JP4459614B2 - Amusement stand - Google Patents

Description

  The present invention relates to a game machine represented by a slot machine (pachi-slot).

  In recent slot machines, many players can acquire game media such as medals in a short time. Such slot machines tend to release a large amount of game media in a short time, but also tend to prolong the period during which they do not win bonuses, etc. (so-called traps), which is attractive for players aiming for a one-time reversal. However, there is a problem that players who are not so tend to be shunned and the ability to attract customers does not work as a whole. In addition, such a rough slot machine has a tendency that the ball does not change as the store expects. That is, the game medium is unexpectedly expelled or no bonuses are hit, and it is difficult for the store side to make a business plan. Furthermore, if the player can acquire too many game media in a short period of time, it is not preferable in terms of social morals. Therefore, for example, as described in Patent Document 1, a slot machine having a function of suppressing a large amount of game media from being paid out has been proposed.

JP 2002-346028 A

  However, in the slot machine described in Patent Document 1, if the function of suppressing the payout of the game medium is activated, there is a case where the ball is naturally stopped during the game. For this reason, it is not uncommon for the player to feel uncomfortable, and there is a risk of being shunned by the player.

  Accordingly, an object of the present invention is to provide a game table that can adjust the payout of game media so as not to make the player feel uncomfortable.

According to the present invention, a plurality of reels which are provided with a plurality of types of patterns and are driven to rotate, a lottery means for determining whether or not an internal winning of a plurality of types of winning combinations is won by lottery, and the rotation of the reels are started. A start switch, a stop switch for individually stopping the rotation of the reel, and a reel for performing stop control of the reel based on at least a lottery result of the lottery means And a stop control means, and a winning determination means for determining a winning based on whether or not the combination of the pictures displayed by the reels at the time of the stop is a predetermined picture combination. game is started in the condition, in the gaming table to gaming media are paid out in accordance with the determination result of the winning determination means, wherein in a period of time relative to the number of games The total payout number of tricks medium, comprising a calculating means for calculating the payout rate is calculated by dividing the total input number, the winning combination is replay auditors insertion of the game medium for the next game is exempt And a big bonus in which the gaming state shifts from a normal game to a big bonus game by winning a prize, and the first winning probability as the winning probability of the internal winning of the replay in the big bonus game , Two types of winning probabilities that are lower than the first winning probability are set, and when winning the big bonus, the winning probability of the replay to be adopted through the big bonus game to be executed thereafter is set. kinds, comprising a selection means for selecting according to a predetermined condition, the predetermined condition is, the a payout rate, the selection means, a threshold which the payout rate is predetermined The second winning probability is selected when the game is played, and the first winning probability is selected when the payout rate does not exceed the threshold, while the first winning probability is selected from when the gaming machine is turned on until the predetermined period elapses. A gaming machine characterized by selecting one winning probability is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the game stand which can adjust payout of a game medium so that a player may not feel discomfort can be provided.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a slot machine 100 according to an embodiment of the present invention.

<Overall configuration>
In the center of the main body 101 of the slot machine 100 shown in FIG. 1, three reels (a left reel 110, a middle reel 111, and a right reel 112) having a plurality of types of patterns arranged on the outer peripheral surface are stored. It is configured to be able to rotate inside. In this embodiment, an appropriate number of each pattern is printed on the belt-like member at equal intervals, and the reels 110 to 112 are configured by sticking this belt-like member to a predetermined circular frame material. When viewed from the player, approximately three patterns on the reels 110 to 112 are displayed in the vertical direction from the pattern display window 113 so that a total of nine patterns can be seen. Then, by rotating each of the reels 110 to 112, the combination of pictures that can be seen by the player varies. In the present embodiment, three reels are provided in the center of the slot machine 100, but the number of reels and the installation position of the reels are not limited to this.

  In addition, a backlight (not shown) for illuminating each picture displayed on the picture display window 113 is disposed on the back surface of each reel 110 to 112. It is desirable that the backlight is shielded for each pattern so that each pattern can be illuminated evenly. In the slot machine 100, an optical sensor (not shown) including a light projecting unit and a light receiving unit is provided in the vicinity of each of the reels 110 to 112. The light projecting unit and the light receiving unit of the optical sensor are provided. A light shielding piece of a certain length provided on the reel passes between the parts. Based on the detection result of this sensor, the position of the pattern on the reel in the rotation direction is determined, and the reels 110 to 112 are stopped so that the target pattern is displayed on the winning line 114.

  The winning line display lamp 120 is a lamp that indicates an effective winning line. An effective pay line is determined in advance by the number of game media (in this embodiment, medals are assumed) inserted into the slot machine 100. Of the five winning lines 114, for example, when one medal is inserted, the middle horizontal winning line is valid, and when two medals are inserted, the upper horizontal winning line and the lower horizontal winning line are added. When three medals are inserted and three medals are inserted, the five added with the right-down winning line and the upper-right winning line become effective as the winning line. Note that the number of winning lines 114 is not limited to five.

  The start lamp 121 is a lamp that informs the player that the reels 110 to 112 are in a state of being able to rotate. The re-playing lamp 122 is a lamp for notifying the player that the current game can be replayed (no medal insertion is required) when winning a re-playing role that is one of the winning roles in the previous game. is there. The notification lamp 123 is a lamp that informs the player that a specific winning combination (specifically, a bonus such as a big bonus or a regular bonus) is won internally in an internal lottery described later. The medal insertion lamp 124 is a lamp that notifies that a medal can be inserted. The reel panel lamp 128 is an effect lamp. The medal insertion buttons 130 and 131 are buttons for inserting a predetermined number of medals stored electronically in the slot machine 100.

  In this embodiment, every time the medal insertion button 130 is pressed, a maximum of three are inserted one by one, and when the medal insertion button 131 is pressed, three are inserted. The medal slot 134 is an slot for a player to insert a medal when starting a game. In other words, the medal can be inserted electronically by the medal insertion button 130 or 131, or the actual medal can be inserted from the medal insertion slot 134. The insertion means to include both. The payout number display 125 is a display for displaying the number of medals to be paid out to the player as a result of winning a winning combination. The game number display 126 is a display for displaying the number of games during the big bonus game (in the BB game), the number of winnings of a predetermined winning combination, and the like. The stored number display 127 is a display for displaying the number of medals electronically stored in the slot machine 100.

  The start lever 135 is a lever type switch for starting the rotation of the reels 110 to 112. That is, when a desired medal number is inserted into the medal slot 134 and the start lever 135 is operated, the reels 110 to 112 start to rotate. The stop button unit 136 is provided with stop buttons 137 to 139. The stop buttons 137 to 139 are button type switches for individually stopping the reels 110 to 112 that have started rotating by operating the start lever 135. Note that a light emitter may be provided inside each stop button 137 to 139, and when the stop button 137 to 139 can be operated, the light emitter may be turned on to notify the player.

  The storage / settlement button 132 settles a medal electronically stored in the slot machine 100 and discharges it to the tray 210 from the medal payout outlet 155, and the four or more sheets inserted into the medal slot 134. This is a button for switching between a storage function for electronically storing up to 50 medals and medals obtained by winning. The medal return button 133 is a button that is pressed to remove a medal when the inserted medal is clogged. The door key 140 is a hole into which a key for unlocking the front door 102 of the slot machine 100 is inserted. The medal payout exit 155 is a payout exit for paying out medals. The medal tray 210 is a container for collecting medals paid out from the medal payout opening 155. In this embodiment, the medal tray 210 employs a tray that can emit light, and may be hereinafter referred to as a tray lamp.

  The sound hole 160 is a hole for outputting the sound of a speaker provided inside the slot machine 100 to the outside. The upper lamp 150, the side lamp 151, the center lamp 152, the waist lamp 153, the lower lamp 154, and the saucer lamp 210 are decorative lamps for exciting the game. The ashtray unit 200 is a container for containing cigarette butts, and is screwed inside the tray 210. The reel panel 161 is a panel having a pattern display window 113, and the title panel 162 is a panel on which the model name of the slot machine and various designs are drawn. The liquid crystal display device 600 displays various information.

<Control unit>
Next, the circuit configuration of the control unit of the slot machine 100 will be described in detail with reference to FIGS. The slot machine 100 includes a main control unit 300 that controls a central part of the game, a sub control unit 400 that controls various devices in accordance with signals transmitted from the main control unit 300, and a signal transmitted from the sub control unit 400. And a liquid crystal display device control unit (not shown) for controlling the liquid crystal display device 600 and the like.

<Main control unit>
First, the main controller 300 of the slot machine 100 will be described with reference to FIG. The main control unit 300 includes a CPU 310 that is an arithmetic processing unit for controlling the entire main control unit 300, a data bus and an address bus for the CPU 310 to transmit and receive signals to and from each IC and each circuit, It has the structure described below. The clock correction circuit 314 is a circuit that divides the clock oscillated from the crystal oscillator 311 and supplies it to the CPU 310. For example, when the frequency of the crystal oscillator 311 is 12 MHz, the divided clock is 6 MHz. The CPU 310 operates by receiving the clock divided by the clock circuit 314 as a system clock.

  The CPU 310 is connected to a timer circuit 315 for setting a monitoring cycle for constantly monitoring the states of sensors and switches, which will be described later, and a transmission cycle of motor drive pulses, via a bus. When the power is turned on, the CPU 310 transmits the frequency dividing data stored in the predetermined area of the ROM 312 to the timer circuit 315 via the data bus. The timer circuit 315 determines an interrupt time based on the received frequency division data, and transmits an interrupt request to the CPU 310 at each interrupt time. In response to this interrupt request, the CPU 310 executes monitoring of each sensor and transmission of drive pulses. For example, when the system clock of the CPU 310 is set to 6 MHz, the frequency division value of the timer circuit 315 is set to 1/256, and the data for frequency division of the ROM 312 is set to 44, the reference time for this interrupt is 256 × 44 ÷ 6 MHz = 1. 877 ms.

  In addition, the CPU 310 stores a program for controlling each IC, a lottery data used for the internal lottery of a winning combination, various data such as a reel stop position, and a ROM 312 for storing temporary data. A RAM 313 is connected. Other storage means may be used for these ROM 312 and RAM 313, and this point is the same in each control unit described later. The CPU 310 is connected to an input interface 360 for receiving an external signal. The medal acceptance sensor 320, the start lever sensor 321, the stop button sensor 322, and the medal insertion button are connected via the input interface 360 every interrupt time. The state of the sensor 323, the settlement / storage switch 324, and the medal payout sensor 326 is detected, and each sensor is monitored.

  Two medal acceptance sensors 320 are installed in the passage inside the medal insertion slot 134 and detect whether or not a medal has passed. The start lever sensor 321 is installed on the start lever 135 and detects a start operation by the player. The stop button sensor 322 is installed in each of the stop buttons 137 to 139 and detects the operation of the stop button by the player. The medal insertion button sensor 323 is installed in each of the medal insertion buttons 130 and 131, and detects an insertion operation when a medal electronically stored in the RAM 313 is inserted as a game medal. For example, when the medal insertion sensor 323 corresponding to the medal insertion button 130 becomes H level, the CPU 310 electronically inserts one stored medal and the medal insertion sensor 323 corresponding to the medal insertion button 131 is H level. When it becomes, three stored medals are electronically inserted. When the medal insertion button 131 is pressed, two are inserted when the number of stored medals is two, and one is inserted when the number is one. The settlement / storage switch 324 is provided on the settlement / storage button 132. When the settlement / storage switch 132 is pressed once, the stored medals are settled, and when the settlement / storage switch 132 is pressed again, the storage mode in which the medals to be paid out are stored electronically is set. The medal payout sensor 326 is a sensor for detecting a payout medal.

  The CPU 310 further has an input interface 361 and output interfaces 370 and 371 connected to an address bus via an address decoding circuit 350. The CPU 310 exchanges signals with external devices via these interfaces. An index sensor 325 is connected to the input interface 361. The index sensor 325 is installed at a predetermined position on the mounting base of each of the reels 110 to 112, and becomes H level each time the light shielding piece provided on the reel passes through the index sensor 325. When detecting this signal, the CPU 310 determines that the reel has made one rotation, and resets the rotational position information of the reel to zero. The output interface 370 has a reel motor driving unit 330 for driving the reels, and a motor for a hopper (a device for paying out medals accumulated in the bucket from the medal payout outlet 155, not shown). Hopper motor drive unit 331, a game lamp 340 (specifically, a winning line display lamp 120, a start lamp 121, a replay lamp 122, a notification lamp 123, a medal insertion lamp 124, etc.), and a 7-segment display 341 ( A payout number display 125, a game number display 126, a stored number display 127, etc.) are connected.

  A random number generation circuit 317 is connected to the CPU 310 via a data bus. The random number generation circuit 317 is an increment counter capable of incrementing a value within a certain range and outputting the count value to the CPU 310 based on a clock oscillated from the crystal oscillator 311 and the crystal oscillator 316, which will be described later. Used for various lottery processes, including internal lottery for winning positions. The random number generation circuit 317 in the present embodiment includes two random number counters. An output interface 371 for transmitting a command to the sub control unit 400 is connected to the data bus of the CPU 310.

<Sub control unit>
Next, the sub control unit 400 of the slot machine 100 will be described with reference to FIG. The sub-control unit 400 is an arithmetic processing unit that controls the entire sub-control unit 400 based on a main control command or the like transmitted from the main control unit 300, and the CPU 410 transmits and receives signals to and from each IC and each circuit. It has a data bus and an address bus for performing, and has a configuration described below. The clock correction circuit 414 is a circuit that corrects the clock oscillated from the crystal oscillator 411 and supplies the corrected clock to the CPU 410 as a system clock. Further, a timer circuit 415 is connected to the CPU 410 via a bus. The CPU 410 transmits the frequency dividing data stored in the predetermined area of the ROM 412 to the timer circuit 415 via the data bus at a predetermined timing. The timer circuit 415 determines an interrupt time based on the received frequency division data, and transmits an interrupt request to the CPU 410 at each interrupt time. The CPU 410 controls each IC and each circuit based on the interrupt request timing.

  In addition, the CPU 410 temporarily stores a ROM 412 in which commands and data for controlling the entire sub-control unit 400, backlight lighting patterns and data for controlling various displays, and the like are stored. The RAM 413 is connected via each bus. The CPU 410 is connected to an input / output interface 460 for transmitting and receiving external signals. The input / output interface 460 includes a backlight 420 for illuminating the picture of each reel 110 to 112 from the back, a front surface. A door sensor 421 for detecting opening / closing of the door 102 and a reset switch 422 for clearing data in the RAM 413 are connected.

  An input interface 461 for receiving a main control command from the main control unit 300 is connected to the CPU 410 via a data bus, and an effect process that excites the entire game based on the command received via the input interface 461. Etc. are executed. A sound source IC 480 is connected to the data bus and address bus of the CPU 410. The sound source IC 480 controls sound according to a command from the CPU 410. The sound source IC 480 is connected to a ROM 481 that stores sound data. The sound source IC 480 amplifies the sound data acquired from the ROM 481 by the amplifier 482 and outputs the sound data from the speaker 483. The CPU 410 is connected to an address decoding circuit 450 for selecting an external IC, similar to the main control unit 300, and the input interface for receiving a command from the main control unit 300 is connected to the address decoding circuit 450. An input interface 471 for inputting a signal from a liquid crystal display controller (not shown), a clock IC 423, and an output interface 472 for outputting a signal to the 7-segment display 440 are connected.

  The CPU 410 can acquire the current time by connecting the clock IC 423. The 7-segment display 440 is provided inside the slot machine 100 so that a store clerk or the like can check predetermined information set in the sub-control unit 400, for example. Further, a demultiplexer 419 is connected to the output interface 470. The demultiplexer 419 distributes the signal transmitted from the output interface 470 to each display unit and the like. That is, the demultiplexer 419 includes an upper lamp 150, a side lamp 151, a center lamp 152, a waist lamp 153, a lower lamp 154, a reel panel lamp 128, a title panel lamp 170, a saucer lamp 210, according to data received from the CPU 410. The outlet strobe 171 is controlled. The title panel lamp 170 is a lamp that illuminates the title panel 162, and the payout outlet strobe 171 is a strobe type lamp installed inside the payout opening. Note that the CPU 410 performs signal transmission to the liquid crystal display device control unit (not shown) via the demultiplexer 419.

<Pattern arrangement>
FIG. 4 is a diagram in which a pattern arrangement applied to each of the reels 110 to 112 is developed in a planar manner. As shown in the figure, each reel 110 to 112 has a plurality of types of patterns arranged in a predetermined number of frames (21 frames in this case). In the figure, each picture is shown in simplified form with characters, but in actuality, various designs, for example, “bell”, a picture or the like simulating a yellow bell is drawn. In the case of “character”, a picture of an image character of the slot machine 100 is drawn. The numbers 0 to 20 shown at the left end of the figure are numbers indicating the arrangement positions of the patterns on the reels 110 to 112. For example, the number 0 frame on the left reel 110 has a seven pattern, the number 1 frame on the middle reel 111 has a bell pattern, and the number 3 frame on the right reel 112 has a watermelon pattern. .

<Type of winning prize>
The kind of winning combination can be arbitrarily adopted, but the following winning combination is adopted in the present embodiment as shown in FIG. FIG. 5 is a diagram showing the types of winning combinations, the corresponding pattern combinations, the number of medals paid out, the winning probability of internal lottery, and the like.

(1) Bonus ・ Regular Bonus (RB):
This is a winning combination in which a regular bonus game (RB game, also called special game) is started by winning. In this embodiment, a predetermined number (15 in this case) of medals is paid out when winning. In the case of the present embodiment, the corresponding picture combination is “Bar-Bar-Bar”. The RB can perform so-called flag carryover. In other words, even if a game in which the RB has been won internally is not won in the RB, the RB can be in the internal winning state (flag carryover) after the next game until winning. The flag is set in a predetermined area on the RAM 313.

・ Big Bonus (BB):
This is a winning combination in which a big bonus game (BB game) is started by winning. In this embodiment, a predetermined number (15 in this case) of medals is paid out when winning. Corresponding picture combinations are “seven-seven-seven” and “character-character-character” in this embodiment. Flag carryover can also be performed for BB. In other words, even if a game in which BB is internally won does not win BB, it is possible to keep BB being internally won (flag carryover) after the next game until winning. The flag is set in a predetermined area on the RAM 313.

・ Shift Regular Bonus (SRB):
A winning combination that is won only during the BB game (more specifically, during the BB general game), and a special game having the same content as the RB game (hereinafter also referred to as a shift regular bonus game or SRB game) is started by winning. It is a winning role. In this embodiment, a predetermined number (three in this case) of medals is paid out when winning. The corresponding pattern combination is “replay-replay-replay” in the present embodiment.

(2) Small role The game state is not changed by winning a prize, but it is a winning role in which a predetermined number of medals are paid out. In this embodiment, the small role is a watermelon, a bell, or a cherry. The corresponding picture combination, the number of payouts, and the internal winning probability are as shown in FIG. In the case of cherry, it is sufficient that the cherry pattern is displayed on any one reel, and the remaining patterns may be any pattern. In the present embodiment, with respect to the small role, the internal winning probability is the same in the normal game and the BB game (BB general game), so that superiority or inferiority is not given between the normal game and the BB game.
(3) Replay (replay)
It is a winning combination exempted from entering medals in the next game due to winning, and no medals are paid out. In the present embodiment, the corresponding picture combination is “replay-replay-replay” in the normal game, and “replay-replay-bell” in the BB general game. In the BB game (BB general game), multiple types (two types here) of replay lottery data are set, and the probability is higher than that of the RT0 mode (internal winning probability: 133331/16384) and the RT0 mode. There is a low RT1 mode (internal winning probability: 2245/16834).
(4) Bonus A winning combination that is won only during the RB game and the SRB game, and a predetermined number (15 in this case) of medals is paid out by winning. In the case of the present embodiment, the corresponding combination of patterns is “replay-replay-replay”.

  Next, for each winning combination, a winning probability of internal lottery is set for each medal inserted number and for each set value (1 to 6) (FIG. 5 shows a set value 1 to 3 when three medals are inserted). 6 illustrates a set value (N) in FIG. Although the winning probability is shown in the figure, the actual lottery process is as follows. In other words, the range of random values (0 to 16384) acquired at the time of winning combination lottery is divided in advance into several areas (areas corresponding to the size of each winning probability), and each area is won for each winning combination. Mismatch is associated. These pieces of information are stored in the ROM 312 as a winning combination lottery table. In the internal lottery of the winning combination, whether or not the internal winning of the winning combination is determined according to which range the acquired random number value belongs. This method is also adopted in other lottery processes.

<Game state>
In the present embodiment, the game state is roughly divided into a normal game and a bonus game. The bonus game further includes an RB game, an SRB game, and a BB game. In particular, the BB game constitutes a special game in which the player can have more profit than a normal game.
・ RB game, SRB game (special game):
There can be a plurality of types of contents of the game, but in the case of this embodiment, the game is played a predetermined number of times (in this embodiment, 12 times) or the number of times that the game is determined (this implementation) In the embodiment, the game has an end condition that any one of the conditions of winning 8 times is established. The number of times of a game of a prize game and the number of prizes for a prize are managed by a bonus game number counter and a prize prize number counter set in predetermined areas on the RAM 313, respectively.
・ BB game:
Although the content of the BB game can be considered in plural types, in this embodiment, it is possible to win the SRB during the BB game, and when this is won, the SRB game is started. The BB game is referred to as a BB general game in order to distinguish between a case where an SRB game is being played and a case where it is not. Although a plurality of types of BB game end conditions are conceivable, in the present embodiment, the BB game ends when a count value of a BB net increase counter described later exceeds a predetermined value. However, as a condition for ending the BB game, there may be a case where the number of games of the BB general game reaches a predetermined value (for example, 50 times), or the number of SRB winnings is a predetermined value (for example, 3 times). Furthermore, a plurality of such end conditions may be adopted, and the BB game may be ended when any one of the conditions is satisfied.

<Reel stop control>
Next, stop control of the reels 110 to 112 will be described. The reel stop control is performed based on the selected reel stop control table by selecting one of a plurality of predetermined reel stop control tables based on the internal lottery result. The reel stop control table is stored in the ROM 312 of the main control unit 300. In the reel stop control table, the winning combination that was won internally by the internal lottery or the winning combination that is carrying over the flag is allowed to be displayed together with the corresponding picture combination. The pattern combinations corresponding to the winning combination are not displayed together. For example, if the bell is not elected internally, even if a stop operation of the reels 110 to 112 is performed at the timing when the bell picture combination is displayed, the reels 110 to 112 do not stop immediately and the bell picture combination is not immediately stopped. It is controlled not to be aligned. On the other hand, when the bell is internally won, the reels 110 to 112 are immediately stopped within a certain range even if the stop operation of the reels 110 to 112 is not performed at the timing when the bell picture combination is displayed. Without being performed, control is performed so that the combinations of the bell patterns are aligned.

<Adjustment of medal payout>
In the present embodiment, a function of adjusting the payout of medals is employed so that a large number of medals are not paid out within a short period of time. In the present embodiment, a plurality of types of replayable winning conditions during the BB game are set, and the medal payout is adjusted by selecting them according to predetermined conditions. In this embodiment, the internal winning probability of replay is adopted as a replay winning condition. As described above, in this embodiment, two types of RT0 mode and RT1 mode are set as the internal winning probabilities for replay during the BB game. In this embodiment, the predetermined condition for selecting these modes is based on the relational value between the total number of medals inserted and the total number of payouts within a certain period. This relationship value will be described in detail later. If this relation value indicates that the total number of payouts is more than a certain amount than the total number of inputs, select the RT1 mode in which the internal winning probability is stricter (the internal winning probability is low), otherwise Selects the RT0 mode in which the internal winning probability is more gradual (the internal winning probability is high). That is, the RT0 mode is selected in the normal case, and the RT1 mode is selected to suppress the payout of medals.

  By making such a selection, a difference occurs in medals that the player acquires in the BB game, and a large amount of medals are suppressed in a short period of time. That is, when the RT0 mode is selected, it is easy to win a re-game and the number of medals to be inserted is reduced. As a result, the number of medals that the player acquires in the BB game increases, and the RT1 mode is selected. If it is, it is difficult to win a re-game, so the number of medals to be inserted is not particularly reduced, and as a result, the number of medals acquired by the player in the BB game is reduced.

  In this embodiment, replay is adopted as a winning combination for setting a plurality of winning conditions. However, a plurality of winning conditions are set for other winning combinations to suppress the medal payout. You can also. However, since replay is a winning combination exempted from insertion of medals, medals are not paid out even if winning. Therefore, it is less likely that the player loses a sense of inconvenience and the player does not feel uncomfortable if the winning for the replay where the medal is not originally paid out is regulated, rather than the case where the winning for the winning combination where the medal is paid out is regulated. can do.

  In the present embodiment, the internal winning probability is adopted as the replay winning condition. However, the present invention is not limited to this. For example, the above-described reel stop control table selection probability may be adopted. In other words, even if the re-game is won internally, the reel stop control table that does not have the re-game picture combination is selected with a certain probability, and the winning percentage of the re-game is changed by changing the selection probability. You can also. In this embodiment, the internal winning probabilities, which are the winning conditions, are two types (RT0 mode, RT1 mode). However, the present invention is not limited to this, and may be three or more types. Depending on the degree of the relationship value with the total number of payouts, each type may be selected step by step. By doing so, the payout of medals can be adjusted more finely, and the player can be prevented from feeling uncomfortable.

<Basic control of games>
FIG. 7A is a flowchart showing the basic control of the game in the slot machine 100 of the present embodiment. Basic control of the game is performed mainly by the Main CPU 310, and the game process shown in FIG. Hereinafter, this game process will be described. When the power is turned on, first, initial processing is executed in S101. Details of the initial processing will be described later. In S102, processing relating to medal insertion is performed. Here, it is checked whether or not medals have been inserted, and the winning line display lamp 120 is turned on according to the number of medals inserted. It is not necessary to insert a medal when winning the re-game in the previous game.

  In S103, processing related to a game start operation is performed. Here, it is checked whether or not the start lever 135 has been operated. If it is determined that the start operation has been performed, the number of inserted medals is determined, and in the subsequent S104, an effective winning line 114 is determined. In S105, the random number generated by the random number generator 311 is acquired. In S106, an internal lottery of a winning combination is performed using the random number value acquired in S104 and the winning combination lottery table stored in the ROM 312. As a result of the internal lottery, when any winning combination is won internally, the winning combination flag is turned ON. In S107, an effect lottery is performed. Here, processing for selecting an effect pattern such as lighting of a lamp for exciting the game is performed.

  In S108, rotation of all reels 110 to 112 is started. At this time, one reel stop control table is selected with reference to the reel stop control table selection table shown in FIGS. 6 and 7 based on the internal lottery result in S106. In S109, the stop buttons 137 to 139 can be received, and when any one of the stop buttons is pressed, any of the reels 110 to 112 corresponding to the pressed stop button is selected in S108. Stop based on. In S110, a winning determination is performed. Here, it is determined that a winning combination has been won when a picture combination corresponding to an internally winning winning combination or a winning combination with a flag carryover is displayed on the activated winning line 114. For example, if “bell-bell-bell” is arranged on the validated winning line 114, it is determined that the bell is won. In addition, the flag corresponding to the winning combination won is reset. In S111, if any winning combination with payout is won, the number of medals corresponding to the winning combination is paid out.

  In S112, a game state control process is executed. In this gaming state control process, control for changing the gaming state is performed. For example, in the case of BB winning, RB winning or SRB winning, preparation is made so that the BB game, RB game, SRB game can be started from the next time, In the final game, prepare to start the normal game next time. In S113, a payout rate management process is performed. Here, a process for managing each data for calculating a relational value between the total number of medals inserted and the total number of payouts within a certain period is performed. Number of payouts / total inputs). Further, in the present embodiment, the play rate in the nearest 400 games is calculated based on the number of games as the “certain period”. However, it is not always necessary to have 400 games. Further, it is not always necessary to use the number of games as a reference, and time may be used. In addition to the payout rate, a difference value obtained by subtracting the total number of medals from the total number of medals paid out may be employed as the relation value. In S114, RT selection processing is performed. Here, when winning a BB, a process of selecting a type of replay winning condition (RT0 mode or RT1 mode) for a BB game to be executed later is performed according to the payout rate calculated in S113. . As described above, one game is completed, and thereafter, the process proceeds by returning to S102 and repeating the above-described processing.

<Initial processing>
Next, the initial processing of S101 will be described with reference to FIG. The initial process is executed by turning on the power of the slot machine 100. In S201, the cumulative input number data is set to zero. The cumulative insertion number data is data indicating the cumulative number of medals inserted in the nearest 400 games, that is, the total number of insertions. In S202, the cumulative payout number data is set to zero. The cumulative payout number data is data indicating the cumulative value of the payout number of medals in the nearest 400 games, that is, the total payout number. In S203, the payout rate data is set to zero. The payout rate data is data calculated based on the data managed in the above-described payout rate management process (S113), and the payout rate (cumulative payout number data / cumulative input number data) between 400 games is calculated. Show.

  In S204, all the input number history ring buffers are set to zero. This buffer is a buffer for storing the number of medals inserted for each game in the last 400 games. In S205, all the payout number history ring buffers are set to zero. This buffer is a buffer for storing the number of medals paid out for each game in the last 400 games. In S206, the game number counter excluding game number calculation is set to 400. In the present embodiment, when the payout rate is calculated in units of 400 games, since the number of games has not reached 400 games from when the power is turned on until the 400 games are consumed, an accurate payout rate cannot be calculated. Therefore, it is determined whether or not 400 games have been digested based on the count value of the game rate exclusion game number counter, and different processing is performed regarding the calculation of the game rate depending on whether or not 400 games have been reached. Like to do. In S207, other initialization processing is performed, and the initial processing is terminated.

  Next, the above-mentioned “cumulative input number data”, “cumulative payout number data”, “delay rate data”, “input number history ring buffer”, “payout number history ring buffer”, and “excluded rate calculation” Each “game number counter” is stored in a predetermined storage area on the RAM 313. FIG. 6 is a diagram showing a memory map of the storage area. Here, the number-of-insertion history ring buffer and the number-of-payout history ring buffer are divided into 1 to 400 so that each medal insertion number and medal payout number for 400 games can be stored. The data on the number of medals inserted and the number of medals paid out in this game are overwritten with the oldest data. More specifically, in the case of the example shown in the figure, 400 → 399 → 398. . . By cyclically changing the area where the current data is written, such as 2 → 1 → 400, the current data is overwritten with the oldest data. In this way, the number of medals inserted and the number of medals paid out for the nearest 400 games are always stored. The BB net increase counter shown in the figure is a counter for calculating the difference between the total number of medals inserted and the total number of payouts in each BB game. In this embodiment, the count value is a predetermined value. If it exceeds, the BB game will end.

<Game state control processing>
Next, the contents of the gaming state control process of S112 will be described with reference to FIG. In S301, it is determined whether or not the current game is in the BB game (BB general game and SRB game). If the BB game is in progress, the process proceeds to S302; otherwise, the process proceeds to S304. In S302, the BB pure increase counter on the RAM 313 is updated. Here, a value obtained by subtracting the number of medals inserted for the current game from the number of medals paid out for the current game is added to the count value of the BB net increment counter. In other words, when the count value is positive, the player has gained profit in the current BB game, and when the count value is negative, the player has gained profit.

  In S303, it is determined whether or not the count value of the BB net increment counter updated in S302 exceeds a predetermined value (here, 465). If it exceeds, the process proceeds to S314, where the BB game is terminated and a normal game is set. If not, the process proceeds to S304. In S304, it is determined whether or not the RB has been won in this game. If it has won, the process proceeds to S310, and if not, the process proceeds to S305. In S305, it is determined whether or not the SRB has been won in this game. If it has won, the process proceeds to S310, and if not, the process proceeds to S306. In S310, an RB or SRB winning process is performed. Here, processing for starting the RB game or the SRB game is performed. When winning an RB, the maximum value is set in each of the bonus game number counter and the bonus game number counter on the RAM 313, and the game state is shifted from the normal game to the RB game. When the SRB is won, the game number of the BB general game is decremented by one, and the maximum value is set in each of the bonus game number counter and the bonus game number counter on the RAM 313, and the game state is changed to the BB general game. To SRB game.

  In S306, it is determined whether or not the BB is won in this game. If a prize is won, the process proceeds to S311. Otherwise, the process proceeds to S307. In S311, a process for winning a BB is performed. Here, the game state is shifted from the normal game to the BB game, and the BB net increment counter on the RAM 313 is set to zero. In S307, it is determined whether or not the current game is an RB game. If the RB game is in progress, the process proceeds to S312; otherwise, the process proceeds to S308. In S308, it is determined whether or not the current game is in an SRB game. If the SRB game is in progress, the process proceeds to S312; otherwise, the process proceeds to S309. In S312, processing during the RB / SRB game is performed. Here, the following processing is performed. First, in the case of an RB game, one bonus game number counter on the RAM 313 is subtracted, and when a prize is won, one bonus prize counter on the RAM 313 is subtracted. When any of the counters becomes 0, the game state is shifted from the RB game to the normal game. Next, in the case of an SRB game, one bonus game game counter on the RAM 313 is subtracted, and when a prize is won, one bonus game counter on the RAM 313 is subtracted. When any of the counters reaches 0, the gaming state is shifted from the SRB game to the BB general game or the normal game.

  Next, in S309, it is determined whether or not the current game is a BB general game. If it is a BB general game, the process proceeds to S313, and if not, the process ends. In S313, processing in BB is performed. Here, one count value of the BB general game number counter is added. The BB general game number counter is set in a predetermined area on the RAM 313, and is cleared to 0 when the BB game is won or when the BB game ends. In the case of this embodiment, the count value of the BB general game number counter is used, for example, for displaying the current BB general game number.

<Dead rate management process>
Next, the content of the payout rate management process in S113 will be described with reference to FIG. In S401, the cumulative insertion number data on the RAM 313 is updated by adding the insertion number of medals inserted in the current game. In S402, the accumulated payout number data on the RAM 313 is updated by adding the payout number of medals paid out in the current game. In S403, it is determined whether or not the count value of the game number counter excluding game number calculation on the RAM 313 is zero. If it is 0, the process proceeds to S404, and if not, the process proceeds to S407. In S407, one is subtracted from the count value of the game number counter excluding the payout rate calculation. In S404, the oldest input number data (before 400 games) is acquired from the input number history ring buffer on the RAM 313, and the cumulative input number data is updated by subtracting the acquired input number. By this processing, the cumulative value of the number of medals inserted in the nearest 400 games is always accumulated in the cumulative number-of-insertions data. In S405, the oldest (400 games before) payout number data is acquired from the payout number history ring buffer on the RAM 313, and the cumulative payout number data is updated by subtracting the acquired payout number. With this process, the cumulative value of the number of medals inserted in the nearest 400 games is always stored in the cumulative payout number data.

  In S406, the number of medals inserted in the current game and the number of medals paid out in the current game are stored in the inserted number history ring buffer and the paid number history ring buffer on the RAM 313, respectively. Update the data. Thereafter, the process ends.

<RT selection process>
Next, the contents of the RT selection process in S114 will be described with reference to FIG. In S501, it is determined whether or not the current game is a game at the time of BB winning (a game in which the BB game is started from the next game). If the game is a BB winning game, the process proceeds to S502, and if not, the process proceeds to S508. In S508, it is determined whether or not the current game is a game at the end of the BB game. If the BB game is over, the process proceeds to S509 and the RT0 mode is set. If it is not at the end of the BB game, the process ends. In S <b> 502, it is determined whether or not the game play rate calculation exclusion game number counter on the RAM 313 is zero. If it is 0, the process proceeds to S503, and if not, the process proceeds to S504. In S503, a payout rate in the nearest 400 games is calculated and set. The payout rate is calculated by reading the cumulative input number data and the cumulative payout number data from the RAM 313 and calculating (cumulative payout number data / cumulative input number data). In S504, since the number of games has not yet reached 400 games, a predetermined payout rate (here, 1) is set. A payout rate of 1 means that the number of medals inserted and the number of payouts are equal.

  In S505, it is determined whether the payout rate set in S503 or S504 exceeds 2. Note that a payout rate of 2 means that the number of medals paid out is twice the number of inserted medals. When it has exceeded, it progresses to S506, and when that is not right, it progresses to S507. In addition, although 2 is employ | adopted as a threshold value of a payout rate here, it is not restricted to this, A various value is employable. However, in the present embodiment, the threshold of the yield rate of 2 is determined in consideration of the fact that the regulation of the yield rate for the slot machine (for example, 3.3) must not be exceeded. In addition, when the difference between the total payout number of medals and the total input number within a certain period is adopted as the relational value instead of the payout rate, the value of the threshold value “2” in S505 may be changed. In S506, the payout rate exceeds 2, and the total number of medals paid out is much larger than the total number of medals, so the RT1 mode with a more stringent internal winning probability of replay is required to suppress the payout of medals. Select and set.

  On the other hand, in S507, since the payout rate has not reached 2, the payout of medals is not suppressed, and the RT0 mode in which the internal winning probability of replay is more moderate is selected and set. Thereafter, the process ends. In this embodiment, the internal winning probability (RT0 mode, RT1 mode) of the replay of the BB game to be executed after the BB winning is set uniformly. However, in the middle of the BB game, the processing of FIG. By performing the same processing, the internal winning probability of replay may be changed during the BB game. However, as in this embodiment, when the internal winning probability of the replay of the BB game to be executed after the BB winning is set uniformly, the player will not feel uncomfortable even if the medal payout is suppressed. Can do. In other words, if the medal payout is suppressed in the middle of a normal game, depending on the degree, it is easy for the player to realize that the suppression function is working, and it makes the player feel uncomfortable, but at the timing when the game state changes, the medal payout is made. If it is suppressed, it is the timing when the game changes from the beginning, so that the player feels less uncomfortable.

<Example of medal payout adjustment>
It is a figure which shows the simulation result of the payout rate at the time of one BB game digestion by selection with RT0 mode and RT1 mode. The figure assumes that when the BB game starts, the game play rate of the nearest 400 games is about 3.26, and when the BB net increase reaches 465 as the end condition of the BB game. The transition of the payout rate of the nearest 400G between the case where is selected and the case where the RT1 mode is selected is indicated by a broken line. This simulation is performed such that the winning results are the same except for the presence or absence of replay winnings due to the difference between the RT0 mode and the RT1 mode.

  Looking at the transition when the RT0 mode is selected, the BB net increase reaches 465 at the 120th game, and the BB game is over. At this time, the appearance rate for the 400 closest games is just over 3.2. Among the broken lines in the RT0 mode, the broken line portion at the rear end is an expected line of the change in the payout rate assuming that the BB game is started immediately after the end of the BB game and the BB game is started. The payout rate has further increased to 3.3, and the payout rate has become extremely high.

  On the other hand, looking at the transition when the RT1 mode is selected, the BB net increase reaches 465 at the 185th game, and the BB game is over. At this time, the appearance rate of the 400 closest games is less than 2.8. The broken line in the RT1 mode is gradually lowered as shown in the figure, and it can be seen that the medal payout is suppressed. In FIG. 11, a line X indicates the end time of the BB game when the number of BB general games is used as the end condition. In this example, it is assumed that the BB game is finished when the number of games of the BB general game reaches 50 times, and the BB game is finished in a total of 58 games including the number of games at the time of the SRB game. Even in this example, the payout rate of the 400 closest games in the RT1 mode is about 0.1 lower than the payout rate of the 400 close games in the RT0 mode, which shows that the medal payout is suppressed. .

  Further, in FIG. 11, a line X indicates the end time of the BB game when the SRB winning count is used as the end condition. In this example, it is assumed that the BB game is finished when the number of SRB winnings reaches three, and the BB game is finished with a total of 110 games including the number of games during the SRB game. Even in the case of this example, the payout rate of the nearest 400 game in the RT1 mode is about 0.2 lower than the payout rate of the closeest 400 game in the RT0 mode, which shows that the medal payout is suppressed. As described above, in this embodiment, it is understood that the medal payout suppression works regardless of the BB game end condition.

<Other embodiments>
In the above embodiment, the RT0 mode is selected in the normal case, and the RT1 mode is selected in order to suppress the payout of medals. However, if the payout of medals is low in the normal case, the player is rescued. Therefore, the payout condition can be changed to promote the payout of medals.

  For example, when the relation values such as the payout rate and the difference value described above are below a predetermined threshold value, it is possible to select a more gradual winning possible condition. In the example of the above embodiment, when the relation value falls below a predetermined threshold (for example, about 1.1 or about 0.5 in terms of the payout rate), the RT0 mode is selected, and otherwise In normal times, the RT1 mode can be selected. Furthermore, the upper limit value and the lower limit value are set as threshold values for the relationship value, and three types of winning conditions are set. If the relationship value exceeds the upper limit value, the strictest winning condition is selected, and the lower limit value is If it falls below, the mildest possible winning condition is selected, and if it is between the upper limit and the lower limit, the remaining intermediate winning condition can be selected. By doing so, it is possible to prevent the medals from being paid out too much and not too little.

1 is a perspective view of a slot machine 100 according to an embodiment of the present invention. 3 is a block diagram of a main control unit 300 of the slot machine 100. FIG. 3 is a block diagram of a sub control unit 400 of the slot machine 100. FIG. It is the figure which expanded and showed the arrangement | sequence of the pattern given to each reel 110-112. It is the figure which showed the kind of winning combination in each game state, the corresponding picture combination, the number of medals paid out, and the winning probability of internal lottery. It is a figure which shows the memory map of the predetermined storage area on RAM313. (A) is a flowchart showing an example of basic control of a game in the slot machine 100, and (b) is a flowchart showing an example of initial processing of S101. It is a flowchart which shows the example of the game state control process of S112. It is a flowchart which shows the example of the payout rate management process of S113. It is a flowchart which shows the example of RT selection process of S114. It is a figure which shows the simulation result of the payout rate at the time of one BB game digestion by selection with RT0 mode and RT1 mode.

Explanation of symbols

100 slot machine

Claims (2)

A plurality of reels that are subjected to multiple types of designs and are driven to rotate,
A lottery means for determining whether or not an internal winning of a plurality of types of winning combinations is a lottery;
A start switch for starting rotation of the reel;
A stop switch provided for each of the reels, for individually stopping the rotation of the reels;
Reel stop control means for performing stop control of the reel based on at least a lottery result of the lottery means;
A winning determination means for determining a winning based on whether or not the combination of the patterns displayed by the reel at the time of stopping is a predetermined combination of patterns;
With
In a game machine where a game is started on condition that a game medium is inserted, and the game medium is paid out according to a determination result of the winning determination means,
A calculating means for calculating a payout rate calculated by dividing the total payout number of the game medium within a certain period based on the number of games by the total number of inputs;
The winning combination includes a re-gamer who is exempted from inserting the game medium for the next game, and a big bonus in which the gaming state shifts from a normal game to a big bonus game by winning,
As the winning probability of the internal winning of the replay during the big bonus game, two types of a first winning probability and a second winning probability lower than the first winning probability are set,
A selection means for selecting, according to a predetermined condition, the type of the winning probability of the replay to be adopted through the big bonus game to be executed later when winning the big bonus;
The predetermined condition is the payout rate,
The selection means selects the second winning probability when the payout rate exceeds a predetermined threshold value, and selects the first winning probability when the payout rate does not exceed the threshold value. The game table is characterized in that the first winning probability is selected from the time when the power is turned on until the predetermined period of time elapses. Before Stories second winning probability, gaming table according to claim 1, wherein is usually the same as the winning probability of the internal winning about the replay role in the gaming.

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