Gaming machine

Patent metadata

Field	Value
Publication number	US-10510212-B2
Application number	US-201615255222-A
Country	US
Kind code	B2
Filing date	Sep 2, 2016
Priority date	Sep 3, 2015
Publication date	Dec 17, 2019
Grant date	Dec 17, 2019

Abstract

A gaming machine which makes it possible to avoid monotonous game play is provided. At the start of each game play, gaming machine executes processes of: randomly selecting one of symbol random determination tables in which a probability of rearrangement of each symbol on each reel is defined, based on a symbol random determination table determination table in which a probability of random selection of one of the symbol random determination tables for each of the random determination tables; a symbol random determination process of randomly determining symbols to be rearranged based on the selected symbol random determination table; and displaying the determined symbols on a display device by rearranging the reels.

First claim

What is claimed is:

1. A gaming machine comprising:
a display device configured to display a game result by rearranging reels on which symbols are arranged;
a storage device configured to store symbol random determination tables in which a probability of rearrangement of each of the symbols on the reels is defined and a symbol random determination table determination table in which a probability of random selection of one of the symbol random determination tables is defined for each of the symbol random determination tables; and
a controller configured to execute the processes of:
(1-1) accepting, via a gaming medium acceptor, a gaming medium with a monetary value which establishes a credit balance for a player;
(1-2) receiving, via a bet input device, a bet whose amount is designated by the player based on the credit balance;
(1-3) executing a game as a result of the player's bet;
(1A) at start of each game play, randomly selecting one of the symbol random determination tables based on the symbol random determination table determination table;
(1B) randomly determining symbols to be rearranged, based on the symbol random determination table selected in the process (1A); and
(1C) displaying the symbols determined in the process (1B) on the display device by rearranging the reels, wherein,
the symbol random determination tables include a symbol random determination table in which a probability of rearrangement of a predetermined symbol is high as compared to the other symbol random determination tables,
the storage device further includes symbol random determination table determination tables, and
the symbol random determination table determination tables include a high-probability symbol random determination table determination table in which the symbol random determination table in which the probability of rearrangement of the predetermined symbol is high is more probable to be selected as compared to the other symbol random determination table determination tables.

2. The gaming machine according to claim 1 , wherein,
the symbol random determination tables further include a symbol random determination table in which a probability of rearrangement of a predetermined symbol on reels one short of the all reels is high as compared to the other symbol random determination tables.

3. The gaming machine according to claim 1 , wherein,
the controller is configured to further execute a process of awarding a payout in accordance with a combination of the symbols rearranged on the display device, and
the symbol random determination tables further include, in regard to a probability of rearrangement of a symbol, a low-expectation symbol random determination table which is arranged so that expectation on the payout is low as compared to the other symbol random determination tables and a high-expectation symbol random determination table which is arranged so that expectation on the payout is high as compared to the other symbol random determination tables.

4. The gaming machine according to claim 1 , wherein,
the game is run in a normal mode in which a symbol random determination table is randomly selected based on the another symbol random determination table determination table or in a high-probability mode in which a symbol random determination table is randomly selected based on the high-probability symbol random determination table determination table, and
the symbol random determination tables are shared between the normal mode and the high-probability mode.

5. A gaming machine comprising:
a display device configured to display a game result by rearranging reels on which symbols are arranged;
a storage device including: symbol random determination tables in which probabilities of rearrangement of a predetermined symbol are different as a probability of rearrangement of each symbol on the reels is set;
a normal mode symbol random determination table determination table in which a probability of random selection of one of the symbol random determination tables is defined for each of the symbol random determination tables;
a high-probability mode symbol random determination table determination table in which a probability of random selection of one of the symbol random determination tables is defined for each of the symbol random determination tables such that a symbol random determination table in which a probability of rearrangement of the predetermined symbol is high is more probable to be selected as compared to the normal mode symbol random determination table determination table; and
a high-probability mode shifting random determination table in which a winning probability of shifting from a normal mode to a high-probability mode is defined; and
a controller configured to execute the processes of:
(1-1) accepting, via a gaming medium acceptor, a gaming medium with a monetary value which establishes a credit balance for a player;
(1-2) receiving, via a bet input device, a bet whose amount is designated by the player based on the credit balance;
(1-3) executing a game as a result of the player's bet;
(1A) at start of game play in the normal mode, randomly selecting one of the symbol random determination tables based on the normal mode symbol random determination table determination table;
(1B) randomly determining symbols to be rearranged based on the symbol random determination table selected in the process (1A);
(1C) displaying the symbols determined in the process (1B) on the display device by rearranging the reels;
(1D) when a combination of the symbols to be rearranged as a result of the process (1 B) is a combination of a specific symbol, randomly determining whether to shift the normal mode to the high-probability mode based on the high-probability mode shifting random determination table;
(1E) when shifting from the normal mode to the high-probability mode occurs as a result of the process (1D), at start of game play in the high-probability mode, randomly selecting one of the symbol random determination tables based on the high-probability mode symbol random determination table determination table;
(1F) randomly determining symbols to be rearranged, based on the symbol random determination table selected in the process (1E); and
(1G) displaying the symbols determined in the process (1F) on the display device by rearranging the reels.

6. The gaming machine according to claim 5 , wherein,
there are plural combinations of the specific symbol, and
in the high-probability mode shifting random determination table, the winning probability of shifting from the normal mode to the high-probability mode is defined in accordance with the combinations of the specific symbol.

7. The gaming machine according to claim 5 , wherein,
the symbol random determination tables are shared between the normal mode and the high-probability mode.

8. A gaming machine comprising:
a display device configured to display a game result by rearranging reels on which symbols including a specific symbol are arranged;
an input device capable of receiving an input of plural types of bet values; and
a controller configured to accept, via a gaming medium acceptor, a gaming medium with a monetary value which establishes a credit balance for a player, receive, via the input device, a bet whose bet value is input by the player based on the credit balance, execute a game as a result of the player's bet, and control game modes which are different in a probability of rearrangement of the specific symbol,
the controller switching the game mode in accordance with a bet value input by the input device, wherein,
the game modes include a high-probability mode in which a probability of rearrangement of the specific symbol is high as compared to another gam

Assignees

• Universal Entertainment Corp
• Aruze Gaming Hong Kong Ltd

Inventors

• Fujisawa Masumi
• Inamura Yukinori
• Kitamura Kenta

Classifications

• G07F17/34

  depending on the stopping of moving members {in a mechanical slot machine}, e.g. "fruit" machines · CPC title

• G07F17/3267 Primary

  Game outcomes which determine the course of the subsequent game, e.g. double or quits, free games, higher payouts, different new games · CPC title

• G07F17/3244

  Payment aspects of a gaming system, e.g. payment schemes, setting payout ratio, bonus or consolation prizes · CPC title

• G07F17/3213

  Details of moving display elements, e.g. spinning reels, tumbling members · CPC title

• G06F7/588

  Random number generators, i.e. based on natural stochastic processes · CPC title