Abstract:
A gaming system which displays a plurality of reels. Each reel is associated with a display area which displays a symbol. A wager is allocated to each one of the display areas. An award is determined based, at least in part, on such allocation.

Description:
PRIORITY CLAIM 
       [0001]    This application is a continuation of, and claims priority to and the benefit of, U.S. patent application Ser. No. 12/017,246, filed on Jan. 21, 2008, which is a continuation of, and claims priority to and the benefit of, U.S. patent application Ser. No. 10/861,072, filed on Jun. 3, 2004, now U.S. Pat. No. 7,387,570, which claims priority to and the benefit of United Kingdom Patent Application No. GB 0313012.7, filed on Jun. 6, 2003, the entire contents of each of which are incorporated herein by reference. 
     
    
     COPYRIGHT NOTICE 
       [0002]    A portion of the disclosure of this patent document contains or may contain material which is subject to copyright protection. The copyright owner has no objection to the photocopy reproduction by anyone of the patent document or the patent disclosure in exactly the form it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. 
       DESCRIPTION 
       [0003]    This invention relates to coin-operated player-operable entertainment machines, which may be gaming machines, such as so-called “fruit” or “poker” or “slot” machines, of the kind having a main display device operable, when actuated by a stake value, for play of a main game wherein symbols are selected and displayed at respective display positions at a win zone. As used herein, the term coin is intended also to cover tokens, charge or credit cards or any other means of supplying credit or monetary value. 
         [0004]    The main display device of a gaming machine may comprise multiple side-by-side reels which are rotatable about a common horizontal axis within a housing behind a window at the win zone. Each reel has symbols equally spaced around its periphery and the reels can be brought to rest with one or more symbols on each reel displayed at the respective display positions in the window. 
         [0005]    If the displayed combination of symbols at a predetermined combination of the display positions constitutes a predetermined winning combination an award may be made available to the player. 
         [0006]    The reels may be actual mechanical reels in which case there are typically three or four reels with say three symbols on each reel displayed through the window, when the reel is at rest, one on a central horizontal win line and the other two respectively above and below this win line whereby a displayed winning symbol combination on display positions on this win line results in an award. 
         [0007]    There may also be other win lines, horizontally above and below the central horizontal win line and/or vertically and/or diagonally whereby a displayed winning symbol combination on any of a selected combination of positions on any of a selected combination of such lines may result in an award. 
         [0008]    The reels may be video simulated reels in which case it is feasible to provide more reel displays, say five reels, with more combinations of symbol positions used for win determination, say up to 20 or more position combinations. 
       BACKGROUND OF THE INVENTION 
       [0009]    It is known to provide the player with the opportunity of selecting the range of combinations of symbol positions, or ‘pay lines’, to be used for win determination, an appropriate multiple of a basic stake value being required for multiple paylines. 
         [0010]    With such known machines an array or matrix of symbols is displayed to the player at the win zone. In the case of 4 reels each displaying 3 consecutive symbols a 3×4 matrix of 12 symbols is displayed. Each reel has a predetermined sequence of symbols, say 20 or 24 symbols, from which the group of 3 consecutive symbols is selected. The range of combinations within the matrix is thereby limited which consequently limits award possibilities and player entertainment. 
       SUMMARY 
       [0011]    An object of the present invention is to facilitate increase in range of combinations within such a symbol matrix thereby to enable award possibilities and player entertainment to be enhanced. 
         [0012]    According to one aspect of the invention therefore there is provided a coin-operated player-operable entertainment machine of the kind having a main display device operable, when actuated by a stake value, for play of a main game wherein symbols are selected and displayed at respective display positions within a matrix at a win zone, whereby an award is made available in correspondence with display of at least one predetermined winning combination of symbols at at least one predetermined combination of said displayed positions, characterised in that said symbols are selected from respective independent symbol sequences for the said respective display positions. 
         [0013]    With this arrangement, the resulting displayed matrix of symbols is derived using a respective symbol sequence for each display position, rather than using the same sequence for a group of such positions. An increased range of symbol combinations is therefore possible, whereby award possibilities and entertainment value can be enhanced. 
         [0014]    There may be any number of display positions which may be arranged in any suitable configuration. In one embodiment a 10×10 square matrix of 100 display positions is used. However other numbers of positions, and other configurations other than square can also be used. 
         [0015]    Most preferably there are multiple said predetermined combinations of display positions within the matrix which are used for win-determination. These combinations are preferably lines of display positions which may run in any one or more directions across the matrix e.g. vertical, horizontal, diagonal. These line combinations may each extend wholly across the matrix. Alternatively combinations may be used for win-determination which are not necessarily wholly across the matrix. Thus combinations are used which constitute any number of positions within a predetermined range, in a predetermined direction across the matrix. By way of example, any 3 or more consecutive positions in any horizontal, vertical, or diagonal line may be used. Alternatively, the player may receive awards for symbols that are scattered over the play area. 
         [0016]    The predetermined combination or combinations of display positions used for win-determination are preferably fixed. However, if desired, provision may be made for these to be changed on a random or other basis, or to be deliberately pre-selected, by the machine and/or by the player e.g. in correspondence with stake value selection. 
         [0017]    Where multiple combinations of display are used for win-determination the arrangement may be such that, in the case of multiple attained winning symbol combinations, the award corresponding to only one such winning combination, e.g. a highest such award, is made available. Alternatively or additionally multiple awards may be made available. 
         [0018]    Most preferably, multiple awards are made available, although in this case preferably at least some such awards have a value lower than the said game stake value. In this respect, the stake value may be related to the number of display positions and the awards may be multiples of the stake value proportion per position. Thus with a 10×10 matrix of 100 positions, a basic said stake value may be $1 i.e. 1 cent per position, and the award values may be multiples of 1 cent. 
         [0019]    Provision may be made for increasing stake value to effect corresponding multiplication of award values or to introduce new awards or symbols. 
         [0020]    The displayed symbols may also be used to initiate bonus or jackpot features additional or alternative to the aforesaid symbol-combination win-determination. Thus for example, a predetermined combination of predetermined symbols at predetermined positions may result in a jackpot or bonus win. The predetermined positions and symbols may be the same as those used for non-jackpot or bonus win-determination e.g. a partial or complete horizontal, vertical or diagonal line of ‘7’ symbols may result in a jackpot win. Alternatively or additionally, special predetermined symbols may be used for jackpot or bonus win-determination and the arrangement may be such that the jackpot or bonus is awarded if the special symbols are anywhere in the matrix or otherwise displayed not necessarily as required for the non-jackpot or bonus win-determination. Other jackpot or bonus or other supplementary features can also be provided e.g. 21 or more of the same symbol scattered about the play area may award a jackpot or other bonus. 
         [0021]    A bonus feature which may be initiated by a win, or a special symbol, or any other event, may be a number of free symbol selections, say ten selections, though any number of selections is possible. 
         [0022]    During these bonus selections, any displayed winning symbol combinations may be held over from that bonus selection to subsequent bonus selections. This would guarantee illumination of winning selections during the bonus feature. Alternatively, the player may be given the option to hold or discard the win in the hope of gaining a more lucrative win on a subsequent selection. 
         [0023]    For example if a winning combination of symbols is attained on the first of ten bonus selections, these symbols would be held in position for the remaining nine bonus selections, and illumination of winning selections on each of the nine remaining bonus selections would be guaranteed for the player. This increases player enjoyment due to the potential to win multiple prizes. 
         [0024]    In the case where the player has the option of increasing stake value, this may influence likelihood or value of a jackpot, bonus or other supplementary feature. 
         [0025]    With regard to the win-determination this may occur automatically i.e. by automatic operation of the machine, in that whenever a game results in display of symbols including one or more predetermined winning combinations the corresponding award or awards are automatically made available to the player. 
         [0026]    Alternatively, the arrangement may be such that partial or complete involvement of the player is required to identify the winning combination or combinations before the award or awards can be made available. Thus, the player may be required to indicate the display positions by using a keyboard, or touch screen or other device. The machine may provide assistance e.g. by indicating the nature of the winning combinations, by indicating some but not all of the winning combinations or otherwise. 
         [0027]    With regard to the symbol sequences for each display position these may be of any suitable length and may include any suitable number of different symbols e.g. 14 different symbols distributed throughout a sequence of 20 or 24 symbols. Selection of a symbol from the sequence may be effected in any suitable manner preferably on a random or pseudo random basis. 
         [0028]    The symbol sequences are preferably provided around the peripheries of respective actual or simulated rotatable reels whereby selection of a symbol at a matrix position involves a moving display of symbols at such position ending with one such symbol brought to rest at that position. Most preferably video-simulated reels are used whereby the entire matrix is defined by a video screen display. 
         [0029]    Awards made available to the player may be of a monetary nature or coins which can be credited for use in playing further games and/or which can be paid out to the player. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0030]      FIG. 1  is a diagrammatic front view of one form of a gaming machine according to the invention. 
           [0031]      FIG. 2  is an enlarged front view of a main display device of the machine. 
           [0032]      FIG. 3  is a diagrammatic block circuit diagram of the machine. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0033]    The invention will now be described further by way of example only and with reference to the accompanying drawings which, referring to  FIG. 1 , show a gaming machine having a housing  1  with an upper front panel  2 , operating buttons  3 , a coin slot  4  and a payout opening  5 . 
         [0034]    Within the housing  1  there is a vdu  6  such as a crt with a screen  7  which can be seen through a window  8  in the upper front panel  2 . 
         [0035]    The vdu  6  is connected within the housing  1  to a microprocessor-based control unit  9  as also are a coin mechanism  10 , a payout mechanism  11 , the operating buttons  3 , and alphanumeric digital (LED or LCD) devices  12 ,  13 ,  14  visible on the front panel  2  alongside the screen  7 . 
         [0036]    The screen  7  shows a square 10×10 matrix  15  of square display positions  16  each of which is capable of displaying a symbol  17  selected from a range of such symbols. As shown, in  FIG. 2 , the symbols  17  include a cherry picture, “7” in two different colours, one, two or three bars in three different colours, a special money bag picture, and a combination of “7” and BAR. 
         [0037]    In use, the player inserts coins into the coin mechanism  10  through the coin slot  4  sufficient to generate credit for play of one or more games. A minimum stake value of $1, i.e. 1 cent for each of the 100 matrix positions  16 , may be required. The total game play credit is shown on one of the digital devices  12 . By operating appropriate buttons  3  the player can use this credit as stake value for play of a game in multiples of $1. 
         [0038]    The stake value selected is shown on the device  14 . 
         [0039]    A game can now be started by pressing a start button  3 . 
         [0040]    This causes a respective moving display to be produced at each of the  100  display positions  16  of the matrix  15 . This display simulates rotation of a reel  20  having symbols  17  marked at equally spaced positions around its periphery. There may be say 14 different symbols in a sequence of 20 or 24 symbols (i.e. some symbols being repeated), and for each position  16  there may be the same or different such sequences. 
         [0041]    After a randomly selected period of time, rotation of each simulated reel stops so that one symbol  17  from its respective sequence is randomly selected and displayed at rest at the respective position  16 . The periods of time may be similar for each position  16  or may be selected in accordance with any desired pattern. 
         [0042]    The resulting static display of 100 symbols  17  is now assessed for win determination purposes along predetermined lines of positions  16  in the matrix  15 . These lines may be all horizontal, vertical and corner to corner diagonal lines i.e. 22 lines in total. 
         [0043]    Within each such predetermined line a combination of three or more identical symbols  17  at consecutive positions  16  constitutes a winning combination, with a corresponding award. 
         [0044]    Thus for example, credit units may be made available for award as follows: 
         [0000]    
       
         
               
               
               
               
             
           
               
                   
                   
               
             
             
               
                   
                 3 identical symbols 
                 2 
                 units 
               
               
                   
                 4 identical symbols 
                 10 
                 units 
               
               
                   
                 5 identical symbols 
                 50 
                 units 
               
               
                   
                 6 identical symbols 
                 500 
                 units 
               
               
                   
                 7 identical symbols 
                 1000 
                 units 
               
               
                   
                 8 identical symbols 
                 2000 
                 units 
               
               
                   
                 9 identical symbols 
                 5000 
                 units 
               
               
                   
                 10 identical symbols  
                 10000 
                 units 
               
               
                   
                   
               
             
          
         
       
     
         [0045]    The arrangement is such that the maximum award value is made available in any line having 3 or more consecutive identical symbols  12 . 
         [0046]    If two or more lines contain 3 or more consecutive identical symbols  17 , a corresponding award is made available for each such line. 
         [0047]    The value of the award units depend on the original stake value. Each unit is equal to 1 cent in the case where the minimum stake ($1) is wagered. If the minimum stake is multiplied to say $5, the unit value is 5 cents. 
         [0048]    Thus, there is the possibility of multiple awards being made available regularly without necessarily exceeding the stake value. By way of example, a bet of $1 could result in one 50 cent, three 10 cent and 4 2 cent wins which provides interest and entertainment to the player whilst retaining 12 cents of the stake value. 
         [0049]    When the game results in winning combinations, the corresponding award value may be automatically credited to the player and added to the credit value shown on the device  12 . At the same time the winning combinations may be highlighted by illumination or flashing of the positions  16  or otherwise. The accumulated credit value can be used by the player to fund further games and/or a payout of coins can be obtained by operating a payout button, such paid out value being transferred to the device  13 . 
         [0050]    Alternatively, the arrangement may be such that available award value is only credited after the player has correctly identified the winning combinations. Thus, when the static symbol display is produced the player may be required to indicate the combinations e.g. by touching the screen at the appropriate positions  16  to actuate touch screen controls. This may be done against a limit of time or otherwise. 
         [0051]    In this way the player has to find the combinations and derives further playing entertainment from this, essentially in the manner of a ‘wordsearch’ puzzle. 
         [0052]    Guidance may be given to help the player in finding the combinations e.g. by indicating the nature of the combinations on a screen display (not shown) or by highlighting one symbol from each combination or otherwise. The player may also be given the opportunity of deciding whether to rely on the machine, or to find the combinations independently of the machine, and the latter selection may involve an incentive. 
         [0053]    In addition to the above mentioned winning combinations, awards may also be made available in accordance with jackpot or bonus features, for example whenever the ‘money bag’ symbol  17  is displayed anywhere in the matrix  15 . 
         [0054]    The bonus feature may be a number of free symbol selections, say ten free selections. If during a free symbol selection a winning sequence of symbols  17  occurs along predetermined lines of display positions  16 , these symbols will be held over in position for subsequent free symbol selections during the bonus feature e.g. a winning sequence of symbols on the first of ten selections will be held in position for the remaining nine selections guaranteeing at least one winning outcome for the remaining spins. 
         [0055]    The arrangement is such that an award is guaranteed for each of the remaining subsequent free spins, enhancing player enjoyment due to multiple awards being made available. 
         [0056]    An increase in stake value may disproportionately increase likelihood or value of bonus or jackpot feature e.g. a five fold increase in stake value may give a 6 fold increase in jackpot value. 
         [0057]    With the embodiment described 100 symbols in a 10×10 matrix are independently randomly selected from respective symbol sequences. This gives a large number of different combinations which can be assessed for win determination along a large number of different win lines. 
         [0058]    This gives rise to increased award possibilities and consequent enhanced player interest and entertainment value. Moreover, much interest and entertainment can be derived from ‘finding’ the winning combinations in the matrix, in the manner of a word search puzzle, especially where the player is required to be involved in the identification of the combinations. 
         [0059]    It is of course to be understood that the invention is not intended to be restricted to the details of the above embodiment which are described by way of example only. Thus, for example, if desired, other distributions of positions may be used for win determination purposes e.g. diagonal not necessarily corner to corner, sequences not necessarily linear, etc.