JP4621093B2 - Game machine lottery equipment - Google Patents

Description

  The present invention relates to a lottery device for gaming machines used in gaming machines such as slot machines.

  A gaming machine such as a general slot machine includes a start switch for starting rotation of three reels having a plurality of symbols drawn on the outer peripheral surface, and three stop switches corresponding to each reel. After three medals are inserted, the three reels start rotating by operating the start switch. In addition, a lottery for determining a winning combination is performed. Then, when the player sequentially operates the stop switch corresponding to each reel, the rotation of the corresponding reel is stopped. When a predetermined winning combination is won by the lottery, the symbol corresponding to the winning combination is displayed. Reel stop control is performed so that the combinations are easy to align, and when the combination of symbols stops on one or more winning lines activated according to the number of medals inserted, it is preset according to the winning combination. The number of medals will be paid out.

  A lottery means for performing a lottery for determining a winning combination is generally configured as follows. That is, the clock pulse signal output from the oscillation circuit having an oscillation frequency of several MHz is counted by, for example, a 16-bit count circuit. At this time, the count value is incremented by 1 for each clock pulse signal, so that the count value of 0 to 65535 (in the case of 16 bits) is repeatedly counted at a period of about several tens of ms. Then, the count value at the operation timing of the start switch is latched by the latch circuit, and the latched count value is compared with the lottery table in which the numerical ranges of the winning combinations and loses are determined in advance, and the winning combination of each winning combination is determined. Or judge the loss.

  In such a gaming machine, an illegal board is attached to the wiring connecting the start switch and the CPU, and the operation signal from the start switch is sent to synchronize with the clock pulse signal of the CPU and match the cycle of the count circuit of the lottery means. There were cases where cheating was carried out that slightly delayed and caused many specific winning combinations. That is, for example, when the oscillation circuit used for counting of the count circuit is also used as the oscillation circuit for driving the CPU, it is easy to predict the cycle of the count value based on the blinking cycle of the lamp. Furthermore, there has been a case where an illegal act is performed in which a signal generator for generating a signal having a specific period is obstructed and a start switch is operated at a certain timing to make it easy to win a winning combination. Therefore, various countermeasures have been conventionally proposed (see, for example, Patent Documents 1 and 2). In the gaming machine described in Patent Document 1, the clock pulse signal input to the count circuit is changed by the frequency changing means, and the gaming machine described in Patent Document 2 includes a plurality of oscillation circuits having different oscillation frequencies. The clock pulse signal input to the count circuit is selected by the selection means. With such a configuration, by changing the period until the count value of the count circuit reaches a specific numerical value range corresponding to the winning combination, the above-described fraud is prevented in advance.

JP 2002-291972 A (paragraph [0018]) JP 2003-62174 A (paragraph [0018])

  When the above-described fraudulent acts are performed, the reliability of the general player's game is impaired, and therefore, it is required to more reliably prevent the fraudulent acts as described above.

  The present invention has been made in view of the above problems, and provides a lottery device for a gaming machine that can more reliably prevent fraud by making it more difficult to predict the cycle of random numbers used in the lottery. The purpose is to provide.

In order to achieve the above object, a lottery device for a gaming machine according to the present invention generates first random number generation means for generating pseudo-random numbers having periodicity, and generation of physical random numbers with almost no bias using physical phenomena. a second random number generation means consisting of the physical random number generator for performing, using said physical random number generated by the pseudo-random number and the second random number generating means is generated by the first random number generation means, lottery Lottery determination means for determining whether or not the result is winning of a predetermined winning combination ; storage means for storing a plurality of lottery tables in which a plurality of types of winning combinations winning or losing are set for each predetermined numerical range; A plurality of lottery tables stored in the storage means, wherein the same winning combination is in a numerical value range different from each other, and the winning probabilities of the same winning combination are set to be the same, and the lottery determination hand Selects one lottery table from among the plurality of lottery table at approximately the same probability on the basis of the physical random number, performs the determination by matching with the pseudo-random number with a numerical range of lottery table said selected (Claim 1). Here, the pseudo random number is a random numerical value obtained by calculation such as linear congruential method, BBS, Fortuna, Mersenne Twister method, and is also referred to as arithmetic random number. Such an arithmetic random number basically requires some kind of initial value setting, and has reproducibility to generate the same random number sequence for the same initial value and periodicity to repeat the same random number sequence. Further, for example, a numerical value that is sequentially incremented by 1 may be output, and for example, a numerical value that is output in synchronization with an operation input timing that is arbitrarily performed by the player may be used as a pseudo-random number. As physical phenomena, thermal noise, white noise, radioactive decay, atmospheric noise, quantum optics, or the like inside a semiconductor or an electric circuit can be used. Furthermore, the physical random number is a numerical sequence arranged randomly using these natural phenomena. Since the physical random number does not have periodicity, a pattern composed of a specific numerical sequence is not unnaturally repeated even if the physical random number continues to be used indefinitely. As the physical random number generator, an IC that generates a random number using these physical phenomena as a random number source can be used.

Further, latch means for latching the pseudo random number and the physical random number at the same timing, respectively, wherein the lottery determination means has the plurality of lottery tables with substantially the same probability based on the physical random number latched by the latch means. One lottery table may be selected from among the lottery tables, and the determination may be performed using the numerical range of the selected lottery table and the pseudo-random number latched by the latch means (claim 2).

The lottery device for a gaming machine according to the present invention includes a first random number generator that generates a pseudo-random number having periodicity, and a physical random number generator that generates a substantially random physical random number using a physical phenomenon. The lottery result is a predetermined winning combination using the second random number generation means, the pseudo random number generated by the first random number generation means, and the physical random number generated by the second random number generation means. A lottery determination means for determining whether or not the winning combination, a storage means for storing a plurality of lottery tables in which a plurality of types of winning combinations winning or losing are set for each predetermined numerical range, the pseudo random number and the A plurality of lottery tables stored in the storage means, wherein the same winning combination is in a numerical range different from each other, and the same winning combination is provided. Right Probabilities are set to be the same, and the lottery determination means selects one lottery table from the plurality of lottery tables with substantially the same probability based on the physical random number, and the numerical range of the selected lottery table And the calculation result of the calculation means are compared to perform the determination (claim 3 ). Here, the predetermined operation may be, for example, an arithmetic operation or a logical operation.

Further, the lottery determination means selects one lottery table from the plurality of lottery tables with substantially the same probability using the upper bits of the calculation result of the arithmetic means, and the numerical range of the selected lottery table good even makes the determination by checking the low-order bit of the operation result of the arithmetic means (the claim 4).

According to the first aspect of the present invention, using pseudo-random numbers having periodicity and almost random physical random numbers , the same winning combination is in a numerical range different from each other, and the winning probability of the same winning combination is One lottery table is selected with substantially the same probability from a plurality of lottery tables set identically and stored in the storage means, and the numerical range of the selected lottery table is compared with the pseudo random number. In order to determine whether or not the lottery result is a winning combination, a lottery table that is selected from a plurality of lottery tables and used for determination is predicted as compared with the case where only a pseudorandom number having periodicity is used. It is much more difficult to do so, and it is possible to more reliably prevent fraudulent acts that are synchronized with the random number cycle.

According to the invention of claim 2, a pseudo random number and a physical random number are latched at predetermined timings respectively, and one lottery is selected from a plurality of lottery tables with substantially the same probability based on the latched physical random number. Since the table is selected and the lottery result is determined using the numerical range of the selected lottery table and the latched pseudorandom number, the determination can be easily and reliably performed.

According to the invention described in claim 3 , the predetermined calculation is performed using the pseudo-random number having periodicity and the physical random number having almost no bias, and the same winning combination is in a numerical range different from each other, and One lottery table is selected with substantially the same probability based on a physical random number from a plurality of lottery tables stored in the storage means having the same winning combination winning probability, and the selected lottery table Compared with the case where only a pseudo-random number is used, since the lottery result is determined by checking the numerical range and the calculation result of the calculation means to determine whether or not the lottery result is a winning combination. It is much more difficult to predict the lottery table used in the process, and it is also difficult to predict the collation result with the numerical range of the selected lottery table, so that illegal acts can be prevented more reliably.

Further, according to the invention described in claim 4, it performs a predetermined calculation using the pseudo random number and physical random number, from among the plurality of lottery table at approximately the same probability with the upper bits of the operation result select one lottery table for conducting a judgment of collating the lower bits of the numerical ranges and calculation results of selected by lottery table lottery result, compared with the case of using the pseudo random number only, a plurality of Predicting the lottery table that is selected from the lottery table and used for the determination is much more difficult, and it is also difficult to predict the result of matching with the numerical range of the selected lottery table, so that illegal acts are more reliably performed. Can be prevented. Further, since the selection of the lottery table and the comparison with the numerical range of the lottery table can be performed using the calculation result of the pseudo random number and the physical random number, the configuration can be simplified.

<First Embodiment>
FIG. 1 is a perspective view of a slot machine to which a first embodiment of a lottery device for gaming machines according to the present invention is applied. The slot machine 1 in this embodiment is configured, for example, as shown in FIG. That is, in the slot machine 1, the front surface of the housing 3 is closed by the front panel 5 so as to be freely opened and closed, and the operation plate 7 is disposed at a substantially central height position of the front panel 5. A front plate 9 is disposed above the front plate 9.

  The front plate 9 is provided with a horizontally long display window 11. In addition, left, middle and right reels 13L, 13M, and 13R (see FIG. 2) are arranged inside the display window 11. For example, “7”, “frog”, “BAR”, “bell”, “watermelon”, “cherry”, and “Replay” are provided on the left, middle, and right reels 13L, 13M, and 13R. Are respectively displayed in a predetermined arrangement. Further, frame numbers from 0 to 20 are assigned to each symbol in order. For example, a reel tape on which symbols of frame numbers 0 to 20 are printed is attached to the peripheral surface of the reel to constitute left, middle and right reels. When the left / middle / right reels rotate, symbols are displayed on the display window 11 in the order of frame numbers 20, 19,..., 0, 20,. From the display window 11, when the reels 13L, 13M, and 13R stop rotating, the symbols are set to look into a total of three, one for each of the upper, middle, and lower stages. That is, when all three reels 13L, 13M, and 13R are stopped, a total of nine symbols arranged in three columns and three rows are displayed.

  Further, the operation panel 7 has a bet switch 15 for instructing the insertion of one medal from the credit medals stored inside, and the maximum number of medals per game (for example, three) from the credit medals. A maximum bet switch 17 for instructing the rotation, a lever-shaped start switch 19 for starting the rotation of each reel, and the left, middle and right for stopping the rotation of the left, middle and right reels 13L, 13M and 13R, respectively. Stop switches 21L, 21M, and 21R, a settlement switch 23 for paying out credit medals, and a medal slot 25 are provided.

  In addition, a liquid crystal display 27 for displaying a moving image or the like is provided in the approximate center above the front plate 9, and various winning symbols are displayed immediately above the liquid crystal display 27. An explanation panel 29 is provided, and speakers 31L and 31R are provided on the left and right sides of the liquid crystal display 27 and the explanation panel 29, respectively, for performing effects such as music. A central lamp portion 33M is disposed on the upper side of the explanation panel 29 and the speakers 31L and 31R, and left and right lamp portions 33L and 33R are disposed on the left and right sides thereof. Each lamp unit 33M, 33L, 33R is provided with a light source such as a light emitting diode. These lamp portions 33M, 33L, and 33R are integrally formed, and constitute an upper lamp portion 33 for performing effects such as notifying a player of winning and winning.

  In addition, a lower panel 35 on which a decorative image or the like is displayed is provided below the operation panel 7. A lower lamp unit in which a plurality of light sources are arranged in, for example, two rows on the left and right sides of the lower panel 35. 37L and 37R are provided. A medal payout opening 39 and a medal receiver 41 for receiving medals paid out from the payout opening 39 are provided below the lower panel 35. A hopper unit 43 (see FIG. 2) for discharging medals to the payout opening 39 is disposed below the reels 13L, 13M, and 13R inside the housing 3. A credit indicator 45 for displaying the number of stored credit medals is disposed at the lower left corner of the front plate 9. The credit display 45 is composed of, for example, two 7-segment LEDs, and can display a 2-digit stored number.

  FIG. 2 is a block diagram showing an electrical configuration of the slot machine 1, and FIG. 3 is a block diagram showing a main part of the function and circuit configuration of the main control board 63. As shown in FIG. In FIG. 2, the insertion sensor 51 is provided in the vicinity of the medal insertion slot 25 inside the housing 3 and detects inserted medals one by one. The payout sensor 53 is provided at the exit of the hopper unit 43 and detects medals paid out to the payout outlet 39 one by one. The left / middle / right position sensors 55L, 55M, and 55R are for detecting the rotational positions of the left / middle / right reels 13L, 13M, and 13R, respectively. For example, the left / middle / right reels 13L, 13M, and 13R Each of the provided photointerrupters detects the protruding portion. When the left, middle, and right reels 13L, 13M, and 13R rotate, the protruding portion is detected every round and the detection signal is output to the main control board 63. In this embodiment, for example, when the left / middle / right position sensors 55L, 55M, and 55R detect the protrusions, the symbol of frame number 20 is arranged in the middle of the display window 11, respectively. . The hopper motor 57 is disposed in the hopper unit 43 and pays out medals toward the payout opening 39 by driving thereof. In this embodiment, each of the reels 13L, 13M, and 13R is rotationally driven by, for example, a stepping motor.

  Further, in the slot machine 1, a main control board 63 on which a main CPU 61 that controls a game is mounted and a sub control board 73 on which a sub CPU 71 that controls an effect related to the game is mounted are provided separately. ing. The RAM 65 of the main control board 63 temporarily stores data, and the ROM 67 stores a game machine program including preset data (such as a stop table described later). The main CPU 61 controls the game by operating in accordance with the game machine program in the ROM 67 based on the reference clock pulse signal from the crystal oscillator 69a of the reference oscillation circuit 69. Further, the main CPU 61 sends data related to the game to the sub CPU 71 as effect control data. The memory 75 of the sub-control board 73 includes a RAM unit that temporarily stores data and a ROM unit that stores a program for rendering. The sub CPU 71 controls the effects related to the game by operating according to the effect control data and the effect program from the main CPU 61 based on the reference clock pulse signal from the reference oscillation circuit (not shown). For example, the sub CPU 71 displays a moving image on the liquid crystal display 27 or plays music from the speakers 31L and 31R in accordance with an effect pattern set in advance corresponding to the progress of the game or the result of the lottery by the lottery means 110. The light sources of the upper lamp unit 33 and the lower lamp units 37L and 37R are flashed simultaneously or individually.

  In FIG. 3, the game control means 100 of the main control board 63 controls the game. The game includes a normal game which is a general game and a special game (bonus game) which is a game advantageous to the player over the normal game, and the game control means 100 controls these games.

  Briefly explaining the normal game, in this slot machine 1, the insertion sensor 51 detects the insertion of a medal from the medal insertion slot 25, or the operation of the bet switch 15 or the maximum bet switch 17 instructs the insertion of a credit medal. If there is, the game is started. When the start switch 19 is operated after the game starts, the rotation of all three reels 13L, 13M, 13R starts almost simultaneously. In addition, a lottery is performed by the lottery means 110. Thereafter, when one of the three stop switches 21L, 21M, and 21R is operated, rotation of the reels 13L, 13M, and 13R corresponding to the stop switches 21L, 21M, and 21R is stopped. When all the three stop switches 21L, 21M, and 21R have been operated, the rotation of all three reels 13L, 13M, and 13R is stopped. At this time, when a predetermined symbol stops at a predetermined position, a prize is won, and a predetermined number of medals are paid out to the player by the hopper unit 43, or a predetermined profit such as replay is given to the player. Is done. Instead of paying out medals, credit medals may be stored inside.

  As a result of the lottery by the lottery means 110, a specific introduction game winning (big bonus (BB) winning), a specific gaming winning (regular bonus (RB) winning), a small role winning, a replay winning (Replay winning), and There is a losing. In addition, the prize includes a specific introduction game prize (BB prize) related to the transition to the specific introduction game (BB game), a specific game prize (RB prize) related to the transition to the specific game (RB game), and a predetermined number of games. Small prize winning related to the payout of the medal and replay winning related to the execution of replay (Replay). The configuration of the lottery means 110 will be described in detail later.

  The RB game refers to a game in which a specific winning game (JAC game) having a higher win probability than a normal game can be performed a plurality of times, and the BB game refers to a game having a high probability of introducing an RB game. In these RB and BB games, a lottery table 118 (described later) different from the normal game is used. When three predetermined symbols (for example, “7” and “frog”) are arranged on the winning line, a BB winning is made, and when there is a payout, a medal is paid out and the game shifts from the normal game to the BB game. . Further, when three predetermined symbols (for example, “BAR”) are arranged on the winning line, an RB winning is made. When there is a payout, a medal is paid out and the game shifts from the normal game to the RB game. Further, three predetermined symbols (for example, “watermelon” and “bell”) are arranged on the winning line, or the single winning symbol (for example, “Cherry”) on the left reel 13L and the middle / right reels 13M, 13R. When such a symbol stops on the winning line, each small prize is won and a predetermined number of medals are paid out. Further, when three predetermined symbols (for example, “Replay”) are arranged on the winning line, a Replay winning is achieved, and the game can be played again under the same conditions as the previous game without inserting a new medal.

  If the lottery result of the lottery means 110 is BB winning, the reels 13L, 13M, and 13R are controlled to stop based on the BB winning. However, if no BB winning is awarded at this time, the BB winning is It will be carried over until a BB prize is awarded. The same applies to RB winning. The states where the BB winning or the RB winning is carried over are referred to as “per BB internal” and “per RB internal”, respectively. On the other hand, the small role winning is not carried over to the next game unless the result of the lottery by the lottery means 110 is assigned a small role winning in the game in which the small role is won. The same applies to Replay winning.

  Based on the detection signals of the left / middle / right position sensors 55L, 55M, and 55R and the number of pulses supplied to each stepping motor that drives the left / middle / right reels 13L, 13M, and 13R, The rotational positions of the middle and right reels 13L, 13M, and 13R are detected. That is, the detection means 120 corresponds to a symbol positioned at a predetermined reference position (in this embodiment, for example, the middle stage of the display window 11) while the left, middle, and right reels 13L, 13M, and 13R are rotating and stopped. Each frame number to be detected is detected.

  The stop control means 125 performs stop control of the reels 13L, 13M, and 13R using the stop table 130 based on the lottery result of the lottery means 110. The stop table 130 is for determining the stop position of each of the reels 13L, 13M, 13R, and corresponds to the rotation position of the reels 13L, 13M, 13R when the stop switches 21L, 21M, 21R are operated. Thus, the number of sliding frames of the reels 13L, 13M, 13R is predetermined. The stop table 130 includes, for example, an all-reel stop table that collectively determines the number of sliding frames of all the reels 13L, 13M, and 13R. The stop table 130 is not limited to the all-reel stop table in which the number of sliding symbols of all the reels 13L, 13M, and 13R is collectively determined. For example, the stopping table 130 has a number of sliding symbols for only the left reel 13L (left (Reel stop table) and a table (middle / right reel stop table) in which the number of sliding frames of the middle / right reels 13M, 13R is determined.

  A plurality of stop tables 130 are provided for each lottery result by the lottery means 110. In this case, each stop table 130 is determined so that the relationship between the rotational positions of the reels 13L, 13M, and 13R and the number of sliding symbols may be different when the stop switches 21L, 21M, and 21R are operated. As a result, even if the lottery results by the lottery means 110 are the same and the rotation positions of the reels 13L, 13M, 13R are the same when the stop switches 21L, 21M, 21R are operated, the reels 13L, 13M , 13R stop positions (designs displayed on the display window 11) may be different.

  Then, the stop control means 125 first selects one stop table 130 from the plurality of stop tables 130 based on the lottery result by the lottery means 110. Next, the number of sliding frames of the reels 13L, 13M, 13R is determined from the selected one stop table 130 and the rotational positions of the reels 13L, 13M, 13R when the stop switches 21L, 21M, 21R are operated. To do. Here, if the number of sliding frames is determined to be 0, the rotation of the reels 13L, 13M, 13R is immediately stopped. That is, when the number of sliding frames is determined to be 0, the symbols displayed in the upper part of the display window 11 when the stop switches 21L, 21M, and 21R are operated are stopped and displayed in the upper part of the display window 11 as they are. . If the number of sliding frames is determined to be 1, the reels 13L, 13M, and 13R are rotated and stopped by one frame. That is, when the number of sliding symbols is determined as 1, the symbols displayed on the upper stage of the display window 11 when the stop switches 21L, 21M, and 21R are operated are 1 in the rotation direction of the reels 13L, 13M, and 13R. The frames are shifted and stopped and displayed in the middle of the display window 11.

  The winning determination unit 140 determines a winning when the detecting unit 120 detects that a predetermined symbol has stopped at a predetermined position. Specifically, the winning determination unit 140 determines that each of the “7” symbols is aligned on the winning line, or when the “frog” symbols are aligned on the winning line, each of them is a BB winning. Further, the winning determination unit 140 determines that an RB winning is achieved when three “BAR” symbols are arranged on the winning line. Also, the winning determination means 140 determines whether three “watermelon” symbols are aligned on the winning line, three “bell” symbols are aligned on the winning line, or “cherry” on the left reel 13L and the middle / right side. When any of the symbols on the reels 13M and 13R stops on the winning line, it is determined that each of the reels 13M and 13R is a small role winning. Further, the winning determination means 140 determines that a Replay winning is made when three “Replay” symbols are arranged on the winning line.

  The payout control means 150 operates the hopper unit 43 after the number of stored credit medals reaches an upper limit value (for example, 50 in this embodiment) when it is determined that a medal payout has been won, and the winning control is performed. The medals are paid out in the payout number corresponding to the mode. Further, the payout control means 150 increases the number of credit medals by the amount of payouts instead of the operation of the hopper unit 43 as medal payout until the number of stored credit medals reaches the upper limit value.

  Next, the lottery means 110 which is the first embodiment of the lottery device for gaming machines according to the present invention will be described. The oscillating circuit 111 of the lottery means 110 is configured in the same manner as the reference oscillating circuit 69. In this embodiment, for example, a crystal resonator (not shown) having an oscillation frequency of 4 MHz is provided. The count circuit 113 is a circuit that outputs the count value DATA. In this embodiment, for example, the count circuit 113 outputs the count value DATA in the range of 0 to 16383 in decimal. The first latch circuit 114 outputs latch data D1 obtained by latching the count value DATA output from the count circuit 113 at the operation timing of the start switch 19. As described above, the count value DATA output from the count circuit 113 is a numerical value of 0 to 16383 that is repeated in order. Therefore, strictly speaking, it is not a random number, but the operation timing of the start switch 19 is random. The latch data D1 output from the first latch circuit 114 can be handled as a pseudo random number. Thus, in this embodiment, the oscillation circuit 111 and the count circuit 113 constitute the “first random number generation means” of the present invention, and the count value DATA output from the count circuit 113 is the “period” of the present invention. It corresponds to a “pseudo-random number having a property”.

  The physical random number generation IC 115 generates a random number using a physical phenomenon. In this embodiment, for example, the physical random number RN in the range of 0 to 16383 in decimal number is used at a predetermined speed by using thermal noise inside the semiconductor. It is generated and output at (for example, 250 kbit / sec). The second latch circuit 116 outputs latch data D2 obtained by latching the physical random number RN output from the physical random number generation IC 115 at the operation timing of the start switch 19. Thus, in this embodiment, the physical random number generation IC 115 corresponds to the “second random number generation means” of the present invention, and the physical random number RN output from the physical random number generation IC 115 is the “substantially biased”. It corresponds to “no uniform random number”.

  In this embodiment, for example, the count value DATA output from the count circuit 113 and the physical random number RN output from the physical random number generation IC 115 are each output as 14-bit parallel data. The first latch circuit 114 and the second latch circuit 116 output the 14-bit parallel data as they are to the arithmetic means 117 as the latch data D1 and D2. When the physical random number generation IC 115 outputs the physical random number RN as serial data, a serial / parallel conversion circuit may be provided between the physical random number generation IC 115 and the second latch circuit 116.

  The calculation means 117 performs calculation processing between the latch data D1 and the latch data D2, and outputs the calculation result D3 to the lottery determination means 119 of the main CPU 61. In this embodiment, the calculation means 117 performs addition of D3 = D1 + D2, for example. The arithmetic processing performed by the arithmetic means 117 is not limited to addition, but may be other four arithmetic operations or logical operations. The calculation means 117 is set to return to 0 when the calculation result D3 overflows 16383 by addition, for example, and is set so that the calculation result D3 is in the range of 0 to 16383 in decimal. In this embodiment, the calculation means is constituted by the main CPU 61, but may be constituted by a hardware circuit.

  Whether the lottery table 118 selects the BB winning, the RB winning, the small role winning, or the Replay winning for the calculation result D3 of the entire range (that is, 0 to 16383) output from the calculating means 117. Or, whether to lose is determined for each predetermined numerical range. As the lottery table 118, in addition to the table for the normal game, a table for the BB game or the RB game is provided. The lottery determination unit 119 compares the calculation result D3 output from the calculation unit 117 with the lottery table 118 corresponding to the base game, the BB, the RB game, and the like, and determines whether it is a BB win, an RB win, or a small role win The lottery result of Replay winning or Losing is judged.

  FIG. 4 is a timing chart showing an example of signals and data in the first embodiment. The count value DATA output from the count circuit 113 is incremented by 1 as described above. Accordingly, in FIG. 4, the number increases from “333” to “342” by one. On the other hand, the physical random number RN output from the physical random number generation IC 115 is a uniform random number with almost no bias. The count value DATA and the physical random number RN are latched in synchronism with the operation timing of the start switch 19 by the first and second latch circuits 114 and 116, respectively. Therefore, the latch data D1 is “334”, “336”, “338”, “340”, and the latch data D2 is “089”, “556”, “257”, “319”. As a result, the calculation result D3 by the calculation means 117 is “423”, “892”, “595”, “659” as shown in FIG.

  The lottery determination means 119 checks the calculation result D3, that is, “423”, “892”, “595”, “659”, and the numerical range of the lottery table 118 for each operation of the start switch 19. Judgment of the winning or winning lottery results for each winning combination.

  Thus, according to this embodiment, the count value DATA output from the count circuit 113 and the physical random number RN output from the physical random number generation IC 115 are latched at the operation timing of the start switch 19, and the latch data D1, In order to calculate D2 by the calculation means 117, collate the calculation result D3 with the numerical value range of the lottery table 118, and determine the winning lottery result or the lost lottery result for each operation of the start switch 19, Compared to the case where only the count value DATA having periodicity is used, it is much more difficult to predict the cycle of the calculation result D3. Therefore, it is possible to more surely prevent an illegal act that is synchronized with the cycle of the random number. That is, even when an illegal act is performed in which the period of the random number is predicted and the operation timing of the start switch 19 is made periodic, the calculation result D3 obtained by calculating the count value DATA and the physical random number RN is periodic. The winning probability cannot be improperly improved.

  In addition, according to this embodiment, since the physical random number generation IC 115 that generates random numbers using thermal noise inside the semiconductor is provided, uniform random numbers with almost no bias can be easily generated. Further, the count value DATA output from the count circuit 113 and the physical random number RN output from the physical random number generation IC 115 are latched at the operation timing of the start switch 19, and the lottery result is obtained using the latched latch data D1 and D2. Since the determination is performed, the determination can be performed easily and reliably.

<Second Embodiment>
Next, the lottery means 110 which is the second embodiment of the lottery device for gaming machines according to the present invention will be described. FIG. 5 is a block diagram showing the main part of the function and circuit configuration of the main control board 63 in the second embodiment, and FIG. 6 shows the numerical range of table selection when selecting one lottery table from a plurality of lottery tables. FIG. 7 is a diagram illustrating an example, and FIG. 7 is a diagram illustrating an example of a numerical range for winning or losing each winning combination in each lottery table. The device configuration and electrical configuration of the slot machine to which the second embodiment is applied are the same as those of the first embodiment shown in FIGS. Moreover, in FIG. 5, the same code | symbol is attached | subjected to the same thing as 1st Embodiment.

  In the second embodiment, three types of lottery tables, ie, first, second, and third lottery tables 118a, 118b, and 118c, are provided as the lottery tables used in the normal game. Further, unlike the first embodiment, no arithmetic means is provided, and the latch data D1 and D2 output from the first and second latch circuits 114 and 116, respectively, are directly input to the lottery determination means 119 of the main CPU 61. The

  The lottery determination means 119 of the second embodiment uses the latch data D2 from the second latch circuit 116 to select one lottery table from the first, second, and third lottery tables 118a, 118b, and 118c. That is, for example, by comparing the table selection numerical range shown in FIG. 6 with the latch data D2, the first lottery table 118a is selected when 0 ≦ D2 ≦ 5460, and the second lottery when 5461 ≦ D2 ≦ 10921. The table 118b is selected. When 10922 ≦ D2 ≦ 16383, the third lottery table 118c is selected.

  Further, the lottery determination means 119 uses the latch data D1 from the first latch circuit 114 to determine the winning or lost lottery result of each winning combination. That is, for example, when the first lottery table 118a shown in FIG. 7 is selected, the latch data D1 is collated with the numerical range of the selected first lottery table 118a, and for example, when 0 ≦ D1 ≦ 99, It is determined to be a small role winning (cherry). When 100 ≦ D1 ≦ 149, it is determined as a small role winning (watermelon), and when 150 ≦ D1 ≦ 1999, it is determined as a small role winning (bell) and 2000 ≦ D1 ≦ 4499 ≦ D1 ≦ 4599 is determined to be BB winning, 4600 ≦ D1 ≦ 4699 is determined to be RB winning, and 4700 ≦ D1 ≦ 16383 is determined to be lost. .

  Here, as shown in FIG. 6, the probabilities of selecting the first, second, and third lottery tables 118a, 118b, and 118c are set to substantially the same value. That is, the probability that the first lottery table 118a is selected is 5461/16384, the probability that the second lottery table 118b is selected is 5461/16384, and the probability that the third lottery table 118c is selected is 5462/16384. It is.

  Also, as shown in FIG. 7, in the first, second, and third lottery tables 118a, 118b, and 118c, the same winning combination is set to a different numerical value range. That is, for example, the small role winning (cherry) is set to 0 ≦ D1 ≦ 99 in the first lottery table 118a, 500 ≦ D1 ≦ 599 in the second lottery table 118b, and in the third lottery table 118c, 4700 ≦ D1 ≦ 4799 is set.

  In the first, second, and third lottery tables 118a, 118b, and 118c, the winning probability and the loss probability of each winning combination are set to the same value. That is, the probability of winning a small role (cherry) is 100/16384, the probability of winning a small role (watermelon) is 50/16384, respectively, and the probability of winning a small role (bell) is 1850/16384, respectively. The Replay winning probability is 2500/16384, the BB winning probability is 100/16384, and the RB winning probability is 100/16384, respectively.

  FIG. 8 is a flowchart showing an example of a lottery process procedure of the main CPU 61 in the second embodiment. First, it is determined whether or not the start switch 19 has been operated (# 10). If there is no operation (NO in # 10), this routine is terminated, while there is an operation of the start switch 19 (YES in # 10). ), The process of acquiring the latch data D2 from the second latch circuit 116 is executed (# 11). The latch data D2 is obtained by latching the physical random number RN output from the physical random number generation IC 115 at a predetermined speed in synchronization with the operation timing of the start switch 19 by the second latch circuit 116. In step # 11, signal acquisition processing is performed at the input port of the main CPU 61 connected to the second latch circuit 116. Based on the acquired latch data D2, one lottery table is selected from the first, second, and third lottery tables 118a, 118b, and 118c (step # 12). That is, the lottery table is selected by collating the numerical value range of the table selection with the latch data D2.

  Next, the acquisition process of the latch data D1 from the first latch circuit 114 is executed (# 13). The latch data D1 is obtained by latching the count value DATA output from the count circuit 113 at a predetermined speed in synchronization with the operation timing of the start switch 19 by the first latch circuit 114. In step # 13, signal acquisition processing is performed at the input port of the main CPU 61 connected to the first latch circuit 114. Based on the acquired latch data D1, the winning or winning lottery result of each winning combination is determined (step # 14). That is, the latch data D1 is compared with the numerical range of the selected lottery table, and the lottery result is determined.

  Thus, according to this embodiment, the count value DATA output from the count circuit 113 and the physical random number RN output from the physical random number generation IC 115 are latched at the operation timing of the start switch 19, and the physical random number RN is latched. Based on the data D2, one lottery table is selected from the first, second and third lottery tables 118a, 118b and 118c, and the latch data D1 of the count value DATA is compared with the numerical range of the selected lottery table. The lottery result is judged. Therefore, since it becomes much more difficult to predict the cycle of the selected lottery table, it is possible to more reliably prevent fraudulent acts that are synchronized with the cycle of the random number. In other words, even if an illegal act that predicts the cycle of the random number and gives periodicity to the operation timing of the start switch 19 is performed, since the selection of the lottery table has no periodicity, the winning probability is illegally improved. Can not do it.

<Third Embodiment>
Next, the lottery means 110 which is the third embodiment of the lottery device for gaming machines according to the present invention will be described. FIG. 9 is a block diagram showing the main parts of the function and circuit configuration of the main control board 63 in the third embodiment. The device configuration and electrical configuration of the slot machine to which the third embodiment is applied are the same as those of the first embodiment shown in FIGS. Moreover, in FIG. 9, the same code | symbol is attached | subjected to the same thing as 1st Embodiment and 2nd Embodiment.

  In the third embodiment, as in the first embodiment, the calculation means 117 is provided, and the latch data D1 and D2 output from the first and second latch circuits 114 and 116, respectively, are input to the calculation means 117. The Similarly to the second embodiment, three types of lottery tables, ie, first, second, and third lottery tables 118a, 118b, and 118c, are provided as lottery tables used for normal games.

  The calculation means 117 of the third embodiment performs calculation processing between the latch data D1 and the latch data D2, and outputs the calculation result D4 to the lottery determination means 119 of the main CPU 61. In this embodiment, the calculation means 117 performs multiplication of D4 = D1 × D2, for example. Here, since the latch data D1 and D2 are 14-bit data in the range of 0 ≦ D1 ≦ 16383 and 0 ≦ D2 ≦ 16383 in decimal numbers, the calculation result D4 is 28-bit data. Note that the arithmetic processing performed by the arithmetic means 117 is not limited to multiplication, and any arithmetic processing result D4 may be used if it becomes 28-bit data.

  The lottery determination means 119 of the third embodiment is based on the numerical value D5 of the upper 14 bits of the calculation result D4 output from the calculation means 117, and one lottery table 118a, 118b, 118c is used. Select a lottery table. That is, for example, when the table selection numerical range is set as in FIG. 6 of the first embodiment, the upper 14-bit numerical value D5 of the calculation result D4 is collated with the table selection numerical range, and 0 ≦ The first lottery table 118a is selected when D5 ≦ 5460, the second lottery table 118b is selected when 5461 ≦ D5 ≦ 10921, and the third lottery table 118c is selected when 10922 ≦ D5 ≦ 16383.

  In addition, the lottery determination unit 119 of the third embodiment determines the winning or losing lottery result of each winning combination based on the lower 14 bits of the numerical value D6 of the calculation result D4 output from the calculation unit 117. That is, for example, when the numerical ranges of the first, second, and third lottery tables 118a, 118b, and 118c are set as in FIG. 7 of the first embodiment, for example, when the first lottery table 118a is selected. Is compared with the numerical value D6 of the lower 14 bits of the calculation result D4 output from the calculation means 117 and the numerical range of the selected first lottery table 118a, and when 0 ≦ D6 ≦ 99, the small winning combination ( Cherry), when 100 ≦ D6 ≦ 149, it is determined that the small role is won (watermelon), when 150 ≦ D6 ≦ 1999, it is determined that the small role is selected (bell), and when 2000 ≦ D6 ≦ 4499 Replay is determined, BB is determined when 4500 ≦ D6 ≦ 4599, RB is determined when 4600 ≦ D6 ≦ 4699, and ha when 4700 ≦ D6 ≦ 16383 Les and judges.

  Thus, according to this embodiment, the count value DATA output from the count circuit 113 and the physical random number RN output from the physical random number generation IC 115 are latched at the operation timing of the start switch 19, and the latch data D1, D2 is calculated by the calculation means 117, and one lottery table is selected from the first, second, and third lottery tables 118a, 118b, and 118c by using the higher-order 14-bit numerical value D5 of the calculation result D4. Using the lower 14-bit numerical value D6 of the result D4, the winning or winning lottery result of each winning combination is determined. Therefore, since it becomes much more difficult to predict the lottery table selection cycle than when only the count value DATA with periodicity is used, it is possible to more reliably prevent fraudulent acts that are synchronized with the random number cycle. can do. In other words, even if an illegal act that predicts the cycle of the random number and gives periodicity to the operation timing of the start switch 19 is performed, since the selection of the lottery table has no periodicity, the winning probability is illegally improved. Can not do it.

  The present invention is not limited to the above embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention. For example, in the second and third embodiments, three types of lottery tables are provided, but the present invention is not limited to this, and may be two types or four or more types. In this case, the more types of lottery tables, the more difficult it is to predict the lottery result, which is preferable.

  In the second and third embodiments, the numerical range for table selection and the numerical range for each lottery table are not limited to those shown in FIGS. However, as shown in FIG. 7, it is preferable to set the numerical range of each lottery table so that the winning probabilities of each winning combination are equal to each other.

  In the third embodiment, one lottery table is selected from the first, second, and third lottery tables 118a, 118b, and 118c using the upper 14-bit numerical value D5 of the operation result D4, and the operation result Although the lower 14-bit value D6 of D4 is used to determine the winning result or winning lottery result of each winning combination, the present invention is not limited to this, and the upper bit and the lower bit may be reversed. That is, one lottery table is selected from the first, second, and third lottery tables 118a, 118b, and 118c using the lower 14-bit numeric value D6, and the upper 14-bit numeric value D5 of the calculation result D4 is used. The lottery result may be determined.

  In each of the above embodiments, the physical random number generation IC 115 is one that generates physical random numbers using thermal noise inside the semiconductor. However, the present invention is not limited to this, and for example, a reverse bias is applied to a Zener diode. Generates physical random numbers using physical and natural phenomena such as thermal noise, white noise, radioactive decay, atmospheric noise, quantum optics, etc. inside semiconductors and electrical circuits, such as white noise generated by application. Anything to do. Here, the physical random number means a numerical sequence arranged at random using these natural phenomena. Since the physical random number does not have periodicity, there is an advantage that a pattern composed of a specific numerical sequence is not unnaturally repeated even if the physical random number continues to be used indefinitely.

  In the above embodiment, the main control board 63 and the sub control board 73 are provided with separate control boards, respectively, and the CPU and the memory are provided. However, the present invention is not limited to this, and a single control board is provided. You may comprise with one CPU and one memory. In the above embodiment, a three-reel slot machine is used, but the present invention is not limited to this, and can be applied to other gaming machines having four or more reels.

1 is a perspective view of a slot machine to which a first embodiment of a lottery device for gaming machines according to the present invention is applied. FIG. FIG. 3 is a block diagram showing an electrical configuration of the slot machine. It is a block diagram which shows the principal part of the function and circuit structure of a main control board. It is a timing chart which shows an example of a signal and each data in a 1st embodiment. It is a block diagram which shows the principal part of the function and circuit structure of a main control board in 2nd Embodiment. It is a figure which shows an example of the numerical range of the table selection at the time of selecting one lottery table from several lottery tables. It is a figure which shows an example of the numerical range of winning or losing of each winning combination in each lottery table. It is a flowchart which shows an example of the lottery process procedure in 2nd Embodiment. It is a block diagram which shows the principal part of the function and circuit structure of a main control board in 3rd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 19 ... Start switch, 67 ... ROM (memory | storage means), 110 ... Lottery means, 111 ... Oscillation circuit (1st random number generation means), 113 ... Count circuit (1st random number generation means), 114 ... 1st latch circuit (Latch means), 115 ... physical random number generation IC (second random number generation means, physical random number generator), 116 ... second latch circuit (latch means), 117 ... calculation means, 118, 118a, 118b, 118c ... lottery Table, 119 ... lottery determination means, DATA ... count value (pseudo random number), RN ... physical random number (uniform random number)

Claims (4)

First random number generation means for generating pseudo-random numbers having periodicity;
A second random number generation means comprising a physical random number generator for generating a substantially random physical random number using a physical phenomenon ;
Using the pseudo random number generated by the first random number generation means and the physical random number generated by the second random number generation means, it is determined whether or not the lottery result is a winning of a predetermined winning combination. Lottery determination means ;
Storage means for storing a plurality of lottery tables in which a plurality of types of winning combinations winning or losing are set for each predetermined numerical range ;
In the plurality of lottery tables stored in the storage means, the same winning combination is in a numerical range different from each other, and the winning probability of the same winning combination is set to be the same,
The lottery determination means selects one lottery table from the plurality of lottery tables with substantially the same probability based on the physical random number, and collates the numerical range of the selected lottery table with the pseudo random number. A lottery device for gaming machines, wherein the determination is performed . Latch means for latching the pseudo random number and the physical random number at the same timing,
The lottery determination means selects one lottery table from the plurality of lottery tables with substantially the same probability based on the physical random number latched by the latch means, and the numerical range of the selected lottery table and the The lottery device for a gaming machine according to claim 1, wherein the determination is performed using the pseudo-random number latched by a latch means . First random number generation means for generating pseudo-random numbers having periodicity;
A second random number generation means comprising a physical random number generator for generating a substantially random physical random number using a physical phenomenon;
Using the pseudo random number generated by the first random number generation means and the physical random number generated by the second random number generation means, it is determined whether or not the lottery result is a winning of a predetermined winning combination. Lottery determination means;
Storage means for storing a plurality of lottery tables in which a plurality of types of winning combinations winning or losing are set for each predetermined numerical range;
A calculation means for performing a predetermined calculation using the pseudo-random number and the physical random number;
With
In the plurality of lottery tables stored in the storage means, the same winning combination is in a numerical range different from each other, and the winning probability of the same winning combination is set to be the same,
The lottery determination means selects one lottery table from the plurality of lottery tables with substantially the same probability based on the physical random number, and selects the numerical range of the selected lottery table and the calculation result of the calculation means. collation to the determination <br/> drawing apparatus Yu TECHNICAL machine you and performs. The lottery determination means
A lottery table is selected from the plurality of lottery tables with substantially the same probability using the upper bits of the arithmetic result of the arithmetic means, and the numerical range of the selected lottery table and the arithmetic result of the arithmetic means are calculated. The lottery device for gaming machines according to claim 3 , wherein the determination is performed by collating with lower bits .

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