`(19) AUSTRALIAN PATENT OFFICE
`
`(11) Application No. AU 199880869 B2
`(10) Patent No. 721645
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`Title
`Method, software and apparatus for a robust simulation of a slot machine game
`
`International Patent Classification(s)
`A63F 005/04
`G06F 019/00
`
`Application No: 199880869
`
`(22) Application Date: 1998.08.13
`
`Priority Data
`
`Number
`PO5757
`
`(32) Date
`1997.03.24
`
`(33) Country
`AU
`
`1999.04.01
`Publication Date :
`Publication Journal Date : 1999.04.01
`2000.07.13
`Accepted Journal Date :
`
`Applicant(s)
`Access Systems Pty Limited
`
`Inventor(s)
`Stephen Patrick Mulcahy; Scott Robert Finlayson; Michael Neil Low
`
`Agent/Attorney
`PETER MAXWELL and ASSOCIATES,PO Box R1466 Royal Exchange,SYDNEY
`NSW 1225
`
`Related Art
`AU 48323/97
`US 6042478
`
`
`
`EDITORIAL NOTE
`
`APPLICATION NUMBER - 80869/98
`
`This specification does not contain an Abstract page.
`
`
`
`AUSTRALIA
`
`Patents Act 1990
`
`Stephen Patrick Mulcahy
`Scott Robert Finlayson
`Michael Neil Low
`
`Access Systems Pty. Limited
`ACN: 052 539 090
`
`Inventor:
`
`Applicant:
`
`Invention Title:
`
`METHOD, SOFTWARE AND APPARATUS FOR A
`ROBUST SIMULATION OF A SLOT MACHINE GAME
`
`• · · ·
`• · ·
`
`Author: Stephen Mulcahy
`Θ Access Systems Ply. Limited
`
`Page 1 of 16
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`FIELD OF THE INVENTION
`
`The invention pertains to methods of electronic gaming and more particularly to a computer
`network implementation of a slot machine.
`
`BACKGROUND OF THE INVENTION
`
`Entertainment services, particularly gaming services, are among the most economically viable
`forms of commerce being transacted on computer networks such as the Internet. Lottery games,
`casino games, gambling and games of chance in general are well represented in the electronic
`traffic traversing the global networks. The demand exists for ever more entertaining and
`innovative implementations of games and games which can be marketed to the widest possible
`audience. In particular, popular or well known games or their variants are desirable because they
`can be played without the need for extensive player instruction and because people tend to prefer
`games they know and understand.
`
`Slot machines are one of the most popular games of chance. Slot machines are played, in various
`forms, across the world. Professional market research has indicated an enormous demand for
`slot machine like products which could be delivered to and played with a networked computer.
`One technical challenge is to devise methods of processing and displaying information in a
`manner which suits the player in an Internet or other network environment. Other challenges
`relate to the specifics of accountancy and record keeping with regard to a players account, which
`account is kept electronically and reliably in a situation where data flow over the network can
`become interrupted or cease without warning. Another challenge is to devise a system of display
`which mimics, as closely as possible, the appearance of a physical slot machine and which meets
`player ( and web site operator’s) expectations for realism, speed of play and entertainment value.
`
`The other problem to solve is to design an entertainment presentation that had a basis in
`conventional presentation, but which also includes certain novel elements in the delivery of a
`bonus.
`
`OBJECTS AND SUMMARY OF THE INVENTION
`
`It is an object of the invention to provide a device for playing a slot machine-like game, software
`for executing the implementation of this game and the necessary interface for player operation.
`
`In summary, a Java applet displays a game on a player’s screen. The player makes a request, in
`one form or another, to a game server. A game server delivers a “ticket” to the player’s
`computer. For the purpose of this disclosure, a “ticket” is a digital electronic message which
`provides, when decoded, data in a pre-determined format which can be interpreted by the applet.
`Directly upon issuing the ticket, the game server accounts for the play, it having calculated the
`end result before issuance. In response to the ticket, the applet alters the display in a number of
`unique ways.
`
`In a preferred form, the ticket includes both general and specific data.
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`Page 2 of 16
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`In another preferred form, the player’s’s request includes both general and specific data.
`
`BRIEF DESCRIPTION OF THE DRAWING FIGURES
`
`Figure 1 is a depiction of a screen display of a three reel slot machine simulation on a PC..
`Figure 2 is a depiction like Figure 1 showing a bonus winning display.
`Figure 3 is a depiction of a bonus screen display prior to a bonus award.
`Figure 4 is a depiction of a bonus screen display after a bonus award.
`Figure 5 is a of a frame of a possible bonus screen animation after a bonus award.
`
`BEST MODE AND OTHER EMBODIMENTS OF THE INVENTION
`
`The invention pertains, in part, to the software and hardware required to implement a simulation
`of a existing type of gaming machine on a PC. In this particular example, a three reel slot
`machine is discussed. The three reel slot machine is one that is familiar to many people and
`therefore is both a reasonable example for the purposes in this document and commercially
`acceptable. It is intended that the teachings provided here can serve as the basis for simulations
`of other forms of entertainment including other mechanical gaming devices and machines
`without limitation. Equally, these teachings can serve as the basis for new forms of electronic
`commerce, new forms of gaming and new forms of entertainment.
`
`In a typical mechanical three reel slot machine, the user faces a machine then inserts one or more
`coins. The user pulls a handle and sets the reels in motion. In any one of a number of ways, the
`reels stop and a result is displayed. A monetary payout is made according to the display.
`
`A PC is clearly powerful enough to present images and sounds which are representative of a
`mechanical machine. A PC is also arguably powerful enough to (with the correct software)
`generate random numbers, allow a user to fully simulate the use of a mechanical machine and
`account for the outcome.
`
`Without the Internet however, the PC simulation mentioned above, has limited commercial
`value. One reason is that the user would otherwise have no practical spontaneous way of
`financially interacting with anyone other than himself. The Internet allows the user to interact
`spontaneously with commercial gaming operations, entertainment providers and financial
`institutions.
`
`An Internet implementation of this kind of slot machine simulation requires a fundamentally
`different approach than the one taken for the PC. While the PC could handle the tasks of
`generating an outcome which could potentially be binding on an Internet site operator or financial
`institution, the user’s PC is unsuitable for these tasks for practical, legal and commercial reasons.
`
`The solution to the PC’s unsuitability for these certain tasks is to allocate the tasks to more
`specialized computers operated remotely from the user and operated by a commercial entity. This
`approach is acceptable, in principle to users and commercial entities. However, actual
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`Page 3 of 16
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`commercial acceptance depends on the speed and reliability of data transfer between the user and
`the remote computer. If the rate of data transfer is too slow, the user will not use the system at
`all because not enough entertainment per unit of time is being delivered to sustain the user’s
`interest level.
`
`Some of the challenges solved by this invention are methods for displaying information quickly
`and efficiently to the user and methods for exchanging information between the user and the
`remote computer (game server) which make possible the commercial exploitation of gaming
`simulation and the like. These methods are embodied in software. The software gives the
`computers used to execute it, new capability to be commercially useful in ways not possible
`before the invention.
`
`In this specific example, the initial game display is in the form of a slot machine. In the examples
`provided in this specification, an implementation of the invention will be explained in terms of
`a simulation of a single line multi-reel machine. It will appreciated that the method of display and
`information management for a simulation of a multi-line machine or a machine of any number
`of reels is merely a logical extension of the principles discussed and applied for a single line
`machine simulation. The object of the game, in either event, is for the player to get two or more
`consecutive symbols on a win line. However, a particular pay out may be represented by different
`permutations of display symbols. For example, a display of two oranges in line one or two apples
`in line three may both be two to one (2:1) pay outs.
`
`An Internet implementation of the invention requires a player to operate a personal computer
`(“PC”) which is connected to the Internet, for example by a dial-up modem to a service provider.
`The player’s computer runs a client program, for example a World Wide Web (web) browser
`which is enabled to execute Java applets, small applications which may be sent via the Internet
`network. A Web site operator maintains a Web site on an Internet server which facilitates
`communications between the user’s applet and a game server which is also in communication
`with the site’s Internet server.
`
`In this example, the player first directs the browser to the operator’s site. If required by the user,
`the slot machine simulation applet may be downloaded by requesting it from the operator’s site.
`The applet once downloaded in the form of an executable file is then installed by the player.
`
`The first session may begin with the applet installed and the browser displaying a WWW page
`or pages which identify the site and assists the player to register by establishing a virtual account.
`Registration, in addition to establishing a virtual account with the operator, requires the player
`to identify himself in a way which is both unique and suitable for the sponsors commercial and
`legal needs. The funds for using the system may be initially credited from a player’s credit card
`account, bank account or by some other method such as a pre-paid account. Registration may
`entail verification of the user’s email address. This is done by sending a verification number to
`the user by email, then requesting that number for registration. Successful registration results in
`the player being able to interact with the operator’s game server.
`
`Once a user is successfully registered and the Java applet installed and running, the user’s PC
`displays a slot machine image as shown in Figure 1. The applet initially displays, for example,
`a three reel machine having a pull handle. Because the applet lacks the processing ability to
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`Page 4 of 16
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`generate a final result for the user without recourse to the game server, the initial data supplied
`to the applet is said to be incomplete. When the applet is first opened, it issues a request or a
`series of requests which are ultimately answered (completed) by the game server. A first request
`is answered with a reply from the game server specifying the size of the player’s purse and the
`currency being used. A second request is answered by the game server with information used by
`the game server to configure itself to handle the particular game. This is referred to as a croupier
`configuration file. This file provides information or data to the applet about the specifics of the
`simulation such as the pay-out table or the required appearance of the user’s display, for example
`the ordering of the symbols on the reels. The first two requests may be combined.
`
`By using his personal computer’s mouse to position the operating system’s cursor over the
`handle or a graphically displayed button, a user’s mouse click is interpreted by the applet as a
`command to do two things: (a) begin the graphical and audio presentation which entertains the
`user and (b) issue a third type of request. This third type of request is for a “ticket”.
`
`As suggested above, a “ticket” is a digital electronic message which provides, when decoded,
`data in a pre-determined format which can be interpreted by the applet for the purpose of
`concluding the entertainment, displaying a specific result and displaying the appropriate
`accounting information. By ticket we also mean data containing enough information for the game
`to be played to conclusion by the player, this same data being fully deterministic of the outcome
`so that the game result may be accounted for by the sponsor before the ticket is issued to the
`player.
`
`Note that the first time during a session that a request is made, the user’s applet requests a socket
`connection directly with the operator’s game server. If the request is successful, the remainder
`of the session is handled by direct socket TCP/IP communication between applet and game
`server. If the request is unsuccessful, then the applet makes the request by sending an HTTP URL
`(hypertext transfer protocol uniform resource locator) to the operator’s WWW server. In this
`case the WWW server then forwards the URL to the game server and the game server responds
`in HTTP with data to the WWW server which forwards this in HTTP to the applet.
`
`As mentioned above, the “pull” of the handle or a press of the spin button initiates a graphical
`and audio presentation which includes a first sound to simulate the pulling of the handle of a
`conventional slot machine. The presentation also includes a graphic display which simulates the
`movement of symbols on the reels of a conventional machine. In the beginning and the end of
`a presentation when the reels are static on a conventional machine, the Java applet displays static
`images of an individual symbol (cherry, orange, apple etc.) in those spaces which represent the
`windows to the reels. However, when the Java applet displays simulated reels in rotary motion,
`it displays a rapid sequence of static images which have been intentionally blurred in the
`simulated direction of rotation. The sequential display of static blurred images of different
`symbols gives rise to the visual illusion of rotational motion or spinning of the reel or reels. The
`simulated spinning is accompanied by a second sound which represents the sound of spinning
`reels in a conventional machine.
`
`While or before the reel motion simulation display begins the applet has issued a request for a
`ticket. The ticket request may contain both “general” and “specific” data. General data
`
`Page 5 of 16
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`comprises, for example, user identification information, request identification number, the total
`wager, the game identification and other information. Specific data in the request may include,
`for example, the wager amount, the state of the game (particularly in multi-state games like
`black-jack) the type of wager made by the user, specific information about the user’s display,
`selected options or configuration as will be explained below. The user’s ability to request a ticket
`may be conditional on factors such as successful registration, use of the user’s correct
`identification and password and having sufficient funds on account.
`
`If the user’s request for a ticket is honoured, the game server responds by using one or more
`random numbers to determine the outcome of the request then issuing a ticket containing
`outcome and other information. As mentioned before, the ticket contains the ultimate result and
`enough information for the game to be displayed to conclusion by the player’s applet. The ticket
`may contain general data and specific data. This same ticket data being deterministic of the
`outcome is interpreted by the game server and used to update the game server’s database
`including the user’s account. In short, the outcome of the game is recorded and accounted for by
`the game server before the ticket is received by the user. The pay out, including bonus (if any
`and as explained below) is determined by the game server by using random number(s) in a
`specific algorithm to determine if a win is achieved. If so, a pay table is used to determine the pay
`out.
`
`The general data in the ticket may include information which identifies the game server or virtual
`dealer, the receipt identification number (which identifies the transaction), user identification
`information, the amount won, game state, request ID, error status, a flag for special
`circumstances (such as a major win), the user’s purse value (account total) and other information
`of a general nature. The specific ticket data may include information describing the final display
`parameters including an indication or specification of the stopped reel display symbols, the win
`lines won on a multi-line machine simulation, the win amounts for each winning line,
`information about the award of a bonus and information about the substitution of symbols (see
`below).
`
`The applet interprets the ticket and extracts from it an indication of which positions its virtual
`reels should stop at and therefore which characters should be displayed. If a win is indicated, the
`applet may also cause, for example, the sound associated with the spinning wheels to cease, a
`new win-indicative sound or sequence of sounds to be emitted by the user’s PC, the display to
`cease the spinning reel depiction, the display to depict a static reel display in accordance with the
`method described above, and the display to depict the user’s updated virtual account information
`and other information associated with a win. A winning display is shown in Figure 2.
`
`Of course if the ticket does not indicate a win, the applet will select and cause to be executed,
`sound and display information consistent with a non-winning ticket.
`
`In a preferred embodiment, the Java and game server software is adapted to a bonus feature. In
`one example of a bonus feature, the game server includes, in the specific data of the ticket, an
`indication of whether or not the user’s win will be displayed as a bonus game. If so, the user’s
`account is updated accordingly and the user’s applet responds by altering the user’s display and
`sounds etc. accordingly.
`
`Page 6 of 16
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`In one example of bonus display, one of the user’s allotted display symbols is selected at random
`by the applet at the beginning of play. The identity of that symbol is preferably included in the
`specific data of the request. That identity may be used, in one method, by the game dealer for the
`purpose of determining if a bonus game is to be awarded. In the moving reel display which
`begins with the user pulling the virtual handle the sequence of blurred symbols lacks entirely the
`selected symbol and in its place is displayed a blurred bonus symbol image. For example a
`blurred leprechaun could be displayed in the animation sequence instead of a blurred cherry
`image. If the ticket is indicative of a bonus award, the applet causes the appropriate bonus display
`of static leprechaun images and sound to be generated. A bonus winning display is shown in
`Figure 2. If required by the ticket, the applet reverts to the selected symbol static image for the
`display of the result.
`
`A bonus display would begin, for example as a cessation of the moving reel sequence and a static
`display of the two or three bonus symbols indicative of the bonus win. The applet then may cause
`the display to be altered to depict a bonus animation from which the user is notified of the
`amount, if any associated with the bonus award. In preferred embodiments the bonus animation
`is entirely different to the slot machine display and therefore is entertaining, new and different
`to the user. In one embodiment of a different bonus animation, the display depicts a landscape,
`for example an Irish landscape with a cottage as shown in Figure 3. This image is known to the
`player to be a map. Movement of the cursor of the user’s PC over the map causes, for example,
`the user’s cursor or display to change when the cursor is positioned over an active region of the
`map which is associated with a valid selection. If the user makes a valid selection by clicking on
`a valid region, the display is altered by the applet. The display alteration tells the user the amount
`of the award. For example, the user moves the cursor over a hay stack. The cursor changes (or
`the map display changes) to indicate that the cursor is in a selectable region. The user clicks to
`select a region and the display is altered to reveal a rainbow, a pot of gold or other winning motif
`or animation. Simultaneously, the applet causes a winning sound or sound sequence to be
`generated by the PC and the display of the user’s account information is updated. This is shown
`in Figure 4. After a predetermined interval or on command by the player (from keyboard or
`mouse) the display is returned to the simulation of the slot machine for the beginning of a new
`instance of play.
`
`A win may be redeemed by a request by a user that all or some of his account be transferred to
`a bank account or issued as a check or prize. Funds may be moved from the user’s credit card or
`bank account to the user’s virtual account at any time by the user.
`
`While the invention has been disclosed with reference to particular embodiments, these should
`be understood as examples of the novel aspects of the invention and not as limitations to the
`scope or spirit of the invention.
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`Page 7 of 16
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`What is claimed is:
`
`1. A method of displaying a simulation on a PC, comprising the steps of:
`
`providing a PC user with an applet which has display and Internet communication
`functionality;
`providing the user with initial data for the applet to use in the display of a presentation,
`the bulk of that initial data being provided to the user before the applet is used to display
`the presentation, the data being incomplete;
`operating a game server to communicate with the user’s applet;
`maintaining a virtual account for the user, certain data being sent to the user only if the
`status of the account is satisfactory;
`using the game server to obtain a result in response to a request from the user’s applet,
`the request containing data about the user or the simulation or both;
`using the game server to send a ticket to the applet, the ticket containing data that is
`representative of the result;
`the game server using the result to modify the user’s account;
`the applet using the data in the ticket to complete a presentation to the user comprising
`at least the visual display of a result and a visual update of the users virtual account.
`
`2. The method of displaying information of claim 1, wherein:
`
`the applet is capable of working with a Web browser to display a number of different
`presentations from start to finish, depending on the result indicated by the ticket data,
`including information about the user’s virtual account.
`
`3. The method of displaying information of claim 2, wherein:
`
`a winning presentation may be followed by a bonus presentation of a different nature and
`based in part on the initial data if the ticket data so dictates.
`
`4. The method of displaying information of claim 3, wherein:
`
`an initial display prompted by the Java applet is that of a visual simulation of a slot
`machine with reels;
`the display having reel windows in which may be depicted graphic symbols selected from
`a first set of images;
`an initial display in a presentation comprising one symbol image from the first set
`depicted statically in each window;
`a second display in the presentation comprises an animation simulating a rotary motion
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`Page 8 of 16
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`of the reels and comprising a sequence of symbol images in each window;
`a third display comprises one symbol image depicted statically in each window;
`all the symbol images being generated from the initial data.
`
`5. The method of displaying information of claim 4, wherein:
`
`the second display utilizes symbol images from a second set.
`
`6. The method of displaying information of claim 5, wherein:
`
`the second set comprises symbol images which are akin to the first set, but visually
`blurred in a direction suggestive of reel motion.
`
`7. The method of displaying information of claim 6, wherein:
`
`the Java applet may alter the display during a presentation by substituting a blurred bonus
`symbol image for a selected symbol image from the second set and a static bonus symbol
`image for a selected symbol from the first set.
`
`8. The method of displaying information of claim 7, wherein:
`
`the Java applet causes the request to include the identity of the selected symbol from the
`first set.
`
`9. The method of displaying information of claim 7, comprising the additional steps of:
`
`indicating in the ticket data, that a bonus is awarded and a bonus display is required;
`using the applet to generate a second and different presentation which is consistent with
`a bonus award ; and
`using the applet to display a bonus presentation and bonus outcome.
`
`10. The method of displaying information of claim 9, wherein:
`
`a bonus display is different than the first, second or third displays; and
`the bonus outcome is displayed before the applet returns the display to a display like
`them.
`
`11. The method of displaying information of claim 10, wherein:
`
`the bonus display is a map with active regions; and
`where the selection of an active region causes the applet to alter the bonus presentation
`by altering at least the appearance of the selected region in accordance with the
`magnitude of the outcome.
`
`12. The method of any of claims 1-11 wherein:
`
`the first, second and third displays are visual simulations of a spinning reel slot machine.
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`13. The method of claim 12 wherein:
`the first, second and third displays are visual simulations of a multi-line slot machine.
`
`14. A method for managing electronic information flow between a Java applet and a game server
`comprising the steps of:
`
`using the Java applet to generate a request, the request having general data and specific
`data contained in it;
`sending the request by the Internet to a game server;
`using the game server to generate a ticket, the ticket containing general and specific data
`including an outcome;
`recording at least the outcome on the game server;
`sending the ticket to the applet; and
`using the applet to provide a display consistent with the outcome.
`
`15. The method of claim 14, wherein;
`
`the request general data comprising user identification information, the total transaction
`amount and information about the identity of the game being displayed.
`
`16. The method of claim 15, wherein;
`
`the request general data comprises user identification information, the total transaction
`amount and information about the identity of the game being displayed..
`
`17. The method of claim 16, wherein;
`
`the request specific data comprises, if required, information about the specific nature of
`the user’s wager.
`
`18. The method of claim 17, wherein;
`
`the request specific data comprises, if required, information about the number of lines
`bet on a multi-line machine simulation and the wager per line.
`
`19. The method of claim 18, wherein;
`
`the request specific data comprises, if required, information about bonus symbol
`substitution including the identity of the symbol image for which a bonus symbol image
`is substituted.
`
`20. The method of claim 14, wherein;
`
`the ticket general data comprises information selected from among the following types:
`game server or virtual dealer identification, game number, user identification, the amount
`credited tot the user’s account by the game server, error status, flags for special events,
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`a major win flag, or the user’s purse or account total.
`
`21. The method of claim 16, wherein;
`
`the request specific data comprises, information selected from among the following
`types: the specific nature of the outcome, information from which the applet can compel
`a display which is consistent with the outcome, which lines are winning lines in a multi-
`line machine simulation, the win amount for each winning line, information about a
`bonus award if any and information regarding the display of a bonus display.
`
`Page 11 of 16
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`
`
`• ·• ·
`• ·
`• ·
`
`• ·
`• ·
`• ·
`
`• · ·• ·
`• · ·
`• · · ·• ·
`• · ·
`
`• ·
`• ♦
`• ·
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`• · • ·
`
`2or3Leprechauris
`/ trigger bonus game
`
`FIGURE 1
`
`Page 12 of 16
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`
`
`3
`
`
`
`_
`
`v
`
`» CASH PURSE
`
`‘
`
`.
`
`FIGURE 2
`
`Page 13 of 16
`Page 13 of 16
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`Petitioners EX-1009, Page 15 0f 18
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`
`
`$2080.30.
`
`V. CASH PURSE .
`
`FIGURE 3
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`
`
`Page 14 of 16
`Page 14 of 16
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`Petitioners EX-1009, Page 16 of 18
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`
`
`····
`• · ·
`• · ·
`
`• · ·
`• · ·
`c * «
`
`• · ··
`• ·
`····
`
`f §
`I
`
`BET AMOUNTS
`
`CASH PURSE
`Secure Tag
`
`FIGURE 4
`
`Page 15 of 16
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`
`
`
`
`«···
`• · ·
`·· ·
`
`FIGURE 5
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`• · ·
`• · ·
`• ··
`····
`• · ·
`·· ·
`
`
`
`• · ·
`• · ·
`• ··
`• ••v
`• ·
`····
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`Page 16 of 16
`Page 16 of 16
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`Petitioners EX-1009, Page 18 of 18
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`
`