Slot machine game and system with improved jackpot feature

• US 7,582,014 B2
• Filed: 01/12/2007
• Issued: 09/01/2009
• Est. Priority Date: 07/08/1997
• Status: Expired due to Fees

• Current Assignee: Aristocrat Technologies Australia PTY Limited (Aristocrat Leisure Limited)
• Original Assignee: Aristocrat Leisure Industries Pty Ltd (Aristocrat Leisure Limited)
• Inventors: Olive, Scott
• Primary Examiner(s): Hotaling, II; John M.
• Assistant Examiner(s): D'AGOSTINO, PAUL ANTHONY
• Application Number:
  US11/622,914
• Publication Number:
  US 20070111785A1
• Time in Patent Office: 963 Days
• Field of Search: None
• US Class Current: 463/25
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3213 Details of moving display elements, e.g. spinning reels, tumbling members
• CPC Class Codes: G07F 17/3225 Data transfer within a gaming system, e.g. data sent between gaming machines and users
• 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
• CPC Class Codes: G07F 17/34 depending on the stopping of moving members in a mechanical slot machine, e.g. "fruit" machines

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.

Claims

1. A method of randomly awarding a second game in conjunction with the play of a first main game at a gaming machine, the gaming machine accepting different wager amounts and, a single wager amount being accepted for each play of a first main game of the gaming machine, the method comprising:

accepting a single wager amount at the gaming machine;

displaying a first main game at the gaming machine;

generating a trigger condition in conjunction with said first main game, said trigger condition occurring upon an event having a probability of occurrence dependent on the amount of the single wager made at the gaming machine;

testing for said trigger condition;

displaying a second game at the gaming machine in response to testing a said trigger condition; and

identifying a prize that has been won based solely on the outcome of said second game.

2. The method of claim 1, wherein said step of generating a trigger condition includes:

(1) selecting a random number from a predetermined range of numbers;

(2) allotting a plurality of numbers from the predetermined range of numbers, the quantity of which being in proportion to the amount of the wager made at said gaming machine; and

(3) indicating the occurrence of the trigger condition if one of the allotted numbers matches the selected random number.

3. The method of claim 2, wherein the amount of the single wager is an amount in credits.

4. The method of claim 2, wherein said step of accepting a wager includes accepting a plurality of credits, and wherein said step of allotting includes allotting one number for each credit bet.

5. The method of claim 2, wherein said step of allotting includes allotting one number for each unit of currency of the amount of the single wager.

6. The method of claim 2, wherein said step of selecting a random number includes generating a random number from a random number generator.

7. The method of claim 1, wherein said second game is displayed at the completion of said first main game.

8. The method of claim 1, wherein said step of identifying occurs at the completion of said second game.

9. The method of claim 1, wherein said step of displaying a second game includes displaying spinning reel strips;

and further includes stopping the spinning of said spinning reel strips.

10. The method of claim 1, wherein said step of displaying a second game includes awarding more than one game.

11. The method of claim 1, wherein the currency denomination of each gaming machine is one cent.

12. The method of claim 1, wherein said second game has a higher probability of success than said first main game.

13. The method of claim 1, and further including alerting the player when said trigger condition has occurred, said step of alerting occurring prior to said step of displaying said second game.

14. The method of claim 1, where said prize includes one of a plurality of prizes.

15. The method of claim 14, wherein said plurality of prizes are of unequal value.

16. The method of claim 14, wherein each of said plurality of prizes is a fraction of an incrementing pool.

17. The method of claim 14, wherein at least one of said plurality of prizes comprises a progressive prize.

18. The method of claim 14, wherein an outcome of said second game determines said one of the plurality of prizes.

19. An electronic gaming console having a computer-readable storage medium including a set of instructions for execution on the electronic gaming console, the electronic gaming console comprising:

a wager routine for accepting a wager at the electronic gaming console;

a main game initiation routine for initiating a first main game at the electronic gaming console;

a trigger routine for determining a trigger condition in conjunction with said first main game being initiated, said trigger condition occurring upon an event having a probability of occurrence dependent on the amount of the wager accepted at the electronic gaming console, wherein said trigger routine triggers a second game to appear at the electronic gaming console solely in response to the determination of said trigger condition;

a display routine for displaying (1) said first main game and (2) said second game at the electronic gaming console in response to said trigger condition; and

an award routine for identifying a prize won based solely on the outcome of said second game.

20. The electronic gaming console of claim 19, wherein said prize comprises one of a plurality of prizes, wherein at least one of said plurality of prizes includes a progressive prize.

21. The electronic gaming console of claim 19 wherein said trigger routine randomly causes said event in accordance with an average turnover of wagers accepted at the electronic gaming console.