JP6315521B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine such as a slot machine or a pachinko machine, and particularly to a gaming machine including a display device such as a liquid crystal display device.

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

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

JP, 2006-308632, A It is possible to select either the power saving priority mode or the image quality priority mode. In the power saving priority mode, level correction is performed so as to reduce the change in luminance of the image displayed on the display panel. .

  In many gaming machines, by changing or flashing the luminescent color of the electrical decoration device, outputting sound such as sound effects and music from the speaker, and displaying a predetermined video (moving image) on the liquid crystal display device Directing.

  By the way, recently there has been a demand for power saving, and the halls in operation need to cooperate in power saving. Therefore, it is desirable to give the game machine a power saving function.

  An object of this invention is to provide the gaming machine which can reduce the power consumption of the display apparatus used for production.

The present invention relates to a main board that executes control related to a game including an internal lottery process, a sub board that receives a command from the main board and executes processing related to an effect, and a screen related to the effect based on the control of the sub board. In a gaming machine comprising a display device for displaying
The screen is composed of a plurality of pixels (pixels), and each of the plurality of pixels includes three primary colors of red data, green data, and blue data.
A drawing buffer that stores the plurality of pixels; a drawing unit that writes the plurality of pixels to the drawing buffer based on control of the sub-substrate; a pixel information acquisition unit that reads the plurality of pixels from the drawing buffer; An average value calculation unit that calculates an average value for each of the red data, the green data, and the blue data for the plurality of pixels, and a predetermined correction coefficient based on the average value and a predetermined threshold value A correction coefficient calculation unit, a correction unit that compares the average value obtained by the average value calculation unit with the threshold value, and corrects the plurality of pixels read using the correction coefficient based on a result of the comparison; A redrawing unit that writes the plurality of pixels corrected by the correction unit to the drawing buffer.

  For example, the correction coefficient is set so that an average of the plurality of pixels approaches the threshold value by the correction.

  A threshold value storage unit that stores a plurality of different threshold values in advance, a scene determination unit that determines the type of the screen displayed on the display device based on the command, and the threshold value based on a determination result of the scene determination unit A threshold selection unit that selects any of the plurality of thresholds from the storage unit may be provided.

  A scene determination unit that determines the type of the screen displayed on the display device based on the command may be provided, and the correction coefficient may be changed based on a determination result of the scene determination unit.

  According to the present invention, an average value is obtained for the plurality of pixels of the drawing buffer, a predetermined correction coefficient is obtained based on the average value and a predetermined threshold value, the average value is compared with the threshold value, and the comparison is performed. Since the correction of the plurality of pixels is performed using the correction coefficient based on the result of the above, the data of the plurality of pixels can be brought close to the threshold by the correction, and the luminance of the pixels can be adjusted appropriately. As a result, the screen can be prevented from being too bright or too dark compared to the threshold value, and the power consumption of the display device can be reduced.

It is a front view of the slot machine which shows the state which closed the front door. It is a front view of the slot machine which shows the state which opened the front door 180 degree | times. It is a block diagram of a slot machine. It is a flowchart of the gaming process of the slot machine. It is a block diagram of VDP (display apparatus control part). It is a block diagram of the part which concerns on the power-saving correction process of the sub board | substrate concerning embodiment of invention. It is a flowchart of the power-saving correction process which concerns on embodiment of invention. It is a flowchart of the flag setting process which concerns on embodiment of another invention. It is another flowchart of the flag setting process which concerns on embodiment of another invention. It is another flowchart of the flag setting process which concerns on embodiment of another invention. It is a flowchart of the caution display process which concerns on embodiment of another invention.

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

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

  Further, a start switch 134 for starting a game is provided at the lower left of the game display unit 131, and three stop switches 140 are provided corresponding to the three spinning cylinders. A medal payout port 135 is provided at the center of the lower end of the front door. A liquid crystal display device LCD is provided above the game display unit 131. Arch lamps AH are provided on both sides thereof. The arch lamp AH performs a predetermined effect through blinking of a light emitting element provided in the arch lamp AH (in the following description, the arch lamp AH may be referred to as “lighting device”).

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

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

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

FIG. 3 shows a functional block diagram of the slot machine 100 according to the embodiment of the invention.
In this figure, the display about the power supply system is omitted. Although not shown, the slot machine includes a power supply unit for generating a DC power supply (+5 V or the like) from a commercial power supply (AC 100 V).

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

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

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

  The main board 10 is paid out from a bet switch BET, a start switch 134, a stop button 140, a reel unit (including a reel driving device) 203, a reel position detection circuit 71, a hopper driving unit 80, a hopper 81 and a hopper 81. A medal detection unit 82 for counting the number of medals (these constitute the hopper device 121 described above) is connected. Peripheral substrates (device control substrates) such as a speaker substrate 201 and an LED substrate 202 are connected to the sub substrate 20. The peripheral board is controlled by the sub-board 20 and produces effects mainly by video, light, and sound. In addition, a liquid crystal display device LCD is connected to the sub-board 20. The sub-board 20 incorporates a VDP (graphic display processor, display device controller) that is a control device for the liquid crystal display device LCD.

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

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

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

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

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

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

  The internal lottery means 1200 performs an internal lottery in which the player determines whether or not the winning combination is based on a start signal from the start switch 134. That is, a lottery table selection process for selecting a lottery table (not shown) stored in a memory (not shown) of the main board 10, a random number determination process for determining the winning of a random number obtained from the random number generation means 1050, The lottery flag setting process for setting a flag to that effect when a big win or the like is won by the determination result is performed.

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

  In the random number determination process, a random value (lottery random number) is acquired from the random number generation means (not shown) for each game based on a start signal from the start switch 134, and the lottery table is referred to for the acquired random value. Then, it is determined whether or not the winning combination is won.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  By the way, the sub board | substrate 20 is provided with VDP (display apparatus control part) which controls liquid crystal display device LCD. The sub board 20 controls the VDP based on the command received from the main board 10 and displays a predetermined screen.

  FIG. 5 is a schematic diagram of the structure of the VDP. The VDP includes an interface I / F, a drawing engine E1 that draws an image according to a read control command (this control command is generated by the CPU of the sub-board 20), a video memory VRAM that stores the drawn image, and a video memory A display engine E2 is provided which reads an image stored in the VRAM and sends it to the liquid crystal display device LCD. Each of these elements is connected to an internal bus BUS so that data can be read from and written to each other. The interface I / F can receive data such as commands from the CPU and can also output an interrupt signal from the display engine E2 or the like to the CPU. This VDP can draw and display 60 frames per second at an XGA size resolution (1024 × 768 pixel resolution), for example.

  When drawing and displaying at 60 frames per second (= 60 fps), the time for one frame is 16.67 ms. This is called a frame time.

  The liquid crystal display device LCD is controlled in three stages: drawing data (including commands for the liquid crystal display device, moving image decoding information, etc.), drawing execution based on the drawing data, and display execution of the drawn image. That is, a command (drawing data) is sent to the VDP, the drawing engine E1 of the VDP executes drawing, and the display engine E2 displays an image on the liquid crystal display device LDC. These three stages of processing are executed in parallel (independently).

  FIG. 6 is a block diagram of a drawing processing apparatus according to the embodiment of the invention. This figure is a functional block diagram of processing according to an embodiment of the invention performed by a VDP (display device controller) and a CPU of the sub-board 20.

  A drawing buffer 300 stores screen data to be displayed on the liquid crystal display device LCD. The drawing buffer 300 corresponds to the video memory VRAM in FIG. The screen of the liquid crystal display device LCD is composed of a plurality of pixels (for example, 1024 × 768 pixels). Each of the plurality of pixels includes three primary colors of red data, green data, and blue data. Unless otherwise specified, each of the plurality of pixels is composed of data of three primary colors.

  A drawing unit 301 writes a plurality of pixels which are predetermined screen data according to control of the sub-board 20, that is, red data, green data, and blue data of the three primary colors into the drawing buffer 300. Since the drawing process of the drawing unit 301 is publicly known, a description thereof will be omitted. The drawing unit 301 corresponds to the drawing engine E1 of FIG.

  Reference numeral 302 denotes a pixel information acquisition unit that reads a plurality of pixels from the drawing buffer 300. The pixel information acquisition unit 302 corresponds to the drawing engine E1 in FIG. However, since the reading of the plurality of pixels here is for redrawing described later, the drawing engine E1 does not necessarily have the function. In addition to the elements shown in FIG. 5, for example, a correction engine (not shown) may be provided to cause the pixel information acquisition unit 302 to perform processing.

  Reference numeral 303 denotes an average value calculation unit that calculates an average value for each of the read data for each of red data, green data, and blue data. The average value calculation unit 303 corresponds to the drawing engine E1 in FIG. 5 or the correction engine (not shown).

  A correction coefficient calculation unit 304 obtains a correction coefficient based on an average value of red data, an average value of green data, an average value of blue data, and a predetermined threshold value obtained for a plurality of read pixels. . The correction coefficient calculation formula will be described later. The correction coefficient calculation unit 304 and the average value calculation unit 303 correspond to the drawing engine E1 in FIG. 5 or the correction engine (not shown).

  305 compares the average value of the red data, the average value of the green data, and the average value of the blue data obtained for the plurality of read pixels with a predetermined threshold, and based on the comparison result, A correction unit that corrects each of a plurality of pixels read using an equation and a correction coefficient. The formula used for correction will be described later. The correction unit 305 corresponds to the drawing engine E1 in FIG. 5 or the correction engine (not shown).

  Reference numeral 306 denotes a redrawing unit that writes a plurality of pixels corrected by the correction unit 305 to the drawing buffer 300. The redrawing unit 306 corresponds to the drawing engine E1 in FIG. The drawing unit 301 and the redrawing unit 306 differ depending on whether data to be drawn (a plurality of pixels to be written) is before correction or after correction, but the other is the same.

  A scene determination unit 307 determines the type of screen displayed on the liquid crystal display device LCD based on a command from the main board 10.

  For example, the screen type (scene) is determined according to the command. Some commands notify the sub-board 20 of winning information of the main board 10. The sub-board 20 performs a predetermined effect according to the winning situation. The command for notifying winning information includes the contents of the winning combination (reply, AT, etc.), the winning state of the lottery flag (regular bonus, big bonus, etc.), and the like. It can also be seen that the command is not won (unauthorized). The scene determination unit 307 determines the type (scene) of the screen based on, for example, the contents of the winning combination, the winning state of the lottery flag, and the information on the incorrect winning.

  Alternatively, the scene determination unit 307 may determine the type (scene) of the screen that is actually displayed, such as an animation with intense motion, an animation with slow motion, or a still image. This can be determined based on the command. In addition, the determination can also be made by monitoring the operation of the drawing unit 301.

  A threshold storage unit 308 stores a plurality of different thresholds in advance. The threshold value includes values of the three primary colors such as RGB (127, 127, 127). The threshold values of the three primary colors may be the same or different values. Alternatively, one numerical value may be used as the threshold value. For example, an average value of three values of RGB (127, 127, 127) ((red threshold + green threshold + blue threshold) / 3) = 127 may be set as the threshold. The threshold value is a value approximately in the middle of the range that the luminance data can take (luminance range: 0 to 255). By using such a threshold value, the luminance of each pixel of the liquid crystal display device LCD can be adjusted so as not to be too bright and too dark. As a result, the brightness of the entire screen of the liquid crystal display device LCD and its power consumption can be adjusted appropriately.

  The threshold storage unit 308 stores a different threshold for each type of screen. For example, TH0, TH1, and TH2 are stored. These TH0, TH1, and TH2 are either threshold RGB (127, 127, 127) as described above or an average value of thresholds ((red threshold + green threshold + blue threshold) / 3) = 127, respectively. Indicates. These three threshold values respectively correspond to the contents of the winning combination, the winning state of the lottery flag, and the incorrect winning, which are types of screens. Alternatively, it supports animations with intense motion, slow animations, and still images.

  Reference numeral 309 denotes a threshold selection unit that selects one of a plurality of thresholds from the threshold storage unit 208 based on the determination result of the scene determination unit 307. For example, one of the thresholds TH0, TH1, and TH2 is selected based on the correspondence relationship and is provided to the average value calculation unit 303.

  The operation of the apparatus according to the embodiment of the invention will be described with reference to the flowchart of FIG.

  The processing in FIG. 7 is performed after the drawing unit 301 completes drawing in the drawing buffer 300 and before reading by the display engine E2.

S10: Obtain pixel information for the resolution.
The pixel information acquisition unit 302 acquires pixel information (color information) for the resolution of the screen of the liquid crystal display device LCD from the drawing buffer 300. For example, if one screen is 1024 × 768 pixels, pixels from coordinates (1,1) to (1024,768) are read out. For example, it is assumed that red, green, and blue data of coordinates (1, 1) are 8 bits, and are 255, 128, and 0, respectively. Hereinafter, this is expressed as DATA (1, 1) = RGB (255, 128, 0). According to this notation, DATA (i, j) = RGB (R (i, j), G (i, j), B (i, j)). However, 1 ≦ i ≦ 1024, 1 ≦ j ≦ 768, R (i, j), G (i, J), and B (i, j) are integers of 1 to 255 (each color data is 8 bits) To do).

S11: An average value of a plurality of pixels is calculated.
The average value calculation unit 303 obtains the average value of the pixels acquired by the pixel information acquisition unit 302. For example, if it is 1024 × 768 pixels, the average value of all of them is obtained. The average value is obtained for each of RGB. Assuming 1 ≦ i ≦ 1024 and 1 ≦ j ≦ 768, the average of R (i, j), G (i, J), and B (i, j) is obtained. The obtained average values are Rm, Gm, and Bm.

  It should be noted that the target for obtaining the average value may be a partial area instead of the entire screen. For example, an average value may be obtained for an area (center part) that the player will pay most attention to.

S12: Determine whether correction is necessary.
The correction unit 305 compares the average value calculated by the average value calculation unit 303 with the threshold value selected by the threshold value selection unit 309, and determines whether correction is necessary.

  The embodiment of the invention is for reducing the power consumption of the liquid crystal display device LCD. Since the method is slightly different depending on the type of the liquid crystal display device LCD, a description will be added for each type.

  First, the type of liquid crystal display device will be described.

  In the first type, a voltage is applied to an internal electrode of the liquid crystal display device (which is provided for each pixel and switches between lighting / non-lighting of the pixel, lighting means that the light of the backlight is transmitted). This is a “normally black” liquid crystal panel (liquid crystal display device) that has the lowest transmittance in the absence. In the normally black type, if the luminance is lowered, the power consumption of the electrodes and the driving circuit for driving the electrodes can be reduced. Therefore, the power can be saved in the liquid crystal display device by reducing the luminance. If the current flowing through the electrodes and the drive circuit is reduced, power is saved. In the normally black type, reducing the brightness leads to power saving. For example, when R = G = B = 0, this power saving effect is maximized, but it is possible to achieve some power saving effect only by reducing the initial luminance by several percent.

  The second type is a “normally white” liquid crystal panel (liquid crystal display device) that maximizes the transmittance when no voltage is applied to the internal electrodes of the liquid crystal display device. In the normally white type, contrary to the normally black type, the power consumption of the electrode and the drive circuit for driving the electrode can be reduced by increasing the luminance. For example, when R = G = B = 255, the power saving effect is maximized, but it is possible to achieve some power saving effect even if the initial luminance is increased by several percent.

  A procedure for determining whether or not correction is necessary will be described.

[For normally black]
The closer each RGB element of each pixel is to 255, the brighter the color is (if all 255, white), the power consumption increases by drawing white. Therefore, when the average values Rm, Gm, and Bm are compared with a predetermined threshold value (threshold values selected by the threshold value selection unit 309, for example, RGB (127, 127, 127)), and the average value exceeds the threshold value, The pixel information (color information) is corrected (lowered in level) for each of the plurality of pixels according to the exceeding ratio.

  For example, when three conditions of Rm> 127, Gm> 127, and Bm> 127 are satisfied, it is determined that correction is necessary (YES). Alternatively, when two conditions are satisfied, it may be determined that correction is necessary (YES) when any one of the conditions is satisfied.

  When the threshold value is one value ((red threshold value + green threshold value + blue threshold value) / 3) = 127, this threshold value and the average value of the average values Rm, Gm, Bm = ((Rm + Gm + Bm) / 3 ).

  The correction unit 205 compares the average value with a predetermined threshold and performs correction based on the result of this comparison (see the description of S14 below). Rm> 127, Gm> 127, Bm> 127 The condition is satisfied (or two of them are satisfied, or any one of the conditions is satisfied), or the average value of average values Rm, Gm, and Bm> ((Rm + Gm + Bm) / This corresponds to the establishment of 3).

  RGB (127, 127, 127) in the example of the threshold is an example of the threshold, and one is selected from the plurality of thresholds as described above. Here, it is assumed that TH0 <TH1 <TH2. When these TH0, TH1, and TH2 have threshold values for the three primary colors as RGB (127, 127, 127), for example, red TH0 <red TH1 <red TH2, green TH0 <green TH1 < Green TH2, blue TH0 <blue TH1 <blue TH2. Further, when the threshold value is one value such as ((red threshold + green threshold + blue threshold) / 3) = 127, TH0 <TH1 <TH2 is, for example, 127 <159 <191. become.

  Among TH0 <TH1 <TH2, there is a high possibility that correction is performed when TH0 is selected, and there is a low possibility that correction is performed when TH2 is selected. Assuming that the screen to be displayed is designed in advance to appeal to the player most in its original state, the screen type (scene) that should be appealed to the player may be corrected as little as possible. desirable. Therefore, TH0, TH1, and TH2 are associated with a scene that does not need to be appealed so much, a scene that should be appealed, and a scene that requires appeal. As a result, it is possible to reduce the possibility that the correction is performed in a scene in which appeal is essential. For example, TH0, TH1, and TH2 are associated with each of the unsuccessful, role winning, and bonus winnings, and TH0, TH1, and TH2 are associated with each of the still image, slowly moving animation, and intensely moving animation.

[For normally white]
The closer the RGB elements of each pixel are to 0, the darker the color becomes (if all are 0, black), and the power consumption increases by drawing black. Therefore, when the average values Rm, Gm, Bm are compared with a predetermined threshold value (threshold values selected by the threshold value selection unit 309, for example, RGB (127, 127, 127)), and the average value is below the threshold value, The pixel information (color information) is corrected for each of the plurality of pixels in accordance with the lower ratio (the level is increased).

  For example, when three conditions of Rm <127, Gm <127, and Bm <127 are satisfied, it is determined that correction is necessary. Alternatively, when two conditions are satisfied, it may be determined that correction is necessary when any one of the conditions is satisfied.

  When the threshold value is one value ((red threshold value + green threshold value + blue threshold value) / 3) = 127, this threshold value and the average value of the average values Rm, Gm, Bm = ((Rm + Gm + Bm) / 3 ).

  The correction unit 205 compares the average value with a predetermined threshold value, and performs correction based on the result of this comparison (see the description of S14 below). Rm <127, Gm <127, Bm <127 The condition is satisfied (or two of them are satisfied, one of the conditions is satisfied), or the average value of the average values Rm, Gm, Bm <((Rm + Gm + Bm) / 3 ) Is established.

  If the threshold is selected from TH0, TH1, and TH2, and TH0> TH1> TH2, it is most likely that correction is performed when TH0 is selected, and TH2 is selected. It is unlikely that correction will be performed when As in the case of normally black, TH0, TH1, and TH2 are associated with a scene that does not need to be appealed so much, a scene that should be appealed, and a scene that requires appeal.

S13: A correction coefficient is calculated.
The correction coefficient calculation unit 304 calculates a correction coefficient based on the average value calculated by the average value calculation unit 303 and the threshold value selected by the threshold value selection unit 309.

[For normally black]
The correction coefficient is a coefficient for suppressing the luminance of the screen that exceeds the threshold to about the threshold.

For example, when the average value Rm = 255, Gm = 255, Bm = 255, and the threshold value is RGB (127, 127, 127), the correction coefficient is as follows.
(Correction coefficient) = (Average value of threshold) / (Average value of pixel)
= ((Red threshold + green threshold + blue threshold) / 3) / ((Rm + Gm + Bm) / 3)
= 127 ÷ 255 ≒ 0.5

For example, when the average value Rm = 191, Gm = 127, Bm = 127, and the threshold value is RGB (127, 127, 127), the correction coefficient is as follows.
(Correction coefficient) = (Average value of threshold) / (Average value of pixel)
= ((Red threshold + green threshold + blue threshold) / 3) / ((Rm + Gm + Bm) / 3)
≒ 127 ÷ 148 ≒ 0.86

[For normally white]
The correction coefficient is a coefficient for increasing the brightness of the screen that is below the threshold to about the threshold.

For example, when the average values Rm = 63, Gm = 63, and Bm = 63, and the threshold values are RGB (127, 127, 127), the correction coefficients are as follows.
(Correction coefficient) = (Average value of threshold) / (Average value of pixel)
= ((Red threshold + green threshold + blue threshold) / 3) / ((Rm + Gm + Bm) / 3)
= 127 ÷ 63 ≒ 2

For example, when the average values Rm = 31, Gm = 31, and Bm = 63, and the threshold values are RGB (127, 127, 127), the correction coefficients are as follows.
(Correction coefficient) = (Average value of threshold) / (Average value of pixel)
= ((Red threshold + green threshold + blue threshold) / 3) / ((Rm + Gm + Bm) / 3)
≒ 127 ÷ 42 ≒ 3

  Note that when the average values Rm = 0, Gm = 0, and Bm = 0, the correction coefficient cannot be calculated. However, since such a screen is not actually possible, there is no problem.

S14: The pixel information is corrected.
The correction unit 305 performs correction for each pixel based on the correction coefficient calculated by the correction coefficient calculation unit 304.

[For normally black]
Correction is performed based on the following equation.

(Red data after correction) = (Red data before correction) x Correction coefficient (Green data after correction) = (Green data before correction) x Correction coefficient (Blue data after correction) = ( Blue data before correction) x correction coefficient

  When correction is performed using the correction coefficient = 0.5 in the above example, the average values Rm = 255, Gm = 255, and Bm = 255 become the average values Rm = 127, Gm = 127, and Bm = 127, which are the same as the threshold values. become.

  When correction is performed using the correction coefficient = 0.86 in the above example, the average values Rm = 191, Gm = 127, and Bm = 127 become the average values Rm = 164, Gm = 109, and Bm = 109. The average of the average values Rm, Gm and Bm is 127.

[For normally white]
Correction is performed based on the following equation.

(Red data after correction) = (Red data before correction) x Correction coefficient (Green data after correction) = (Green data before correction) x Correction coefficient (Blue data after correction) = ( Blue data before correction) x correction coefficient

  When correction is performed using the correction coefficient = 2 in the above example, the average values Rm = 63, Gm = 63, and Bm = 63 become the average values Rm = 126, Gm = 126, and Bm = 126, which are almost the same as the threshold values. Become.

  When correction is performed using the correction coefficient = 3 in the above example, the average values Rm = 31, Gm = 31, and Bm = 63 become the average values Rm = 92, Gm = 92, and Bm = 189. The average of Rm, Gm and Bm is 124. Near the threshold.

S15: The redrawing unit 306 writes the pixel corrected by the correcting unit 305 into the drawing buffer 300. At this time, overwriting is performed.

  The screen composed of the redrawn pixels is read by the display engine E2 and displayed on the liquid crystal display device LCD.

  According to the embodiment of the present invention, pixels that deviate from the threshold value are corrected to a level close to the threshold value, so that the brightness of the entire screen can be set appropriately and power consumption can be suppressed.

  In the case of normally black, a screen that is too bright can be returned to an appropriate brightness of the threshold level. When an image close to white is to be drawn, conversion is performed so as to suppress white as a whole, so that the appearance is not so uncomfortable and power consumption can be suppressed.

  In the case of normally white, a screen that is too dark can be returned to an appropriate brightness of the threshold level. It is possible to make the screen easier to see and to reduce power consumption.

  Note that the correction coefficient may be changed based on the output of the scene determination unit 307 instead of or together with the selection of the threshold value. For example, the above correction coefficient is used as it is in the case of an unsuccessful election, but the correction range by the correction coefficient is reduced (halved) in the case of a winning combination or bonus, and the above correction coefficient is used as it is in the case of a still image. However, the range of correction by an animation correction coefficient with a slow motion or an animation with a strong motion may be reduced (halved).

  In the above description, a liquid crystal display device is taken as an example of a display device. However, embodiments of the present invention may include other types of display devices such as a display device using an LED, an organic EL display device, a cathode ray tube, and the like. It can also be applied to. About these, the process similar to the case of the normally black may be performed.

  The embodiment of the present invention can also be applied to display control of an electric decoration device such as an arch lamp AH controlled by the LED substrate 202. Since the illumination device includes a plurality of light emitting diode groups that emit three primary colors (RGB), which correspond to the pixels of the liquid crystal display device LCD, the same processing as in the case of the normally black is performed in this case as well. Just do it. That is, a reference value is set for the luminance value of each of the light emitting diodes that emit light of the three primary colors (RGB), and the luminance is suppressed by multiplying the three primary colors by a specific coefficient if it is higher than that.

  In addition, according to the embodiment of the present invention, there is an effect of reducing the burden that high luminance gives to the eyes of the player. Further, the processing described below can also prevent the player from placing a burden on the eyes even when light emission with high luminance is performed.

  That is, a flag related to the glare of light emission of the electrical decoration device is prepared corresponding to the luminance data of light emission of the electrical decoration device (display device), and a caution display is displayed so as not to stare at the light emission when the flag is set. To do.

  8 to 10 are flowcharts for setting a flag related to glare.

  In FIG. 8, a threshold value (reference value) is set in the luminance data, and a flag relating to dazzling is set when the threshold value is higher than the threshold value.

S20: The brightness data (pixel information) of the illumination device is acquired.
The illumination device includes a plurality of light emitting diode groups that emit three primary colors (RGB) therein. The luminance data of the illumination device is luminance data (drive current value) of the light emitting diodes for each group. As in the case of the liquid crystal display device, DATA (i, j) = RGB (R (i, j), G (i, j), B (i, j)). i and j are determined according to the number of pairs of light emitting diodes.

S21: An average value of a plurality of pixels is calculated.
The average value of the pixels acquired in S20 is obtained. The obtained average values are Rm, Gm, and Bm.

  In addition, it is good also considering the object which calculates | requires an average value as the one part area | region instead of the whole electrical decoration apparatus. For example, an average value may be obtained for an area that the player will pay most attention to.

S22: It is determined whether the threshold value is exceeded.
The threshold is a value approximately in the middle of the range that the luminance data can take. By using such a threshold value, the player can be alerted when the brightness is too bright. The contents of the comparison process have been described above.

  In addition, threshold values are determined for each of the three primary colors (RGB), and Rm, Gm, and Bm are compared with those average values, and when any of them is exceeded (or when all are exceeded), S23 is executed. You may do it.

S23: A flag related to glare is set.
A caution display is performed based on the set flag (see FIG. 11).

  FIG. 9 sets a threshold value (reference value) for the blinking interval of electrical decorations and the number of repetitions, and sets a flag based on the threshold value.

S30: The blinking interval of the illumination device is acquired.
The lighting device may blink to attract the player's interest and enhance the effect of the effect. Whether or not it is blinking can be obtained by analyzing luminance data of the illumination device or by monitoring a drive signal of the illumination device.

S31: Count the number of repetitions of a specific blinking interval.
The presence / absence of repetition of a specific blinking interval can be obtained by analyzing luminance data of the lighting device or by monitoring a driving signal of the lighting device.

S32: It is determined whether the blinking interval and the count value obtained in S30 and S31 exceed a predetermined threshold.
The threshold value is an interval that may increase the burden on the player's eyes for the blinking interval, and the number of repetitions is the number of times that the burden on the player's eyes may increase. For example, the threshold for the blinking interval is 36 to 60 ms, and the threshold for the number of repetitions is 10. By using such a threshold value, it is possible to call attention to the player at the time of performance that may increase the burden on the eyes.

S33: A flag related to glare is set.
A caution display is performed based on the set flag (see FIG. 11).

  In FIG. 10, a flag is attached in advance to luminance data relating to an effect that may increase the burden on the eyes, and a flag relating to glare is set based on the flag. When the luminance data is read, the flag is also read. It is assumed that the luminance data flag is attached to the luminance data in advance by the same processing as in FIGS. 8 and 9, for example.

S40: Check the brightness data flag of the lighting device.

S41: It is determined whether the flag has been set based on the process of S40. If the flag is set, the process of S42 is performed.

S42: A flag related to glare is set.
A caution display is performed based on the set flag (see FIG. 11).

  FIG. 11 is a flowchart of the caution display process based on the flags relating to the dazzle set by the processes of FIGS.

S50: It is determined whether or not a flag relating to glare is set. If the flag is set, the process of S51 is performed.

S51: A caution display is performed.
For example, a display such as “Let's keep watching light for a long time” is performed on the liquid crystal display device LCD. Alternatively, a caution display lamp (not shown) provided in the vicinity of the illumination device is blinked. This caution display lamp is, for example, a lamp provided in the vicinity of the illumination device, and a cautionary note such as "Let's keep watching light for a long time" is written on the side. .

  According to the processing of FIGS. 8 to 11, there is an effect that the burden on the eyes of the player due to the blinking of the illumination device is reduced. Corresponding to the flashing data and / or luminance data of the lighting of the illumination device, a caution display can be given to the player so as not to stare at the light.

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

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

DESCRIPTION OF SYMBOLS 10 Main board | substrate 20 Sub board | substrate 300 Drawing buffer 301 Drawing part 302 Pixel information acquisition part 303 Average value calculation part 304 Correction coefficient calculation part 305 Correction part 306 Redrawing part 307 Scene determination part 308 Threshold storage part 309 Threshold selection part LCD Liquid crystal display device (Display device)

Claims (2)

A main board for executing control related to a game including an internal lottery process for determining whether or not a plurality of types of winning combinations including bonuses and small roles are successful, a sub board for receiving a command from the main board and executing a process relating to effects, In a gaming machine provided with an effect device that executes the effect based on the control of the sub-board ,
The stage device includes a plurality of elements,
An effect determination unit for determining the type of effect executed by the effect device;
An acquisition unit for acquiring luminance information of a plurality of the elements;
A control unit that controls the plurality of elements based on the acquired luminance information;
An average value calculation unit for obtaining an average value of luminance for the plurality of acquired elements;
The control unit compares the average value with a predetermined threshold value, and when the average value exceeds the threshold value, a plurality of the elements so that the luminance of the plurality of elements does not exceed the threshold value. To reduce the brightness of
A plurality of the threshold values are determined according to the type of effect,
The plurality of threshold values are determined in accordance with a combination in which a threshold value determined by an effect executed in response to determination of a combination that can acquire a game medium for a player over a plurality of games is different from the combination. A gaming machine characterized by being set to be higher than a threshold value set by an effect to be executed . A main board for executing control related to a game including an internal lottery process for determining whether or not a plurality of types of winning combinations including bonuses and small roles are successful, a sub board for receiving a command from the main board and executing a process relating to effects, In a gaming machine provided with an effect device that executes the effect based on the control of the sub-board ,
The stage device includes a plurality of elements,
An effect determination unit for determining the type of effect executed by the effect device;
An acquisition unit for acquiring luminance information of a plurality of the elements;
A control unit that controls the plurality of elements based on the acquired luminance information;
An average value calculation unit for obtaining an average value of luminance for the plurality of acquired elements;
The control unit compares the average value with a predetermined threshold value, and when the average value exceeds the threshold value, a plurality of the elements so that the luminance of the plurality of elements does not exceed the threshold value. To reduce the brightness of
A plurality of correction widths are defined,
A plurality of correction widths are determined such that a combination different from the combination in the correction width determined by the effect executed in response to the determination that a player can acquire a game medium over a plurality of games. A gaming machine characterized in that it is determined to be lower than a correction range determined in accordance with the performance to be executed .

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