Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20050119047 A1
Publication typeApplication
Application numberUS 10/990,129
Publication date2 Jun 2005
Filing date16 Nov 2004
Priority date8 Jul 1997
Also published asUS7056215, US7108603, US7575516, US7582014, US7625283, US8636586, US8663000, US9412241, US9558631, US9704339, US20050176488, US20050282609, US20060148558, US20060166730, US20060223614, US20070111785, US20100009740, US20120094736, US20130288783, US20140135099, US20160343210, US20170124807, US20170309123, WO1999003078A1
Publication number10990129, 990129, US 2005/0119047 A1, US 2005/119047 A1, US 20050119047 A1, US 20050119047A1, US 2005119047 A1, US 2005119047A1, US-A1-20050119047, US-A1-2005119047, US2005/0119047A1, US2005/119047A1, US20050119047 A1, US20050119047A1, US2005119047 A1, US2005119047A1
InventorsScott Olive
Original AssigneeAristocrat Leisure Industries Pty Ltd.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Slot machine game and system with improved jackpot feature
US 20050119047 A1
Abstract
Certain embodiments provide a method and system for awarding a progressive prize. The system includes a bank of gaming machines accepting different bets per play as selected by a player. A random number is selected from a predetermined fixed range of numbers that does not change during play of a gaming machine. The player is allotted one or more numbers for each credit bet. The allotted numbers represent a subset of the predetermined fixed range of numbers. A feature game is triggered for the progressive prize based on a numerical comparison between the selected random number and the number(s) allotted to the player. Certain embodiments provide a trigger condition for a feature outcome based on an event having a probability related to credits bet per game at a gaming machine. A probability of success in the feature game may be higher than a probability of success in the base game.
Images(4)
Previous page
Next page
Claims(21)
1-100. (canceled)
101. A method of awarding a progressive prize using a bank of gaming machines and a plurality of progressive prizes, each gaming machine accepting a plurality of different bet amounts, a bet amount being placed for each play of the gaming machine by the player, the method comprising:
allowing the player to place a bet amount at a gaming machine in the bank of gaming machines;
initiating play at the gaming machine, wherein the play includes play of a base game and play of a feature game;
playing the feature game, said step of playing the feature game including:
(1) providing a random probability of triggering play of the feature game, said feature game having an outcome, said random probability of triggering being dependent upon the amount of the bet by the player,
(2) triggering play of the feature game in response to said providing step; and
(3) awarding a progressive prize in accordance with an outcome of the feature game, said progressive prize being one of said plurality of progressive prizes.
102. The method of claim 101, wherein said step of initiating play at the gaming machine includes initiating play of said base game and said feature game at the same time.
103. The method of claim 101, wherein said step of providing a random probability of triggering the feature game includes:
(1) generating a random event;
(2) allotting to the player at least one wining event; and
(3) comparing the generated random event with the at least one winning event; and
wherein said step of triggering occurs in response to said step of comparing.
104. The method of claim 103, wherein said step of generating a random event includes generating a random number within a predetermined fixed range of numbers.
105. The method of claim 104, wherein said predetermined fixed range of numbers does not change during play of the feature game.
106. The method of claim 103, wherein said step of allotting includes allotting to the player at least one winning number from a predetermined fixed range of numbers.
107. The method of claim 106, wherein said at least one winning number represents a subset of the predetermined fixed range of numbers.
108. The method of claim 103, wherein said step of allotting includes allotting to the player at least one winning number in accordance with the bet amount placed by the player.
109. The method of claim 103, wherein said step of generating a random event includes generating a random number within a predetermined fix range of numbers; and wherein said step of allotting includes allotting at least one winning number from said predetermined fixed range of numbers; and wherein said step of comparing includes comparing the generated random number with the at least one winning number.
110. The method of claim 109, wherein the at least one wining number represents a subset of the predetermined fixed range of numbers.
111. The method of claim 109, wherein the step of comparing includes a mathematical comparison.
112. The method of claim 111, wherein the step of comparing includes a less than or equal to comparison.
113. The method of claim 111, wherein the step of comparing includes a greater than or equal to comparison.
114. The method of claim 101, wherein said step of allowing the player to place a bet amount includes allowing the player to select one of a plurality of bet amounts.
115. The method of claim 101, wherein the probability of a player being awarded a progressive prize from play of the feature game is greater than the probability of a player being awarded a prize from play of the base game.
116. The method of claim 101, wherein said step of triggering play of the feature game further comprises triggering play of one or more feature games in response to said providing step.
117. The method of claim 101, wherein the base game is a standard game normally offered on the gaming machine and the feature game is a jackpot game associated with the plurality of progressive prizes.
118. The method of claim 101, wherein the feature game provides a plurality of pseudo-reels with a restricted number of different symbols on each reel, and a progressive prize is awarded if after spinning the reels the same symbol appears on a win line of each reel.
119. The method of claim 118, wherein the plurality of progressive prizes are of unequal value and the symbols have different weightings on at least one reel.
120. The method of claim 101, wherein one or more of the plurality of progressive prizes is incremented based on the bet amount placed by the player.
Description
  • [0001]
    The present invention relates to apparatus for use with a system of linked poker machines and in particular the apparatus provides an improved jackpot mechanism for use with such a poker machine system.
  • BACKGROUND OF THE INVENTION
  • [0002]
    Many schemes have been devised in the past to induce players to play slot machines including schemes such as specifying periods during which jackpot prizes are increased or bonus jackpots paid. Other schemes involve awarding an additional prize to a first player to achieve a predetermined combination on a poker machine. These methods, while effective, add to club overheads because of the need for additional staff to ensure that the scheme is operated smoothly.
  • [0003]
    More recently, with the advent of poker machines linked through electrical networks it has been possible to automatically generate jackpot prizes on the basis of information received from the machines being played which are connected to the system and one such prior art arrangement, commonly known as “Cashcade™”, counts turnover on all machines in the network, increments a prize value in accordance with the turnover and pays the jackpot prize when the count reaches some predetermined and randomly selected number. In a more recent prior art arrangement, each game played on each machine in a gaming system is allocated a randomly selected number and the prize is awarded to a machine when the game number it is allocated matches a preselected random number.
  • [0004]
    In another recent prior art arrangement, the winning machine is selected by randomly selecting a number at a point in time and decrementing the number as games played on the system are counted until the number is decremented to zero at which time the game (or associated machine) causing the final decrement is awarded the jackpot.
  • [0005]
    With some prior art combination based trigger arrangements there is a serious disadvantage in that the player betting a single token per line, is just as likely to achieve a jackpot as the player playing multiple tokens per line. This has the effect of encouraging players playing for the bonus jackpot to bet in single tokens, rather than betting multiple tokens per game.
  • [0006]
    Jackpot games have traditionally been popular in Casinos. However, in their conventional format these games have inherent limitations:
      • (i) Games which use specific combinations of symbols to trigger jackpots are perceived by many players as being unwinnable. The games are typically designed in such a way that the big jackpots should not be won until large amounts are accumulated. With such low frequency the jackpots are never seen to be won by most players. Anecdotal evidence suggests that many players have learnt to disregard the chance of winning the major jackpots and are realistically playing for the lesser jackpots (ie the minor and mini jackpots). The increasing popularity of small mystery jackpots with higher frequencies of occurrence tends to support this argument;
      • (ii) Due to the increasing demand of players for a more complex and diverse game range, conventional jackpot games with combination triggers have become superseded. However, it is extremely complex to develop a wide variety of combinations which support both a feature game and mathematically exact jackpot triggers;
      • (iii) Typically, it would be expected that the game return (RTP) is independent of the number of coins bet per line. With conventional progressive jackpot games though, increasing the credits bet per line creates a relative disadvantage as far as RTP is concerned. Lets say the start-up amount for a feature jackpot is $10000. A player who is playing 1 credit per line has a chance for $10000 for each credit played, whereas a player playing 5 credits per line only has a chance for $2000 for each credit played. This creates a scale of diminishing returns. The smart player who gambles for the feature jackpot only, will always cover all playlines, but will only bet 1 credit per line because the prize paid for the feature jackpot is the same irrespective of the bet. This is supported by data collected from casinos;
      • (iv) Typical combination triggered progressive jackpots have fixed hit rates which removes from the operator's control the ability to vary jackpot frequency.
  • [0011]
    These arrangements have been in use in the State of New South Wales and in other jurisdictions for a considerable period of time, however, as with other aspects of slot machine games, players become bored with such arrangements and new and more innovative schemes become necessary in order to stimulate player interest.
  • [0012]
    In this specification, the term “combinations” will be used to refer to the mathematical definition of a particular game. That is to say, the combinations of a game are the probabilities of each possible outcome for that game.
  • SUMMARY OF THE INVENTION
  • [0013]
    According to a first aspect the present invention provides a random prize awarding system associated with a gaming console, the console being arranged to a offer a feature outcome when a game has achieved a trigger condition, the console including trigger means arranged to test for a trigger condition and to initiate the feature outcome when the trigger condition occurs, the trigger condition being determined by a event having a probability related to credits bet per game on the console.
  • [0014]
    According to a second aspect, the present invention provides a random prize awarding system associated with a network of gaming consoles, the system being arranged to offer a feature outcome on a particular console when a trigger condition occurs as a result of a game being played on the respective console the prize awarding system including trigger means arranged to test for a trigger condition and to initiate the feature outcome on the respective console when the trigger condition occurs, the trigger condition being determined by an event having a probability related to credits bet per game on the respective console.
  • [0015]
    According to a third aspect, the present invention provides a gaming console including a random prize awarding feature, the gaming console being arranged to offer a feature outcome when a game has achieved a trigger condition, the console including trigger means arranged to test for the trigger condition and to initiate the feature outcome when the trigger condition occurs, the trigger condition being determined by an event having a probability related to credits bet per game on the console.
  • [0016]
    According to a fourth aspect, the present invention provides a method of awarding a random prize associated with a gaming console arranged to offer a feature outcome when a game ahs achieved a trigger condition, the method including testing for a trigger condition and initiating the feature outcome when the trigger condition occurs, the trigger condition being determined by an event having a probability related to credits bet per game on the respective console.
  • [0017]
    Preferably the trigger condition is determined by an event having a probability related both to expected turnover between consecutive occurrences of the trigger condition, on the respective console and the credits bet on the respective game.
  • [0018]
    In a preferred embodiment of the invention, the trigger condition is determined by selecting a random number from a predetermined range of numbers to be associated with each bought game, and for each credit bet on the respective game, allotting to the game, one or more numbers from the predetermined range of numbers, and in the event that one of the numbers allotted to the player matches the randomly selected number, indicating that the trigger condition has occurred.
  • [0019]
    In one embodiment, one or more gaming consoles are connected in a gaming network, each of the consoles including signal output means arranged to produce an output signal in response to operation of the respective console, such that a central feature jackpot system connected to the network provides an incrementing jackpot which is increased in response to signals from the consoles connected to the network.
  • [0020]
    Preferably also, the console is arranged to play a first main game and the feature outcome initiated by the trigger condition is a second feature game.
  • [0021]
    The function of triggering a feature jackpot game may either be performed by a central feature game controller or may be performed within each console in the system.
  • [0022]
    In the preferred embodiment, the predetermined range of numbers is determined as a function of expected turnover between consecutive occurrences of the trigger condition, expected jackpot amounts and jackpot frequencies and will equal the expected average turnover per machine between successive initiations of progressive jackpot games divided by the credit value for that machine. For example, if the progressive jackpot is to be played for an average every $5,000 of turnover played and the credit value on the machine is $0.05, then the number range will be 1 to 100.000 (i.e. 5,000/0.05). In the preferred embodiment, the gaming machine will allocate the lowest numbers in the range to the player such that if the player plays 20 credits he will be allocated numbers 1-20 giving him a 1 in 5.000 chance of triggering a jackpot feature game.
  • [0023]
    Alternatively, the number range can be set to the average expected turnover between jackpot occurrences expressed in cents (500,000 in the above example), in which case the numbers allocated to the player, will be proportional to his total wager expressed in cents (i.e. 1-100 in the above example).
  • [0024]
    Preferably, the feature game is a simplified game having a higher probability of success than the first game. In a particularly preferred embodiment, the second game is a spinning reel game having a reduced number of symbols on each reel and a jackpot is activated if after spinning the reels a predetermined combination of symbols appears on the win line of each reel.
  • [0025]
    In one particular example, the second screen game is a five reel game with two different symbols on each reel. The symbols may be of equal value and equally weighted (i.e. same number of instances) on each reel or alternatively, the prizes might be of different values (eg: different fractions of the pool) and the symbols have different weightings on at least one reel.
  • [0026]
    Preferably, the prize awarded in a jackpot game by the system of the present invention, is a monetary amount the value of which is incremented with each game played on each gaming machine or console in the system. Alternatively, the incrementation can take place on a per token bet basis.
  • [0027]
    Where used above, the term ‘console’ is used to indicate a gaming machine, a gaming terminal or other device arranged to be connected to a communications system and to provide a user gaming interface. In the following description, examples are give[n] which are applicable to traditional slot machines, however the invention should be taken to include gaming systems which include user interfaces other than traditional slot machines.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0028]
    Embodiments of the invention will now be described by way of example, with reference to the accompanying drawings, in which:
  • [0029]
    FIG. 1 is a block diagram of a network of electronic gaming machines to which a mystery jackpot controller according to the present invention is connected;
  • [0030]
    FIG. 2 is a flow chart showing a game arrangement according to the invention; and
  • [0031]
    FIG. 3 shows an example of a 5 reel by 3 row window display.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0032]
    In a preferred embodiment of the invention, a new jackpot trigger mechanism provides the Casino operator with a far higher degree of flexibility. Unlike conventional combination triggered jackpots, the jackpots here are won from a feature game. The feature game is triggered randomly as a function of credits bet per game. When a feature is triggered, a feature game appears. Each jackpot can only be won from this feature game. During the feature game a second set of reel strips appears and a “spin and hold” feature game commences. The feature prize score is calculated by the total of the points appearing on the centre line of all 5 reels.
  • [0033]
    Feature jackpots in this format exhibit significant differences over previous jackpot systems:
      • (i) A jackpot game is provided which is compatible with any existing game combination within an installation independent of the platform, denomination or type of game (eg. slot machines, cards, keno, bingo or pachinko). This will allow for the linking of combinations between game type, platform type and denomination. Using this system, jackpot games can now be developed using specific combinations for the base game which were previously unsuitable for Link Progressive Systems. These games will compete with the appeal of the latest games on the market.
      • (ii) There is no longer a need to develop mathematically exact combinations in the base game.
      • (iii) Unlike the multiplier game in combination triggered jackpot embodiments, the present invention provides a direct relationship between the number of credits bet and the probability of winning the jackpot feature game on any one bought game. Betting 10 credits per line will produce ten times as many hits into the feature game than betting 1 credit per line. This is achieved by using a jackpot trigger which is directly related to the wager bet on a respective game and the turnover, instead of using conventional combination triggers.
      • (iv) Jackpot hit rates can now be changed without making changes to the base game. This was previously not possible using combination triggered jackpots.
      • (v) The jackpot feature system can be used across a wide-area-network (WAN), local-area-network (LAN), used as a stand-alone game independent of a network or used with a mystery jackpot. Flexibility is available to change combinations at will.
  • [0039]
    Referring to FIG. 1 a plurality of electronic gaming consoles 10 are connected to a network 11, to which a feature jackpot controller 12 and display means 13 are also connected.
  • [0040]
    Each of the electronic gaming consoles 10 are provided with a network interface arranged to provide a signal onto the network 11 on each occurrence of an operation of a respective console and the jackpot controller 12 is arranged to receive each of the console operation signals and to increment the value of a random jackpot prize on the occurrence of each of these operation signals.
  • [0041]
    A flow chart for a prize awarding algorithm is illustrated in FIG. 2.
  • [0042]
    Referring to the algorithm of FIG. 2, machine contributions go into the prize pool as with known prior art jackpot systems, while the overhead display shows the incrementing prize value.
  • [0043]
    In the EMG, an average value of machine turnover between jackpot hits, is programmed and is used to randomly generate trigger data for the jackpot feature games. In step 20 of the algorithm of FIG. 2, the actual number range and therefore probability of a feature jackpot game being awarded will depend upon the value of a credit in the particular machine and is calculated by dividing the turnover value by the value of a credit (eg., $5000/$0.05=100,000). The average turnover value is fixed for the EGMs and the random number generator is initialised (see step 20) at startup to generate numbers from the preprogrammed range determined from that value.
  • [0044]
    For every game that is played, a random trigger value is selected (see step 21) in the preprogrammed range as determined from the average turnover value. When the game is commenced, it is then reported (see step 22) to the controller, which allocates a contribution to the prize pool. Each game is also allotted (see step 23) numbers from the same number range that from which the random number was selected, one number in the range being allotted for each credit bet such that the player's probability of being awarded a jackpot feature game is proportional to the bet.
  • [0045]
    The previously selected random number is then used as a trigger value and compared with the values allotted to the player, if there is a match (see step 24) between the trigger value and the player values, the player is given an opportunity to play a jackpot feature game (see step 25). Alternatively, at step 23, a number is allocated which is equal to, or proportional to the number of credits bet in the respective game and in step 24, the trigger value is compared with the single player value and a jackpot feature awarded if the trigger value is less than or equal to the player value. It will be appreciated that this alternative arrangement is mathematically equivalent to the previously described arrangement, the range of numbers below the allotted number in the alternative arrangement being equivalent to the set of allotted numbers in the previously described arrangement.
  • [0046]
    In the preferred embodiment, a prize is always awarded in the jackpot feature game, the feature game being used to determine the size of the prize to be awarded (see step 27). The winning machine is then locked up (see step 28) and the controller awaits an indication that the prize has been paid before allowing the machine to be unlocked (see step 29). In some embodiments, the machine will not be locked up in steps 28 and 19, but instead the prize will simply be paid and the program will return to step 21. The machine then returns to step (see step 21) and commences a new game. If the trigger value does not match (see step 27) then there is no feature game awarded for that bought game and the machine returns to step (see step 22) and waits for the next game to commence.
  • [0047]
    By way of example, a feature game might be triggered by an EGM every $5000 of turnover played, which is equivalent to 100,000 credits on a $0.05 machine. This is referred to as the jackpot feature game hit rate in credits. A random number is generated within a prescribed range of numbers at the EGM at the commencement of each bought game. The prescribed range of numbers is determined by the jackpot feature game hit rate which has been determined previously, from typical values of casino turnover, expected jackpot amounts and jackpot frequencies. The prescribed range in this example is therefore 1 to 100,000 and before the commencement of each bought game a random number is generated within this range.
  • [0048]
    A bet of 20 credits will result in the numbers between 1 and 20 (inclusive) being allotted to the game (note that statistically it does not matter if the numbers are randomly selected or not or allotted as a block or scattered, the probability of a feature game being awarded is unchanged). If the number 7 is produced by the random number generator, then the feature game will be triggered. If any number between 21 and 100,000 is produced by the random number generator, the feature game will not be triggered. Similarly, a bet of 200 credits will result in the numbers between 1 and 200 (inclusive) being allotted to the game. If any number between 1 and 200 is produced by the random number generator, then the feature game will be triggered. If any number between 201 and 100,000 is produced by the random number generator, the feature game will not be triggered.
  • [0049]
    The example below has been developed using example turnover data. A trigger of the second screen feature game is expected every $5000 of turnover (ie. 100000 credits on a $0.05 machine). Increasing the number of credits bet increases the chance of triggering the feature on any bought game.
    Number of Range numbers Turnover of EGM
    credits bet assigned Games to hit Bet/game since last hit ($)
    1 1 to 1  100000 $0.05 $5000
    2 1 to 2  50000 $0.10 $5000
    3 1 to 3  33333.33 $0.15 $5000
    5 1 to 5  20000 $0.25 $5000
    10 1 to 10 10000 $0.50 $5000
    15 1 to 15 6666.66 $0.75 $5000
    20 1 to 20 5000 $1.00 $5000
    25 1 to 25 4000 $1.25 $5000
    30 1 to 30 3333.33 $1.50 $5000
    40 1 to 40 2500 $2.00 $5000
    45 1 to 45 2222.22 $2.25 $5000
    50 1 to 50 2000 $2.50 $5000
    60 1 to 60 1666.66 $3.00 $5000
    75 1 to 75 1333.33 $3.75 $5000
    100  1 to 100 1000 $5.00 $5000
    150  1 to 150 666.66 $7.50 $5000
    200  1 to 200 500 $10.00 $5000
  • [0050]
    Preferably, when a jackpot feature game is triggered, all players are alerted by a jackpot bell that a possible grand jackpot is about to be played for. This is done so that all players share in the experience of a jackpot win. Anecdotal evidence of players watching feature games being played in Australian casinos suggests that the drawing power of such games is immense.
  • [0051]
    Players are alerted by the jackpot bell instantaneously at any point during a game, but the future game will not appear until the current game (including base game features) are completed.
  • [0052]
    In this embodiment the feature game appears with the new reel strips already spinning and accompanying feature game tunes playing. The player stops the reels spinning by pressing the corresponding playline buttons in order. The feature prize score is calculated by the total of the points appearing on the centre line of all 5 reels. Across the top of the screen, a sum of the score is displayed.
  • [0000]
    The 4 feature prize meters in descending order of value are:
  • [0000]
    • (i) Grand Feature Prize. A score of ≧100 wins the grand feature jackpot;
    • (ii) Major Feature Prize. A score of 90-99 (inclusive) wins the major feature jackpot;
    • (iii) Minor Feature Prize. A score of 80-89 (inclusive) wins the minor feature jackpot;
    • (iv) Mini Feature Prize. A score of ≦79 wins the mini feature jackpot.
  • [0057]
    By way of example, referring to FIG. 3, a 5 reel by 3 row window is displayed. If the reels of the feature game stop on the numbers shown in FIG. 3, then the progressive jackpot won is the sum of the numbers on the center line ie, 12+10+18+13+22=75 which is within the range for the mini feature jackpot.
  • [0058]
    The instant the feature game is completed and the sum of scores from all 5 reels is shown, the feature jackpot screen and signs display which jackpot has been won. This celebration of the jackpot win is conducted in a traditional manner (i.e. flashing displays, jackpot alarms, music etc).
  • [0059]
    As the time between jackpot game awards is related to turnover, the number of jackpot games played by a player between feature games and hence their chance of winning is directly related to the size of each bet on each game played.
    • (1) All machines on the link have a feature game, be it a second screen animation game or a second set of reel strips.
    • (2) The link has a number of feature jackpot meters (up to 8). All feature jackpots may be linked.
    • (3) The feature game is activated as a function of machine turnover. This means that on average the feature game will occur one in, for example every $5000.00. There are a number of advantages of activating the feature game on turnover. For example, it enables for the first time, a relatively simple mechanism for allowing mixed denomination on a link. The feature game gives the player the chance of winning one of the available feature jackpots if a certain outcome appears. For example, a new set of reel strips might appear with only 2 or 4 different symbols: Jackpot 1, Jackpot 2, or (Jackpot 1, Jackpot 2, Jackpot 3, Jackpot 4). The first time 5 of the same appear on the centre line the stated feature jackpot is won.
    • (4) Another advantage of using a random trigger for a feature game, is that it can be applied to any game.
  • [0064]
    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.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US5645486 *23 Aug 19958 Jul 1997Sega Enterprises, Ltd.Gaming system that pays out a progressive bonus using a lottery
US5702304 *6 Jun 199530 Dec 1997Acres Gaming, Inc.Method and apparatus for operating networked gaming devices
US5707285 *6 Dec 199613 Jan 1998Place; VaughnMethod and apparatus for random prize selection in wagering games
US5722891 *7 Mar 19953 Mar 1998Eagle Co., Ltd.Slot machine having two distinct sets of reels
US6050895 *24 Mar 199718 Apr 2000International Game TechnologyHybrid gaming apparatus and method
US6135884 *8 Aug 199724 Oct 2000International Game TechnologyGaming machine having secondary display for providing video content
US6592460 *5 Jun 200115 Jul 2003Lawrence J. TorangoProgressive wagering system
US7056215 *8 Jul 19986 Jun 2006Aristocrat Leisure Industries Pty Ltd.Slot machine game and system with improved jackpot feature
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US73744863 Oct 200520 May 2008IgtGaming device having odds of winning which increase as a player's wager increases
US746522714 Apr 200816 Dec 2008IgtGaming device having odds of winning which increase as a player's wager increases
US747018511 Apr 200830 Dec 2008IgtGaming device having odds of winning which increase as a player's wager increases
US75071566 Jun 200524 Mar 2009IgtGaming device providing an opportunity to receive awards which vary with different non-max bets
US760106017 Jun 200313 Oct 2009IgtMethod of operating a progressive gaming device
US765489630 Jul 20072 Feb 2010IgtGaming system which provides multiple players multiple bonus awards
US766608115 Aug 200523 Feb 2010IgtGaming system having multiple gaming machines which provide bonus awards
US76660932 Aug 200523 Feb 2010IgtGaming method and device involving progressive wagers
US766609430 Jul 200723 Feb 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US767417830 Jul 20079 Mar 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US767417930 Jul 20079 Mar 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US76779716 Jun 200716 Mar 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US767797230 Jul 200716 Mar 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US76822486 Jun 200723 Mar 2010IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US769097730 Jul 20076 Apr 2010IgtGaming system and method for providing multiple players multiple bonus awards
US76996983 Jun 200420 Apr 2010IgtGaming machine and method involving a selectable bonus evaluation system
US771312430 Jul 200711 May 2010IgtGaming system and method for providing group play with divided bonus features
US772246430 Jul 200725 May 2010IgtGaming system which provides multiple players multiple bonus awards
US772707019 Feb 20041 Jun 2010IgtMethod and apparatus for authenticating and verifying communication on a network of gaming devices
US77537827 Nov 200613 Jul 2010IgtGaming system and method for providing multiple players multiple bonus awards
US775378330 Jul 200713 Jul 2010IgtGaming system and method for providing multiple players multiple bonus awards
US775378424 Aug 200913 Jul 2010IgtGaming device having progressive awards and supplemental awards
US778052015 Mar 200624 Aug 2010IgtGaming device having multiple different types of progressive awards
US778052330 Jul 200724 Aug 2010IgtServer based gaming system having multiple progressive awards
US77897556 Nov 20067 Sep 2010IgtGaming system and method having award distribution using shares
US779432227 Sep 200214 Sep 2010IgtSystem for awarding a bonus to a gaming device on a wide area network
US78197457 Nov 200626 Oct 2010IgtGaming system which provides multiple players multiple bonus awards
US781974616 Sep 200326 Oct 2010IgtSystem for awarding a bonus to a gaming device on a wide area network
US782864311 Apr 20089 Nov 2010IgtGaming device having odds of winning which increase as a player's wager increases
US78286497 Nov 20069 Nov 2010IgtGaming system and method for providing group play with divided bonus features
US78419395 Sep 200630 Nov 2010IgtServer based gaming system having multiple progressive awards
US785465415 Aug 200521 Dec 2010IgtGaming system having multiple gaming machines which provide bonus awards
US78576991 Nov 200628 Dec 2010IgtGaming system and method of operating a gaming system having a bonus participation bidding sequence
US789209311 Oct 200622 Feb 2011IgtGaming system having multiple gaming machines which provide bonus awards
US790128214 Jul 20068 Mar 2011IgtGaming device having competitive/bonus matching game
US79057772 Aug 200615 Mar 2011IgtMethods and apparatus for auctioning an item via a gaming device
US790577830 Jul 200715 Mar 2011IgtServer based gaming system having multiple progressive awards
US79143777 Nov 200629 Mar 2011IgtGaming device with dynamic progressive and bonus architecture
US794273726 Oct 200617 May 2011IgtGaming device having a game with multiple selections and progressive game incrementation
US79638458 Nov 200621 Jun 2011IgtGaming system and method with multiple progressive award levels and a skill based determination of providing one of the progressive award levels
US796384730 Jul 200721 Jun 2011IgtGaming system having multiple gaming machines which provide bonus awards
US79676778 Nov 200628 Jun 2011IgtGaming system and method for providing virtual drawings
US797637811 Apr 200812 Jul 2011IgtGaming device having odds of winning which increase as a player's wager increases
US798513330 Jul 200726 Jul 2011IgtGaming system and method for providing an additional gaming currency
US801201422 Aug 20066 Sep 2011IgtGaming system having awards provided based on rate of play
US802123030 Jul 200720 Sep 2011IgtGaming system having multiple gaming machines which provide bonus awards
US803390310 Nov 200611 Oct 2011IgtGaming system and method having progressive free games
US807058726 Oct 20076 Dec 2011IgtGaming system and method providing a multiplayer bonus game having a plurality of award opportunities
US80705973 Aug 20066 Dec 2011IgtGaming device and method having multiple progressive award levels and a secondary game for advancing through the progressive award levels
US80835787 Sep 200627 Dec 2011IgtMultiplay poker wagering game with payout differentiating display of probabilities
US809229712 Jun 200810 Jan 2012IgtGaming system and method for providing a bonus based on number of gaming machines being actively played
US80922995 Nov 200910 Jan 2012IgtGaming system and method for normalizing average expected payouts to players
US809230212 Nov 200810 Jan 2012IgtGaming system, gaming device and method providing tiered progressive bonusing system
US809687427 Sep 200717 Jan 2012IgtGaming system and method having progressive awards with meter increase events
US810514910 Nov 200631 Jan 2012IgtGaming system and method providing venue wide simultaneous player participation based bonus game
US81139398 Sep 200614 Feb 2012IgtGaming device and method providing relatively large awards with variable player participation levels
US811866913 Jan 200921 Feb 2012IgtSystem and method for providing poker player tracking and bonus events
US812360415 Dec 200528 Feb 2012IgtGaming system with card game and post round of play display of tracked cards
US81284915 Sep 20066 Mar 2012IgtServer based gaming system having multiple progressive awards
US812849230 Jul 20076 Mar 2012IgtServer based gaming system having multiple progressive awards
US813717417 Oct 200720 Mar 2012IgtGaming system, gaming device, and method providing multiple hand card game
US81371885 Sep 200620 Mar 2012IgtServer based gaming system having multiple progressive awards
US815261530 Jul 200710 Apr 2012IgtGaming system with blackjack primary game and poker secondary game
US815263013 Nov 200810 Apr 2012IgtGaming system and method having bonus event and bonus event award in accordance with a current wager and one or more accumulated bonus event points
US815763130 Jul 200717 Apr 2012IgtGaming system with blackjack primary game and poker secondary game
US815764614 Apr 200917 Apr 2012IgtGaming system and method for providing a progressive award multiple times before resetting the displayed value of the provided progressive award
US816274628 Sep 200724 Apr 2012IgtGaming system and method configured to change the odds of a player obtaining a winning game outcome or a designated game outcome for a play of a game without changing the paytable of the game
US816770931 Jan 20111 May 2012IgtMethods and apparatus for auctioning an item via a gaming device
US816771114 Apr 20081 May 2012IgtGaming device having odds of winning which increase as a player's wager increases
US817266030 Jul 20078 May 2012IgtGaming system with blackjack primary game and poker secondary game
US819733729 Oct 200712 Jun 2012IgtGaming system and method for providing multi-level personal progressive awards
US8202153 *15 Jan 200819 Jun 2012IgtGaming device having wager dependent bonus game play
US82109375 Apr 20113 Jul 2012IgtGaming device having a game with multiple selections and progressive game incrementation
US821606030 Jul 200710 Jul 2012IgtGaming system having multiple gaming machines which provide bonus awards
US82160626 May 201110 Jul 2012IgtGaming system and method for providing an additional gaming currency
US82160655 Sep 200610 Jul 2012IgtGaming system having multiple adjacently arranged gaming machines which each provide a component for a multi-component game
US823145325 Aug 200931 Jul 2012IgtGaming system, gaming device and method for providing a player an opportunity to win a designated award based on one or more aspects of the player's skill
US823580830 Jul 20077 Aug 2012IgtGaming system having multiple gaming machines which provide bonus awards
US825179130 Jul 200728 Aug 2012IgtGaming system having multiple gaming machines which provide bonus awards
US828247217 May 20119 Oct 2012IgtGaming system and method for providing virtual drawings
US832309222 Dec 20114 Dec 2012IgtGaming system and method for normalizing average expected payouts to players
US83286315 May 201111 Dec 2012IgtGaming system and method with multiple progressive award levels and a skill based determination of providing one of the progressive award levels
US832863322 Dec 201111 Dec 2012IgtGaming system and method for normalizing average expected payouts to players
US833729820 May 201025 Dec 2012IgtGaming device having multiple different types of progressive awards
US834295816 Dec 20111 Jan 2013IgtGaming system, gaming device and method providing tiered progressive bonusing system
US83487533 Aug 20118 Jan 2013IgtGaming system having awards provided based on rate of play
US835375110 Apr 200715 Jan 2013IgtGaming device and method for providing multiple-hand poker game
US837193112 Dec 201112 Feb 2013IgtGaming system and method for providing a bonus based on number of gaming machines being actively played
US83768367 Nov 200819 Feb 2013IgtServer based gaming system and method for providing deferral of bonus events
US839395827 Mar 201212 Mar 2013IgtGaming system and method having bonus event and bonus event award in accordance with a current wager and one or more accumulated bonus event points
US840373914 Dec 201126 Mar 2013IgtMultiplay poker wagering game with payout differentiating display of probabilities
US84089938 Jan 20102 Apr 2013IgtGaming method and device involving progressive wagers
US840899417 Feb 20102 Apr 2013IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US843074730 Jul 200730 Apr 2013IgtGaming system having multiple gaming machines which provide bonus awards
US844448030 Jul 200721 May 2013IgtGaming system having multiple gaming machines which provide bonus awards
US844936410 Apr 201228 May 2013IgtGaming system with blackjack primary game and poker secondary game
US844938030 Jul 200728 May 2013IgtGaming system having multiple gaming machines which provide bonus awards
US844938822 Dec 201128 May 2013IgtGaming system and method having progressive awards with meter increase events
US845442729 May 20124 Jun 2013IgtGaming device having wager dependent bonus game play
US847526211 Jul 20122 Jul 2013IgtGaming system, gaming device and method for providing a player an opportunity to win a designated award based on one or more aspects of the player's skill
US848588827 Mar 201216 Jul 2013IgtGaming device having odds of winning which increase as a player's wager increases
US849139023 Sep 201123 Jul 2013IgtGaming system and method having progressive free games
US849652027 Mar 201230 Jul 2013IgtGaming system and method configured to change the odds of a player obtaining a winning game outcome or a designated game outcome for a play of a game without changing the paytable of the game
US85005488 Nov 20076 Aug 2013IgtGaming system and method for providing team progressive awards
US85121212 Jul 201220 Aug 2013IgtGaming system having multiple adjacently arranged gaming machines which each provide a component for a multi-component game
US851782810 Apr 201227 Aug 2013IgtGaming system and method for providing multi-level personal progressive awards
US852366511 Oct 20063 Sep 2013IgtGaming system and method having multi-level mystery triggered progressive awards
US854531222 Sep 20111 Oct 2013IgtGaming system, gaming device, and method changing awards available to be won in pending plays of a game based on a quantity of concurrently pending plays of the game
US854531628 Mar 20121 Oct 2013IgtGaming system and method for providing a progressive award multiple times before resetting the displayed value of the provided progressive award
US85453217 Nov 20081 Oct 2013IgtGaming system having user interface with uploading and downloading capability
US855671030 Jul 200715 Oct 2013IgtGaming system having multiple gaming machines which provide bonus awards
US860288327 Nov 201210 Dec 2013IgtGaming system, gaming device and method providing tiered progressive bonusing system
US861364921 Dec 201224 Dec 2013IgtGaming system having awards provided based on rate of play
US862839621 Feb 201314 Jan 2014IgtMultiplay poker wagering game with payout differentiating display of probabilities
US863239430 Mar 201221 Jan 2014IgtMethods and apparatus for auctioning an item via a gaming device
US86323966 Nov 201221 Jan 2014IgtGaming system and method for normalizing average expected payouts to players
US867891821 Jun 201225 Mar 2014IgtGaming device having a game with multiple selections and progressive award incrementation
US870248821 Feb 201222 Apr 2014IgtServer based gaming system having multiple progressive awards
US870880422 Jun 201229 Apr 2014IgtGaming system and method providing a collection game including at least one customizable award collector
US872785113 Feb 201220 May 2014IgtGaming system, gaming device, and method providing multiple hand card game
US872785418 Jul 200720 May 2014Konami Gaming, IncSystem and method for operating a matching game in conjunction with a transaction on a gaming machine
US872787130 Jul 201020 May 2014IgtGaming system having multiple gaming machines which provide bonus awards
US875319618 Dec 201217 Jun 2014IgtGaming device having multiple different types of progressive awards
US875319716 Apr 201317 Jun 2014IgtGaming system having multiple gaming machines which provide bonus awards
US8758123 *21 Sep 200724 Jun 2014Wms Gaming Inc.Gaming network with associated community/progressive features
US876455227 Jun 20131 Jul 2014IgtGaming system, gaming device and method for providing a player an opportunity to win a designated award based on one or more aspects of the player's skill
US87950581 Oct 20085 Aug 2014IgtGaming system and method having player accumulated points and determining each player's chances of winning an award based on the accumulated points
US880152011 Mar 201312 Aug 2014IgtGaming method and device involving progressive wagers
US881464812 Jul 201226 Aug 2014IgtGaming system having multiple gaming machines which provide bonus awards
US88645746 Feb 201321 Oct 2014IgtGaming system and method having bonus event and bonus event award in accordance with a current wager and one or more accumulated bonus event points
US886457516 Apr 201321 Oct 2014IgtGaming system having multiple gaming machines which provide bonus awards
US887064519 Dec 201228 Oct 2014IgtServer based gaming system and method for providing deferral of bonus events
US887659130 Jul 20074 Nov 2014IgtGaming system having multiple gaming machines which provide bonus awards
US890005224 Dec 20132 Dec 2014IgtGaming system and method for normalizing average expected payouts to players
US891129011 Sep 201316 Dec 2014IgtGaming system, gaming device, and method changing awards available to be won in pending plays of a game based on a quantity of concurrently pending plays of the game
US90050146 Nov 201214 Apr 2015IgtGaming system and method with multiple progressive award levels and a skill based determination of providing one of the progressive award levels
US900501520 Dec 201214 Apr 2015IgtGaming system having multiple gaming machines which provide bonus awards
US90477338 Nov 20062 Jun 2015IgtGaming system and method for providing multiple level progressive awards with increased odds of winning higher level progressive awards
US905360212 Apr 20119 Jun 2015IgtFlexible determination of progressive awards
US906437924 Apr 201323 Jun 2015IgtGaming system and method for providing a progressive award multiple times before resetting the displayed value of the provided progressive award
US90929411 Mar 201328 Jul 2015IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US909896812 Feb 20144 Aug 2015IgtGaming system and method for accumulating and redeeming community game tokens
US91591962 Apr 201413 Oct 2015IgtServer based gaming system having multiple progressive awards
US91714222 Dec 201327 Oct 2015IgtGaming system having awards provided based on rate of play
US917744230 Jan 20123 Nov 2015IgtGaming device and method providing relatively large awards with variable player participation levels
US91774442 Dec 20133 Nov 2015IgtGaming system, gaming device and method providing tiered progressive bonusing system
US92023384 Aug 20141 Dec 2015IgtGaming method and device involving progressive wagers
US92023467 May 20131 Dec 2015IgtGaming device having wager dependent bonus game play
US92140655 Jun 201415 Dec 2015IgtGaming device having multiple different types of progressive awards
US92242669 Apr 201429 Dec 2015IgtGaming system having multiple gaming machines which provide bonus awards
US925165620 May 20152 Feb 2016IgtGaming system and method for providing multiple level progressive awards with increased odds of winning higher level progressive awards
US926921313 Dec 201123 Feb 2016IgtGaming system and method for providing a bonus based on number of gaming machines being actively played
US92867622 Apr 201415 Mar 2016Konami Gaming, Inc.System and method for operating a matching game in conjunction with a transaction on a gaming machine
US929300713 May 201522 Mar 2016IgtGaming system and method for providing a progressive award multiple times before resetting the displayed value of the provided progressive award
US934295624 Feb 201217 May 2016IgtGaming system, gaming device and method for shifting progressive award contribution rates
US937861827 Jul 201528 Jun 2016IgtGaming system and method for accumulating and redeeming community game tokens
US939058517 Jul 201312 Jul 2016IgtGaming system and method for providing team play benefits
US93966063 Jul 201219 Jul 2016IgtGaming system and method for providing an additional gaming currency
US940619216 Nov 20152 Aug 2016IgtGaming device having wager dependent bonus game play
US947206012 Mar 201318 Oct 2016IgtGaming system and method for providing team progressive awards
US950822424 Nov 201429 Nov 2016IgtPlayer specific network
US95146156 May 20116 Dec 2016Aristocrat Technologies Australia Pty LimitedSliding jackpot probabilities
US9520027 *13 May 201313 Dec 2016Universal Entertainment CorporationGaming machine, gaming system, and gaming method
US952461425 Sep 201220 Dec 2016IgtGaming system and method for permanently increasing the average expected payback percentage of a game for a player
US952461712 Mar 201320 Dec 2016IgtGaming system and method for providing team progressive awards
US953639428 Jan 20163 Jan 2017IgtGaming system and method for providing awards
US955863014 Jul 201531 Jan 2017IgtGaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
US956401416 Sep 20157 Feb 2017IgtServer based gaming system having multiple progressive awards
US956993013 Jul 201614 Feb 2017IgtGaming system and method for providing an additional gaming currency
US960096812 Jul 201221 Mar 2017IgtGaming system having multiple gaming machines which provide bonus awards
US96134941 Aug 20144 Apr 2017IgtGaming system and method having player accumulated points and determining each player's chances of winning an award based on the accumulated points
US962683329 Oct 201518 Apr 2017IgtGaming system, gaming device and method providing tiered progressive bonusing system
US964001731 Aug 20052 May 2017IgtGaming system and method employing rankings of outcomes from multiple gaming machines to determine awards
US96594405 May 201423 May 2017IgtGaming system, gaming device, and method providing multiple hand card game
US9679433 *20 Aug 200813 Jun 2017Aristocrat Technologies Australia, Pty. LimitedMethod of gaming, a gaming system and a game controller
US96850392 Mar 201620 Jun 2017IgtGaming system and method which provides players an opportunity to win a progressive award
US977337723 Jun 201626 Sep 2017IgtGaming system and method for accumulating and redeeming community game tokens
US97861204 Nov 201610 Oct 2017IgtPlayer specific network
US979916710 Mar 201624 Oct 2017IgtGaming system and method for providing a progressive award multiple times before resetting the displayed value of the provided progressive award
US20010055990 *6 Jun 200127 Dec 2001Acres Gaming IncorporatedMethod and apparatus for controlling the cost of playing an electronic gaming device
US20020058546 *6 Jun 200116 May 2002Acres Gaming IncorporatedMethod and apparatus for controlling the cost of playing an electronic gaming device
US20030216166 *17 Jun 200320 Nov 2003Baerlocher Anthony J.Method of operating a progressive gaming device
US20040048644 *6 Sep 200211 Mar 2004Peter GerrardGaming device having a progressive award funded through skill, strategy or risk gaming event
US20040048649 *6 Sep 200211 Mar 2004Peterson Tonja M.Gaming device having a bonus game with multiple player selectable award opportunities
US20050059480 *10 Sep 200417 Mar 2005Konami Gaming, Inc.System and method for awarding incentive awards to a player of a gaming device
US20050282625 *6 Jun 200522 Dec 2005Nicely Mark CMulti-wager game of chance with "As Is" prize on non-max bet
US20060030399 *3 Oct 20059 Feb 2006IgtGaming device having odds of winning which increase as a player's wager increases
US20060131809 *15 Dec 200522 Jun 2006Lancaster Eric WGaming system with blackjack primary game and poker secondary game
US20060135254 *16 Dec 200522 Jun 2006Alfred ThomasGaming terminal with special-event wager having different denomination increment than basic wagering game
US20060183535 *5 Jan 200617 Aug 2006Marks Daniel MGaming device and method having payline progressive awards
US20060223615 *9 Mar 20065 Oct 2006Wms Gaming Inc.Wagering game having a ramping bonus feature
US20060258429 *12 Apr 200616 Nov 2006Manning Gregory PSystem and method for providing a multiple-stage contest
US20080108429 *6 Nov 20068 May 2008IgtGaming system and method having award distribution using shares
US20080113759 *15 Jan 200815 May 2008IgtGaming device having wager dependent bonus game play
US20080194316 *11 Apr 200814 Aug 2008IgtGaming device having odds of winning which increase as a player's wager increases
US20080214021 *10 Jan 20084 Sep 2008Semiconductor Energy Laboratory Co., Ltd.Method of crystallizing semiconductor film and method of manufacturing semiconductor device
US20090088252 *28 Sep 20072 Apr 2009IgtGaming system and method configured to change the odds of a player obtaining a winning game outcome or a designated game outcome for a play of a game without changing the paytable of the game
US20090124363 *8 Nov 200714 May 2009IgtGaming system and method for providing team progressive awards
US20090124365 *12 Nov 200714 May 2009Andrzej SurmaczMethod and apparatus for a bonus game having a progressive prize
US20090191956 *1 Aug 200830 Jul 2009Aristocrat Technologies Australia Pty LimitedGaming system and a method of gaming
US20090209315 *20 Aug 200820 Aug 2009Aristocrat Technologies Australia Pty LimitedMethod of gaming, a gaming system and a game controller
US20100081497 *1 Oct 20081 Apr 2010IgtGaming system and method having player accumulated points and determining each player's chances of winning an award based on the accumulated points
US20100087256 *21 Sep 20078 Apr 2010Wms Gaming Inc.Gaming Network with Associated Community/Progressive Features
US20110159949 *9 Nov 201030 Jun 2011Paul Francis Jason BrambleMethod of gaming, a game controller and a prize controller
US20140335946 *13 May 201313 Nov 2014Aruze Gaming America, Inc.Gaming machine, gaming system, and gaming method
US20160217646 *28 Jan 201528 Jul 2016Wms Gaming Inc.Association or linking of symbol bearing array elements in a gaming machine
Classifications
U.S. Classification463/27
International ClassificationG07F17/32, A63F13/00, A63F, G07F, G07F17/34, A63F13/10, A63F5/04, G07C, A63F13/12, G06F
Cooperative ClassificationG07F17/3213, G07F17/34, G07F17/3258, G07F17/3225, G07F17/32, G07F17/3244
European ClassificationG07F17/32K12, G07F17/32