JP2005087620A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent fraudulence regarding a random number lottery from being committed in a game machine such as a slot machine. <P>SOLUTION: A random numeral value is acquired from a random number generating circuit with the starting operation of the game as a trigger, and a latch signal of a random numeral value which is output to the random number generating circuit by the starting operation is output by a plurality of times when the random number lottery is performed. Thus, a different random numeral value can be drawn by an acquiring timing of the random numeral value, and the random numeral values vary even if the starting operation is performed by adjusting to the counting cycle of the random numeral values. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a game machine represented by a slot machine (pachislot machine), and more particularly, to a technique for preventing fraud.

  In a gaming machine such as a slot machine, the content of the game is usually determined by the result of random lottery. The slot machine winning combination random number lottery will be described in detail. Normally, the slot machine is provided with a start operation unit that receives a start operation that triggers the lottery of each winning combination and the start of reel rotation. (For example, see Patent Document 1). A configuration of a general start operation unit will be described with reference to FIG. As shown in FIG. 9A, the start operation unit is configured such that an operation lever 1 is provided on a hollow support member 3 so as to be rotatable up and down around an axis 2. A disc-shaped stopper 4 is loosely fitted on the shaft portion of the operation lever 1, and a coil that constantly biases the operation lever 1 to the neutral position between the stopper 4 and a spring receiver 5 fixed to the shaft portion. A spring 6 is loaded. When the player presses the spherical end of the operating lever 1 downward, the operating lever 1 rotates (FIG. 9B). This causes the coil spring 6 to be compressed. The lever 1 returns to the neutral position (FIG. 9A). An optical sensor 7 is provided at the end of the operation lever 1 to detect the passage of the end, and when the operation lever 1 is operated and rotated by the player, the end is moved from the detection range of the sensor. Since it moves to the position which deviated (Drawing 9 (b)), operation to an operation lever will be recognized by detecting this. A detection signal from the sensor is sent to the control unit.

  The control unit is provided with a random number generator that generates a predetermined range of random numbers (for example, 0 to 65535). The random number generator is usually composed of a counter circuit that periodically and cyclically counts random values in the above range based on the clock signal generated from the clock signal generation circuit, and latches the detection signal from the sensor as a latch signal. The random number counted as is latched. The control unit acquires the latched random number value and performs random number lottery. In the random lottery for a winning combination, a random value is assigned to each winning combination within a certain range, and the winning number is determined by comparing the random number obtained from the random number generator with the range of random values assigned to each winning combination. It is determined whether or not. For example, if the random number acquired from the random number generator is 0 to 220, the big bonus (BB) is won, if 221 to 330 is the regular bonus (RB), if 331 to 1400, the cherry is won. Moreover, when it does not belong to any of these ranges, it will be out of place.

JP-A-10-328352

  Here, when the random number lottery is performed using the random number generator as described above, since the random number value is periodically generated repeatedly, the operation that triggers the random number lottery is repeated at a certain cycle like the start operation described above. If done, random numbers in a certain range are repeatedly used for random lottery, and the same lottery result may be obtained. It is practically impossible for human sense to repeatedly perform the operation that triggers random number lottery at a certain period. However, this is not always possible if special equipment is used, and there are actually players who obtain advantageous lottery results that deviate from the original lottery probability. A game using such a special device is a game that is not originally planned by the game stand and can be said to be an illegal act.

  In view of such problems, an object of the present invention is to prevent fraudulent acts related to random number lottery.

  According to the present invention, in a gaming machine that determines the contents of a game based on the result of random number lottery, an output means for outputting a random value holding command in response to a predetermined operation of the player with respect to the gaming machine, A random number generating means for holding the generated random number value when the holding instruction is output from the output means, and a random value held in the random number generating means at a predetermined timing. Lottery means for obtaining and performing random number lottery based on the obtained random number value, the output means outputs the holding instruction a plurality of times for each predetermined operation of the player, There is provided a game machine characterized by holding a random value generated each time the holding command is output from the output means.

  According to this gaming table, a random value holding command is output a plurality of times in accordance with a predetermined operation of the player, and the random number generating means holds the random value generated each time this holding command is output. The random value is updated for each instruction. Therefore, different random numbers are acquired at the predetermined timing when the lottery means acquires random numbers. Accordingly, even if the predetermined operation of the player is performed at a timing corresponding to the random number generation cycle of the random number generation means, the random value used for the random number lottery will be different, and illegal acts related to the random number lottery will be prevented. Can do.

  In the present invention, the output means is rotated by being biased by a predetermined operation of the player, and detects a rotating body having a plurality of detected parts, and the passage of the rotating body through the detected parts. And a sensor that outputs the holding command based on the detection result. According to this configuration, the holding instruction can be output a plurality of times with a relatively simple mechanism.

  Further, in the present invention, it further includes a moving unit that is moved by being biased by a predetermined operation of the player, and the output means detects whether or not the moving unit exists at a predetermined position, A sensor that outputs the holding command when it is detected that the sensor does not exist at the predetermined position; and a vibration unit that vibrates the sensor within a predetermined range. The moving portion can be set within a range that can be detected by the sensor. According to this configuration, by vibrating the sensor, it is possible to output a random number value retention command a plurality of times in accordance with a predetermined operation of the player by a relatively simple mechanism. Moreover, since the range of vibration is a range in which the sensor can detect the moving part when the moving part is at the predetermined position, it is possible to prevent erroneous detection of the player's predetermined operation.

  Further, according to the present invention, in the gaming machine that determines the contents of the game based on the result of the random number lottery, the output means for outputting a random value holding instruction in response to a predetermined operation of the player with respect to the gaming machine, and the random number value Is generated periodically, and when the holding command is output from the output means, a random number generating means for holding the generated random number value, and a random number held in the random number generating means at a predetermined timing. Lottery means for obtaining a numerical value and performing random number lottery based on the obtained random number value, and the output means has a plurality of detected parts and is energized by a predetermined operation of the player and A movable member provided so as to cyclically move the detection unit; and a sensor that detects passage of the movable member through the detected portion and outputs the holding command based on the detection result. Of the detected There amusement machine, characterized by being arranged at unequal intervals is provided.

  According to this gaming machine, the sensor outputs a random value holding instruction upon detection of the detected part. However, since the detected parts are arranged at unequal intervals, the output timing varies. Can be made. Accordingly, even if the predetermined operation of the player is performed at a timing corresponding to the random number generation cycle of the random number generation means, the random value used for the random number lottery will be different, and illegal acts related to the random number lottery will be prevented. Can do.

  In the present invention, the movable member is a rotating body that is rotated by being biased by a predetermined operation of the player, and the plurality of detected parts are arranged at unequal intervals in the circumferential direction of the rotating body. May be. According to this configuration, it is possible to vary the output timing of the holding instruction with a relatively simple mechanism.

  Further, according to the present invention, in the gaming machine that determines the contents of the game based on the result of the random number lottery, the output means for outputting a random value holding instruction in response to a predetermined operation of the player with respect to the gaming machine, and the random number value Is generated periodically, and when the holding command is output from the output means, a random number generating means for holding the generated random number value, and a random number held in the random number generating means at a predetermined timing. A lottery unit that acquires a numerical value and performs random lottery based on the acquired random number value; and a moving unit that moves when energized by the player's operation, and the output unit includes the moving unit at a predetermined position. A sensor that outputs the holding command when it is detected that the sensor does not exist at the predetermined position, and a vibration unit that vibrates the sensor within a predetermined range. Range is Amusement machine which the moving part is the sensor characterized in that it is a range of possible detection is provided when the mobile unit is in the predetermined position.

  According to this gaming machine, by causing the sensor to vibrate, it is possible to vary the output timing of the holding command due to the relative positional relationship between the sensor and the moving unit during a predetermined operation of the player. it can. Moreover, since the range of vibration is a range in which the sensor can detect the moving part when the moving part is at the predetermined position, it is possible to prevent erroneous detection of the player's predetermined operation. Accordingly, even if the predetermined operation of the player is performed at a timing corresponding to the random number generation cycle of the random number generation means, the random value used for the random number lottery will be different, and illegal acts related to the random number lottery will be prevented. Can do.

  In each of the above inventions, the lottery means comprises a second output means for outputting a random number value acquisition command held in the random number generator to the lottery means in response to a predetermined operation of the player. Can acquire the random value held in the random number generation means at the predetermined timing after the acquisition command is output from the second output means. In this case, the predetermined timing may be determined at a predetermined fixed period.

  Further, in each of the above inventions, a plurality of types of patterns are provided, and a plurality of reels that are rotationally driven, a start switch for starting the rotation of the reels, and a corresponding one of the reels. A winning switch for determining a winning based on whether a combination of a stop switch for individually stopping the rotation of the reels and the picture displayed by the reel at the time of stoppage is a predetermined picture combination Determination means, and the output means can output the holding command in response to an operation on the start switch.

  As described above, according to the present invention, fraudulent acts related to random number lottery can be prevented.

<First Embodiment>
FIG. 1 is a perspective view of a slot machine 100 according to an embodiment of the present invention. In general, the slot machine 100 includes a plurality of reels having a plurality of types of patterns, lottery means for determining whether or not an internal winning of a plurality of types of winning combinations is won by a random number lottery, and rotation of the reels. A combination of a start switch, a stop switch provided for each of the reels for individually stopping the rotation of the reel, and the design displayed by the reel at the time of the stop is a predetermined design. And a determining means for determining a winning based on whether or not the combination is. In the present embodiment, an illegal act is prevented with respect to a random number lottery for determining whether or not an internal winning of a winning combination is successful. However, the subject of random lottery to prevent fraud is not limited to this. Random lottery that defines the content of the game, especially various random lottery related to the content that affects the player's profits, triggered by the player's operation Needless to say, the present invention can also be applied.

  In the center of the main body 101 of the slot machine 100 shown in FIG. 1, three reels (a left reel 110, a middle reel 111, and a right reel 112) having a plurality of types of patterns arranged on the outer peripheral surface are stored. It is configured to be able to rotate inside. In this embodiment, each picture is printed on the belt-like member at an appropriate interval (for example, 21 pictures), and this belt-like member is attached to a predetermined circular frame member to constitute each reel 110 to 112. When viewed from the player, approximately three patterns on the reels 110 to 112 are displayed in the vertical direction from the pattern display window 113 so that a total of nine patterns can be seen. Then, by rotating each of the reels 110 to 112, the combination of pictures that can be seen by the player varies. In the present embodiment, three reels are provided in the center of the slot machine 100, but the number of reels and the installation position of the reels are not limited to this.

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

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

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

  In this embodiment, every time the medal insertion button 130 is pressed, a maximum of three are inserted one by one, and when the medal insertion button 131 is pressed, three are inserted. The medal slot 134 is an slot for a player to insert a medal when starting a game. That is, the medal can be inserted electronically by the medal insertion button 130 or 131, or an actual medal can be inserted from the medal insertion slot 134. The payout number display 125 is a display for displaying the number of medals to be paid out to the player as a result of winning a winning combination. The game number display 126 is a display for displaying the number of games during the big bonus game (in the BB game), the number of winnings of a predetermined winning combination, and the like. The stored number display 127 is a display for displaying the number of medals electronically stored in the slot machine 100. The start operation unit 135 is a unit for starting the rotation of the reels 110 to 112, and constitutes a lever-type switch as will be described later. When a desired number of medals is inserted into the medal insertion slot 134 and the start operation unit 135 is operated, an internal lottery of a winning combination and the rotation of the reels 110 to 112 are started.

  The stop button unit 136 is provided with stop buttons 137 to 139. The stop buttons 137 to 139 are button-type switches for individually stopping the reels 110 to 112 that have started rotating by the operation of the start operation unit 135. Note that a light emitter may be provided inside each stop button 137 to 139, and when the stop button 137 to 139 can be operated, the light emitter may be turned on to notify the player. The storage / settlement button 132 settles a medal electronically stored in the slot machine 100 and discharges it to the tray 210 from the medal payout outlet 155, and the four or more sheets inserted into the medal slot 134. This is a button for switching between a storage function for electronically storing up to 50 medals and medals obtained by winning. The medal return button 133 is a button that is pressed to remove a medal when the inserted medal is jammed. The door key 140 is a hole into which a key for unlocking the front door 102 of the slot machine 100 is inserted. The medal payout exit 155 is a payout exit for paying out medals. The medal tray 210 is a container for collecting medals paid out from the medal payout opening 155. In this embodiment, the medal tray 210 employs a tray that can emit light, and may be hereinafter referred to as a tray lamp.

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

<Configuration of control unit>
Next, the configuration of the control unit of the slot machine 100 will be described in detail with reference to FIG. The slot machine 100 includes a main control unit 300 that controls the central part of the game, and a sub-control unit (not shown) that controls various devices in accordance with signals transmitted from the main control unit 300. The sub-control unit performs, for example, processing related to the effects associated with the game, such as control of the effect device 600, but in this embodiment, since it is not directly related to prevention of fraud against random lottery, the description is omitted, and the main control unit 300 will be described.

  The main control unit 300 includes a CPU 310 that is an arithmetic processing unit for controlling the entire main control unit 300, a data bus and an address bus for the CPU 310 to transmit and receive signals to and from each IC and each circuit, It has the structure described below. The clock correction circuit 314 is a circuit that divides the clock oscillated from the crystal oscillator 311 and supplies it to the CPU 310. For example, when the frequency of the crystal oscillator 311 is 12 MHz, the divided clock is 6 MHz. The CPU 310 operates by receiving the clock divided by the clock circuit 314 as a system clock. The CPU 310 is connected to a timer circuit 315 for setting a monitoring cycle for constantly monitoring the states of sensors and switches, which will be described later, and a transmission cycle of motor drive pulses, via a bus. When the power is turned on, the CPU 310 transmits the frequency dividing data stored in the predetermined area of the ROM 312 to the timer circuit 315 via the data bus.

  The timer circuit 315 determines a fixed interrupt time based on the received frequency division data, and transmits an interrupt request to the CPU 310 at each interrupt time. In response to this interrupt request, the CPU 310 executes monitoring of each sensor and transmission of drive pulses. For example, when the system clock of the CPU 310 is set to 6 MHz, the frequency division value of the timer circuit 315 is set to 1/256, and the data for frequency division of the ROM 312 is set to 44, the reference time for this interrupt is 256 × 44 ÷ 6 MHz = 1. It becomes 877 ms and becomes a fixed cycle. In this embodiment, whether or not there is an operation on the start operation unit 135 is checked at this interruption cycle, and the CPU 310 acquires a random number value for random number lottery from a random number generation circuit 317 described later. In other words, this interrupt cycle is the timing for acquiring the random number value.

  Connected to the CPU 310 are a ROM 312 for storing programs for controlling each IC, lottery data used for internal winning lottery, reel stop positions, and a RAM 313 for storing temporary data. Has been. Other storage means may be used for these ROM 312 and RAM 313. The CPU 310 is connected to an input interface 360 for receiving an external signal. The medal acceptance sensor 320, the start operation detection sensor 321, and the stop button are connected to the CPU 310 via the input interface 360 at every interrupt time of the interrupt cycle described above. The states of the sensor 322, the medal insertion button sensor 323, and the settlement / storage switch 324 are detected, and the detection result of each sensor is monitored.

  Two medal acceptance sensors 320 are installed in the passage inside the medal insertion slot 134 and detect whether or not a medal has passed. The start operation detection sensor 321 is installed in the start operation unit 135 and detects a start operation by the player. The stop button sensor 322 is installed in each of the stop buttons 137 to 139 and detects the operation of the stop button by the player. The medal insertion button sensor 323 is installed in each of the medal insertion buttons 130 and 131, and detects an insertion operation when a medal electronically stored in the RAM 313 is inserted as a game medal. For example, when the medal insertion sensor 323 corresponding to the medal insertion button 130 becomes H level, the CPU 310 electronically inserts one stored medal and the medal insertion sensor 323 corresponding to the medal insertion button 131 is H level. When it becomes, three stored medals are electronically inserted. When the medal insertion button 131 is pressed, two are inserted when the number of stored medals is two, and one is inserted when the number is one.

  The settlement / storage switch 324 is provided on the settlement / storage button 132. When the settlement / storage switch 132 is pressed once, the stored medals are settled, and when the settlement / storage switch 132 is pressed again, the storage mode in which the medals to be paid out are stored electronically is set. Each of the above sensors may be a non-contact type sensor or a contact type sensor. The CPU 310 further has an input interface 361 and output interfaces 370 and 371 connected to an address bus via an address decoding circuit 350. The CPU 310 transmits and receives signals to and from external devices via these interfaces.

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

  A random number generation circuit 317 is connected to the CPU 310 via a data bus. The random number generation circuit 317 generates a random number value periodically based on a clock oscillated from the crystal oscillator 316 and generates a latch signal when the latch signal is output from the latch signal output sensor 326. Is used to hold the random number value, and the random number value generated at that time is held. The CPU 310 can acquire the stored random number value by selecting the random number generation circuit 317 via the address decoding circuit 350. The obtained random number value is used for the internal lottery of the winning combination. FIG. 3 is a diagram showing a circuit configuration of the random number generation circuit 317 and a circuit configuration related to random number lottery. The random number generation circuit 317 includes two counter ICs 3171 and 3172. Each of these counter ICs 3171 and 3172 is an 8-bit binary counter, and a random value for 16 bits based on a clock signal oscillated from the crystal oscillator 316, that is, a value from 0 to 65535 is periodically and cyclically. To count. More specifically, each of the counter ICs 3171 and 3172 counts up in synchronization with the rising edge of the clock signal when the clock enable (CCLKEN) is “Low”. When all bits of the counter become “1”, the ripple carry out (RCO) becomes “Low”. As a result, the count value of the counter IC 3172 is incremented by one each time all the bits in the counter IC 3171 become “1”. Note that when the counter clear (CCLR) is set to “Low”, all the bits of the internal register are set to “0” and the count value is reset. In this example, however, the counter clear (CCLR) is always set to “High”. The value is not reset.

  Assuming that the frequency of the clock signal oscillated from the crystal oscillator 316 is 14.3 MHz, the count value makes a round with a period of 4.57 ms. Further, when a latch signal is output from the latch signal output sensor 326, the counter ICs 3171 and 3172 output the count value at that time on each data bus as a random value. More specifically, each of the counter ICs 3171 and 3172 includes an internal register, and the count value is loaded into the internal register and latched at the rising edge of the signal with respect to the register clock (RCLK). When the enable input (G) is set to “Low”, that is, when the chip is selected from the CPU 310 via the address decoding circuit 350, the random number value latched in the internal register is output onto the data bus, It can be acquired by the CPU 310. In this example, the random number value (count value) is overwritten and latched in the internal register every time the signal rises with respect to the register clock (RCLK). However, a plurality of random number values are not sequentially overwritten and latched. When the chip is selected, the latest random number value may be output.

  The latch signal output sensor 326 outputs a latch signal when a start operation is performed on the start operation unit 135 as described later. On the other hand, when a start operation is performed on the start operation unit 135, this is detected by the start operation detection sensor 321, and a detection signal is output to the input interface 360 as a random number acquisition command. The CPU 310 reads the presence / absence of a detection signal from the input interface 360 at the interrupt cycle described above, and if there is a detection signal, acquires the counter value latched in the counter ICs 3171 and 3172 as a random number value. The acquired random number value is temporarily stored in the RAM 313 and used in random number lottery.

  Next, the configuration of the start operation detection sensor 321 and the latch signal output sensor 326 will be described together with the configuration of the start operation unit 135. FIG. 6A is a diagram showing a configuration around the start operation unit 135, and FIG. 6B is an operation explanatory diagram of the start operation unit 135. The start operation unit 135 is configured such that an operation lever 1351 is provided on a hollow support member 1353 so as to be rotatable up and down around a shaft 1352. A disc-shaped stopper 1354 is loosely fitted on the shaft portion of the operation lever 1351, and a coil that constantly biases the operation lever 1351 to the neutral position between the stopper 1354 and a spring receiver 1355 fixed to the shaft portion. A spring 1356 is loaded. Then, when the player presses the spherical end of the left end of the operation lever 1351 downward, the operation lever 1351 is urged by this and the operation lever 1351 rotates (FIG. 6B), thereby compressing the coil spring 1356. Therefore, when the pressing is stopped, the operation lever 1351 returns to the neutral position (FIG. 6A). These configurations and operations are the same as those of the conventional start operation unit.

  On the other hand, a rod-shaped light shielding member 1357 is provided at the right end of the operation lever 1351, and constitutes a moving unit that moves when the operation lever 1351 rotates by being biased by the player's operation. A start operation detection sensor 321 is provided at an intermediate portion of the light shielding member 1357. The start operation detection sensor 321 is an optical sensor, and a detection space is formed between the light emitting unit and the light receiving unit, and detects whether or not the light shielding member 1357 exists in the detection space. When the light shielding member 1357 is present in the detection space (when the operation lever 1351 is in the neutral position), the light from the light emitting unit is blocked by the light shielding member 1357, and thus the light is turned off. On the other hand, as shown in FIG. 6B, when the operation lever 1351 is operated and rotated, and the light shielding member 1357 moves and moves out of the detection space, the light from the light emitting unit reaches the light receiving unit and is turned on. This ON signal is output to the input interface 360 as a start operation detection signal.

  Next, on the right side of the light shielding member 1357, a disk-shaped rotating body 1358 that rotates around the shaft 1359 is provided. On the outer periphery of the rotating body 1358, a plurality of protrusions 1360 are integrally arranged radially at substantially equal intervals in the circumferential direction. When the operation lever 1351 is rotated by being biased by the player's operation, the right end of the light shielding member 1357 interferes with the protrusion 1360 as shown in FIG. Will rotate around. The rotating body 1358 is also provided with a circular slit portion 1361 around the shaft 1359. As shown in the enlarged view of FIG. 6A, a plurality of slits 1361 a are provided in the slit portion 1361 at substantially equal intervals in the circumferential direction, and are moved cyclically by the rotation of the rotating body 1358. The latch signal output sensor 326 is an optical sensor that detects the passage of the slit 1361a as a detected portion. The latch signal output sensor 326 is an optical sensor having the same operation principle as that of the start operation detection sensor 321, and a detection space is formed between the light emitting portion and the light receiving portion, and whether or not the slit 1361a exists in the detection space. Is detected. If the slit 1361a exists in the detection space, the slit 1361a is turned on, and this turned on signal is output to the random number generation circuit 317 as a latch signal. When the slit 1361a is not present, the light from the light emitting unit to the light receiving unit is blocked and turned off. Thus, when the operation lever 1351 is urged by the player's operation, the rotating body 1358 rotates through the light shielding member 1357, and the plurality of slits 1361a pass through the detection space of the latch signal output sensor 326. The latch signal is output a plurality of times from the latch signal output sensor 326 for each start operation by the player. In the present embodiment, a latch signal is output a plurality of times with such a relatively simple mechanism.

  Next, the principle of preventing fraud against random lottery in the slot machine 100 having such a configuration will be described. As described above, the random number generation circuit 317 completes the count of the random number value at a predetermined cycle. In this embodiment, it is 4.57 ms. Therefore, if the start operation can be performed every time several times 4.57 ms, substantially the same random number value is used for the random number lottery, and the lottery result is also the same, which is a cause of fraud. In this embodiment, first, the start operation detection sensor 321 and the latch signal output sensor 326 are configured separately. Then, as described above, a latch signal is output a plurality of times for one start operation, and the random number value latched by the random number generation circuit 317 is updated for each latch signal. Then, the random value to be acquired by the CPU 310 is determined in relation to the timing of the latch signal and the timing at which the CPU 310 reads the latched random number value, that is, the interrupt cycle that is asynchronous with the latch signal timing. For this reason, even if the start operation can be performed every time at the timing matched with the count cycle of the random number generation circuit 317, the same random number value is prevented from being used in the random number lottery, and the above-described fraud is prevented. This point will be described in more detail with reference to FIG.

  FIG. 6C is a timing chart of random number acquisition at the start operation. The left side of the figure shows a timing chart in the case of the Xth start operation, and the right side shows a timing chart in the case of the (X + 1) th start operation. The Xth and X + 1th start operations are the random number generation circuit 317. It is shown that the counting was performed at intervals of T time corresponding to several times the cycle of one cycle. First, paying attention to the X-th start operation, when the player performs a start operation on the start operation unit 135, this is detected by the start operation detection sensor 321 and a detection signal rises. As the detection signal rises, the CPU 310 acquires the random number value held in the random number generation circuit 317 at the next interrupt timing. On the other hand, a latch signal is output from the latch signal output sensor 326 by the rotation of the rotating body 1358 accompanying the start operation, and the random number generation circuit 317 latches a count value that is a random value. This latch signal is a pulse signal that rises a plurality of times as shown in FIG. In the case of the X-th start operation, since the interrupt timing of the CPU 310 has arrived before the second latch signal rises, the CPU 310 determines that the random number value latched by the random number generation circuit 317 when the first latch signal rises. Will get. On the other hand, in the (X + 1) th start operation, the interrupt timing of the CPU 310 after the start operation is detected is larger than the timing at which the start operation is detected after the start operation is detected, and after the second latch signal rises. The interruption time of the CPU 310 has come. Therefore, unlike the X-th case, the CPU 310 acquires the random value latched by the random number generation circuit 317 when the second latch signal rises. Therefore, even if the start operation is performed every T time in the Xth time and the (X + 1) th time, a random number lottery is performed using different random number values. As a result, fraud can be prevented. In this embodiment, optical sensors are used as the start operation detection sensor 321 and the latch signal output sensor 326. However, the present invention is not limited to this, and other types of sensors that cause the above-described action may be used. Needless to say.

<Basic flow>
Next, a description will be given regarding control of the slot machine 100. FIG. 4 is a flowchart showing the basic control of the game in the slot machine 100 of the present embodiment. This main process is performed mainly by the CPU 310, and is repeatedly executed unless a power cut or the like is detected. When the power is turned on while the reset switch (not shown) of the main control unit 310 is pressed, the initialization process of S101 is first executed. In this initialization process, the main control unit 300 and the sub-control unit are initialized. In S102, processing relating to medal insertion is performed. Here, it is checked whether or not medals have been inserted, and the winning line display lamp 120 is turned on according to the number of medals inserted. In S103, processing related to a game start operation is performed. Here, it is checked whether or not the start operation unit 135 has been operated. If it is determined that the start operation unit 135 has been operated, in S104, a valid winning line 114 is determined according to the number of inserted medals. In S <b> 105, the random number value generated by the random number generator 317 by the CPU 310 is acquired from the RAM 313 according to the principle described above.

  In S106, an internal lottery of a winning combination by random number lottery is performed using the random number value acquired in S105 and the winning combination lottery data table stored in the ROM 312. The winning combination lottery data table is a table in which random numbers are assigned to each winning combination within a certain range, and whether or not the winning combination is determined by comparing the acquired random value with the range of random values assigned to each winning combination. Is determined. In the present embodiment, fraudulent acts against random number lottery are prevented by the principle described above. After this internal lottery, for example, other lottery processing such as production lottery can be performed. In S107, a reel stop control table is selected. The reel control table is a table for performing stop control of each of the reels 110 to 112 in accordance with the internal lottery result in S106, and is stored in the ROM 312. In S108, rotation of all reels 110 to 112 is started. In S109, the stop buttons 137 to 139 can be received. When any one of the stop buttons is pressed, the reel corresponding to the pressed stop button is stopped based on the reel stop control table selected in S107. . In S110, a winning determination is performed. Here, when a combination of symbols corresponding to the winning combination is displayed on the activated winning line 114, it is determined that the winning combination is a winning combination. For example, if “bell-bell-bell” is arranged on the validated winning line 114, it is determined that the bell is won. In addition, if “7-7-7” is prepared, it is determined that a BB winning is achieved.

  In S111, if any winning combination with payout is won, the number of medals corresponding to the winning combination is paid out. In S112, a game state control process is executed. In this game state control process, control for shifting the type of game is performed. For example, in the case of winning a BB game, preparation is made so that the BB game can be started from the next time. Prepare to start the game. As described above, one game is completed, and thereafter, the process proceeds by returning to S102 and repeating the above-described processing.

<Interrupt processing>
Next, interrupt processing of the main control unit 300 will be described with reference to FIG. FIG. 5 is a flowchart showing the interrupt process of the main control unit 300, and this process is performed in the above-described interrupt cycle (1.877 ms). Here, the description will focus on processing related to acquisition of random values. In S201, the data of the output port of the input interface 360 is acquired. In S201, it is determined whether or not a start operation has been performed with reference to the data acquired in S201. If no start operation has been performed, the process proceeds to S207 to execute other processes, and one interrupt process is completed. If there is a start operation, the process proceeds to S203, and the latched 8-bit count value is read from the counter IC 3171. In S204, the read count value is stored in a predetermined area of the RAM 313. In S205, the latched 8-bit count value is read from the counter IC 3172. In S206, the read count value is stored in a predetermined area of the RAM 313. The total 16-bit count value stored in the predetermined area of the RAM 313 is acquired by the CPU 310 as a random value in the process of S105 described above, and used for the internal lottery of the winning combination.

Second Embodiment
In the first embodiment, a rotating body 1358 that is rotated by being energized by a player's start operation is adopted to output a latch signal multiple times for one start operation. Thus, the configuration for outputting the latch signal a plurality of times is not limited to this, and various configurations can be employed. Hereinafter, another configuration example for outputting a latch signal a plurality of times will be described with reference to FIG. FIG. 7A is a diagram showing a configuration around the start operation unit 135 in the second embodiment of the present invention. In the figure, the same reference numerals are given to the same components as those of the first embodiment shown in FIG. 6A, and only different components will be described below.

  In the present embodiment, the latch signal is output a plurality of times by constantly vibrating the latch signal output sensor 326. In this embodiment, as shown in FIG. 7B, a latch signal output sensor 326 is mounted on one end of a belt-shaped diaphragm 3261a, and the diaphragm 3261a is vibrated by a vibrator 3261 so that the latch signal output sensor 326 is provided. Vibrate. The configuration of the vibrator 3261 and the diaphragm 3261a may be any configuration as long as the latch signal output sensor 326 can be vibrated within a range described later. For example, a mechanism using a motor, an electromagnetic solenoid, or the like as a drive source can be given. It is done. The vibration direction of the latch signal output sensor 326 is substantially coincident with the moving direction of the end portion of the light shielding member 1357 ′. When the operation lever 1351 is in the neutral position, the light shielding member 1357 ′ can be detected within a range that can be detected. The sensor 326 is vibrated. That is, when the latch signal output sensor 326 vibrates, the detection range also moves. However, when there is no operation with respect to the operation lever 1351, it is vibrated within a range in which no operation is erroneously detected. FIG. 7C is an explanatory diagram thereof. The left side of the figure shows the case where the latch signal output sensor 326 is in the lower limit position, and the right side shows the case where it is in the upper limit position. In either case, the operation lever 1351 is stationary at the neutral position. Yes. The latch signal output sensor 326 is an optical sensor as described above, and the irradiation range of light from the light emitting unit to the light receiving unit is the detection range of the sensor. The detection range in the figure shows a cross section of this light. When the latch signal output sensor 326 is at the lower limit position as shown on the left side of the figure, the detection range is in the area below the range that does not protrude from the width of the light shielding member 1357 ′, and is shown on the right side of the figure. As described above, when the latch signal output sensor 326 is in the upper limit position, the vibration stroke of the latch signal output sensor 326 is set so that the detection range is an upper region of the light shielding member 1357 ′. In order to make the vibration stroke as large as possible, the light shielding member 1357 ′ in the present embodiment is slightly wider.

  Next, with reference to FIG. 7C, the principle in which a latch signal is output a plurality of times for one start operation in the present embodiment will be described. The first diagram from the left in FIG. 7C shows a state in which the latch signal output sensor 326 moves downward, while the operation lever 1351 is in the neutral position and the light shielding member 1357 ′ is stationary. . In this case, the light shielding member 1357 ′ is detected by the latch signal output sensor 326. In this state, when the player performs a start operation and the operation lever 1351 rotates, the end of the light shielding member 1357 ′ rises as shown in the second diagram from the left in FIG. 7D. Start. The latch signal output sensor 326 is at the lower limit position, and the detection range of the latch signal output sensor 326 is out of the light shielding member 1357 ′ by the relative movement between the light shielding member 1357 ′ and the latch signal output sensor 326. As a result, the latch signal output sensor 326 is turned ON and the first latch signal is output.

  In the third diagram from the left in FIG. 7D, the end of the light shielding member 1357 ′ is further elevated, but the latch signal output sensor 326 is also elevated and its detection range has caught up with the light shielding member 1357 ′. It has become. For this reason, the latch signal output sensor 326 detects the light shielding member 1357 'again and is turned OFF. In the fourth diagram (right end) from the left in FIG. 7D, the end of the light shielding member 1357 ′ is further raised to reach the substantially upper limit position, but the latch signal output sensor 326 is lowered again and its detection range. Is detached from the light shielding member 1357 ′ again. For this reason, the latch signal output sensor 326 is turned on again, and the second latch signal is output. As described above, in the present embodiment, the latch signal can be output a plurality of times for one start operation, although the mechanism is relatively simple. In this case, as the vibration period of the latch signal sensor 326 is shortened, more latch signals can be output for one start operation, and the end portion of the light shielding member 1357 ′ can be output by one start operation. The latch signal can be output a plurality of times by sufficiently shortening the vibration period of the latch signal sensor 326 with respect to the time during which the signal moves. The time for moving the end of the light shielding member 1357 ′ varies depending on each start operation. However, since the approximate shortest time can be grasped, the vibration of the latch signal sensor 326 accordingly. What is necessary is just to set a period. In short, it is only necessary to set the vibration cycle and the vibration stroke so that the detection and the detection are repeated a plurality of times with respect to the movement of the end portion of the light shielding member 1357 ′ by one start operation.

<Third Embodiment>
In the first and second embodiments, the latch signal is output a plurality of times for one start operation. However, the timing at which the latch signal is output for each start operation may be different each time. If possible, even when the latch signal is output once for one start operation, the timing for latching the count value of the random number value can be made different, and illegal acts can be prevented. The present embodiment employs a configuration in which the timing at which the latch signal is output for each start operation is changed each time. In this configuration, it is only necessary that the random value can be latched by the first latch signal. Therefore, even if there is a latch signal corresponding to the same start operation after that, it is possible to adopt a configuration in which this is ignored. FIG. 8A is a diagram showing a configuration around the start operation unit 135 in the third embodiment of the present invention. In the figure, the same reference numerals are given to the same components as those in the first embodiment shown in FIG. 6A, and only different components will be described below. The difference is in the rotating body.

  As shown in FIG. 8B, the rotating body 1362 according to the present embodiment is a disk-shaped member that rotates around the shaft 1363, and a plurality of outer peripheral bodies 1358 are provided on the outer periphery thereof in the same manner as the rotating body 1358 according to the first embodiment. The projections 1364 are integrally arranged radially at substantially equal intervals in the circumferential direction. When the operation lever 1351 is rotated by the player's operation, the right end of the light shielding member 1357 interferes with the projections 1364. Thus, it is energized to rotate around 1363. On the other hand, in the case of the present embodiment, a plurality of slits 1365 (two in the figure) constituting the detected portion detected by the latch signal output sensor 326 are provided, and the slits 1365 are rotated by the rotation of the rotating body 1362. Are cyclically moved, but these are arranged at unequal intervals in the circumferential direction of the rotating body 1362. For this reason, the timing at which the slit 1365 is detected by the latch signal output sensor 326 differs depending on the position of each slit 1365 during the start operation. For example, as shown in FIG. 8 (a), when the slit 1365 is positioned in the vicinity of the latch signal output sensor 326, the slit 1365 becomes the latch signal output sensor as soon as the rotating body 1362 rotates with the start operation. Since the signal passes through 326, the latch signal is output immediately. On the other hand, when the start operation is performed in a state where the position of the slit 1365 in FIG. 8A is symmetric with respect to the shaft 1363 (the position on the opposite side), the rotating body 1362 rotates approximately half a half with the start operation. Otherwise, the slit 1365 does not pass through the latch signal output sensor 326. For this reason, the latch signal is output with a slight delay from the time when the start operation is performed. As described above, in the present embodiment, even if each start operation is performed at a certain timing, the output timing of the latch signal is not constant, so that an illegal act can be prevented. In particular, since the amount of rotation and the rotation speed of the rotating body 1362 vary depending on the degree of the player's press on the operation lever 1351 at the start operation, the position of the slit 1365 at each start operation and the slit 1365 are latch signals. The time to reach the output sensor 326 varies, and it is possible to have more variation depending on the output timing of the latch signal. In this embodiment, the output timing of the latch signal can be varied while using a relatively simple mechanism.

  In the present embodiment, the configuration is such that the output timing of the latch signal varies by providing slits 1365 that are detected portions at unequal intervals in the rotator 1362, but the rotator is not necessarily used, and the slits 1365 are not necessarily used. It is also possible to employ various movable members that have a plurality of detected parts as described above and that are urged by the player's operation to cyclically move the detected parts.

<Fourth embodiment>
In the third embodiment, the timing at which the latch signal is output for each start operation is made different every time by employing the rotating body 1362, but in order to make the timing at which the latch signal is outputted in this way different every time. The configuration is not limited to this, and various configurations can be adopted. Hereinafter, another configuration example will be described with reference to FIGS. FIG. 8C is a diagram showing the configuration around the start operation unit 135 in the fourth embodiment of the present invention. In this embodiment, first, unlike the above embodiments, the start operation detection sensor and the latch signal output sensor are set as one sensor 321 ′. That is, the signal output when the sensor 321 ′ is turned on becomes both the detection signal of the start operation and the latch signal. In the present embodiment, an optical sensor is assumed as the sensor 321 ′ similarly to the start operation detection sensor 321 or the latch signal output sensor 326, and the passage of the end portion of the light shielding member 1357 ′ is detected. In the present embodiment, the sensor 321 ′ is mounted on one end of the belt-shaped diaphragm 3211a, and the diaphragm 3211a is vibrated by the vibrator 3211 so that the sensor 321 ′ is constantly vibrated as in the second embodiment. However, unlike the case of the second embodiment, the vibration period is set so that the movement time of the sensor 321 ′ is delayed with respect to the movement time of the end of the light shielding member 1357 ′ by one start operation. Then, the sensor 321 ′ does not overtake the movement of the end portion of the light shielding member 1357 ′. As described above, the time for moving the end portion of the light shielding member 1357 ′ differs for each start operation. However, since the approximate maximum time can be grasped, the sensor 321 ′ is accordingly determined. What is necessary is just to set the vibration period. The other configuration of the start operation unit 135 of the present embodiment is the same as that of the second embodiment, and the vibration direction of the sensor 321 ′ is substantially matched with the moving direction of the end of the light shielding member 1357 ′. As in the case of the second embodiment, the vibration stroke is set within a detectable range of the light shielding member 1357 ′ when the operation lever 1351 is in the neutral position.

  Next, with reference to FIGS. 8D and 8E, a description will be given of the principle that the timing at which the output signal of the sensor 321 'is output each time is different for each start operation. First, the left side of FIG. 8D shows a state in which the sensor 321 ′ moves downward, the operation lever 1351 is in the neutral position, and the light shielding member 1357 ′ is stationary. In this case, the light shielding member 1357 'is detected by the sensor 321', but the detection range is in a lower region of the light shielding member 1357 '. In this state, when the player performs a start operation and the operation lever 1351 is rotated, the end of the light shielding member 1357 'is raised as shown in the right side of FIG. 8D. As a result, the detection range of the sensor 321 ′ deviates from the light shielding member 1357 ′, the sensor 321 ′ is turned on, and a signal that serves as both the start operation detection signal and the latch signal is output. Next, the left side of FIG. 8E shows a state in which the sensor 321 ′ moves upward while the operation lever 1351 is in the neutral position and the light shielding member 1357 ′ is stationary. In this case, the light shielding member 1357 ′ is detected by the sensor 321 ′, but the detection range is in an upper region of the light shielding member 1357 ′, unlike the case of the left side of FIG. In this state, when the player performs a start operation and the operation lever 1351 is rotated, the end portion of the light shielding member 1357 'is raised as shown in the right side of FIG. 8 (e). As a result, the detection range of the sensor 321 ′ deviates from the light shielding member 1357 ′, the sensor 321 ′ is turned on, and a signal that serves as both the start operation detection signal and the latch signal is output.

  8D and 8E, the relative positions of the sensor 321 ′ and the light shielding member 1357 ′ during the start operation are different from each other. In FIG. 8D, the detection range is the light shielding member. In the lower region of 1357 ′, in the case of FIG. 8E, the detection range is located in the upper region of the light shielding member 1357 ′. Therefore, in the case of FIG. 8E, the detection range does not deviate from the light shielding member 1357 ′ unless the end of the light shielding member 1357 ′ moves more than in the case of FIG. If the moving speed of the end portion of 1357 ′ is the same, the timing at which the sensor 321 ′ is turned on is slower in the case of FIG. 8E than in FIG. 8D. For this reason, even if each start operation is performed at a certain timing, the output timing of the signal of the sensor 321 ′ which is a latch signal is not constant, so that illegal actions can be prevented. In short, in the present embodiment, the width of the light shielding member 1357 ′ and the sensor 321 ′ are different so that the output timing of the output signal of the sensor 321 ′ differs depending on the relative position between the sensor 321 ′ and the light shielding member 1357 ′ at the start operation. It is possible to prevent fraud by setting the vibration period. In this embodiment, the output timing of the latch signal can be varied while using a relatively simple mechanism. In this embodiment, the sensor 321 ′ outputs a signal that serves as both a start operation detection signal and a latch signal. However, as in the first to third embodiments, the start operation detection sensor 321 is used. And the latch signal output sensor 326 may be configured separately. In this case, at least the latch signal output sensor 326 may be vibrated as described above.

1 is a perspective view of a slot machine 100 according to an embodiment of the present invention. 3 is a diagram illustrating a configuration of a main control unit 300. FIG. It is the figure which showed the circuit structure relevant to the circuit structure of the random number generation circuit 317, and random number lottery. 4 is a flowchart showing basic control of a game in the slot machine 100. FIG. 5 is a flowchart showing interrupt processing of the main control unit 300. (A) is a diagram showing a configuration around the start operation unit 135, (b) is an explanatory diagram of the operation of the start operation unit 135, and (c) is a timing chart of random number acquisition during the start operation. (A) is a figure which shows the structure around the start operation unit 135 in 2nd Embodiment of this invention, (b) is explanatory drawing of the vibrator 3261, (c) shows the range of the vibration of the sensor 326 for latch signal output. FIG. 4D is a diagram for explaining the operation of the configuration shown in FIG. (A) is a figure which shows the structure around the start operation unit 135 in 3rd Embodiment of this invention, (b) is a figure which shows the rotary body 1362, (c) is the start operation unit 135 in 4th Embodiment of this invention. FIGS. 8A and 8B are diagrams illustrating the configuration of the periphery, and FIGS. 8D and 8E are operation explanatory diagrams of the configuration of FIG. (A) And (b) is explanatory drawing of the conventional start operation unit.

Explanation of symbols

100 slot machine

Claims (9)

In the game stand that determines the contents of the game by the result of random number lottery,
An output means for outputting a random value holding instruction in accordance with a predetermined operation of the player with respect to the game table;
Random number generation means for periodically generating a random value and holding the generated random value when the holding instruction is output from the output means;
Lottery means for obtaining a random number value held in the random number generation means at a predetermined timing, and performing random number lottery based on the obtained random number value,
The output means outputs the holding command a plurality of times for each predetermined operation of the player,
The game table characterized in that the random number generation means holds a random value generated each time the holding instruction is output from the output means. The output means is
A rotating body that rotates by being biased by a predetermined operation of the player and has a plurality of detected parts;
A sensor that detects passage of the rotating body through the detected portion and outputs the holding command based on the detection result;
The game table according to claim 1, further comprising: Furthermore,
A moving unit that is moved by being urged by a predetermined operation of the player;
The output means includes
A sensor that detects whether or not the moving unit is present at a predetermined position, and outputs the holding command when it is detected that the moving unit is not present at the predetermined position;
Vibration means for vibrating the sensor in a predetermined range,
2. The game table according to claim 1, wherein the predetermined range is a range in which the sensor can detect the moving unit when the moving unit is at the predetermined position. In the game stand that determines the contents of the game by the result of random number lottery,
An output means for outputting a random value holding instruction in accordance with a predetermined operation of the player with respect to the game table;
Random number generation means for periodically generating a random value and holding the generated random value when the holding instruction is output from the output means;
Lottery means for obtaining a random number value held in the random number generation means at a predetermined timing, and performing random number lottery based on the obtained random number value,
The output means includes
A movable member that has a plurality of detected parts and is urged by a predetermined operation of the player so as to cyclically move the detected parts;
A sensor that detects passage of the movable member through the detected portion and outputs the holding command based on the detection result;
A gaming table, wherein the plurality of detected parts are arranged at unequal intervals.   The movable member is a rotating body that is rotated by being biased by a predetermined operation of the player, and the plurality of detected parts are arranged at unequal intervals in the circumferential direction of the rotating body. The game table according to claim 4, wherein In the game stand that determines the contents of the game by the result of random number lottery,
An output means for outputting a random value holding instruction in accordance with a predetermined operation of the player with respect to the game table;
Random number generation means for periodically generating a random value and holding the generated random value when the holding instruction is output from the output means;
Lottery means for obtaining a random number value held in the random number generation means at a predetermined timing, and performing random number lottery based on the obtained random number value;
A moving unit that is moved by being urged by the player's operation,
The output means includes
A sensor that detects whether or not the moving unit is present at a predetermined position, and outputs the holding command when it is detected that the moving unit is not present at the predetermined position;
Vibration means for vibrating the sensor in a predetermined range,
The gaming table according to claim 1, wherein the predetermined range is a range in which the sensor can detect the moving unit when the moving unit is at the predetermined position. According to a predetermined operation of the player, comprising: a second output means for outputting a random number value acquisition command held in the random number generation means to the lottery means;
7. The lottery means acquires a random value held in the random number generation means at the predetermined timing after the acquisition command is output from the second output means. The game stand as described in any one.   The game table according to claim 7, wherein the predetermined timing is determined at a predetermined fixed period. Furthermore,
A plurality of reels that are given multiple types of patterns and are driven to rotate,
A start switch for starting rotation of the reel;
A stop switch provided for each of the reels, for individually stopping the rotation of the reels;
Winning determination means for determining a winning based on whether or not the combination of the patterns displayed by the reel at the time of stoppage is a predetermined combination of patterns,
The game machine according to claim 1, wherein the output unit outputs the holding command in response to an operation on the start switch.

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