WO1997031344A1 - Slot machine game with dynamic special symbols - Google Patents
Slot machine game with dynamic special symbols Download PDFInfo
- Publication number
- WO1997031344A1 WO1997031344A1 PCT/AU1997/000103 AU9700103W WO9731344A1 WO 1997031344 A1 WO1997031344 A1 WO 1997031344A1 AU 9700103 W AU9700103 W AU 9700103W WO 9731344 A1 WO9731344 A1 WO 9731344A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- special symbol
- display
- symbol
- game
- gaming machine
- Prior art date
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
- G07F17/34—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements depending on the stopping of moving members in a mechanical slot machine, e.g. "fruit" machines
Definitions
- the present invention relates to gaining machines of the type arranged to play a game of poker and in particular the invention provides an improvement to a game played on such a machine.
- the present invention consists in a gaming machine having display means, and game control means arranged to control images displayed on the display means, the game control means being arranged to play a game wherein a plurality of symbols are randomly selected and displayed on the display means and, if a winning combination results, the machine pays a prize, the game being characterised in that the gaining machine is provided with special symbol display means arranged to display a value of a special symbol to be used in the game, and the control means being arranged to select and display the special symbol on the special symbol display means during each game and to use the special symbol when determining if the plurality of symbols include a winning combination.
- the present invention is applicable to gaming machines of the traditional poker machine style (also known as poker machine or fruit machines) in which the display means comprises a set of rotatable reels, each carrying a plurality of symbols, or a video simulation thereof.
- the invention is equally applicable to video draw poker machines in which a poker hand is displayed on the screen, the cards of the hand being selected from a standard
- the special symbol is used as a wildcard symbol which can substitute for any other symbol to form a winning combination.
- the special symbol is used as a scatter symbol such that a scattered combination of the special symbols with one such symbol in each column, but not all located in any one of the predetermined paying arrangements, will pay a special "scattered" prize.
- the special symbol can also be used as a bonus symbol or a jackpot symbol, such that if the special symbol is included in a winning combination respectively a bonus function or a jackpot function will be invoked.
- an auxiliaiy display is required to display the special symbol. This may take the form of a liquid crystal display built into the score card artwork.
- the special symbol is preferably displayed on the video screen when the winning symbol or combination is displayed.
- Figure 2 illustrates a gaming machine with a video simulation of a rotating reel display incorporating the first embodiment of the invention
- Figure 3 illustrates a video draw poker machine incorporating an embodiment of the invention.
- a slot machine 20 of the type having a plurality of rotatable reels 30 carrying symbols 31 is arranged to pay a prize on the occurrence of a predetermined symbol or combination of symbols.
- a special symbol display 33 is provided within the artwork panel to display a special symbol for use in determining additional winning combinations.
- the special symbol will be used as a wildcard symbol such that when a game is played any occurrence of the currently displayed wildcard symbol in the game display will count as any other symbol when determining if any winning combinations have occurred.
- the current special symbol displayed is a 7 and this may substitute for any other symbol, such as a King, to provide a winning combination.
- the 7 combines with two Kings on the centre line which pays the same prize as three Kings.
- the special symbol is used to indicate a symbol that will pay a prize even if its occurrence is scattered across the display in an otherwise non-winning combination.
- a "scattered" prize there must be one occurrence of the symbol in each column of the display.
- a prize would be won for having scattered sevens (centre line of first column, top line of second column and bottom line of third column).
- bonus function is known in prior art slot machines, such as machines which provide free games when a particular combination is achieved.
- bonus schemes are invoked when the player achieves a complete row of a particular predefined symbol.
- the special symbol display of the present invention can be used in such games to dynamically select the symbol that must be displayed to invoke the bonus scheme.
- Jackpot machines are also known in which a jackpot prize builds up over a period of time, by incrementing the jackpot prize by a small amount each time a player plays the particular machine, or in the case of linked machines, every time a player plays one of the linked machines.
- the jackpot is typically awarded when a particular predetermined combination of symbols is displayed in a game.
- the jackpot is won when a machine displays a predetermined combination including the special symbol displayed in display 33.
- the top box 32 on top of the slot machine 20 carries the artwork panel 35 which displays the various winning combinations for which a prize is paid on this machine, and in particular includes a display window 33 in which is displayed the variable special symbol associated with each game and which may be used as a "wildcard”, “scattered”, “bonus”, or “jackpot” symbol depending on the style of game provided on the machine.
- the special symbol window will change to display a new special symbol valve, such as a seven, as illustrated in the example game displayed in Figure 1.
- the special symbol may be calculated as a random number or alternatively it may be calculated using a formula based on pay history of the machine in which the feature is fitted, such that the percentage return of the machine may be regulated, by selecting special symbols having a higher probability of occurrence in a game, when the payout history of the machine has been low and by selecting special symbols having a lower probability of occurrence in a game when the payout history of the machine has been high.
- a slot machine 40 is provided with a video screen 41 on which spinning reels 42 are simulated, each of the spinning reels having a plurality of symbols 43 similar to the physical symbols in the embodiment of Figure 1. Games on this machine are initiated by operation of a button 44 below the video screen.
- the top box 45 again carries an artwork panel 35 which displays information about prize winning combinations and in this instance would include information about the function of the special symbol but not the special symbol display 33 of Figure 1. Rather, the special symbol is displayed in a pseudo window 46 provided on the video screen.
- the draw poker machine 60 is again provided with a video screen 41 on which are displayed five cards 61 drawn from a deck of 52 or 53 cards.
- the prizes displayed on artwork 35 of the top box 45 relate to standard poker hands, however, the special symbol feature of the present invention may also be provided either on a combination which is a standard winning poker hand or some other combination selected specifically for this special feature. For example, using the feature of a wildcard as our example, the prize might again be paid on the occurrence of a seven in any position on the screen which then substitutes as a King to provide a hand of four of a kind.
Abstract
A slot machine (20) which provides a plurality of rotatable reels (30) carrying symbols (31) is arranged to pay a prize on the occurrence of a predetermined symbol or combination of symbols. As well as the predetermined prize winning combinations listed on the artwork (35) of top box (32), a special symbol display (33) is provided within the artwork panel to display a special symbol for use in determining additional winning combinations. Typically, the special symbol will be used as a wildcard symbol such that when a game is played any occurrence of the currently displayed wildcard symbol in the game display will count as any other symbol when determining if any winning combinations have occurred.
Description
SLOT MACHINE GAME WITH DYNAMIC SPECIAL SYMBOLS Introduction
The present invention relates to gaining machines of the type arranged to play a game of poker and in particular the invention provides an improvement to a game played on such a machine.
Players who regularly play gaming machines quickly tire of particular games and therefore it is necessary for manufacturers of these machines to come up with innovative game features that add interest to the games provided on such machines in order to keep the players amused and therefore willing to continue playing the game.
Description of the Prior Art
Gaming or poker machines have been well known in the state of New South Wales for many years and have more recently gained considerable popularity throughout Australia, with quite substantial amounts of money wagered on these machines. There is a growing tendency for State
Governments to legalise the use of gaming machines by licensing operators, with resulting revenue gains through licence fees and taxation of monies invested. The licensed operation of gaming machines is the subject of State legislation and regulation. This regulation most always dictates a maximum percentage payout for a gaming machine. For example, a maximum of 85% of monies invested must be returned as winnings, and manufacturers of gaming machines therefore must design their machines around these regulatory controls.
With the growth that has occurred in the gaming machine market there is intense competition between manufacturers to supply the various existing and new veiuies. When selecting a supplier of gaming machines, the operator of a venue will often pay close attention to the popularity of various games with their patrons. Therefore, gaming machine manufacturers are keen to devise games which are popular with players, as a mechanism for improving sales.
Many various strategies have been tried in the past to make games more enticing to players, including the commonly known double-up feature, whereby, if a player wins a particular game, they can then risk the winnings of that game in a double-or-nothing mode in which they gamble on a subsequent, and often different, game such as whether a red or black card will be the next card drawn.
Other techniques adopted in the past have been to provide complexity in the numbering and combinations of indicia which would result in a win, thereby hoping to convince the player that there is a greater chance of winning and to keep their interest in a particular game. The present invention provides an arrangement in which the values of special symbols such as wildcard and "scatter" symbols are dynamically allocated during each game. Summary of the Invention
The present invention consists in a gaming machine having display means, and game control means arranged to control images displayed on the display means, the game control means being arranged to play a game wherein a plurality of symbols are randomly selected and displayed on the display means and, if a winning combination results, the machine pays a prize, the game being characterised in that the gaining machine is provided with special symbol display means arranged to display a value of a special symbol to be used in the game, and the control means being arranged to select and display the special symbol on the special symbol display means during each game and to use the special symbol when determining if the plurality of symbols include a winning combination. The present invention is applicable to gaming machines of the traditional poker machine style (also known as poker machine or fruit machines) in which the display means comprises a set of rotatable reels, each carrying a plurality of symbols, or a video simulation thereof. The invention is equally applicable to video draw poker machines in which a poker hand is displayed on the screen, the cards of the hand being selected from a standard
52 or 53 card deck.
In one embodiment, the special symbol is used as a wildcard symbol which can substitute for any other symbol to form a winning combination. In another embodiment, the special symbol is used as a scatter symbol such that a scattered combination of the special symbols with one such symbol in each column, but not all located in any one of the predetermined paying arrangements, will pay a special "scattered" prize. The special symbol can also be used as a bonus symbol or a jackpot symbol, such that if the special symbol is included in a winning combination respectively a bonus function or a jackpot function will be invoked.
In embodiments of the invention which employ rotating reels as the display device, an auxiliaiy display is required to display the special symbol. This may take the form of a liquid crystal display built into the score card artwork. In the case of a video machine, the special symbol is preferably displayed on the video screen when the winning symbol or combination is displayed. Brief Description of the Drawings
An embodiment of the invention will now be described, by way of example with reference to the accompanying drawings, in which:- Figure 1 illustrates a gaming machine with rotating reel display incorporating a first embodiment of the invention;
Figure 2 illustrates a gaming machine with a video simulation of a rotating reel display incorporating the first embodiment of the invention;
Figure 3 illustrates a video draw poker machine incorporating an embodiment of the invention.
Detailed Description of the Preferred Embodiments
In the following detailed description the methodology of the embodiments will be described, and it is to be understood that it is within the capabilities of the non-inventive worker in the art to introduce the methodology on any standard microprocessor-based gaming machine by means of appropriate programming.
Referring to Figure 1 of the drawings, the first embodiment of the invention is illustrated in which a slot machine 20 of the type having a plurality of rotatable reels 30 carrying symbols 31 is arranged to pay a prize on the occurrence of a predetermined symbol or combination of symbols. As well as the predetermined prize winning combinations listed on the artwork 35 of top box 32. a special symbol display 33 is provided within the artwork panel to display a special symbol for use in determining additional winning combinations. Typically, the special symbol will be used as a wildcard symbol such that when a game is played any occurrence of the currently displayed wildcard symbol in the game display will count as any other symbol when determining if any winning combinations have occurred. In the embodiment of Figure 1, in the illustrated game the current special symbol displayed is a 7 and this may substitute for any other symbol, such as a King, to provide a
winning combination. In this case, the 7 combines with two Kings on the centre line which pays the same prize as three Kings.
In another game style, the special symbol is used to indicate a symbol that will pay a prize even if its occurrence is scattered across the display in an otherwise non-winning combination. Typically, to win a "scattered" prize there must be one occurrence of the symbol in each column of the display. In the embodiment of Figure 1, if the special symbol were used to provide a "scattered" function, a prize would be won for having scattered sevens (centre line of first column, top line of second column and bottom line of third column).
Many styles of bonus function are known in prior art slot machines, such as machines which provide free games when a particular combination is achieved. Typically, such bonus schemes are invoked when the player achieves a complete row of a particular predefined symbol. The special symbol display of the present invention can be used in such games to dynamically select the symbol that must be displayed to invoke the bonus scheme.
Jackpot machines are also known in which a jackpot prize builds up over a period of time, by incrementing the jackpot prize by a small amount each time a player plays the particular machine, or in the case of linked machines, every time a player plays one of the linked machines. The jackpot is typically awarded when a particular predetermined combination of symbols is displayed in a game. In embodiments of jackpot style games according to the present invention, the jackpot is won when a machine displays a predetermined combination including the special symbol displayed in display 33.
In the slot machine 20 illustrated in Figure 1, the game is initiated by a pull handle 34, however, it will be recognised by persons skilled in the art that this operating mechanism might be replaced by a push button actuator in other embodiments of the invention.
The top box 32 on top of the slot machine 20 carries the artwork panel 35 which displays the various winning combinations for which a prize is paid on this machine, and in particular includes a display window 33 in which is displayed the variable special symbol associated with each game and which may be used as a "wildcard", "scattered", "bonus", or "jackpot" symbol depending on the style of game provided on the machine. During
each operation of the machine the special symbol window will change to display a new special symbol valve, such as a seven, as illustrated in the example game displayed in Figure 1.
The special symbol may be calculated as a random number or alternatively it may be calculated using a formula based on pay history of the machine in which the feature is fitted, such that the percentage return of the machine may be regulated, by selecting special symbols having a higher probability of occurrence in a game, when the payout history of the machine has been low and by selecting special symbols having a lower probability of occurrence in a game when the payout history of the machine has been high. Turning to Figure 2, a video version of the embodiment of Figure 1 is illustrated, in which a slot machine 40 is provided with a video screen 41 on which spinning reels 42 are simulated, each of the spinning reels having a plurality of symbols 43 similar to the physical symbols in the embodiment of Figure 1. Games on this machine are initiated by operation of a button 44 below the video screen.
The top box 45 again carries an artwork panel 35 which displays information about prize winning combinations and in this instance would include information about the function of the special symbol but not the special symbol display 33 of Figure 1. Rather, the special symbol is displayed in a pseudo window 46 provided on the video screen.
While the embodiments described to this point have been for gaming machines of the type having rotating reels or simulated rotating reels, the invention is equally applicable to draw poker machines an example of which is illustrated in Figure 3. In this embodiment, the draw poker machine 60 is again provided with a video screen 41 on which are displayed five cards 61 drawn from a deck of 52 or 53 cards. The prizes displayed on artwork 35 of the top box 45 relate to standard poker hands, however, the special symbol feature of the present invention may also be provided either on a combination which is a standard winning poker hand or some other combination selected specifically for this special feature. For example, using the feature of a wildcard as our example, the prize might again be paid on the occurrence of a seven in any position on the screen which then substitutes as a King to provide a hand of four of a kind. In this instance again, the special symbol is displayed in a window 62 provided on the video screen.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
Claims
1. A gaming machine having display means, and game control means arranged to control images displayed on the display means, the game control means being arranged to play a game wherein a plurality of symbols are randomly selected and displayed on the display means and, if a winning combination results, the machine pays a prize, the game being characterised in that the gaming machine is provided with special symbol display means arranged to display a value of a special symbol to be used in the game, and the control means are arranged to select and display the special symbol on the special symbol display means during each game and to use the special symbol when determining if the plurality of symbols include a winning combination.
2. The gaming machine of claim 1 wherein the special symbol is a wildcard symbol such that when the special symbol occurs in a game it can substitute for any other symbol to form a winning combination.
3. The gaming machine of claim 1 wherein the special symbol is a scatter symbol such that when a scattered combination of the special symbol occurs in a game, with one such symbol in each column, but not all located in any one of the predetermined paying arrangements, a special "scattered" prize is awarded.
4. The gaming machine of claim 1 wherein the special symbol is a bonus symbol, such that if the special symbol is included in a winning combination respectively a bonus function or a jackpot function will be invoked.
5. The gaming machine of claim 1 wherein the special symbol is a jackpot symbol, such that if the special symbol is included in a winning combination respectively a bonus function or a jackpot function will be invoked.
6. The gaming machine as claimed in any one of the preceding claims wherein the display means comprises a set of rotatable reels, each carrying a plurality of symbols.
7. The gaming machine of claim 6 wherein an auxiliary display is provided to display the special symbol.
8. The gaining machine of claim 7 wherein the auxiliaiy display is a liquid crystal display built into the score card artwork.
9. The gaming machine as claimed in any one of claim 1 to 5 wherein the display means is a video display arranged to display a video simulation of a set of rotating reels.
10. The gaming machine as claimed in any one of claims 1 to 5 wherein the display means is a video display arranged to display a poker hand the cards of the hand being selected from a standard 52 or 53 card deck.
11. The gaming machine of claims 9 or 10 wherein the special symbol is displayed on the video screen when the winning symbol or combination is displayed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ331969A NZ331969A (en) | 1996-02-23 | 1997-02-21 | lot machine game with dynamic special symbols on a secondary display |
| AU17601/97A AU710015B2 (en) | 1996-02-23 | 1997-02-21 | Slot machine game with dynamic special symbols |
| US09/125,485 US6190254B1 (en) | 1996-02-23 | 1997-02-21 | Slot machine game with dynamic special symbols |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPN8276 | 1996-02-23 | ||
| AUPN8276A AUPN827696A0 (en) | 1996-02-23 | 1996-02-23 | Dynamic special symbols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997031344A1 true WO1997031344A1 (en) | 1997-08-28 |
Family
ID=3792588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AU1997/000103 WO1997031344A1 (en) | 1996-02-23 | 1997-02-21 | Slot machine game with dynamic special symbols |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6190254B1 (en) |
| AU (1) | AUPN827696A0 (en) |
| NZ (1) | NZ331969A (en) |
| WO (1) | WO1997031344A1 (en) |
| ZA (1) | ZA971470B (en) |
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| US6910963B1 (en) * | 1999-06-14 | 2005-06-28 | Konami Corporation | Game system, game control method, and computer-readable storage medium |
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| US8545307B2 (en) | 2011-09-27 | 2013-10-01 | Igt | Gaming system, gaming device, and method providing a game with multi-component symbols and awards based on common components |
| US8602869B2 (en) | 2011-09-27 | 2013-12-10 | Igt | Gaming system, gaming device, and method providing a game with multi-component symbols and awards based on common components |
| US9053613B2 (en) | 2011-09-27 | 2015-06-09 | Igt | Gaming system, gaming device, and method providing a game with multi-component symbols and awards based on common components |
Also Published As
| Publication number | Publication date |
|---|---|
| NZ331969A (en) | 2000-06-23 |
| AUPN827696A0 (en) | 1996-03-14 |
| US6190254B1 (en) | 2001-02-20 |
| ZA971470B (en) | 1997-08-28 |
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