Interactive slot machine method and apparatus

Information

  • Patent Application
  • 20080076524
  • Publication Number
    20080076524
  • Date Filed
    September 21, 2007
    16 years ago
  • Date Published
    March 27, 2008
    16 years ago
Abstract
A gaming device that does not employ pay lines is provided, and has a playfield that is subdivided into a plurality of groups. The configuration of the groups could be done manually by the player, or at random, and changes for each game. At least one key group is used to define key symbols that must be repeated at other groups for a winning combination of symbols to occur.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other more detailed and specific objectives will be disclosed in the course of the following description taken in conjunction with the accompanying drawings wherein:



FIG. 1 is a perspective view of the preferred embodiment of a slot machine according to the invention.



FIG. 2 indicates a block diagram of the microprocessor circuitry used to control the slot machine according to the invention.



FIGS. 3-4 indicate a logical flow diagram that illustrates the main program functions performed by the microprocessor controlling the slot machine according to the invention.



FIG. 5 indicates the 15 playing positions of the preferred embodiment.



FIG. 6 shows an example of a key group that includes 3 playing positions in the preferred embodiment.



FIG. 7 shows an example of a group configuration for the playing positions, indicating the key group, and the remaining four groups in different colors.



FIG. 8 shows the example of FIG. 7 with the active playing positions indicated by a ring around each position.



FIG. 9 shows the example of FIG. 7 after the random assignment of generated symbols to playing positions.



FIG. 10 shows an example of a winning combination of symbols of a slot machine according to the invention.



FIG. 11 shows a perspective view of an alternate embodiment that employs the present invention as a bonus game in a conventional reel type video slot machine.





DESCRIPTION OF THE PREFERRED. EMBODIMENT

Referring now to the drawings where the illustrations are for the purpose of describing the preferred embodiment of the invention and are not intended to limit the invention hereto, FIG. 1 is a front prospective view of a slot machine 10, which is comprised of a housing 13 having a face 14 and a video screen 11 that indicates a playfield with fifteen (15) playing positions 17. The playing positions are configured as five (5) rows of playing positions such that the top row includes one playing position, the second row includes four (4) playing positions, the third row includes five (5) playing positions, the fourth row includes four (4) playing positions, and the bottom row include a single playing position. This configuration is also shown in FIG. 5. Prior to each spin, the player is required to select three (3) playing positions to define the “key” group 50 for the spin. An example of a key group is shown in FIG. 6, where the playing positions of the key group are indicated by a solid ring around each playing position. The remaining playing positions are then randomly configured into four (4) additional groups as shown in FIG. 7. The additional four groups 51, 53, 55 & 57 are distinguished from each other using different colors.


It should be noted that the number of playing positions in the playfield, and the above described configuration of the playfield are set forth for the purpose of describing the preferred embodiment, and are not intended to limit the invention herein. As would be appreciated by a person skilled in the art, any configuration of the playing positions could be used. Because the current invention does not employ pay lines, a winning combination of symbols does not have to be contiguous.


The slot machine 10 has conventional controls including an activation lever 12, a start button 24, “BET ONE” 27, “BET MAX” 29 and “CREDIT PER GROUP” 20 buttons. Further, the preferred embodiment includes a Liquid Crystal Display (LCD) screen 16, which provides game information to the player that includes the number of groups selected, coins per group, number of coins won, and balance of remaining coins or credit. In addition, the preferred embodiment employs a touch screen control mechanism 44 to enable a player to select the playing positions of the “key” group.


A block diagram of the control circuitry to operate this gaming device 10 is illustrated in FIG. 2. This block diagram includes a micro-controller with a central processing unit (CPU) 30 and system memory. The system memory preferably comprises a separate read-only memory (ROM) 34 and battery-backed random-access memory (RAM) 36. It will be appreciated, however, that the system memory may be implemented on any of several alternative types of memory structures or may be implemented on a single memory structure. For example, the read-only memory 34 may be replaced or supplemented with a mass storage unit such as a removable flash memory or a hard drive. The system memory is used to store game-related data associated with the chance games played on the slot machine. The game-related data may, for example, include game code, math tables, a random number generator, and audio resources.


An on/off toggle switch 8 is provided to control the operational state of the slot machine and the connection of the external AC power supply 82 to the electric circuitry. Also, an interface and coding device 52 is used as an input interface between the various control elements and the CPU 30. These control elements include the touch control mechanism 44 of the video screen 11, main lever switch 12, “BET ONE” switch 27, “BET MAX” switch 29, “START” button 24, “CREDIT PER GROUP” switch 20 and other conventional control elements of a slot machine. Similarly an LCD control driver 56, and an audio driver 58 are used to interface the LCD screen 16, which provides game information, and the audio circuits that activate the loudspeaker 76, with the CPU 30. Also, a driver 60 is used to interface the video screen 11 with the CPU 30. A common address and control bus 92, and a separate common data bus 90 are used to interconnect the central processing unit 30 with the interface and coding device 52, the video driver 60, the LCD driver 56, the audio driver 58, the read only memory (ROM) 34, and the random access memory (RAM) 36.


Similar to conventional slot machines, the player is required to deposit a wager prior to the start of a game or a spin. The player can proceed to deposit a wager for a game using traditional control switches that include “BET ONE” 27, “BET MAX” 29, and “CREDIT PER GROUP” 20 buttons.


After depositing a wager, the player is instructed to select the three playing positions for the key group 50 using the touch screen controls 44. Then upon such manual selection of the playing positions for the key group 50, the CPU 30 executes a segment of the game code, which controls the operation of the slot machine, to randomly select and identify the playing positions for the remaining four (4) groups. A segment of the game code also identifies to the player the active playing positions for the game based on the amount of wager deposited by the player. A minimum wager activates seven (7) of the fifteen (15) playing positions. The seven activated positions include the three positions of the key group, and four positions selected at random from the remaining four groups (one per group). Each additional wager expands the playfield by two positions that are selected at random from the remaining playing positions. FIG. 8 shows a group configuration with nine (9) playing positions activated. The activated playing positions are indicated using a double ring around each playing position.


The preferred embodiment employs five (5) simulated rotating reels to generate random symbols for each game. The rotating reels are used in conjunction with three lines, each of which crosses the five rotating reels. However, these lines are not pay lines. They are rather used to generate symbols for each spin. It should be noted that, in the preferred embodiment, the rotating reels and associated lines are not visible to the player.


After the configuration of the playfield into groups, and after indicating to the player the active playing positions, the player is required to initiate a game or a spin by activating the main lever 12, or the “START” button 24. Upon such activation the microprocessor executes a segment of the control logic that initiates the starting and stopping of the simulated reels, and the random generation of 15 symbols (3 symbols per reel, one at each line). Then the microprocessor executes a segment of the game code control logic that randomly assigns the generated symbols to the fifteen positions 17. FIG. 9 shows an example of a random assignment of generated symbols to the fifteen (15) playing positions of the preferred embodiment. Thereafter, the CPU 30 executes a segment of the game code control logic that determines if one or more winning combinations of symbols occurred at the active playfield. A winning combination of symbols is based on the multiple occurrence of a “key” symbol at a plurality of playing positions. A “key” symbol for a game is defined as a symbol that occurs at a playing position in the “key” group. FIG. 10 shows an example of a winning combination wherein the Lucky “7” is a “key” symbol that occurred in three (3) groups 81, 83 & 85 in addition to the “key” group 50 resulting in a four of a kind. However, because one of the playing positions where the Lucky “7” is assigned 85 has not been activated, the winning combination is a three of a kind.


Further, the CPU 30 selectively accesses the audio resources to be played through one or more audio speakers 76 mounted to a housing of the slot machine. If the outcome after the random assignment of the generated symbols corresponds to a winning combination outcome identified on a pay table, then the CPU 30 instructs a payoff mechanism 55 to award the player a payoff for that winning outcome combination in the form of coins or credits.


Referring again to FIG. 2, in order to operate the gaming device, the ON-OFF switch 8 should be activated from the “off” position to the “on” position, which causes power to be supplied from the main external power supply 82 to the power control circuits 86, which in turn energizes all terminals of the gaming device 10. The gaming device also includes a rechargeable battery 88, which feeds the memory power terminals in order to ensure that critical data is not lost in the event of a loss of the external electrical supply 82.


It should be noted that the above description of the block diagram illustrated in FIG. 2, and using interface and coding devices, and memory decoding devices, is being provided for the purpose of describing the preferred embodiment, and is not intended to limit the invention herein. As would be appreciated by a person skilled in the art, a game designer may elect a microprocessor that includes input and output ports to interface input switches, and output devices with the CPU. Such microprocessors are well known in the art.


With respect to the operation of this gaming machine, the logic steps utilized are illustrated in flow diagram form in FIGS. 3-4, which interconnect with each other at the places shown in the various figures. Even though specific reference will not be made to this diagram in the following description of the operation of the slot machine, periodic reference to this diagram may prove to be helpful to the reader hereof.


Upon the activation of the “On-Off” switch 8, and the initialization of the program variables, the slot machine is ready to operate. The player is expected to deposit a wager, and select three positions for the “key” group using touch screen controls 44.


Once the player has deposited a wager, and selected the playing positions for the “key” group, the control logic program randomly configures the remaining playfield into four groups with three playing positions per group. The groups are indicated on the video screen, and are visually distinguishable from each other using different colors. The “key” group is identified by the color red. The remaining four groups are identified using the colors blue, green, yellow, and white. The identity of each playing position, i.e. which group it belongs to, is indicated by a colored ring around the perimeter of the position. Further, active playing positions are distinguished using a bright color that simulates the illumination of the positions.


Upon the activation of the “START” button 24, or the main lever 12, the microprocessor generates 15 symbols, and randomly assigns them to the playing positions of the playfield. Then the microprocessor determines if a win condition has occurred, and process such win condition by crediting the player an appropriate credit that corresponds to the resulting winning combination(s) of symbols.


Upon the completion of the control program segment that checks and processes winning combinations, the control program logic returns to the program segment that determines if the player has deposited a wager, and the above described process is repeated.


The present invention could also be implemented as a bonus game on a conventional reel type slot machine. Referring to the drawings where the illustrations are for the purpose of describing an alternate embodiment of the invention, and are not intended to limit the invention hereto, FIG. 11 is a front prospective view of a conventional reel type slot machine 110, which is comprised of a housing 113 having a face 114 and a first video screen 104 that indicates five simulated rotating reels with three (3) pay lines 108. The slot machine 110 has conventional controls including an activation lever 112, a start button 124, “BET ONE” 127, “BET MAX” 129 and “CREDIT PER LINE” 120 buttons. Further, the alternate embodiment includes a Liquid Crystal Display (LCD) screen 116, which provides game information to the player that includes the number of lines selected, coins per line, number of coins won, and balance of remaining coins or credit. The machine operates as a conventional slot machine until a bonus game is triggered when an associated symbol occurs at three contiguous playing positions on a selected pay line 108. The bonus game includes a plurality of free spins, which are initiated upon the activation of the bonus button 100.


The alternate embodiment includes a second video screen 111, with fifteen (15) playing positions 117. Prior to each free spin, the player is requested to select three playing positions to define the “key” group on the upper screen 111, using a touch screen control mechanism 144. The microprocessor that controls the slot machine then randomly configures the remaining playing positions of the upper screen 111 into four (4) groups. The microprocessor also activates a plurality of playing positions on the upper screen 111 based on the number of pay lines activated by the player in the underlying conventional game. If the player had activated one pay line in the underlying game, then the microprocessor will activate seven (7) playing positions in the upper screen 111 for the bonus game. The seven playing positions include the three positions selected by the player for the “key” group, and four (4) other playing positions selected at random from the remaining four (4) groups. This random selection is such that one playing position is selected at each non-key group.


Similarly, if the player had activated two (2) lines in the underlying game, then the microprocessor will activate eleven (11) playing positions at the upper screen 111 for the bonus game. These eleven (11) playing positions include the three playing positions selected by the player for the “key” group. Further, if the player had selected all three pay lines of the underlying game, then the microprocessor will activate all fifteen (15) playing positions of the upper screen 104 for the bonus game.


Upon the completion of a free spin, the occurring symbols at the three pay lines 108 of the lower screen 104 are randomly mapped to the playing positions 117 of the upper screen 111. A winning determination is then made based on the “key” symbols of the “key” group. The number of credits or coins per line deposited by the player for the underlying game is used to calculate the amount of a win in the bonus game. This process is repeated for each free spin in the bonus game.


As will be understood by those skilled in the art, many different programs may be utilized to implement the flow charts disclosed in FIGS. 3 & 4. Obviously these programs will vary from one another in some degree. However, it is well within the skill of the computer programmer to provide particular programs for implementing each of the steps of the flow charts disclosed herein. It is also to be understood that the foregoing detailed description has been given for clearness of understanding only and is intended to be exemplary of the invention while not limiting the invention to the exact embodiment shown. Obviously certain modifications, variations and improvements will occur to those skilled in the art upon reading the foregoing. It is, therefore, to be understood that all such modifications, variations and improvements have been deleted herein for the sake of conciseness and readability, but are properly within the scope and spirit of the following claims.

Claims
  • 1. A gaming device that comprises: means for providing a playfield that includes a plurality of playing positions,means for configuring the playing positions into a plurality of groups,means for generating symbols, and assigning them to playing positions, andmeans for determining if a winning combination of symbols has occurred.
  • 2. A gaming device as recited in claim 1, further comprising a housing.
  • 3. A gaming device as recited in claim 1 wherein the playfield is indicated on a screen.
  • 4. A gaming device as recited in claim 1 wherein the configuration of the playfield into groups is done at least partially at random.
  • 5. A gaming device as recited in claim 1 wherein the configuration of the playfield into groups is done manually by the player.
  • 6. A gaming device as recited in claim 1, wherein the means for generating symbols includes a plurality of simulated rotating reels that are randomly stopped at a plurality of lines.
  • 7. A gaming device as recited in claim 1, wherein the means for generating symbols includes a simulated reel for each playing position.
  • 8. A gaming device as recited in claim 1, wherein the assignment of generated symbols to the playing positions is random.
  • 9. A gaming device as recited in claim 1, wherein said plurality of groups includes at least one key group, which defines key symbols that must be repeated in other groups for a winning combination to occur.
  • 10. A gaming device that comprises: a playfield that includes a plurality of playing positions,a microprocessor with a computer-readable medium encoded with a computer program to control the operation of the gaming device,a plurality of input control switches to enable a player to interact with the gaming device,a game computer program segment that configures playing positions into a plurality of groups,a computer program segment that generates symbols, and assign them to playing positions, anda computer program segment that determines if a winning combination of symbols has occurred.
  • 11. A gaming device as recited in claim 10, further comprising a housing.
  • 12. A gaming device as recited in claim 10, wherein said computer program segment that configures the playfield into a plurality of groups is based on an algorithm that employs a random number generator.
  • 13. A gaming device as recited in claim 10, wherein said computer program segment that generates and assigns symbols to playing positions employs a plurality of simulated rotating reels that are randomly stopped at a plurality of lines.
  • 14. A gaming device as recited in claim 10, wherein said plurality of groups include at least one key group that defines at least one symbol that must be repeated in other groups for a winning combination to occur.
  • 15. A gaming device that comprises: a playfield that includes a plurality of playing positions,a microprocessor with a computer-readable medium encoded with a game code to control the operation of the gaming device,a plurality of input control switches to enable a player to interact with the gaming device,a game code segment that configures playing positions into a plurality of groups, which include at least one key group,a game code segment that generates symbols using a plurality of reels that are randomly stopped at a plurality of lines,a game code segment that assigns the generated symbols to the playing positions, anda game code segment that determines if a winning combination of symbols has occurred.
  • 16. A gaming device as recited in claim 15 further comprising a housing.
  • 17. A gaming device as recited in claim 15, wherein the configuration of the playfield into a plurality of groups is partially done by the player using input control switches.
  • 18. A gaming device that comprises: a playfield that includes a plurality of playing positions,a microprocessor with a computer-readable medium encoded with a game code to control the operation of the gaming device,an input control mechanism to enable a player to select a key group of playing positions,a game code segment that configures the remaining playing positions into a plurality of groups,a game code segment that generates symbols and assigns them to playing positions, anda game code segment that determines if a winning combination of symbols has occurred.
  • 19. A gaming device as recited in claim 18 further comprising a housing.
  • 20. A gaming device as recited in claim 18, wherein the input control mechanisms includes a plurality of touch screen control switches.
  • 21. A gaming device as recited in claim 18, wherein the input control mechanism includes a mouse control device.
  • 22. A bonus game for a reel type slot machine comprising: a screen that provides a plurality of playing positions,means for configuring the playing positions into a plurality of groups,means for assigning symbols occurring at the pay lines of the underlying reel type slot machine to playing positions, andmeans for determining if a winning combination of symbols has occurred.
  • 23. A bonus game for a reel type slot machine, which is controlled by a microprocessor with a computer-readable medium encoded with a game code, comprising: a screen that provides a plurality of playing positions,a game code segment that configures the playing positions into a plurality of groups,a game code segment that assigns symbols occurring at the pay lines of the underlying reel type slot machine to the playing positions, anda game code segment that determines if a winning combination of symbols has occurred.
  • 24. A bonus game for a slot machine, which is controlled by a microprocessor with a computer-readable medium encoded with a game code, comprising: a screen that provides a plurality of playing positions,a game code segment that configures the playing positions into a plurality of groups,a game code segment that assigns symbols generated at the underlying slot machine to the playing positions, anda game code segment that determines if a winning combination of symbols has occurred.
  • 25. A method for a gaming device that includes a plurality of playing positions, comprising the steps of: configuring the playing positions into a plurality of groups,selecting at least one group as a key group,generating and assigning a plurality of symbols to the playing positions, anddetermining if a winning combination of symbols has occurred based on symbols occurring at a key group.
Parent Case Info

This utility application benefits from provisional application of U.S. Ser. No. 60/847,132 filed on Sep. 26, 2006.

Provisional Applications (1)
Number Date Country
60847132 Sep 2006 US