JPH0780126A - Slot machine - Google Patents

Abstract

PURPOSE:To provide a slot machine of enhanced playability allowing a variety of games by increasing the chance of successive scoring. CONSTITUTION:This slot machine is provided with a subsidiary lottery means 34 for performing a subsidiary lottery on condition that a scoring recognition means 31 recognizes scoring, and a probability variation means 33, whereby, on condition that scoring is made in the subsidiary lottery performed by the subsidiary lottery means 34, a preset region in all of the areas that random numbers generated in sequence from a random number generation means 35 take, is varied.

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 varying the winning probability after winning.

[0002]

2. Description of the Related Art A conventional slot machine uses a plurality of reels, a start switch for starting the rotation of these reels, a random number generating means for sequentially generating random numbers, and a start signal from the start switch. Random number lottery means for randomly selecting one random number value from the random numbers sequentially generated from the random number generating means, and the random number value selected by this random number lottery means is in advance in the whole area taken by the random number values sequentially generated from the random number generating means. When included in a set area, for example, a "large bonus" area, a winning determination means for outputting a winning signal, a game control means for controlling a gaming machine based on the winning signal from the winning determination means, and There has been known one provided with a medal payout means for paying out medals based on a winning signal from the winning award determination means.

[0003]

However, in the above-mentioned conventional slot machine, even after the game is started, for example, after the player wins the "large bonus", the random number values sequentially generated by the random number generating means are in the entire area. The area corresponding to the "large bonus" was always set to be constant. That is, the probability of winning the "big bonus" was always set to be constant and low. Therefore, it often takes 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 not often won. Therefore, I do not feel like playing games continuously,
There was a problem that it was not interesting.

Therefore, the invention according to claim 1 has been made in view of the problems of the above-mentioned conventional technique, and the purpose thereof is to provide a probability changing means to provide a "large bonus". After winning, the probability of winning the next "big bonus" is increased, increasing the chances of continuous winning,
Therefore, it is intended to provide a slot machine which is rich in variety and has improved game characteristics.

[0005]

The present invention is to achieve the above-mentioned object, and the contents thereof will be described below with reference to the 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 the condition that a prize is won by the win determination means (31), and a win in the sub lottery by this sub lottery means (34). The random number generating means (35) is provided with a probability changing means (33) for changing a preset area among all areas taken by the random number values sequentially generated.

[0006]

Therefore, according to the first aspect of the invention, the random number lottery means (36) randomly selects one random number value from the random numbers sequentially generated by the random number generation means (35). Then, in the winning determination means (31), 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 all the areas, and the random number value is selected. When included in the predetermined area, for example, when included in the area of “large bonus”,
The "big bonus" will be awarded.

[Large bonus] in this winning determination means (31)
The sub lottery means (34) carries out the sub lottery on the condition that the prize is determined. When a prize is won in the sub-lottery by the sub-lottery means (34), the probability changing means (33) changes a preset area among all areas taken by the random number values sequentially generated from the random number generating means (35). As a result, the winning probability of the "large bonus" is increased, and the chances of continuous winning are increased.

[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 of the flowcharts showing the operation is shown. Figure 2
In the figure, 10 indicates a slot machine, and a rectangular window portion 23 is formed at approximately the center of the height of the slot machine 10. Inside the window portion 23, a plurality of windows, 3 in this embodiment, are provided. Revolving reels 11 to 13 are individually arranged.

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

On the surfaces of the transparent windows 14 to 16, as shown in FIG. 2, a total of five lines 17 to 21 for displaying effective lines showing the arrangement of the symbols on the rotating reels 11 to 13 are displayed. .
The lines 17 to 21 are arranged in a substantially horizontal center line 17, upper and lower lines 18 and 19 which are separated from each other above and below the center line 17 and are parallel to each other, and diagonal lines of the upper and lower lines 18 and 19. It is composed of a diagonal line 20 rising to the right and a diagonal line 21 descending to the right, intersecting in a dot pattern at the center.

As shown in FIG. 2, a medal insertion slot 22 for inserting medals is provided at the lower right of the transparent windows 14-16. Below the rotating reels 11 to 13, as shown in FIG. 2, there are three stops corresponding to the rotating reels 11 to 13, respectively, for individually stopping the rotation of the rotating reels 11 to 13. 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 the rotation of the rotary 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. Further, as shown in FIG. 2, a medal discharge port 29 through which medals are discharged is provided below the front surface of the slot machine 10.

Next, the 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 is mainly composed of a central control device 30 including a ROM, a RAM and the like. As shown in FIG. 1, a start switch 25 (FIG. 2) that outputs a start signal is connected to the input side of the central controller 30.

As shown in FIG. 1, a game control means 40 for controlling a game 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. 1, the central controller 30 includes a random number generating means 35 for sequentially generating random numbers and a start switch 25.
Based on the start signal from the random number generation means 35, a random number lottery means 36 for randomly selecting one random number value from the random numbers sequentially generated, and the random number value selected by this random number lottery means 36 from the random number generation means 35. When included in a preset area out of all areas taken by the sequentially generated random number value, a winning determination means 31 for outputting a winning signal, and a sub lottery means for performing a sub lottery on the condition of winning by the winning determination means 31 34, probability changing means 33 for changing a preset area among all areas taken by the random number values sequentially generated from the random number generating means 35 on the condition of winning in the sub lottery in this sub lottery means 34, and this probability changing Probability data storage means 32 for storing the probability data set by the means 33.

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 insertion slot 22 (Fig. 2),
Alternatively, the slot machine 10 waits for the start signal from the start switch 25 depending on whether the credit medal insertion switch 24 (FIG. 2) is operated to insert the stored credit medal.

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. By inputting this start signal to the random number lottery means 36, the random number lottery means 36 randomly selects one random number value from the random number values sequentially generated from the random number generation means 35, and outputs the lottery signal to the winning determination means 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. This probability data is obtained by dividing the entire area of the random number values sequentially generated by the random number generation means 35 into predetermined areas, and each area corresponds to the winning rank. next,
As shown in FIG. 1, a lottery signal from the random number lottery means 36,
By inputting the data signal from the probability data storage means 32 to the winning determination means 31, the winning determination means 31, the random number value selected by the random number lottery means 36 is preset in the whole area of the random number value. It is determined whether it is included in a predetermined area. At this time, when the randomly selected random number value is included in a predetermined area set in advance in all the areas, it is determined that the "large bonus" is won.

When the randomly selected random number value is included in a predetermined area set in advance, that is, when the "large bonus" is won, as shown in FIG.
Outputs the 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 this winning signal is input to the sub lottery means 34 as shown in FIG. 1, the sub lottery means 34 lottery a numerical value of "0", "1" or "2", and 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 sequentially generated from, and this 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 of the random number value is "0",
It is divided into three areas of “1” and “2” and processed depending on which area of “0”, “1” and “2” the random value is included in.

Then, as shown in FIG. 1, when the sub lottery signal is input to the probability changing means 33 and a predetermined value is drawn, the probability changing means 33 sends the probability data storing means 32 to the winning determination means 31. Change the probability data. That is,
If the sub lottery means 34 draws "0", the probability changing means
33 sets the winning probability of "Large Bonus" to 1/350.

On the other hand, the sub lottery means 34 is "1" or "2".
When the lottery is performed, the probability changing means 33 sets the winning probability of the “large bonus” to 1/30. When the "1" is drawn, the winning probability of the "big bonus" is maintained at 1/30 until the next "big bonus" is won. Also, "2"
When the lottery is performed, the winning probability of the “big bonus” is maintained at 1/30 until the next, so-called second “big bonus” is won.

Further, 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 and a speaker for notifying by sound. Further, as shown in FIG. 1, when the winning signal is input 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 the medal discharge port 29 (FIG. 1) below the front surface of the slot machine 10.

Next, the operation of the slot machine 10 having the above configuration will be described with reference to the flow chart shown in FIG. First, as shown in FIG. 3, the process proceeds to step 61, and one random number value is randomly selected from the random number values sequentially generated by the random number generating means 35 (FIG. 1). This lottery is a random number lottery means
It is drawn at 36.

After the above lottery, as shown in FIG.
The process proceeds from 61 to step 62, and it is determined whether or not the random number value selected in step 61 is won. This determination is performed by the winning determination means 31 as shown in FIG. Specifically, it is performed based on the data signal from the probability data storage means 32 (FIG. 1) whether or not the randomly selected random 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 conventional case, and is set to 1/350. .

When the player wins in step 62, 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
The winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1), and the game control means 40
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) ejects the medal from the medal ejection port 29 to the outside.

After the above winning, as shown in FIG. 3, step
From 63 to step 64, a sub lottery is conducted. This sub lottery is processed by the sub lottery means 34 (FIG. 1) on condition that the winning signal is input from the winning determination means 31 (FIG. 1). Specifically, one random number value is randomly selected from the random number values sequentially generated by the random number generating means 35 (FIG. 1), and three preset areas, "0", "1", or It is processed depending on which of "2" is included.

After the above determination, if the random number selected by lottery falls within the area of "1", the probability changing means 33 (FIG. 1) stores the winning probability data of the probability data storing means 32 (FIG. 1) in advance. Change to the data of. That is, "a big bonus"
The probability of winning a prize is a high setting, which is 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 drawing one random number value from the random number values sequentially generated from the random number generating means 35 (FIG. 1).

After the above 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 selected in step 65 has been won. This determination is performed by the winning determination means 31 as shown in FIG. Specifically, based on the data signal from the probability data storage means 32 (FIG. 1),
This is performed depending on whether or not the random number value selected in step 65 is included in a predetermined area set in advance among all the areas. At this time, the probability of winning the “large bonus” is the value set in step 64, which is 1/30.

If the player wins in step 66, as shown in FIG. 3, the process proceeds to the next step 67, and a "large bonus" is won. Specifically, the winning determination means 31
The winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1), and the game control means 40
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) ejects the medal from the medal ejection port 29 to the outside.

Then, as described above, after the "large bonus" has been won once, as shown in FIG. 3, the process returns from step 67 to step 64 to carry out the sub lottery. On the other hand, in the previous step 64, when the randomly selected random number value corresponds to the area of “2”, the probability changing means 33 (FIG. 1) causes the probability data storing means.
The data of the winning probability 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 drawing one random number value from the random number values sequentially generated from the random number generating means 35 (FIG. 1).

After the lottery, as shown in FIG.
The process proceeds from 68 to step 69, and it is determined whether or not the random number value selected in step 68 has been won. This determination is performed by the winning determination means 31 (FIG. 1) as shown in FIG. Specifically, it is performed based on the data signal from the probability data storage means 32 (FIG. 1) 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 "large bonus" is the value set in step 64, which is 1/30.

If the player wins in step 69, as shown in FIG. 3, the process proceeds to the next step 70, and the "large bonus" is won. Specifically, the winning determination means 31
The winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1), and the game control means 40
(FIG. 1) operates the winning sound and the like, and the medal payout means 41 (FIG. 1) ejects the medal from the medal ejection port 29 to the outside.

In step 70, the "large bonus"
When the game is further continued after winning the prize, the process proceeds from step 70 to step 71 as shown in FIG. 3, and the lottery is conducted. This lottery is performed by drawing one random number value from the random number values sequentially generated from the random number generating 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 is won. This determination is performed by the winning determination means 31 (FIG. 1) as shown in FIG. Specifically, it is performed based on whether or not the random number value selected in step 71 is included in a predetermined area set in advance based on the data signal from the probability data storage means 32 (FIG. 1). . 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.

If the player wins in step 72, as shown in FIG. 3, the process proceeds to the next step 73 to win a "large bonus". Specifically, the winning determination means 31
The winning signal is output from (FIG. 1) to the game control means 40 (FIG. 1) and the medal payout means 41 (FIG. 1), and the game control means 40
(FIG. 1) operates a winning sound or the like, and the medal payout means 41 (FIG. 1) ejects the medal to the outside.

Then, as described above, the winning probability is 30 minutes.
At the setting of 1, after winning the "Large Bonus" twice,
As shown in, the process returns to step 64 and the sub lottery is carried out. Furthermore, in the previous step 64, when the random number value selected by lottery corresponds to the area of “0”, the process returns to step 61 and the lottery is carried out. On the other hand, in the previous steps 62, 66, 69, 72, if not won, that is, if the random number selected by lottery is not included in the predetermined area preset in all the areas,
Each of the steps 61, 65, 68, 71 is returned to and the lottery is conducted.

As described above, in this embodiment, when the "large bonus" is won and the sub lottery means 34 draws a predetermined value, the probability changing means 33 increases the probability of winning the "large bonus". be able to. This allows
It is possible to increase the probability of winning the “big bonus” continuously, and increase the chance of continuous winning.

It should be noted that in the present embodiment, a "large bonus"
With the winning probability set to 1/30 higher, a sub-lottery 64 was conducted in which the "large bonus" was drawn once or twice, but the winning probability was set to a "large bonus". The number of winnings is not particularly limited to this, and 3
The same effect can be obtained even if the number of times is set to be more than one.

Furthermore, the setting with a higher winning probability is
I explained that it is the case where the winning probability is set to 1/30, but the setting with the higher winning probability is not limited to this value, as long as the winning probability is higher than 1/350 It may be, for example, 1/10, 1/20, or 1/40.

[0038]

Since the present invention is constituted as described above, it has the following effects. Claim 1
According to the described invention, by providing the probability changing means,
It is possible to provide a slot machine that has a high game quality and is highly variable, increasing the probability of winning the next “big bonus” after winning the “big bonus” and increasing the chances of continuous winning.

[Brief description of 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 a 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 insertion slot 23 Window 24 Credit medal insertion switch 25 Start switch 26-28 Stop switch 29 Medal ejection opening 30 Central control unit 31 Prize determination means 32 Probability data storage means 33 Probability changing means 34 Sub lottery means 35 Random number generating means 36 Random lottery means 40 Game control means 41 Medal payout means 61 to 73 steps

Claims (1)

[Claims] 1. A plurality of reels, a start switch for starting rotation of these reels, a random number generating means for sequentially generating random numbers, and a start signal from the start switch,
Random number lottery means for randomly selecting one random number value from the random number values sequentially generated by the random number generating means, and the whole area of the random number values randomly selected by the random number generating means taken by the random number values sequentially generated by the random number generating means. Medium If included in a preset area, winning determination means for outputting a winning signal, game control means for controlling a gaming machine based on the winning signal from the winning determination means, and winning from the winning determination means In a slot machine provided with a medal payout means for paying out medals based on a signal, a sub-lottery means for performing a sub-lottery, and a win for a sub-lottery in this sub-lottery means, on condition that a prize is won by the above-mentioned prize determination means. On condition that
A slot machine, comprising: probability changing means for changing a preset area out of all areas taken by random number values sequentially generated from the random number generating means.