JP2017189650A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce data capacity by reducing two lottery tables which have been conventionally necessary to one, in a game machine for performing a lottery with a different presentation for each of two states (in a low probability and in a high probability).SOLUTION: A same common lottery table is referred to in two states (in a low probability and in a high probability). In the common lottery table, presentations frequently used in a low probability are set to the upper side, and presentations frequently used in a high probability are set to the lower side. Numerical values of the common lottery table are sequentially added, and a presentation is selected on the basis of the number of times of addition at the time when a predetermined reference value (random number value) is exceeded. In the low probability, processing in an ascending order, that is, a sequential addition from the upper side numerical value is performed, and in the high probability, processing in a descending order, that is, the numerical value is sequential added from the lower side. By reversing a reading order of the table, it is possible to obtain different lottery results in two states while using the same table.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a gaming machine such as a slot machine or a pachinko machine, and more particularly to a gaming machine equipped with an effect device such as a liquid crystal display device.

  2. Description of the Related Art Conventionally, a gaming machine (rotational gaming machine, slot machine) having a plurality of reels having symbols arranged on an outer peripheral surface is known. This type of gaming machine gives a certain game value to a game medium (medal) and performs a game for acquiring such a game medium. Also, this type of gaming machine performs an internal lottery triggered by the player's rotation start operation and starts rotation of a plurality of reels in a mode according to the result of the internal lottery as a player's stop operation trigger. Control is performed to stop a plurality of reels. The game result is determined by the symbol combination displayed on the winning determination line in a state where the plurality of reels are stopped, and medals are paid out according to the game result.

  In the gaming machine, various effects are made to improve the interest of the game. For example, a decorative member, a monitor (screen display device, liquid crystal display device), a speaker, and an LED lamp are attached, and a visual effect, a video effect, a sound effect, a light effect, and the like are performed.

JP, 2005-185814, A When performing a continuous production in which a plurality of productions are performed a plurality of times, it is not necessary to have a series of continuous productions but to have production data for each production. By creating and building up each production for each continuous production, the amount of data can be reduced even if you want to have multiple productions. JP, 2007-252850, A Using the number search data table, the number corresponding to each production number memorized in the production data table is used using the relation between the number search data table and the production data table. Corresponding to the set number when the effect lottery random number value for selecting the effect number corresponding to the effect output using the notification means is included in the range expressed using the acquired set number The amount of data was reduced by selecting the production number to be selected. JP, 2007-319299, AA plurality of sound effects are associated with the same video effect. Thereby, it is possible to prepare a plurality of effects with different voices even on one effect screen, and the data capacity can be reduced.

  Although details will be described later, a gaming machine such as a slot machine includes a main board including an internal lottery means for performing a predetermined lottery process, a sub board that receives a command from the main board and executes a process related to the presentation, and a sub board. And a device control board for controlling a device for producing an effect such as a liquid crystal display device.

  The sub-board selects an effect corresponding to the lottery result by the internal lottery means of the main board. That is, a lottery result (winning combination) is received from the main board, and one of a plurality of effects corresponding to the lottery is selected by lottery.

  A conventional lottery process on the sub-board will be described with reference to FIGS. In addition, since the same code | symbol as FIG.6, FIG.7 and FIG.11 is attached | subjected about what is common among each element shown by these figures, please also refer to those description.

  2001 is a lottery table. In a lottery related to the performance of a gaming machine, a plurality of operation states (for example, a low probability state with a relatively low winning probability in a so-called AT lottery (low probability) and a high probability state with a relatively high winning probability in an AT lottery) Since the different lotteries are performed for each (highly accurate time)), the conventional gaming machine has a plurality of lottery tables corresponding to a plurality of states. In the example of FIG. 14, two lottery tables, that is, a first lottery table 2001-1 and a second lottery table 2001-2 are provided.

  An example of the contents of the first lottery table 2001-1 is shown in FIG. 16A, and an example of the contents of the second lottery table 2001-2 is shown in FIG.

  A plurality of numerical values stored in order in the first lottery table 2001-1 will be expressed as an array p (i). When n is 8, i = 1, 2,..., 8, p (1) = 300, p (2) = 100,..., p (8) = 50. Production 1, production 2,..., production 8 are associated with p (1), p (2),.

  A plurality of numerical values stored in order in the second lottery table 2001-2 will be expressed as an array q (i). When n is 8, i = 1, 2,..., 8, and q (1) = 50, q (2) = 50,. Production 1, production 2,..., production 8 are associated with q (1), q (2),.

  As can be understood from FIG. 16, the first lottery table 2001-1 and the second lottery table 2001-2 have the same numerical values, but their order is upside down.

  Reference numeral 2002 denotes a lottery table selection unit that selects one of the first lottery table 2001-1 and the second lottery table 2001-2 according to the state of operation. By this selection, the selection probability (effect frequency) selected in the lottery can be changed. In the example of FIG. 16A, the selection probabilities of effects 1 to 4 are high, and in the example of FIG. 16B, the selection probabilities of effects 5 to 6 are high.

  It supplements about the numerical value and selection probability of FIG. Since the numerical value corresponds to “weight”, selection is made such that an effect corresponding to the numerical value is selected as the numerical value is higher on the assumption that the random number values generated by the random number generation unit 2003a are uniformly distributed. Probability increases. In other words, in the process of FIG. 15, the larger the numerical value of FIG. 16, the higher the probability that the accumulated value is equal to or greater than the threshold value (accumulated value ≧ threshold value) in S104. Assuming that random numbers are uniformly generated between 1 and 1000, if the numerical value of production 1 is 993 and all the others are 1, the selection probability of production 1 is 993/1000, and the others are all 1/1000. It becomes 1000 (if the random number value is any one of 1 to 993, the production 1 is selected). Thus, by appropriately adjusting the numerical value of a specific effect, the selection probability of the effect can be set to a desired value.

  Reference numeral 2003 denotes a lottery processing unit that performs a lottery based on the lottery table selected by the lottery table selecting unit 2002. The lottery processing unit 2003 includes a random number generation unit 2003a that generates random numbers. The random number generator 2003a is a counter realized by, for example, hardware or software. In the following description, it is assumed that the random number generation unit 2003a generates an integer in the range of 0 to 1000, and any one integer is randomly acquired at a predetermined timing and treated as a random number (random value).

  With reference to the flowchart of FIG. 15, a description will be given of a lottery process of effects in a conventional gaming machine.

S100: The lottery table selection unit 2002 selects either the first lottery table 2001-1 or the second lottery table 2001-2.
As described above, the numerical values of the first lottery table 2001-1 are p (1),..., P (8), and the numerical values of the second lottery table 2001-2 are q (1),. q (8). Here, the output of the lottery table selection unit 2002 is expressed as a (1),..., A (8).

S101: The random number generation unit 2003a acquires a random value. This is set as a threshold for determination to be used in S104.
For example, assume that the acquired random number value is 550, and this is set as a threshold value.

S102: The lottery processing unit 2003 acquires a numerical value a (1) that is a value corresponding to i at the head of the lottery table selected by the lottery table selecting unit 2002.

S103: The lottery processing unit 2003 sets the cumulative value = a (1) as an initial value. Further, the parameter i for obtaining the cumulative value is set to 1.

S104: The lottery processing unit 2003 compares the accumulated value with a threshold value.
When the accumulated value is equal to or greater than the threshold value, S107 is executed. When the accumulated value is smaller than the threshold value, S105 and S106 are executed.

S105: The lottery processing unit 2003 increases the parameter i by 1, and obtains a numerical value a (i) that is a value corresponding to the value of i after the parameter i is increased.

S106: The lottery processing unit 2003 adds the numerical value a (i) acquired in S105 to the accumulated value, and sets this result as a new accumulated value. Then, the process returns to S104.

S107: The lottery processing unit 2003 selects an effect associated with the numerical value (a (i) acquired in S105) when the accumulated value is equal to or greater than the threshold value.

  Through S104 to S106, the lottery processing unit 2003 sequentially adds the numerical values set in the lottery table 2001 from the top, and when the reference threshold value or more is reached, the effect associated with the numerical value at that time Will be selected.

  For example, assuming that the reference numerical value is 550, the number of times of addition is three (i = 3, a (3) = when the first lottery table 2001-1 in FIG. At p (3) = 300), the cumulative value becomes 700, which is the threshold value of 550 or more. Therefore, “effect 3” associated with the numerical value at that time is selected (FIG. 16A).

  In addition, when the second lottery table 2001-2 of FIG. 16B is selected with high accuracy, the added number is 6 times (i = 6, a (6) = q (6) = 300) and the accumulated value. Becomes 600 and becomes the threshold value of 550 or more. Therefore, “effect 6” associated with the numerical value at that time is selected (FIG. 16B).

  As described above, in the conventional gaming machine, it is possible to obtain different lottery results for a plurality of operation states of low probability time and high probability time.

  However, in the conventional gaming machine, it is necessary to prepare a lottery table for each of a plurality of operation states as shown in FIGS. For this reason, there is a problem that a plurality of lottery tables are required, the data capacity is increased, and a lot of memory is consumed.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a gaming machine that can obtain different lottery results for each of a plurality of operation states without increasing the amount of memory used.

The present invention includes a main board including an internal lottery means for performing a predetermined lottery process, a sub board for selecting and executing one of a plurality of effects determined in advance based on a command from the main board, and the sub board In a gaming machine comprising a device control board for controlling a device for performing the presentation based on data from
The sub-board operates such that the selection probability when selecting any one of the plurality of effects is different between the first state and the second state,
A common lottery table in which a plurality of predetermined numerical values are stored in order (hereinafter, the plurality of numerical values stored in order are referred to as “array a (i)”, where n is 2 or more. As an integer, i = 1,..., N),
A random number generator for generating a random number, sequentially reading the array a (i) of the common lottery table in either ascending or descending order of i, performing a predetermined calculation based on the read numerical value, A lottery processing unit that compares the random number value acquired from the random number generation unit and selects any of the plurality of effects based on the comparison result;
When the operation state of the sub-board changes from one of the first state or the second state to the other, the reading order of the array a (i) of the common lottery table is changed from i ascending order to descending order. Alternatively, an access order reversing unit that reverses from descending order to ascending order is provided.

  The predetermined calculation of the lottery processing unit is to obtain a cumulative value of the read numerical values, and the lottery processing unit has a cumulative value of the read numerical values equal to or greater than a random value acquired from the random number generation unit. The effect previously associated with the number of times of addition is selected.

The contents of the common lottery table are determined so that the cumulative value of i = 1,..., N in the array a (i) matches the range of random numbers generated by the random number generator.
For the same i, the content of the common lottery table is determined so that the cumulative value in the ascending order and the cumulative value in the descending order of the array a (i) are different,
Among the plurality of effects, an effect whose selection probability should be high in the first state is associated with one side of the array a (i), and an effect whose selection probability should be high in the second state Is associated with the other side of the array a (i).

  According to the present invention, in a gaming machine that performs lottery of effects using a lottery table, when the state of operation changes from one of the first state or the second state to the other, the common lottery table array a (i ) With an access order inversion unit that reverses the reading order of i from ascending order to descending order or from descending order to ascending order, so that different lottery results can be obtained according to the state of operation while referring to the same common lottery table. Can do.

It is a front view of the slot machine which shows the state which closed the front door. It is a front view of the slot machine which shows the state which opened the front door 180 degree | times. It is a block diagram of a slot machine. It is a flowchart of the gaming process of the slot machine. It is explanatory drawing of the communication system of a sub board | substrate and a peripheral board | substrate. It is a block diagram of the sub board | substrate of the game machine which concerns on embodiment of invention. It is explanatory drawing of the common lottery table which concerns on embodiment of invention. It is explanatory drawing of the numerical value of the common lottery table which concerns on embodiment of invention. It is other explanatory drawing of the numerical value of the common lottery table which concerns on embodiment of invention. It is explanatory drawing of the production | presentation selection table which concerns on embodiment of invention. It is a flowchart of the effect lottery process which concerns on embodiment of invention. It is another block diagram of the sub board | substrate of the game machine which concerns on embodiment of invention. It is another flowchart of the effect lottery process which concerns on embodiment of invention. It is a block diagram of the sub board | substrate of the conventional game machine. It is a flowchart of the effect lottery process of the conventional sub board | substrate. It is explanatory drawing of the conventional lottery table.

  FIG. 1 is a front view of the slot machine with the front door closed, and FIG. 2 is a front view of the slot machine with the front door opened 180 degrees.

  1 and 2, reference numeral 100 denotes a slot machine. As shown in FIG. 1, the slot machine 100 can be opened and closed by a hinge or the like on the slot machine main body 120 and one side of the front surface of the slot machine main body 120. And a front door 130 attached thereto. As shown in FIG. 1, a game display unit 131 is provided substantially in the center of the front door 130, and a medal insertion slot 132 for a player to insert medals is provided at the lower right corner of the game display unit 131. Provided below the medal insertion slot 132 is a reject button 133 for forcibly discharging a clogged medal inserted from the medal insertion slot 132 to the outside of the slot machine 100.

  A start switch 134 for starting a game is provided at the lower left of the game display unit 131, and three stop buttons 140 are provided corresponding to the three spinning cylinders. At the center of the lower end of the front door 130, a medal payout port 135 is provided. A liquid crystal display device LCD is provided above the game display unit 131.

  As shown in FIG. 2, the slot machine main body 120 is fixed to the inner bottom surface, stores a plurality of medals therein, and stores the stored medals at a payout port 135 provided on the front surface of the front door 130. A hopper device 121 for paying out the sheets one by one is installed. An upper portion of the hopper device 121 is provided with a hopper tank 122 that opens upward and stores a plurality of medals therein. Inside the slot machine main body 120, a reel (rotating cylinder) unit 203 including three rotating cylinders is installed at a position where the game display unit 131 comes when the front door 130 is closed. The reel unit 203 includes three spinning cylinders (first to third drums) in which a plurality of types of symbols are arranged on the outer peripheral surface. The game display unit 131 is provided with an opening through which the player can see the symbols of the rotating drums of the reel unit 203. A power supply unit 205 is provided on the left side of the hopper device 121.

  As shown in FIG. 2, the medal (coin) selector 1 is attached to the back side of the front door 130 on the back side of the medal slot 132 provided on the front surface of the front door 130. This medal selector 1 rolls the medal toward the hopper device 121 while detecting the passage of the medal inserted from the medal insertion slot 132, and has a different diameter medal or iron or iron whose outer diameter is different from the predetermined dimension. This is an apparatus for selecting and removing illegal medals made of an alloy and selecting and eliminating a predetermined number or more of medals that can be inserted per game.

  Further, as shown in FIG. 2, a lead-out path 136 that covers the lower side and communicates with the payout port 135 of the front door 130 is provided below the medal selector 1. The medals distributed by the medal selector 1 are returned to the player from the payout port 135 via the derivation path 136.

FIG. 3 shows a functional block diagram of the slot machine 100 according to the embodiment of the invention.
In this figure, the display about the power supply system is omitted. The slot machine includes a power supply unit 205 for generating a DC power supply (+ 5V or the like) from a commercial power supply (AC100V).

  The slot machine 100 includes a main substrate (processing unit) 10 and a sub substrate 20 that operates in response to a command from the main substrate (processing unit) 10 as main processing devices. At least the main substrate 10 is accommodated inside the case so that it cannot be contacted from the outside, and is sealed so that traces remain when these substrates are removed.

  The main board 10 is for performing an internal lottery in response to a player's operation, and performing processing (game processing) such as reel rotation / stop and medal payout. The main board 10 includes a CPU that performs a control operation according to a preset program, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like.

  The sub board 20 is for receiving a command signal from the main board 10 and notifying the result of the internal lottery and performing various effects. The sub-board 20 includes a CPU that performs a control operation in accordance with a preset program corresponding to the command signal, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like. Only one command flows from the main board 10 to the sub board 20, and conversely, no command is issued from the sub board 20 to the main board 10.

  The main board 10 is paid out from a bet switch BET, a start switch 134, a stop button 140, a reel unit (including a reel driving device) 203, a reel position detection circuit 71, a hopper driving unit 80, a hopper 81 and a hopper 81. A medal detection unit 82 for counting the number of medals (these constitute the hopper device 121 described above) is connected. A peripheral substrate (device control substrate) such as a liquid crystal control substrate 200 for controlling the liquid crystal display device, a speaker substrate 201, and an LED substrate 202 is connected to the sub substrate 20. The peripheral board is controlled by the sub-board 20 and produces effects mainly by video, light, and sound. In the following description, for the sake of convenience, the liquid crystal control substrate 200 and other peripheral substrates will be described separately.

  Further, medal sensors S1 and S2 of the medal selector 1 are connected to the main board 10.

  The medal selector 1 is provided with medal sensors S1 and S2 for counting medals. The medal sensors S1 and S2 are provided on the downstream side (near the exit) of a medal passage (not shown) provided in the medal selector 1 (the upstream side of the medal passage communicates with the medal slot 132). The two medal sensors S1 and S2 are arranged side by side at a predetermined interval along the medal traveling direction. The medal sensors S1 and S2 are, for example, photointerrupters that have a light emitting portion and a light receiving portion that face each other, are formed in a U-shaped cross section, and are positioned so that the detection optical axis faces the medal passage from above. . Each photo interrupter detects the passage of a medal sent without being blocked on the way. The reason why two photo interrupters are adjacent is not only to detect the number of medals but also to monitor whether or not the passage of medals is normal. That is, by providing two photo interrupters adjacent to each other, it is possible to detect the passing speed and passing direction of medals, thereby detecting not only the number of medals but also an illegal act moving in the reverse direction.

  The hopper driving unit 80 rotates the hopper 81 and performs an operation of paying out medals of the payout number instructed by the main board 10. The gaming machine includes a medal detection unit 82 that operates every time a medal is paid out, and the main board 10 receives a medal actually paid out from the hopper 81 based on an input signal from the medal detection unit 82. You can manage the number.

  The insertion accepting unit 1050 receives the outputs of the medal sensors S1 and S2 of the medal selector 1, accepts the insertion of medals for each game, and determines that the medal corresponding to the specified number of insertions has been inserted. A process of permitting the rotation start operation of the first reel to the third reel is performed. Note that the pressing operation of the start switch 134 is an opportunity to start rotation of the first reel to the third reel and an opportunity to execute the internal lottery. Also, a prescribed number of throws is set according to the gaming state, the prescribed number of throws is set to 3 in the normal state and the bonus established state, and the prescribed number of throws is set to 1 in the bonus state.

  When medals are inserted, the inserted medals are set to the inserted state up to a specified number of insertions according to the gaming state. Alternatively, when the bet switch BET is pressed in a state where medals have been credited to the gaming machine, the credited medals are set to the inserted state by limiting the prescribed number of insertions according to the gaming state. The main board 10 controls whether or not to accept a medal. When it is not in a state of accepting insertion of medals (when not permitted), even if medals are inserted, they are not counted by the medal sensors S1 and S2 and are returned as they are. Similarly, the main board 10 controls the validity / invalidity of the bet switch BET. When the bet switch BET is not valid (when not permitted), even if the bet switch BET is pressed, it is ignored.

  The main board 10 incorporates random number generating means 1100. The random number generation means 1100 is a means for generating a random number for lottery. The random value can be generated based on, for example, a count value of an increment counter (a counter that counts numerical values so as to circulate a predetermined count range). In this embodiment, the “random number value” is not only a value that is randomly generated in a mathematical sense, but even if the generation itself is regular, the acquisition timing and the like are irregular. Includes a value that can function as a random number.

  The internal lottery means 1200 performs an internal lottery in which the player determines whether or not the winning combination is based on a start signal from the start switch 134. That is, a lottery table selection process for selecting a lottery table stored in a memory (not shown) of the main board 10, a random number determination process for determining the winning of a random number obtained from the random number generation means 1100, and the winning determination result For example, a lottery flag setting process for setting a flag to that effect is performed (see FIG. 6 and its description).

  In the lottery table selection process, it is determined which lottery table is used for the internal lottery among a plurality of lottery tables stored in a storage means (ROM) (not shown). In the lottery table, for each of a plurality of random values (for example, 65536 random values from 0 to 65535), replay, small role (bell, cherry), regular bonus (RB: bonus), and big bonus (BB :), etc., are associated with each other. In addition, a normal state, a bonus establishment state, and a bonus state can be set as the gaming state, and a replay lottery state, a replay low probability state, and a replay high probability state can be set as replay lottery states.

  A set value is used to select which of a plurality of lottery tables. The set value is any one of 1 to 6, for example, and any one of six lottery tables stored in advance in the ROM of the main board 10 is selected corresponding to this numerical value.

  The set value can be set by opening the door of the gaming machine, turning on the setting key switch provided in the power supply unit 205, turning the power switch from off to on, and then entering the mode in which the setting can be changed, and then pressing the setting change switch. The predetermined operation procedure is set. The set value is stored in the main board 10.

  In the random number determination process, based on the start signal from the start switch 134, a random value (lottery random number) is obtained from the random number generating means 1100 for each game, and the obtained random number value is won by referring to the lottery table. Determine whether or not.

  In the lottery flag setting process, the lottery flag of the winning combination determined to be won based on the result of the random number determination process is changed from the non-winning state (first flag state, off state) to the winning state (second flag state, on Status). When two or more types of winning combinations are won, a lottery flag corresponding to each of the two or more types of winning winning combinations is set to the winning state. The lottery flag setting information is stored in storage means (RAM).

  A lottery flag (possible carryover flag) that can carry over the winning state for the next game until winning, and a lottery flag that is reset to the non-winning state without bringing the winning state to the next game regardless of winning Carry-over impossible flag) may be provided. In this case, there are a regular bonus (RB) and a big bonus (BB) as a combination to which the former carry-over possible flag is associated, and other combinations (for example, small role, replay) correspond to the latter carry-over impossible flag. It is attached. In other words, in the lottery flag setting process, if a regular bonus is won by internal lottery, the winning state of the regular bonus lottery flag is carried over until the regular bonus is won, and if the big bonus is won by internal lottery, the big bonus lottery A process of carrying over the winning state of the flag until the big bonus is won is performed. At this time, the main board 10 determines whether or not a role other than the regular bonus and the big bonus (small role and replay) is used even in a game in which the winning state of the regular bonus or big bonus lottery flag is carried over by the internal lottery function. An internal lottery is performed. In other words, in the lottery flag setting process, in a game in which the winning state of the regular bonus lottery flag is carried over, if a small role or replay is won in the internal lottery, the regular bonus lottery flag and the internal lottery already won In a game in which the lottery flags corresponding to two or more types of winning combinations or replay lottery flags won in the win state are set to the winning state and the winning state of the big bonus lottery flag is carried over, it is small in the internal lottery When a winning combination or replay is won, a lottery flag corresponding to two or more kinds of winning combinations including a big bonus lottery flag that has already been won and a small bonus or replay lottery flag that has been won in an internal lottery is set to a winning state. Set.

  When the replay is won, the replay processing means 1600 performs a replay process (regame process) for setting the same preparatory state as the previous game without requiring insertion of medals owned by the player for the next game. When a replay wins, an automatic insertion process is performed in which the same number of medals as the previous game is automatically set to the insertion state without using the player's own medals (including credit medals). The game machine is set in a state of waiting for a rotation start operation (pressing operation of the start switch 134 by the player) in the next game in a state where the same winning determination line as the previous game is validated.

  The replay processing unit 1600 may perform control to change the winning probability of replay in the internal lottery under a predetermined condition. The replay lottery states include a replay no lottery state in which replay is excluded from the internal lottery, a replay low probability state in which the replay winning probability is set to about 1 / 7.3, and a replay winning probability of about 1 / A plurality of lottery states such as a high replay probability state set to 6 can be set. By changing the replay lottery state, the winning probability of the replay in the internal lottery is changed.

  The reel control means 1300 rotates the first to third reels by a stepping motor based on a start signal generated by the player pressing the start switch 134 (rotation start operation), and the first to third reels are driven. Control that permits the pressing operation (stop operation) of the three stop buttons 140 respectively corresponding to the rotating reels in a state in which the rotation speed of the motor reaches a predetermined speed (about 80 rpm: a rotation speed of about 80 rotations per minute). And a control to stop the first reel to the third reel, which are rotationally driven by the stepping motor, according to the lottery flag setting state (result of the internal lottery).

  In addition, the reel control means 1300 receives the reel stop signal when the player presses the three stop buttons 140 in a state where the pressing operation (stop operation) with respect to the three stop buttons 140 is permitted (validated). Based on this, by stopping the supply of drive pulses (motor drive signals) to the stepping motor of the reel unit 203, control is performed to stop each of the first to third reels.

  That is, each time the three stop buttons 140 are pressed, the reel control means 1300 determines the reel stop position corresponding to the pressed button among the first to third reels. The reel is stopped at the stop position. Specifically, referring to a stop control table (not shown) stored in the storage means (ROM), the first according to the pressing timing, pressing order, etc. of the three stop buttons 140 (mode of stop operation). A stop position of the reels to the third reel is determined, and control is performed to stop the first reel to the third reel at the determined stop position.

  Here, in the stop control table, the position of the first reel to the third reel (press detection position) at the time when the stop button 140 is operated and the actual stop position (or the slip from the press detection position) of the first reel to the third reel. (Number of frames) is set. Depending on the setting state of the lottery flag, a stop control table for determining the stop positions of the first reel to the third reel may be prepared.

  In the gaming machine, the reel unit 203 includes a reel index (not shown) made of a photosensor, and the reel control means 1300 is based on a reference position signal detected by the reel index every time the reel rotates once. By determining the rotation angle (the number of rotation steps of the rotation axis of the step motor) from the reel reference position (the frame detected by the reel index), the current rotation state of the reel can be monitored. . That is, the main board 10 can obtain the position of the reel when the stop button 140 is operated by determining the rotation angle from the reference position of the reel.

  The reel control means 1300 performs so-called pull-in processing and kick-out processing as control for stopping the reel. The pull-in process is a control process for stopping the reel so that the symbol corresponding to the combination whose lottery flag is set to the winning state is stopped on the winning determination line (so that the winning combination can be won). It is. On the other hand, the kicking process means that the reel corresponding to the combination for which the lottery flag is set to the non-winning state does not stop on the valid winning determination line (so that the non-winning combination cannot be won) This is a control process to be stopped. That is, in the gaming machine of the present embodiment, the lottery flag setting state, the stop button 140 pressing timing, the pressing order, and the stop position of the reels that have already stopped (types of display symbols) in order to realize the pull-in processing and kicking processing. ) Etc., the stop control table is set so that the stop position of each reel changes. In this way, the main board 10 can stop the symbol of the combination for which the lottery flag is set to the winning state in a winning form, while the symbol of the combination for which the lottery flag is set to the non-winning state is in the winning form. Control is performed to stop the first reel to the third reel so as not to stop.

  In the gaming machine of the present embodiment, the first reel to the third reel are set to a control state in which the rotating reel corresponding to the pressed stop button 140 is stopped within 190 ms from the time when the stop button 140 is pressed. Has been. That is, in the stop control table for determining the stop position of each rotating reel, the number of frames required from when the stop button 140 is pressed until each reel stops is in the range of 0 to 4 frames (predetermined pull-in range). Is set in

  The winning determination means 1400 performs a process of determining whether or not a winning combination has been won based on the stop mode of the first reel to the third reel. Specifically, referring to the winning determination table stored in the storage means (ROM), the symbol combination displayed on the winning determination line when all of the first reel to the third reel are stopped, It is determined whether or not it is a predetermined winning combination.

  The winning determination means 1400 executes a winning process based on the determination result. As a process at the time of winning a prize, for example, when a small role wins, the hopper 81 is driven to perform a medal payout control process, or a credit is increased (a predetermined maximum number is increased to 50, for example, When the replay is won, a replay process is performed. When a big bonus or a regular bonus is won, a game state transition control process for shifting the game state is performed.

  The payout control means 1500 performs payout control processing relating to the payout of medals according to the game result. Specifically, when a small combination wins, the number of medals to be paid out in the game is determined based on a payout predetermined for each combination, and the medals corresponding to the determined number of payouts are determined by the hopper driving unit 80. Then, the hopper 81 is driven to pay out. At this time, a current flows through a motor (not shown) built in the hopper 81.

  When medal credits (internal storage) are permitted, instead of actually paying out medals by the hopper 81, the number of credits stored in a credit storage area (not shown) of the storage means (RAM) (not shown) A credit addition process for adding the number of payouts to the number of credited medals is performed to virtually pay out medals.

  Further, the main board 10 may perform control to shift the gaming state between the normal state, the bonus establishment state, and the bonus state (gaming state transition control function). As the game condition transition condition, one condition may be defined, or a plurality of conditions may be defined. When a plurality of conditions are established, transitioning the gaming state to another gaming state based on the fact that one of the plurality of conditions is satisfied or all of the plurality of conditions are satisfied Can do.

  The normal state is a game state corresponding to the initial state among a plurality of types of game states, and a transition from the normal state to the bonus establishment state is possible. The bonus establishment state is a gaming state that shifts when a big bonus or a regular bonus is won in the internal lottery. In the bonus establishment state, when the big bonus is won in the internal lottery in the normal state, the lottery flag corresponding to the big bonus is maintained in the winning state until the big bonus is won, and the regular bonus is won in the internal lottery in the normal state Until the regular bonus is won, the lottery flag corresponding to the regular bonus is maintained in the winning state. In the bonus state, it is determined whether or not the end condition is satisfied based on the total number of medals paid out by the bonus game, and medals exceeding a predetermined payout limit number are paid out according to the type of bonus won. The bonus state is terminated and the gaming state is returned to the normal state.

  The reel unit 203 includes three reels (not shown), and one stepping motor is attached to each of the three reels. A stepping motor includes a gear-shaped iron core or permanent magnet as a rotor (rotor), a plurality of windings (coils) as a stator (stator), and is rotated by switching windings through which current flows. is there. That is, a current is passed through the windings of the stator to generate a magnetic force, and the rotor is rotated by attracting the rotor. Since the rotation axis can be stopped at a specified angle, it is used to drive the rotation of the reel of the slot machine. A plurality of windings constitute one phase. As the number of phases, for example, there are two (two phases), four (four phases), and five (five phases).

Next, game processing in the gaming machine will be described with reference to FIG.
Generally, in a gaming machine, one game is started from the insertion of medals (insertion of credits) until the end of payout (or until the increase in the number of credits is completed). There is a rule that it is not possible to proceed to the next game until one game is finished.

  First, when a prescribed number of medals are inserted, the start switch 134 is activated, and the processing of FIG. 4 is started.

  In step S1, the start switch 134 is turned on by operating the start switch 134. Then, the process proceeds to the next step S2.

  In step S2, a lottery process is performed by the main board 10. Then, the process proceeds to the next step S3.

  In step S3, the rotation of the first reel to the third reel starts. Then, the process proceeds to next Step S4.

  In step S4, when the stop button 140 is operated, the stop button 140 is turned ON. Then, the process proceeds to next Step S5.

  In step S5, rotation stop processing is performed on the reel corresponding to the pressed stop button 140 among the first to third reels. Then, the process proceeds to next Step S6.

  In step S6, it is determined whether or not the operation of the stop button 140 corresponding to the three reels has been performed. If it is determined that all three stop buttons 140 corresponding to the three reels have been operated, the process proceeds to the next step S7.

  In step S7, it is determined whether or not the winning symbols corresponding to the lottery flag are aligned on the effective winning line while the lottery flag is established, that is, whether or not the winning is confirmed. If it is determined that the winning is confirmed, the process proceeds to the next step S8. If the winning is not confirmed, no medals are paid out even if the lottery flag is established.

  In step S8, medals corresponding to winning symbols are paid out.

  The process from the insertion of the medal to the completion of the execution of step S8 is one game. When the standby process in step S8 ends, the process returns to the beginning of the flowchart. In other words, the next game is possible (transition to the next game).

  FIG. 5 is an explanatory diagram of the connection between the sub-board 20 and its peripheral board (device control board). As shown in FIG. 3, a liquid crystal control board 200, a speaker board 201, and an LED board 202 are connected to the sub board 20. These should be called peripheral substrates of the sub-substrate 20.

  The plurality of peripheral substrates are connected as shown in FIG. That is, a plurality of peripheral boards are connected to a common bus, and communicate with the sub board 20 through the bus. The signal flowing through the bus is a signal on two lines, a data line and a clock line, such as a parallel signal (for example, a signal transmitted by an 8-bit line) or a serial signal (for example, I2C (Inter-Integrated Circuit)). ). In the example of FIG. 5, the signal output from the sub-board 20 is returned to the sub-board 20, but this is an example, and the end opposite to the connection end is opened as in a general bus structure. Also good.

  Data is transmitted from the sub board 20 to the peripheral board by designating an address. For example, when data is sent to the liquid crystal control board 200 as a peripheral board, an address previously associated with the liquid crystal control board 200 is designated and the data is sent to the bus. When the liquid crystal control board 200 recognizes that the data is addressed to itself by the address, the liquid crystal control board 200 takes in the data following the address into the latch. A predetermined operation is performed according to the fetched data. If the fetched data is a command for transmitting data acquired or obtainable by the liquid crystal control board 200 to the sub-board 20, the data is sent to the sub-board 20 (after receiving predetermined data, it is determined in advance. Data can always be transmitted to the sub-board 20).

  FIG. 6 is a block diagram of the sub-board 20 of the gaming machine according to the embodiment of the invention. Only parts necessary for explaining the operation of the embodiment of the present invention are shown, and other elements are omitted.

  2004 is a common lottery table. The common lottery table 2004 includes a plurality of operation states described above (for example, a low-probability state where the winning probability in the so-called AT lottery is relatively low (low probability) and a high-probability state where the winning probability in the AT lottery is relatively high ( Even when different lotteries are performed in the case of high accuracy)), it can be used for any of lotteries related to a plurality of states. A plurality of numerical values stored in order in the common lottery table 2004 are denoted as “array a (i)”. However, when n is an integer of 2 or more, i = 1,..., N. The contents of the common lottery table 2004 will be described later.

  Reference numeral 2003 denotes a lottery processing unit that performs lottery based on the common lottery table 2004. For example, the lottery processing unit 2003 randomly selects any of the eight types of effects 1 to 8 (this process will be described later). The lottery processing unit 2003 includes a random number generation unit 2003a that generates random numbers and an effect selection table 2003b. The random number generator 2003a is a counter realized by, for example, hardware or software. For example, the random number generation unit 2003a generates an integer in the range of 0 to 1000, and any one integer is randomly acquired at a predetermined timing, and this is treated as a random number (random number value). The effect selection table 2003b is a table for selecting a corresponding effect based on a numerical value (number of additions described later) as a lottery result. The effect selection table 2003b is used in S21 of FIGS. An example is shown in FIG. In FIG. 10A, effects 1 to 8 are associated in ascending order of the number of additions, and in FIG. 10B, effects 8 to 1 are associated in descending order of the number of additions.

  2005 indicates an arrangement a () of the common lottery table 2004 when a plurality of operation states change, that is, when one of the low probability (first state) and the high probability (second state) changes from one to the other. It is an access order inversion unit that reverses the reading order of i) from ascending order to descending order or from descending order to ascending order. The access order reversing unit 2005 can obtain different lottery results for a plurality of operation states of low probability and high probability in the gaming machine according to the embodiment of the present invention, while using one lottery table.

  According to the configuration of FIG. 6, since the access order reversing unit 2005 is provided outside the lottery processing unit 2003, the same lottery processing unit 2003 of FIG. 14 is used as the lottery processing unit 2003 of FIG. be able to. Therefore, it is expected that the configuration of FIG. 6 can be realized relatively easily.

  An example of the contents of the common lottery table 2004 is shown in FIGS.

  In the example of FIG. 7 related to a plurality of numerical value arrays a (i) stored in order in the common lottery table 2004, the number n of numerical values is 8, and i = 1,... , A (1) = 300, a (2) = 100,..., A (8) = 50.

  The array a (i) of the common lottery table 2004 is determined so that the accumulated value matches the range of random numbers generated by the random number generator 2003a. For example, if the random number generation unit 2003a generates an integer in the range of 0 to 1000, all the accumulated values of the array a (i) are 1000.

  Further, the array a (i) of the common lottery table 2004 is determined so that the ascending order accumulated value and the descending order accumulated value of the array a (i) are different for the same i. In other words, the ascending order cumulative value graph and the descending order cumulative value graph of FIG. 8 do not match. As will be described later, the random number acquired by the random number generation unit 2003a is used as a threshold, the cumulative value is compared with this, and the effect is selected using the number of additions when the cumulative value is equal to or greater than the threshold as a parameter. For example, when the threshold value is 550, in the ascending order, the number of additions = 3 and the effect 3 is selected when the number is greater than the threshold value, and in the descending order, the effect number 3 is selected when the number of additions is 6 and the effect 6 is selected.

  It can be said that the wider the interval between the two graphs in FIG. 8, the more different lottery results can be obtained for the plurality of operation states of the low accuracy time and the high accuracy time. Comes to occur. This point will be discussed with reference to FIG.

  Symbols c and d in FIG. 9 show extreme examples where a (1) = 1000, a (2) =... = A (8) = 0. In this example, the random number is any value from 0 to 1000. In ascending order (sign c), the number of additions = 1 and the cumulative value ≧ threshold is selected, and the corresponding effect is selected, and in descending order (sign d). When the number of additions = 8, the cumulative value ≧ threshold value, and an effect corresponding to this is selected. Since both extremes are selected in ascending order and descending order, it is possible to obtain lottery results for a plurality of operation states of low accuracy time and high accuracy time, but there is only one kind of effect to be selected (in ascending order). Production 1 when, production 8) in descending order. This is meaningless for lottery.

  The symbol o in FIG. 9 shows an extreme example in which a (1) = a (2) =... In this example, the same selection is made in ascending order and descending order (the ascending order and descending order graphs match, and their interval is zero), so that different lottery results are obtained for the states of the plurality of operations of low accuracy time and high accuracy time. However, there is no bias in the selection probabilities of a plurality of effects (the selection probabilities of effects 1 to 8 are all the same). The common lottery table 2004 does not include the sign “O”. In other words, the lottery probability of a plurality of effects by the apparatus of FIG. 6 is not uniform and may be premised on that there is a bias (there is an effect with a high selection probability and an effect with a low selection probability).

  The same selection in ascending order and descending order is not limited to the sign of FIG. 9, but when the numerical value of the array is symmetric with respect to the center of the array, that is, a (1) = a (8), This is the case where a (2) = a (7), a (3) = a (6), and a (4) = a (5). The common lottery table 2004 does not include such symmetrically arranged numerical values.

  If estimated based on the examples of FIGS. 8 and 9, it is considered that the contents of the common lottery table 2004 are set as follows.

(1) An arbitrary numerical value on the front side (the smaller side of i) of the array a (i) is larger than an arbitrary numerical value on the rear side (the larger side of i) (because it is not a symmetric array). .

(2) In the operation state in which the cumulative direction is ascending order (when the probability is low, the first state), an effect with a high selection probability is associated with the side with the smaller number of additions (reference number a in FIG. 8). Since the selection probability is considered to be higher as the slope of the graph in FIG. 8 is larger, the effect of the highest selection probability is associated with the number of additions at that position. In FIG. 8A, in particular, the selection probability of effect 1 with the number of additions = 1 and effect 3 with the number of additions = 3 is high.

(3) In the operation state in which the cumulative direction is descending (high probability, second state), an effect with a high selection probability is associated with the side with the larger number of additions (symbol A in FIG. 8). Similarly to (2), since the selection probability is considered to increase as the slope of the graph of FIG. 8 increases, the effect of the highest selection probability is associated with the number of additions at that position. In particular, in the code a in FIG. 8, the selection probability of the production 6 with the number of additions = 6 and the production 8 with the number of additions = 8 is high.

  Or it is set as follows.

(1 ′) An arbitrary numerical value on the front side (the smaller i side) of the array a (i) is smaller than an arbitrary numerical value on the rear side (the larger i side).

(2 ') In the operation state in which the cumulative direction is ascending order (when the probability is low, the first state), the effect with the low selection probability is associated with the side with the smaller number of additions.

(3 ') In the operation state in which the accumulation direction is descending order (when the probability is high, the second state), the effect of low selection probability is associated with the side where the number of additions is large.

  With reference to the flowchart of FIG. 11, the lottery process for effects according to the embodiment of the invention will be described.

S10: The access order inversion unit 2005 selects an access order, that is, whether to read out numerical values from the common lottery table 2004 in ascending order or in descending order according to the state of operation.

  The operation states include a low-accuracy time (first state) and a high-accuracy time (second state). The correspondence between the operation state and the access order is also arbitrary, and is not limited to the correspondence described below.

S11: The random number generator 2003a acquires a random value. This is set as a threshold for determination to be used in S16.
For example, it is assumed that the acquired random number value is 550, and this is set as a threshold value.

S12: According to the selection in S10, the access order reversing unit 2005 performs the ascending order process of S13U or the descending order process of S13D.

S13U: The access order reversing unit 2005 sets i = 1 in order to designate the head of the array a (i) as an initial value for obtaining the accumulation.

S13D: The access order reversing unit 2005 sets i = n to designate the end of the array a (i) as an initial value for obtaining the accumulation. In the example of FIG. 7, n = 8.

S14: The access order reversing unit 2005 reads the numerical value of a (i) from the common lottery table 2004 using i set in S13U or S13D, and sends it to the lottery processing unit 2003.

S15: The lottery processing unit 2003 sets a (i) received from the access order reversing unit 2005 as a cumulative value and sets the number of additions to 1. The initial value of i is set to 0.

S16: The lottery processing unit 2003 compares the accumulated value with a threshold value.
When the accumulated value is equal to or greater than the threshold value, S21 is executed. When the accumulated value is smaller than the threshold value, S17 to S20 are executed.

S17: According to the selection in S10, the access order inversion unit 2005 performs the ascending order process of S18U or the descending order process of S18D.

S18U: The access order reversing unit 2005 adds 1 to i so as to read the next numerical value in the array in ascending order in order to obtain the accumulation, and sets this as i again.

S18D: The access order reversing unit 2005 subtracts 1 from i to read the next numerical value in the array in descending order to obtain the accumulation, and sets this as i again.

S19: The access order reversing unit 2005 reads the next numerical value a (i) based on i set in S18U or S18D, and sends it to the lottery processing unit 2003.

S20: The lottery processing unit 2003 adds a (i) received from the access order reversing unit 2005 to the accumulated value, and sets this again as the accumulated value. At the same time, 1 is added to the number of additions, and this is again set as the number of additions. Then, the process returns to S16.

S21: The lottery processing unit 2003 refers to the effect selection table 2003b, and selects an effect associated with the number of additions (the value set in S15 or S20) when the accumulated value is equal to or greater than the threshold value.

  For example, as shown in FIG. 10A, an effect (k) is selected with k as the number of additions. Specifically, if the number of additions is 1, effect 1 is selected, if the number of additions is 2, effect 2..., If the number of additions is 8, effect 8 is selected.

  Alternatively, as shown in FIG. 10B, when the number of additions = k, the effect (n−k) is selected. Specifically, if the number of additions is 1, effect 8 may be selected, if the number of additions is 2, effect 7..., And if the number of additions is 8, effect 1 may be selected.

  According to the processing of FIG. 11, in the method of adding the numerical values of the array a (i) and using the number of times of addition when the predetermined reference value is exceeded as a parameter (offset), the low probability (first state) ) In order from the upper value (ascending order), and in high accuracy (second state), the value is added in order from the bottom (descending order). The production is selected based on this.

  The content of the common lottery table 2004 is such that an effect with a high frequency is set on the upper side when the accuracy is low, and an effect with a high frequency is set on the lower side when the accuracy is high.

  For example, assuming that the reference numerical value is 550, in the low probability of adding the array of the common lottery table 2004 in ascending order, the added number is 3, the cumulative value becomes 700, and the threshold value is 550 or more (see FIG. 7). ). “Production 3” associated with the numerical value at that time is selected (see FIG. 10A).

  In addition, at the time of high accuracy in which the array of the common lottery table 2004 is added in descending order, the added number is 6 times, the cumulative value becomes 600, and the threshold value is 550 or more (see FIG. 7). “Production 6” associated with the numerical value at that time is selected (see FIG. 10A).

  As described above, according to the gaming machine according to the embodiment of the invention, similarly to the conventional gaming machine, a plurality of operation states of low probability time and high probability time are different even when the same random number value is obtained. A lottery result can be obtained. Although conventional gaming machines require two lottery tables, the gaming machine according to the embodiment of the invention uses only one lottery table. Therefore, according to the embodiment of the invention, there is no problem that the data capacity of the lottery table does not increase and a large amount of memory is consumed.

  FIG. 12 shows a modification according to the embodiment of the invention. In FIG. 6, the access order reversing unit 2005 is provided separately from the lottery processing unit 2003. According to FIG. 6, there is a merit that the conventional lottery processing unit 2003 can be diverted. However, when newly designing, as shown in FIG. 12, an access order reversing unit 2005 is provided inside the lottery processing unit 2003 ′. You can

  FIG. 13 is a process flowchart of the apparatus of FIG.

S10: The access order inversion unit 2005 selects an access order, that is, whether to read out numerical values from the common lottery table 2004 in ascending order or in descending order according to the state of operation.

S12: According to the selection in S10, the lottery processing unit 2003 'performs either the ascending order process of S11U to S20U or the descending order process of S11D to S20D.

S11U: The lottery processing unit 2003 'acquires a random value by the random number generation unit 2003a. This is set as a threshold for determination to be used in S16U.

S14U: The lottery processing unit 2003 'reads a numerical value a (i) that is a value corresponding to i at the head from the common lottery table 2004.

S15U: The lottery processing unit 2003 'sets the read a (1) as a cumulative value and sets the addition count to 1.

S16U: The lottery processing unit 2003 ′ compares the accumulated value with a threshold value.
When the accumulated value is equal to or greater than the threshold value, S21 is executed. When the accumulated value is smaller than the threshold value, S19U and S20U are executed.

S19U: The lottery processing unit 2003 'obtains the next numerical value of the array in order to obtain the accumulation. 1 is added to i, this is changed to i, and a numerical value a (i) corresponding to the increased value of i is read out (the next numerical value a (i) is calculated based on the updated i). read out).

S20U: The lottery processing unit 2003 'adds the read a (i) to the accumulated value, and sets this again as the accumulated value. At the same time, 1 is added to the number of additions, and this is again set as the number of additions. Then, the process returns to S16U.

S11D: The lottery processing unit 2003 'acquires a random value by the random number generation unit 2003a. This is set as a determination threshold value used in S16D.

S14D: The lottery processing unit 2003 'reads a numerical value a (n) that is a value corresponding to i at the end from the common lottery table 2004 (for example, n = 8).

S15D: The lottery processing unit 2003 'sets the read a (n) as a cumulative value and sets the addition count to 1.

S16D: The lottery processing unit 2003 ′ compares the accumulated value with a threshold value.
When the accumulated value is equal to or greater than the threshold value, S21 is executed. When the accumulated value is smaller than the threshold value, S19D and S20D are executed.

S19D: The lottery processing unit 2003 'reads the next numerical value of the array in order to obtain the accumulation. 1 is subtracted from i, this is changed to i, and a numerical value a (i) corresponding to the value of i after the reduction is read out (the next numerical value a (i) is read based on the updated i). read out).

S20D: The lottery processing unit 2003 'adds the read a (i) to the accumulated value, and sets this again as the accumulated value. At the same time, 1 is added to the number of additions, and this is again set as the number of additions. Then, the process returns to S16U.

S21: The lottery processing unit 2003 ′ refers to the effect selection table 2003b and is associated with the number of additions (the value set in S15U or S20U, or S15D or S20D) when the cumulative value is equal to or greater than the threshold value. Select a production.

  The modified example of FIGS. 12 and 13 has the same effect as the apparatus of FIGS.

  A description is added about a modification.

  The embodiment of the invention can be applied to the winning combination lottery of the main board 10 instead of the effect lottery. In this case, a “winning combination selection table” is used instead of the effect selection table of FIG. The structure of the winning combination selection table is the same as that of the effect selection table, and the number of additions and the winning combination are associated with each other instead of the contents of the effect in FIG. If the bonus combination is difficult to win in the low probability state and the bonus combination is easy to hit in the high probability state, the bonus combination is placed below the winning combination selection table in the ascending order as shown in FIG. In the case of descending order as shown in FIG. 10B, the bonus combination may be placed on the upper side of the winning combination selection table.

  The embodiment of the invention can be applied to AT lottery instead of production lottery. In this case, an “AT selection table” is used instead of the effect selection table of FIG. The structure of the AT selection table itself is the same as that of the effect selection table, and instead of the effect contents in FIG. 10, the number of additions is associated with the number of AT-acquired games (if the number of games is O, it is lost). . As shown in FIG. 10 (a), the AT number of games is 1 or more and the number of acquired games is such that the AT is difficult to hit in the low probability state and the AT is easy to hit in the high probability state. A large number of ATs may be placed below the AT selection table, and may be placed above the AT selection table when arranged in descending order as shown in FIG.

  In the above description, a slot machine has been described as an example, but the embodiment of the present invention can also be applied to other gaming machines such as pachinko machines.

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

20 Sub-board 2003, 2003 ′ Lottery processing unit 2003a Random number generating unit 2004 Common lottery table 2005 Access order reversing unit

Claims (2)

In a gaming machine including a processing unit that performs a predetermined lottery and operates such that a selection probability at the time of performing the lottery is different between a predetermined first state and a second state,
A common lottery table storing a plurality of predetermined numerical values in sequence as array a (i);
A random number generator for generating a random number, sequentially reading the array a (i) of the common lottery table in ascending or descending order of i, accumulating the read numerical values, and storing the accumulated value as the random number generator In accordance with the comparison result, the lottery processing unit for determining the production content based on the cumulative number of times and outputting the result as the result of the lottery, according to the comparison result,
When the operation state of the processing unit changes from one of the first state or the second state to the other, the reading order of the array a (i) of the common lottery table is changed from ascending order of i to descending order. Or an access order reversing unit that reverses from descending order to ascending order,
The content of the common lottery table is determined so that the accumulated value of the entire array a (i) matches the range of random numbers generated by the random number generator,
The gaming machine characterized in that the content of the common lottery table is determined so that an ascending order cumulative value and a descending order cumulative value of the array a (i) are different for a specific i.   Among the plurality of lottery results, the lottery result that should have a high selection probability in the first state is associated with one side of the array a (i), and the selection probability is calculated in the second state. 2. The gaming machine according to claim 1, wherein a lottery result to be raised is associated with the other side of the array a (i).

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