 211b in which the count value and the credit number increase value are paired is stored.
In step S104, the sum of the credit number increase values is calculated for two or more sets of the count value and the credit number increase value. As the count value at that time, the maximum value and the minimum value are obtained in step S105, and the difference is calculated.

  In step S106, the total value of the credit number increase values obtained in step S104 is divided by the difference between the maximum value and the minimum value of the count values obtained in step S105 to obtain the credit number increase rate 211c. In step S106, it is determined whether or not the credit number increase rate 211c exceeds the credit number increase rate upper limit value 211d. If it exceeds, the error flag 211e is set in an error state in step S107.

  In this way, since a sudden increase in the number of credits can be recognized as an error state, the game ball detection means at the winning opening is irradiated with electromagnetic waves, or the detection signal is electrically interfered with, thereby winning It is possible to prevent an act of abruptly increasing the number of credits due to a fraudulent act that misrecognizes the main control unit when a prize is won.

  FIG. 9 is a schematic block diagram showing a configuration of a microcomputer according to the seventh embodiment of the present invention. The microcomputer 20f includes a CPU 201, a ROM 202, a RAM 212, and a count unit 205. In this embodiment, the credit number increase rate monitoring function of the fifth embodiment is realized by software executed by the CPU 201. Each of the credit number 212a, the down counter value 212b, the down counter value upper limit value 212c, and the error flag 212d The data exists in the RAM 212.

  FIG. 10 is a flowchart showing the flow of credit amount increase rate monitoring processing in the present embodiment.

  In step S201, it is determined whether or not the number of credits 212a has increased. If not, the process jumps to step S205 in which down-count processing is performed.

  In step S202, the value obtained by increasing the credit number 212a is added to the down counter value 212b. In step S203, it is compared whether or not the added down counter value 212b exceeds the down counter value upper limit value 212c. If exceeded, the error flag 212d is set to an error state in step S204. If not, the process jumps to step S205 for down counting.

  In step S205, the value of the count means 205 is read, and it is determined in step S206 whether or not the value is the down-count timing. If it is not time to count down, this process ends. If it is a down count timing, 1 is subtracted in steps S207 and S208 if the down counter is not 0.

FIG. 6 is a diagram showing a change in the value of the down counter 210b according to the fifth embodiment with the passage of time, but the down counter 212b according to the present embodiment also shows a change with the passage of time in the same manner.
That is, if it is normal, the value of the down counter decreases with time and eventually becomes zero.
On the other hand, in the case of an abnormality such as when the number of credits increases in a short time due to fraud, the number of credits increases one after another, so the value of the down counter gradually increases and eventually exceeds the upper limit value of the down counter. The error flag 204 is set to an error state at this time.

  If it carries out like 7th Embodiment, the fraud which increases the number of credits rapidly can be prevented by repeating unauthorized payment many times in a short time.

  FIG. 11 is a schematic block diagram showing a configuration in the case of controlling a gaming machine using two control boards using a microcomputer according to the present invention.

  In the main control board 1, when the microcomputer 10 reads the signal from the winning sensor 4 through the input / output port 11 and the game medium wins, the input / output port 11 is used to pay out the corresponding number of game media. The payout instruction is transmitted to the payout control board 2 via

  In the payout control board 2, the microcomputer 20 receives a payout instruction from the main control board 1 via the input / output port 21, and adds the instructed number to the value of the credit number 203 a stored in the RAM 203. Similarly, when a player rents a ball prior to the game, the microcomputer 20 receives a payout instruction from the ball lending device 5 via the input / output boat 21 and adds the indicated number to the value of the credit number 203a. To do.

  Although not shown in FIG. 11, when the microcomputer 20 receives a signal indicating that the game ball launching device has launched a game ball, the credit number 203a is subtracted.

  FIG. 12 is a schematic block diagram showing a configuration in the case of controlling a gaming machine using one control board using the microcomputer according to the present invention.

  In the case of a pachinko machine, the game medium sensor 6 is a game ball winning sensor, and the microcomputer 20 receives a winning signal via the input / output port 31. When the winning of the game ball is confirmed, the number of prize balls is added to the value of the credit number 203a stored in the RAM 203 instead of paying out the game ball itself as a prize ball.

  In the case of a pachislot machine, the game medium sensor 6 is a medal sensor at a game medal slot. When confirming the insertion of the game medal, the microcomputer 20 adds the number of game medals inserted to the value of the credit number 203 a stored in the RAM 203.

  In both cases of pachinko machines and pachislot machines, the present invention can effectively prevent fraud against the game medium sensor 6 for the purpose of rapidly increasing the number of credits 203a.

2 Dispensing control board 3 Main control board 20 Microcomputer 201 CPU
203 RAM
204 Error flag 205 Counting means

Claims (5)

In a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases or decreases the number of credits instead of increasing or decreasing the number of possessed balls associated with the game,
When the credit number increases, the credit number increase value and the count value output by the counting means counting the clock signal are stored in the storage means as a set,
Aggregate two or more sets of credit number increase values and count values already stored in the storage means to obtain the total increase value and the number of clocks required for the increase, and obtain the increase rate of the credit number from these values,
A microcomputer for a gaming machine, wherein an error flag is set to an error state when the increase rate is larger than an upper limit value of a credit number increase rate stored in advance. In a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases or decreases the number of credits instead of increasing or decreasing the number of possessed balls associated with the game,
When the credit number increases, the credit number increase value, the count value output by the counting means counting the clock signal, and the value representing the gaming state of the gaming machine are stored in the storage means,
Two or more sets of credit number increase values, count values, and game state values that are already stored in the storage means are aggregated for each game state, and the total increase value and the number of clocks required for the increase From these values, the rate of increase in the number of credits is determined for each gaming state,
A gaming machine microcomputer characterized in that an error flag is set to an error state when the credit number increase speed is larger than the upper limit of the credit number increase speed corresponding to each gaming state. In a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases or decreases the number of credits instead of increasing or decreasing the number of possessed balls associated with the game,
When the number of credits increases, the credit number increase value, the count value output by the counting means counting the clock signal, and the value indicating the position of the winning opening that triggered the increase in the credit number are paired Is stored in the storage means,
Two or more sets of credit value increase value, count value, and value indicating the position of the winning opening already stored in the storage means are totaled for each winning opening, and the total increased value and the number of clocks required for the increase are calculated. From these values, the rate of increase in the number of credits is determined for each winning slot
A microcomputer for a gaming machine, wherein an error flag is set to an error state when the credit number increase speed is greater than the upper limit of the credit number increase speed corresponding to each winning opening. In a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases or decreases the number of credits instead of increasing or decreasing the number of possessed balls associated with the game,
When the number of credits increases, the count value output by the counting means counting the clock signal is stored in the storage means,
The difference between the previous count value stored in the storage means and the current count value is calculated, and if the difference is larger than the pre-stored continuous payout time interval, the number of continuous payouts is cleared to 0. Otherwise, 1 is added to the number of continuous payouts, and if the number of continuous payouts is larger than the previously stored upper limit value of the continuous payout times, an error flag is set to an error state. For microcomputer. In a gaming machine that electronically stores the number of possessed balls as the number of credits and electronically increases or decreases the number of credits instead of increasing or decreasing the number of possessed balls associated with the game,
It has a down counter that subtracts the set value at the timing of the clock signal until it becomes 0,
When the number of credits increases, the credit number increase value is added to the down counter value and reset in the down counter, and the reset down counter value is larger than the pre-stored down counter upper limit value. A microcomputer for gaming machines, wherein an error flag is set to an error state.

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