JPH02257973A - Pin ball game machine - Google Patents

Abstract

PURPOSE:To improve game properties by a method wherein based on random numbers generated by a plurality of random number generating means having generation probability distribution of a hit random number, a specifying means to specify the random number generating means, and the specified random number generating means, a mode is decided. CONSTITUTION:An RAM 8 is provided with a random number memory 81 to store random numbers hourly generated according to one selected random number table effective to decision of a hit mode and a deterministic memory 82 to store a defined random number by which a hot mode is decided. A deterministic memory 82 has the number of memories equivalent to the number of holding prize balls + 1 at a specified prize slot. A random number to each holding prize ball is temporarily decided during prizing and is stored in each deterministic memory 82. When a stop switch 20 is not pressed during a given time starting from the fluctuation of a numeric value display 27, a primarily decided random number is defined as a random number for deciding a mode. When the stop switch 20 is pressed during a given time starting from the fluctuation of a numeric value display 27, a random number generated upon pressing of the stop switch 20 is defined as a random number for deciding a mode.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a pachinko machine in which the probability distribution of random numbers that determine the winning mode can be changed according to various conditions at the game parlor side.

[Prior art]

In recent years, pachinko machines use computers to electronically control the winning probability of balls. In such pachinko machines, in order to determine the winning mode, an event represented by chance occurs, the winning mode is determined from that event, and the development of a more complicated game is controlled in response to the winning mode. I have to. In order to cause events that depend on chance, software means such as random number tables and hard means such as Karatan are used. These random number generating means determine the mode of winning or not using random numbers generated at the winning timing or the like.

[Problem to be solved by the invention]

However, the above random number generation means has a regulation that the probability of occurrence of the winning mode, that is, the number of winnings relative to the number of winnings in a specific winning opening, must be a predetermined value. The probability of occurrence is subject to macro constraints. Therefore, the random number for the winning mode must be generated periodically. That is, the rate distribution of random numbers in the winning mode with respect to time is fixed. In addition, in the case of a random number table that is rotated over time, this occurrence probability distribution will be the placement distribution of winning random numbers on the table. Then, since the occurrence probability distribution is fixed, for a skilled player,
It is possible to see through the probability distribution of such occurrences, and it becomes possible to perform operations that intentionally increase the occurrence of winning modes. Furthermore, since pachinko balls are fired continuously, there is a risk that the tendency of the winning mode to occur will be fixed, which will impair the gameplay. Furthermore, from a management standpoint, the game parlor may want to change the probability distribution of winning modes depending on the number of players entering the game. The present invention has been made to solve the above problems, and its purpose is to change the tendency of the winning mode to occur while keeping the probability of occurrence of the winning mode constant, thereby improving game playability. The aim is to improve the

[Means to solve the problem]

The structure of the invention for solving the above problems is to generate a random number according to the winning of a ball in a specific winning hole, determine a hit or miss mode according to the generated random number, and 1. In a pachinko machine that controls the winning probability of a ball entering a winning hole, means for generating a random number for determining the mode when a ball enters a particular winning hole, the means for generating a random number for determining the mode when a ball enters a particular winning hole, the means for generating a random number having different occurrence probability distributions of winning random numbers. random number generation means, designation means for designating the random number generation means effective for determining the mode, and mode determination means for determining the mode based on the random number generated by the random number generation means designated by the designation means. It is characterized by having the following.

[Effect]

The pachinko machine having the above configuration has a plurality of random number generating means having different probability distributions of occurrence of winning random numbers, and the random number generating means can be externally specified by a specifying means. Then, a random number for determining the winning mode is generated using the designated random number generating means. Therefore, by manually changing the tendency of random numbers to occur at the game parlor, or by controlling the input to the specifying means with the output of a timer, the winning mode can be changed over time. It becomes possible to change the occurrence tendency.

【Example】

The present invention will be described below based on specific examples. FIG. 2 is an external view of the game board 51. The game board 51 is provided with various winning holes, among which 52, 53, 54.
is a specific winning slot, and if you win in that specific winning slot,
A combination operation is started to determine the winning mode. 56.
59.60 is a normal winning opening, and 61.62 is a winning opening with a tulip type accessory. Reference numeral 63 is a large prize opening which is opened and closed according to the winning mode, and an opening/closing door 64 is opened and closed by a solenoid 41 provided inside. In addition, in the center of the big prize opening, there is a prize winning slot 6.
5 is provided 2, and when a prize is won in the prize opening, the opening/closing door 64 generates the right to continue opening and closing. In the center of the game board 51, there are specific winning holes 52, 53, 54.
A numerical display 27 and a lamp display 29 are provided to display the chance combination state when a ball wins a prize. The numerical display 27 is a three-digit LED display, and the lamp display 29 is a lamp in which red and blue LEDs are arranged cyclically. When a prize is won in a specific winning slot, the three-digit numerical value displayed on the numerical display 27 changes. and,
When the player presses the stop switch 20 within a predetermined time after winning a prize, or when the predetermined time elapses, the fluctuating numerical value stops. Note that the fluctuating numerical value on the numerical display 27 is unrelated to the rotation of the random number table. When the rotation of the numerical value display 27 stops, regardless of the fluctuating numerical value at that time, when a prize is won, when the stop switch 20 is pressed, when the mode is determined, or at any other arbitrary time, another Numerical values determined by the numerical table for displaying hits and misses are displayed on the numerical display 27. Moreover, when the random number for mode determination is determined, the mode is determined from that value, and the opening time of the opening/closing door 64 of the big prize opening 63 is controlled according to the mode. Furthermore, the game board 5I is provided with various indicators and lamps for displaying operating conditions. 30 in the center is
This is a memorized number display for displaying the number of pending winning balls that have entered a specific winning hole and are pending winning processing. 47a
~47j, during the combination operation to determine the mode,
It is a flashing operating lamp. 43a to 43c are panic lamps that flash together with lamps 47a to 47j when a jackpot is won. Further, 45a to 45c are V lamps that flash when there is a prize in the (1) winning prize slot 63. FIG. 1 is a block diagram showing the electrical configuration of the device of this embodiment. A microcomputer 1 is used as a control device. An external ROM 3 and an external RAM 8 are connected to the microcomputer l. The ROM 3 contains three random number tables I31.1 to determine the winning mode shown in FIG. Random number table ■
A 32° random number table I[33 is provided. In each random number table, a number of winning random numbers corresponding to the probability of occurrence of a winning mode is written with respect to the total number of random numbers. The distribution of the winning random numbers on the table is as shown in FIG. That is, the random number table I is shown in Fig. 7 (
As shown in a), the winning random numbers are arranged approximately evenly, and in the random number table ■, as shown in Figure 7(b), the winning random numbers are localized in the latter half. 7
As shown in Figure (C), the winning random numbers are localized at two locations. On the other hand, the RAM 8 includes a random number memory 81 that stores random numbers generated from time to time based on one selected random number table that is effective for determining the winning mode, and a fixed memory that stores determined random numbers that determine the winning mode. 82 is formed. The confirmation memory 82 has a memory equal to the number of reserved winning balls in the specific winning hole +1. The random number for each pending winning ball is primarily determined at the time of winning, and the secondary random number is stored in each confirmed memory 82 and displayed on the numerical display 27.
If the stop switch 20 is not pressed within a predetermined period of time after the change, the subsequently determined random number is determined as the random number for mode determination. Furthermore, if the stop switch 20 is pressed within a predetermined time after the numerical display 27 changes,
The random number generated when the stop switch 20 is pressed is determined as the random number for mode determination. On the other hand, a winning detection switch 7 that detects winning balls in a specific winning opening, a winning opening detection switch 9 that detects winning balls in a special winning opening, a V winning detection switch 11 that detects winning balls in a winning opening, and a stop switch. 20 is connected to the microcomputer 1 via a waveform shaping circuit 13 consisting of a flip-flop to prevent chattering. The clock generation circuit I7 outputs an external interrupt signal to the INT terminal of the microcomputer 1 via the frequency divider 15. Then, the microcomputer 1 executes the main program shown in FIG. 4 in synchronization with the external interrupt signal. Further, a timing signal output from the timing signal generation circuit 18 is input to the R3Tl terminal of the microcomputer 1, and a random number generation program shown in FIG. 5 is activated in synchronization with the timing signal. Further, 21 is a power supply circuit, the signal of the start switch 23 is input to the reset signal generation circuit 19, and the output signal of the reset signal is input to the R3T of the microcomputer 1.
It is input to the 2nd terminal, and the 3rd terminal is input by the reset signal.
The initial program shown in the figure is started. 5 is an external switch for specifying a valid random number table from among the random number tables ■, ■, and ■. A valid random number table is specified depending on the operating state of this switch. A display drive circuit 25, a display selection circuit 28, and a driver 39 are connected to each output port of the microcomputer 1. Display drive circuit 25, display selection circuit 28
The above-mentioned numerical value display 27, lamp display 29, and memory number display 3o are connected to. These displays are dynamically driven by outputting selection data and display data from the microcomputer 1 at regular intervals. That is, each display unit is selected by the display selection circuit 28 and displayed according to the output signal of the display drive circuit 25 at that time. The driver 39 drives the solenoid 41 in response to a signal from the microcomputer 1, and controls the lighting operations of the panic lamp 43, the ■ lamp 45, and the operation lamp 47. Next, the operation of the pachinko machine having such a configuration will be explained based on a flowchart showing the processing procedure of the microcomputer 1. (1) When the initial set start switch 23 is turned on when the power is turned on, power is supplied to the microcomputer 1, and the reset signal generation circuit 19 outputs the reset signal S4 to the RST2 terminal. Then, the CPUI executes the process shown in FIG. That is, the three-digit numerical register X1. X2
．． X3 is set to the initial value, and the display lamp register L, which stores the lighting lamp of the lamp indicator 29, is set to the initial value. In addition, the winning ball counter C, which counts the number of pending winning balls that have entered a specific winning hole and is on hold, is set to zero, and the winning ball counter G, which counts the number of winning balls that have entered the grand winning hole, is set to zero.
2. Initialize the V winning ball counter A, which stores the presence or absence of a pending winning ball in the winning hole, to zero. Also, the state register F that stores the control state is initialized to zero, the mode register R that stores the mode is initialized to zero, and the timers Tl, T2 . T
3 is initialized to zero. Then, the address I of the random number table for determining the random number generated from the valid random number table is set to an initial value of 1. (2) Rotation of random number table and numerical table In parallel with the processing of the main program shown in FIG. 4, the random number generation program shown in FIG. 5 is activated in synchronization with the timing signal input from the R5Tl terminal. That is, in step 200, the state of the random number table designation switch 5 is input, and in the next step 202, the state of the random number table designation switch 5 is input.
The numerical value stored at address (2) is read from the random number table specified by , and the numerical value is stored in the random number memory 81 as a three-digit numerical value. Then, in the next step 204, it is determined whether or not the value of the address I is the final value of the address in the valid random number table. If it is not the final value, the address l is updated by 1 in step 206, and the main random number generation program is terminated. Further, if it is determined in step 204 that the value of the address ■ is the final value, the process moves to step 208 and the address I
is set to an initial value of 1. In this way, a valid mode-determining random number designated by the random number table designation switch 5 is generated in the random number memory 81 at any time after the pachinko machine is reset. The random number generation rate at this time is determined by the timing signal output from the timing signal generation circuit 18. Therefore, when random number table I is selected, the tendency of occurrence of winning random numbers becomes uniform even in short periods, as shown in FIG. 7<a>. On the other hand, if the random number table ■ or the random number table ■ is selected, as shown in Fig. 7 (c).
, (C), the tendency of occurrence of winning random numbers is localized at one or two locations in a short period. Note that the probability of occurrence of a winning random number in a long period is the same for all three random number tables because the number of winning random numbers included in the three random number tables is the same. Note that the address of a valid random number table may be stored in the random number memory 81, and the numerical value at that address may be read at the time of display. (3) Main program After initial setting, the CPUI executes the main program shown in FIG. 4 every time an external interrupt signal output from the frequency divider 15 is input. In step 100, a timer update process is performed, and in step 102, the state signals 31, 32 . S3 is loaded. These status signals are composed of negative logic, and when the signals are at a low level, the switch is on, indicating that a winning ball has been detected. Therefore, step 104.110.114
The falling edge of each state signal is detected, and only at that time, the counters C, G, and A are updated by 1. However, the number of pending winning balls is
So, I try to only count up to 4. Then, when a winning in the specific winning hole is detected, the determination in step 104 becomes YES, and if the number of reserved winning balls is smaller than 4 in step 106, step 108
In step 109, the winning ball counter C is updated by 1.
The value of random number memory 81 at that time is confirmed memo 'JM(C)
82. In other words, when a winning ball is detected in a specific winning hole when there are no pending winning balls, the winning ball counter C becomes 1.
The value of the random number memory 81 at that time is the fixed memory M(
1). Further, when the winning ball counter C is 1 or more, if a winning ball is further entered into a specific winning hole, that winning ball becomes a reserved winning ball, and the winning ball counter C is incremented by 1. Then, the value of the random number memory 81 at the time of winning is stored in the confirmation memory M(C) corresponding to the reserved winning ball. In this way, when a specific winning hole is won, a primary random number for determining the winning mode is determined. The next steps 118 to 166 are processing steps corresponding to each state. (a) Processing when there is no winning ball When there is no winning ball, that is, when the counter C is 0, the processing of steps 100 to 124.170 is performed, and the numerical display and lamp display container, each lamp group,
Perform a predetermined display. (b) The value of counter C is determined in the combination operation processing step 124, and when a contribution is detected, the value of counter C is subtracted by 1, register F is set to 1 to indicate the combination operation state, and timer TI is activated. It is set to a predetermined value (steps 124 to 128). and,
As the winning ball counter C is decremented in step 129, a confirmation memo is sent! The contents of JM(C) are incremented one by one and updated. Next, in step 130, it is determined whether or not the timer TI has timed up. If it is determined that the timer TI has not timed up, it is determined in step 131 whether or not the stop switch 20 has been pressed, and if the stop switch 20 has not been pressed. If so, the process moves to step 170, and processing such as displaying that the combination operation is in progress on the lamp display is executed. Then, in the subsequent execution cycle, the value of register F is 1.
Since the determination in step 118 is YBS.
and branches to step 130, step 130.1
31. The process of 170 is repeatedly executed. Then, in a subsequent execution cycle, if it is determined in step 131 that the stop switch 20 has been pressed, the process moves to step 132, and the value of the random number memory 81 at that time is stored in the fixed memory M(0). , definite memory M (0
) - The next determined random number is rewritten by the finally determined random number. Further, if it is determined in step 130 that the timer T1 has timed up, the process moves to step 134, and the confirmed memo UM(
The primary random number stored in 0) is determined as the final random number. Then, in step 134, which is executed when a predetermined time has elapsed or the stop switch 20 is pressed, the winning mode is determined from the value in the determination memory M (0), and the winning mode is set in the mode register R. The values set in the mode register R are 0 for a miss, 1 for a small hit, 2 for a medium hit, and 3 for a jackpot. Next step 1
Confirmed memo on 36th! The value of 7M(0) is displayed on the numerical display 27 to inform the player of the determined random number. Next, in step 139, it is determined whether the ball is a hit or a loss based on the value of the register R. If it is a loss, the process proceeds to step 140, where the register F is set to 0 and the process proceeds to the next winning ball judgment cycle. Here, the winning mode is determined from the established random numbers, but since the tendency of the random numbers to occur differs depending on the type of random number table, the tendency of the winning mode to occur will also change depending on the distribution of the winning random numbers in the valid random number table. It turns out. (c) Processing in case of winning Step 1390 When the determination result is a winning, a time is set in the timer T2 in step 144 according to the mode. Then, in step 146, it is determined whether or not the timer T2 has timed up, and in step 148, the counter G
It is determined whether the value of has become 10 or not. If the counter G is less than 10 before the timer T2 times up, the process moves to step 170, and the solenoid 41 is activated so that the opening/closing door 64 is opened so as to be controlled as a panic.
is operated, and other lamp indicators 29, panic lamps 43a to 43c, etc. are blinked. In subsequent execution cycles, the value of register F is set to 2, so the determination result at step 120 is Yt! S, the process branches to step 146, and timer T2 is activated at step 146.
The processes of steps 100 to 120, 146, 148, and 170 are repeatedly executed until it is determined that the time has expired or it is determined that the counter G has reached 10 in step 148. As a result, the big prize opening remains open for a predetermined period of time, and the lamp group displays a panic state. In the subsequent process, when it is determined in step 148 that the number of winning balls into the big winning hole is 10, the same process as the time up is performed even before the time up. That is, in step 150, the counter G is set to 0 and the register R is set to 0. (d) Processing when a V-winning ball exists When it is determined that the jackpot mode is in step 154, if a V-winning ball exists when the jackpot is open, that is, the counter A is set to 1 in step 156. When it is determined that this is the case, the value of register F is set to 3 in step 158 to indicate the occurrence of the continuation right. And step 16
2, timer T3 is set to a predetermined time, and step 164
Determine the time up. This process is to provide a certain delay until the grand prize opening is subsequently opened. Thereafter, in step 166, the register R is set to the value 3 indicating a jackpot, and the process proceeds to step 142, where the above-mentioned processing at the time of winning is performed. However, the continuation right is adjusted in step 152 so that it does not occur more than 10 times. In the above embodiment, the numerical value display 27 displays numerical values, but it may also be a pattern or the like. In addition to the random number table, the random number generation means may be composed of a counter and means for sequentially updating the numerical value of the counter, or may be a random number generation function. In addition, the means for specifying an effective random number generation means includes not only a switch by manual input, but also a means for selecting and specifying a random number generation means for each predetermined time period using the output of a timer, and a means for specifying a random number generation means by remote control. may be selected, or a combination of these methods may be used. As described above, the timing for determining the random number for determining the winning mode may be determined at another timing determined in response to winning, in addition to when winning a prize or when the stop switch 20 is pressed. Further, generating random numbers as described above can be used not only for pachinko machines but also for other gaming machines that generate chance, such as throttle machines.

【Effect of the invention】

The present invention is a means for generating random numbers for determining a mode when a prize is entered in a specific contribution opening, and comprises a plurality of random number generating means having different probability distributions of occurrence of winning random numbers, and a random number effective for determining the mode. Since it has a designation means for designating the generation means and a mode determination means for determining the mode based on the random numbers generated by the random number generation means designated by the designation means, , or
By setting the time of a timer or the like, it is possible to change the tendency of the winning mode to occur, thereby making it possible to improve the game performance of the pachinko machine.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the electrical configuration of a pachinko machine according to a specific embodiment of the present invention, Fig. 2 is a plan view showing the appearance of the game board, Figs. , 5th
The figures are a flowchart showing the processing procedure of the microcomputer used in the pachinko machine of the same embodiment, and FIG. 6 is an explanatory diagram showing an example of a random number table with a different probability distribution. FIG. 7 is an explanatory diagram showing different probability distributions of the random number table. 27--Numeric display 29--Lamp indicator 30
... Memory number display 43a ~ 43cm Panic lamp 45a ~ 45cm V lamp 47a ~ 47j - Operation lamp 50° / Frame 51 Game fi 52.53.51 - Specific prize opening 63゛ Grand prize opening ・64 Opening/closing door 65゛V prize opening 81 Random number memory 82° Determined memory Patent applicant Sanyo Bussan Co., Ltd. Patent attorney Osamu Fujitani Figure 2 Tomoe 20 Figure Figure

Claims (1)

[Claims] A random number is generated in response to the entry of a ball into a specific winning opening, a hit or miss mode is determined according to the generated random number, and the ball is placed into the winning opening in accordance with the mode. In a pachinko machine that controls winning probability, means for generating random numbers for determining the mode when a winning is won in the specific winning opening, the plurality of random number generating means having different probability distributions of occurrence of random numbers; The present invention is characterized by comprising: a designation means for designating the random number generation means effective for determining the mode; and a mode determination means for determining the mode based on the random number generated by the random number generation means designated by the designation means. Pachinko machine.