JP2991650B2 - Slot machine - Google Patents

Abstract

PURPOSE: To raise the probability of winning the next large bonus after winning, to increase the chance of continuous winning and to improve a game property full of variety by providing a sub drawing means for performing sub drawing under the condition that a prize is won in a winning judgement means. CONSTITUTION: A random number drawing means 36 draws one random number value from random numbers successively generated from a random number generation means 35, whether or not the drawn random number value is included in a prescribed area set beforehand in the entire area is judged in the winning judgement means 31, and when it is included, the large bonus is won in the area of the large bonus for instance. Then, the sub drawing means 34 performs the sub drawing under the condition that the winning of the large bonus is judged in the winning judgement means 31, and when the prize is won in the sub drawing, a probability change means 33 changes the area set beforehand in the entire area to be taken by the random number values successively generated from the random number generation means 35. Thus, the winning probability of the large bonus is raised and the chance of the continuous winning is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slot machine and, more particularly, to a method of changing a winning probability after winning.

[0002]

2. Description of the Related Art A conventional slot machine comprises a plurality of reels, a start switch for starting the rotation of these reels, random number generating means for generating a random number sequence, and a start signal from the start switch. Random number lottery means for selecting one random number value from random numbers sequentially generated from the random number generation means; and A prize judging unit that outputs a prize signal when included in a set region, for example, a region of “large bonus”; a game control unit that controls a gaming machine based on a prize signal from the prize determining unit; There has been known one provided with medal payout means for paying out medals based on a winning signal from the winning determination means.

[0003]

However, in the above-described conventional slot machine, even after a game is started, for example, after a "big bonus" is won, the random number value sequentially generated by the random number generation means remains in the whole area. The area corresponding to the "big bonus" was always set constant. That is, the probability of winning the "big bonus" has always been constant and set low. For this reason, there is a time until the next "big bonus" is won, and even if all the medals obtained in the first "big bonus" are used, the next "big bonus" is often not won. Therefore, you do not feel like playing games continuously,
There was a problem of lack of interest.

[0004] Therefore, the invention of claim 1 has been made in view of the above-mentioned problems of the prior art, and the object thereof is to provide a probability changing means to achieve a "big bonus". After winning the prize, increase the probability of winning the next "big bonus", increase the chances of consecutive prizes,
The goal is to provide a slot machine that is rich in change and has improved game characteristics.

[0005]

SUMMARY OF THE INVENTION The present invention is to achieve the above-mentioned object, and its contents will be described below with reference to embodiments shown in the drawings. The invention according to claim 1 is provided with a sub-lottery means (34) for performing a sub-lottery on condition that a prize is won by the prize judging means (31) .
From the random number generator (35), subject to the winning in the sub-lottery
Change the preset area among all the areas where the random numbers
Probability changing means (33), and the sub-lottery means (34).
The winning judgment is made with the winning probability changed.
Means (31) performed by the random number lottery means (36).
The random number value is randomly generated from the random number generation means (35).
Is included in the preset area of all the areas where the random numbers take
1st prize in which the number of times to determine whether or not is set to 1
With the winning probability changed, the winning determination means (31)
Performed by the random number lottery means (36).
Random number value generated from the random number generating means (35)
Is included in the preset area of all the areas
Including the second prize where the number of judgments is set to multiple times
No, characterized in that.

[0006]

Therefore, according to the first aspect of the present invention, the random number selecting means (36) selects one random number value from the random numbers generated by the random number generating means (35). Then, the winning determination means (3
In 1), it is determined whether or not the random number value selected by the random number selection means (36) is included in a predetermined area set in advance in the entire area, and the random number value selected in the predetermined area is included in the predetermined area. Then, for example, if it is included in the area of the “large bonus”, the winning of the “large bonus” is achieved.

The sub-lottery means (34) performs a sub-lottery on condition that the prize-determination means (31) determines a prize of, for example, a "large bonus". Then, when winning in the sub-lottery in the sub-lottery means (34), the probability changing means (33), the random number generation means (35)
Is changed in a predetermined region among all regions in which the random numbers generated from are taken. As a result, for example, the winning probability of the “large bonus” is increased, and the chance of winning continuously is increased. Ma
In addition, the sub-lottery means (34) determines the first prize.
With the winning probability changed, the winning determination means (31)
Performed by the random number lottery means (36).
Random number value generated from the random number generating means (35)
Is included in the preset area of all the areas
The number of determinations is set to one. In addition, the sub extraction
When the second prize is determined by the selecting means (34), the prize probability is determined.
In the changed state, it is performed by the winning determination means (31).
The random number value drawn by the random number drawing means (36) is
In the whole area where the random number value generated by the random number generation means (35) is taken
Number of times to determine whether or not it is included in a preset area
Is set to multiple times.

[0008]

1 to 3 show an embodiment of the present invention. FIG. 1 is a block diagram showing a control circuit of a slot machine, FIG. 2 is a schematic front view of the slot machine, and FIG. Each flowchart showing the operation is shown. FIG.
Reference numeral 10 denotes a slot machine. A rectangular window 23 is formed at substantially the center of the height of the slot machine 10, and a plurality of windows, three in this embodiment, are formed inside the window 23. Each of the rotating reels 11 to 13 is arranged.

As shown in FIG. 2, an acrylic plate is fitted on the front surface of the window portion 23. A total of three acrylic plates are mounted on the acrylic plate so that the symbols displayed on each of the rotating reels 11 to 13 can be seen. Transparent windows 14 to 16 are formed. Each transparent window
14 to 16, the three symbols of the rotating reels 11 to 13, that is, the symbols arranged at the center and the upper and lower stages thereof are respectively visible.

As shown in FIG. 2, a total of five lines 17 to 21 are displayed on the surfaces of the transparent windows 14 to 16 for displaying effective lines indicating the arrangement of the symbols on the rotating reels 11 to 13. .
The lines 17 to 21 are arranged in a substantially horizontal center line 17, upper and lower lines 18 and 19 located above and below the center line 17 and in parallel with each other, and diagonal lines of the upper and lower lines 18 and 19. It is composed of an obliquely upward diagonal line 20 and a diagonally downwardly oblique line 21 intersecting at the center in the shape of a dot.

As shown in FIG. 2, a medal insertion slot 22 for inserting medals is provided at the lower right of the transparent windows 14 to 16. As shown in FIG. 2, three stops for individually stopping the rotation of each of the rotating reels 11 to 13 are provided below the rotating reels 11 to 13, respectively, as shown in FIG. Switches 26 to 28 are provided, respectively.

On the left side of the stop switches 26 to 28,
As shown in FIG. 2, a start switch 25 for starting rotation of the rotating reels 11 to 13 is provided. On the right side of the stop switches 26 to 28, as shown in FIG.
A credit medal insertion switch 24 for inserting a stored medal is provided. As shown in FIG. 2, a medal discharge port 29 from which medals are discharged is provided at the lower front of the slot machine 10.

Next, a control circuit of the slot machine 10 will be described with reference to FIG. As shown in FIG. 1, the control circuit of the slot machine 10 mainly includes a central control device 30 having a ROM, a RAM, and the like. As shown in FIG. 1, a start switch 25 (FIG. 2) for outputting a start signal is connected to the input side of the central control device 30.

As shown in FIG. 1, a game control means 40 for controlling the gaming machine and a medal payout means 41 for paying out medals to the outside are connected to the output side of the central control device 30 as shown in FIG. Said central control unit 30, as shown in FIG. 1, a random number
A random number generating means 35 for generating, on the basis of a start signal from the start switch 25, a random number lottery means 36 for drawing the one random number from <br/> Ru random be generated from the random number generator 35,
When the random number value selected by the random number lottery means 36 is included in a predetermined area among all areas where the random number value generated by the random number generation means 35 takes, a prize determination means 31 which outputs a prize signal, on condition of winning in the winning determination unit 31, a sub-selecting means 34 for the sub-drawing, on condition winning in the sub-drawing in the sub-drawing means 34, from the random number generator 35
Probability changing means 33 for changing an area set in advance among all areas where the generated random value takes, and probability data storing means 32 for storing the probability data set by the probability changing means 33 are provided.

The operation of the slot machine 10 thus configured will be described with reference to the block diagram shown in FIG. First, insert a medal from the medal slot 22 (Fig. 2),
Alternatively, by operating the credit medal insertion switch 24 (FIG. 2) to insert the stored credit medals, the slot machine 10 is in a state of waiting for input of a start signal from the start switch 25.

Then, as shown in FIG. 1, when the player operates the start switch 25, the start switch 25 outputs a start signal to the random number lottery means 36. When the start signal is input to the random number lottery means 36, the random number lottery means 36 randomly selects one random number value from the random number value generated from the random number generation means 35, and outputs the lottery signal to the winning determination means.
Output to 31.

At this time, the probability data storage means 32 outputs predetermined probability data from the previously stored probability data to the winning determination means 31 as a data signal, as shown in FIG. The probability data is obtained by pre-dividing the entire area of the random number value generated by the random number generating means 35 into predetermined areas, and each area corresponds to a winning rank. Next, as shown in FIG. 1, the lottery signal from the random number lottery means 36 and the data signal from the probability data storage means 32 are combined with the prize determination means.
By being input to 31, the prize determining means 31 determines whether or not the random number value drawn by the random number drawing means 36 is included in a predetermined area set in advance in the entire area of the random number value.
At this time, if the randomly selected random number value is included in a predetermined area set in advance in all the areas, it is determined that a “large bonus” has been won.

When the random number value selected in the lottery is included in a predetermined area, that is, when a "large bonus" is won, as shown in FIG.
Outputs a winning signal to the sub-lottery means 34, the probability changing means 33, the game control means 40, and the medal payout means 41. When the winning signal is input to the sub-lottery means 34 as shown in FIG. 1, the sub-lottery means 34 selects one of the numerical values “0”, “1” or “2”, and outputs the sub-lottery signal. Is output to the probability changing means 33. Specifically, the sub-lottery means 34 is a random number generating means 35
, One random number value is randomly selected from the random numbers generated from , and the random number value is processed depending on whether or not the random number value is included in a predetermined area set in advance in the entire area. That is, in the random number generation means 35, the entire area where the random number value takes is “0”,
The area is divided into three areas of “1” and “2”, and processing is performed depending on which of the areas “0”, “1”, and “2” contains the random number.

As shown in FIG. 1, when the sub-lottery signal is inputted to the probability changing means 33 and a predetermined value is selected, the probability changing means 33 sends the probability changing means 33 from the probability data storage means 32 to the prize judging means 31. Change the probability data. That is,
When the sub-lottery means 34 draws “0”, the probability changing means
33 sets the winning probability of the "big bonus" to 1/350.

On the other hand, if the sub lottery means 34 is "1" or "2"
When the lottery is selected, the probability changing means 33 sets the winning probability of the "large bonus" to 1/30. When "1" is drawn, the winning probability of the "large bonus" is maintained at 1/30 until winning the next "large bonus". Also, "2"
When the lottery is selected, the winning probability of the "large bonus" is maintained at 1/30 until the next "big bonus" is won.

As shown in FIG. 1, when a winning signal is input from the winning determination means 31 to the game control means 40, the game control means 40 operates a lamp for notifying the winning by light, a speaker for notifying by sound, and the like. Further, as shown in FIG. 1, when a winning signal is inputted from the winning determination means 31 to the medal payout means 41, the medal payout means 41 pays out a predetermined number of medals to the player. Specifically, a predetermined number of medals are paid out to the player from a medal outlet 29 (FIG. 1) at the lower front of the slot machine 10.

Next, the operation of the slot machine 10 having the above configuration will be described with reference to a flowchart shown in FIG. First, as shown in FIG. 3, the process proceeds to step 61, in which one random number value is randomly selected from the random number values generated by the random number generation means 35 (FIG. 1). This lottery is selected by random number lottery means.

After the lottery, as shown in FIG.
The process proceeds from step 61 to step 62, and it is determined whether or not the random number value drawn in step 61 has been won. This determination is made by the prize determining means 31 as shown in FIG. Specifically, based on the data signal from the probability data storage means 32 (FIG. 1), the determination is made based on whether or not the randomly selected random number value is included in a predetermined area set in advance in all the areas. At this time, in the probability data stored in the probability data storage means 32 (FIG. 1), the probability of winning the "large bonus" is set to a low value as in the related art, and is set to 1/350. .

In the above step 62, when a win is made, as shown in FIG. 3, the process proceeds to the next step 63, and a "large bonus" is won. Specifically, the winning determination means 31
A winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1).
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) discharges medals from the medal discharge port 29 to the outside.

After the above winning, as shown in FIG.
From 63, the process proceeds to step 64, where a sub-lottery is performed. This sub-lottery is processed by the sub-lottery unit (FIG. 1) on condition that a winning signal is input from the prize judging unit 31 (FIG. 1). Specifically, one random number value is randomly selected from the random number values generated by the random number generation means 35 (FIG. 1), and three predetermined regions “0”, “1”, or “ 2 "
The processing is performed depending on which is included.

After the above determination, if the random number value selected in the lot corresponds to the area of "1", the probability changing means 33 (FIG. 1) stores the data of the winning probability in the probability data storage means 32 (FIG. 1) in advance. Change the data to In other words, "big bonus"
The probability of winning a prize is a high setting, set to 1/30. Then, as shown in FIG. 3, the process proceeds from step 64 to step 65, and a lottery is performed. This lottery is performed by randomly selecting one random number value from the random number values generated by the random number generation means 35 (FIG. 1).

After the lottery, as shown in FIG.
The process proceeds from step 65 to step 66, and it is determined whether or not the random number value drawn in step 65 has been won. This determination is made by the prize determining means 31 as shown in FIG. Specifically, based on the data signal from the probability data storage means 32 (FIG. 1),
The determination is performed based on whether or not the random number value selected in step 65 is included in a predetermined area set in advance in all the areas. At this time, the probability of winning the “big bonus” is the value set in step 64, which is 1/30.

If a win is made in step 66, as shown in FIG. 3, the process proceeds to the next step 67, where a "large bonus" is won. Specifically, the winning determination means 31
A winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1).
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) discharges medals from the medal discharge port 29 to the outside.

Then, as described above, after winning the "big bonus" once, as shown in FIG. 3, the process returns from step 67 to step 64, and a sub-lottery is performed. On the other hand, if the random number value selected in step 64 corresponds to the area of “2”, the probability changing means 33 (FIG. 1)
The winning probability data of 32 (FIG. 1) is set higher. That is, the probability of winning the "big bonus" is set to 1/30. Then, as shown in FIG. 3, the process proceeds from step 64 to step 68, and a lottery is performed. This lottery is performed by randomly selecting one random number value from the random number values generated by the random number generation means 35 (FIG. 1).

After the lottery, as shown in FIG.
The process proceeds from step 68 to step 69, and it is determined whether or not the random number value drawn in step 68 has been won. This determination is performed by the winning determination means 31 (FIG. 1) as shown in FIG. Specifically, based on the data signal from the probability data storage means 32 (FIG. 1), it is determined whether or not the random number value selected in step 68 is included in a predetermined area set in advance among all the areas. . At this time, in the probability data stored in the probability data storage means 32 (FIG. 1), the probability of winning the "big bonus" is the value set in step 64, which is 1/30.

In the above step 69, when a win is made, as shown in FIG. 3, the process proceeds to the next step 70, and a "large bonus" is won. Specifically, the winning determination means 31
A winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1).
(FIG. 1) operates a winning sound and the like, and the medal payout means 41 (FIG. 1) discharges medals from the medal discharge port 29 to the outside.

In the above step 70, the "big bonus"
When the game is further continued after winning, the game proceeds from step 70 to step 71 as shown in FIG. 3, and a lottery is performed. This lottery is performed by randomly selecting one random number value from the random number values generated by the random number generation means 35 (FIG. 1). After the lottery, as shown in FIG. 3, the process proceeds from step 71 to step 72, and it is determined whether or not the random number value selected in step 72 has been won. This determination is performed by the winning determination means 31 (FIG. 1) as shown in FIG. Specifically, based on the data signal from the probability data storage means 32 (FIG. 1),
The determination is made based on whether or not the random number value selected in step 71 is included in a predetermined area set in advance in all the areas. At this time, in the probability data stored in the probability data storage means 32 (FIG. 1), the probability of winning the "large bonus" is the value set in step 64, and is set to 1/30.

In the above step 72, when a win is made, as shown in FIG. 3, the process proceeds to the next step 73, and a "large bonus" is won. Specifically, the winning determination means 31
A winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1).
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) discharges medals to the outside.

As described above, the winning probability is 30 minutes.
After winning twice in the “Big Bonus” with the setting of 1,
As shown in (2), the process returns to step 64 to execute a sub-lottery. Further, when the random number value selected in the step 64 corresponds to the area of “0”, the process returns to the step 61 to execute the lottery. On the other hand, in the previous steps 62, 66, 69, 72, if no win is made, that is, if the random number value selected is not included in a predetermined area set in advance in all the areas,
Returning to steps 61, 65, 68, 71, respectively, the lottery is executed.

As described above, in the present embodiment, when a predetermined value is drawn by the sub-lottery means 34 after winning the "large bonus", the probability of winning the "large bonus" is increased by the probability changing means 33. be able to. This allows
It is possible to increase the probability of continuously winning the "large bonus", and to increase the chance of continuous winning.

In this embodiment, the "large bonus"
With the prize probability set to 1/30 higher, a sub-lottery 64 was performed in which one or two lotteries of the "large bonus" were performed. The number of wins is not particularly limited, and may be 3
The same effect can be obtained even if the number is set to more than the number of times.

Further, the setting with a higher winning probability is as follows.
It was explained that the winning probability is set to 1/30, but the setting of the high winning probability is not limited to this value, and if the winning probability is set to be higher than 1/350, For example, it may be 1/10, 1/20 or 1/40.

[0038]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the described invention, by providing the probability changing means,
After winning the "great bonus", the probability of winning the next "great bonus" is increased, the chances of consecutive winnings are increased, and a slot machine that is rich in change and has improved game characteristics can be provided. Further, according to the first aspect of the present invention,
If the winning probability is changed, the random number
The random number value generated by the random number generation means is
Of whether or not it is included in a preset area among all the areas
Whether the number of times to perform
Because it was decided by selection, with the probability changed
Changes in the number of winning judgments, and the change is determined by lottery
It is possible to play extremely thrilling games
Slot machine can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of a slot machine according to an embodiment of the present invention.

FIG. 2 is a schematic front view of the slot machine.

FIG. 3 is a flowchart showing an operation of the slot machine.

[Explanation of symbols]

10 Slot machine 11-13 Spinning reel 14-16 Transparent window 17-21 Line 22 Medal slot 23 Window 24 Credit medal slot switch 25 Start switch 26-28 Stop switch 29 Medal outlet 30 Central controller 31 Winning judgment means 32 Probability data storage means 33 Probability changing means 34 Sub lottery means 35 Random number generation means 36 Random number lottery means 40 Game control means 41 Medal payout means 61-73 steps

Claims (1)

(57) [Claims] [1 claim: a plurality of reels, a start switch for starting the rotation of these reels, the random number generating means for generating a random number, based on the start signal from the start switch,
Random number lottery means for randomly selecting one random number value from the random number value generated by the random number generation means; and A prize determination unit that outputs a prize signal when included in the set area; a game control unit that controls the gaming machine based on the prize signal from the prize determination unit; and a prize signal from the prize determination unit. based on, in the slot machine and a medal paying means for paying out medals, on condition winning in the winning determination means comprises a sub-drawing means for the sub-drawing, the winning of a sub lottery in this sub-selecting means Condition
It is set in advance in all areas where the random number value generated by the random number generator takes.
The winning probability is changed for the probability changing means for changing the defined area and the winning by the sub-lottery means.
In the state, the random number is determined by the winning determination means.
The random number value drawn by the lottery means is the random number generation means
In the preset area of all the areas where the random numbers generated from
The number of times to determine whether it is included is set to 1
1 Winning and, with the winning probability changed,
A lottery performed by the random number lottery means.
The random number value sequentially generated from the random number generation means is
Determine whether or not it is included in a preset area among all the areas to be taken.
A slot machine comprising: a second prize in which the number of cuts is set to a plurality of times .