Electronic game method and apparatus with hierarchy of simulated wheels

• US 5,788,573 A
• Filed: 03/22/1996
• Issued: 08/04/1998
• Est. Priority Date: 03/22/1996
• Status: Expired due to Term

• Current Assignee: International Game Technology
• Original Assignee: International Game Technology
• Inventors: Baerlocher, Anthony J., Crowder, Robert W. Jr.
• Primary Examiner(s): Harrison, Jessica
• Assistant Examiner(s): SAGER, MARK ALAN
• Application Number:
  US08/620,586
• Time in Patent Office: 865 Days
• Field of Search: 463/1, 463/9, 463/12, 463/13, 463/16, 463/20, 463/25, 463/26, 463/27, 463/30, 463/31, 463/36, 463/40-42, 364/410, 364/412, 273/139, 273/143 R, 273/138.2, 273/138.1
• US Class Current: 463/16
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3244 Payment aspects of a gaming system, e.g. payment schemes, setting payout ratio, bonus or consolation prizes
• CPC Class Codes: G07F 17/3258 Cumulative reward schemes, e.g. jackpots

Abstract

A computer implemented electronic game includes a wheel of fortune game with odds of a jackpot greatly in excess of the number of indicia on a simulated wheel. In one embodiment, a virtual mapping allows a bonus indicium of the wheel to be given a 1:M chance of being landed on, even though the bonus position is one of N positions on the simulated wheel. A random number L is chosen between 1 and M and this number is mapped to a number between 1 and N. The display of the wheel if controlled to simulate stopping of the wheel at the Ith indicium where L is mapped to I. In one embodiment, by using successive wheel spins, the odds of moving to the next round are multiplied to achieve an overall odds of winning a jackpot. In one embodiment there is a 1:50 chance of entering a bonus screen from a main slot machine/phrase completion screen, a 1:20 chance of landing on a bonus position in a first wheel spin, a 1:40 chance of landing on a bonus position for a second wheel spin and a 1:200 chance of landing on a bonus position for a last wheel spin to provide an overall odds of a jackpot of 1:8 million.

Claims

1. A game process, implemented using a computer, comprising:

receiving a monetary wager from a player;

controlling a first display device to display an image of at least a portion of a first simulated value range, said image, during at least a first period of said display, containing a first plurality of indicia including at least one indicium designated as a next level indicium, at least some of said plurality of indicia, upon being displayed, indicating loss of at least part of said monetary wager; and

upon the next level indicium being selected on the first simulated value range during the first period, controlling a display to show at least a portion of a wheel of fortune rotatable about a first axis, said wheel having a plurality of prize indicators on a face thereof and situated adjacent at least a first pointer for indicating exactly one of said prize indicators after rotation about said first axis has stopped, all of said prize indicators indicating the size of the prize won by said player as a result of said next level indicium wherein no loss of a part of said monetary wager results from any of said prize indicators, said plurality of prize indicators including at least one top award indicium.

2. A method as claimed in claim 1 wherein said first simulated value range does not contain a top award indicium.

3. A method as claimed in claim 1 wherein the overall odds that said indicator points to said top award indicium is at least 1:

1,000,000.

4. A method as claimed in claim 1 wherein said first simulated value range contains J indicia where J is an integer, further comprising:

storing, in said computer, information defining a mapping between integers 1 through J, corresponding, respectively to said J indicia, and integers 1 through M where M is an integer greater than or equal to J;

randomly selecting a first integer between 1 and M designated as x; and

controlling said display device to simulate selection of an indicia in said first simulated value range wherein x is mapped to at least one position that corresponds to a display position y between the range 1 and J; and

displaying an indicium located at said display position y on the first display device.

5. The method of claim 1 wherein the top award represented by the top award indicium progresses as a function of coin in deposited.

6. The method of claim 5 wherein the top award represented by the top award indicium progresses as a function of coin in deposited from a plurality of devices on which the method is being conducted.

7. A process as claimed in claim 1 wherein said wheel of fortune comprises a physical wheel.

8. A process as claimed in claim 1 wherein said wheel of fortune comprises a display on a video display screen.

9. A process as claimed in claim 1 wherein said wheel of fortune is controlled so at to stop at a position which is random, independent of the skill of the player.

10. A process as claimed in claim 1 wherein said wheel of fortune is computer controlled so as to stop at a position randomly selected by said computer.

11. A process as claimed in claim 1 wherein, when N represents the number of stop positions of said wheel of fortune, said wheel of fortune is computer controlled so that the odds of stopping at a particular stop position are different from 1/N.

12. A process as claimed in claim 1 wherein said game process includes the award of at least one progressive prize.

13. A process as claimed in claim 12, wherein said progressive prize is awarded in response to a predefined stop position of said wheel of fortune.

14. Apparatus under computer control, comprising:

a first gaming apparatus which includes

a first display device for displaying a game of chance;

a first value wheel activated for a first time period upon a random event occurring in the game of chance, the first value wheel including at least one next level indicium; and

a second value wheel activated for a second time period upon the next level indicium being selected upon completion of the first time period, the second value wheel including at least one top award indicium.

15. The apparatus of claim 14 further comprising:

at least one second gaming apparatus; and

a system for linking the at least one second gaming apparatus with said first gaming apparatus such that a top award jackpot prize represented by the top award indicium progresses as a function of coin in deposited into said first gaming apparatus and the at least one second gaming apparatus linked together in the system.

16. A gaming apparatus under computer control, comprising:

means for receiving a monetary wager from a player;

a first display device for displaying a game of chance which includes the potential for losing at least a portion of said monetary wager;

a wheel of fortune activated for a first time period upon a random event occurring in the game of chance, the wheel of fortune rotatable about a first axis, wherein said wheel of fortune is controlled so as to stop at a random stop position, independent of the skill of the player, said wheel of fortune having a plurality of prize indicators on a face thereof and situated adjacent at least a first pointer for indicating exactly one of said prize indicators after rotation about said first axis has stopped, all of said prize indicators indicating the size of the prize won by said player as a result of said random even wherein no loss of a part of said monetary wager results from any of said prize indicators.