Gaming system with linked gaming machines that are configurable to have a same probability of winning a designated award

• US 8,512,130 B2
• Filed: 07/27/2006
• Issued: 08/20/2013
• Est. Priority Date: 07/27/2006
• Status: Active Grant

• Current Assignee: IGT (International Game Technology)
• Original Assignee: IGT (International Game Technology)
• Inventors: Muir, David H.
• Primary Examiner(s): Bumgarner, Melba
• Assistant Examiner(s): LIM, SENG HENG
• Application Number:
  US11/460,490
• Publication Number:
  US 20080026824A1
• Time in Patent Office: 2,581 Days
• Field of Search: 463/25
• US Class Current: 463/25
• 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

Abstract

A gaming system that is controlled by a central controller and includes a plurality of gaming machines. Each of the gaming machines includes a game operable upon a wager by a player, a plurality of winning symbol combinations including a designated winning symbol combination and a probability of achieving the designated winning symbol combination. At least two of the gaming machines have different probabilities of achieving the designated winning symbol combination. The gaming system includes a designated award and a triggering event. After an occurrence of the triggering event, the central controller is programmed to change the probability of achieving the designated winning symbol combination for at least one of the gaming machines such that each gaming machine has an equal probability of generating the designated winning symbol combination.

Claims

1. A gaming system comprising:

a central controller programmed to;

(i) determine information associated with a first existing gaming machine;

(ii) determine information associated with a second existing gaming machine, wherein the second existing gaming machine and the first existing gaming machine have different or substantially different probabilities of generating a designated award;

iii) after determining said information associated with the first existing gaming machine and the second existing gaming machine, when, for a wager amount placed at the existing gaming machine, the first existing gaming machine includes;

(a) a first winning symbol combination having a thirst probability of being generated, and

(b) a different second winning symbol combination having a second probability of being generated; and

when, for the wager amount placed at the second existing gaming machine, the second existing gaming machine includes;

(a) a third winning symbol combination having a third probability of being generated, and

(b) a different fourth winning symbol combination having a fourth probability of being generated, said fourth winning symbol combination being different than said first winning symbol combination and the second winning symbol combination;

cause a change of at least one of;

(a) one of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine, such that the other of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine remains unchanged; and

(b) one of the third probability of the second existing gaming machine or the fourth probability of the second gaming machine, such that the other of the third probability of the second gaming machine or the fourth probability of the second gaming machine remains unchanged,

such that one of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine is equal or substantially equal to one of the third probability of the second existing gaming machine or the fourth probability of the second gaming machine and the first existing gaming machine and the second existing gaming machine have an equal or substantially equal probability of generating the designated award.

2. The gaming system of claim 1, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the second probability of the first existing gaming machine.

3. The gaming system of claim 1, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the first probability of the first existing gaming machine.

4. The gaming system of claim 1, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the fourth probability of the second existing gaming machine.

5. The gaming system of claim 1, wherein the central controller is programmed to cause the fourth probability of the second existing gaming machine to change to the third probability of the second existing gaming machine.

6. The gaming system of claim 1, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the third probability of the second existing gaming machine.

7. The gaming system of claim 1, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the fourth probability of the second existing gaming machine.

8. The gaming system of claim 1, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the third probability of the second existing gaming machine.

9. The gaming system of claim 1, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the fourth probability of the second existing gaming machine.

10. The gaming system of claim 1, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the first probability of the first existing gaming machine.

11. The gaming system of claim 1, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the second probability of the first existing gaming machine.

12. The gaming system of claim 1, wherein the central controller is programmed to cause the fourth probability of the second existing gaming machine to change to the first probability of the first existing gaming machine.

13. The gaming system of claim 1, wherein the central controller is programmed to cause the fourth probability of the second existing gaming machine to change to the second probability of the first existing gaming machine.

14. A gaming system comprising:

a central controller programmed to;

(i) determine information associated with a first existing gaming machine;

(ii) determine information associated with a second existing gaming machine, wherein the second existing gaming machine and the first existing gaming machine have different or substantially different probabilities of generating a designated award;

(iii) after determining said information associated with the first existing gaming machine and the second existing gaming machine, when, for a wager amount placed at the first existing gaming machine, the first existing gaming machine includes;

(a) a first winning symbol combination having a first probability of being generated, and

(b) a second winning symbol combination having a second probability of being generated; and

when, for the wager amount placed at the second existing gaming machine, the second gaming machine includes;

(a) a third winning symbol combination having a third probability of being generated, and

(b) a fourth winning symbol combination having a fourth probability of being generated,

link said first existing gaming machine and said second gaming machine to the designated award by causing a change of at least one of;

(a) the first probability or the second probability of the first existing gaming machine, and

(b) the third probability or the fourth probability of the second gaming machine,

such that the first existing gaming machine and the second existing gaming machine have an equal or substantially equal probability of generating the designated award.

15. The gaming system of claim 14, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the second probability of the first existing gaming machine.

16. The gaming system of claim 14, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the first probability of the first existing gaming machine.

17. The gaming system of claim 14, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the fourth probability of the second existing gaming machine.

18. The gaming system of claim 14, wherein the central controller is programmed to cause the fourth probability of the second existing gaming machine to change to the third probability of the second existing gaming machine.

19. The gaming system of claim 14, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the third probability of the second existing gaming machine.

20. The gaming system of claim 14, wherein the central controller is programmed to cause the first probability of the first existing gaming machine to change to the fourth probability of the second existing gaming machine.

21. The gaming system of claim 14, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the third probability of the second existing gaming machine.

22. The gaming system of claim 14, wherein the central controller is programmed to cause the second probability of the first existing gaming machine to change to the fourth probability of the second existing gaming machine.

23. The gaming system of claim 14, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the first probability of the first existing gaming machine.

24. The gaming system of claim 14, wherein the central controller is programmed to cause the third probability of the second existing gaming machine to change to the second probability of the first existing gaming machine.

25. The gaming system of claim 14, wherein the central controller is programmed to cause the fourth probability of the second existing gaming machine to change to the first probability of the first existing gaming machine.

26. The gaming system of claim 14, wherein the central controller is programmed to cause the fourth probability of the second existing naming machine to change to the second probability of the first existing gaming machine.

27. A method of operating a gaming system, said method comprising:

(i) causing a central controller to;

(a) determine information associated with a first existing gaming machine, and

(b) determine information from associated with a second existing gaming machine, wherein the second existing gaming machine and the first existing gaming machine have different or substantially different probabilities of generating a designated award; and

(ii) after determining said information associated with the first existing gaming machine and the second existing gaming machine, when, for a wager amount placed at the first existing gaming machine, the first existing gaming machine includes;

(a) a first winning symbol combination having a first probability of being generated, and

(b) a different second winning symbol combination having a second probability of being generated, and

when, for the wager amount placed at the second existing gaming machine, the second existing gaming machine includes;

(a) a third winning symbol combination having a third probability of being generated, and

(b) a different fourth winning symbol combination having a fourth probability of being generated, said fourth winning symbol combination being different than said first winning symbol combination of the first existing gaming machine and the second winning symbol combination of the first existing gaming machine;

causing the central controller to change of at least one of;

(a) one of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine, such that the other of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine remains unchanged; and

(b) one of the third probability of the second existing gaming machine or the fourth probability of the second existing gaming machine,

such that the other of the third probability of the second existing gaming machine or the fourth probability of the second gaming machine remains unchanged, and such that one of the first probability of the first existing gaming machine or the second probability of the first existing gaming machine is equal or substantially equal to one of the third probability of the second gaming machine or the fourth probability of the second gaming machine and first existing substantially equal probability of generating the designated award.

28. The method of claim 27, which includes changing the first probability of the first existing gaming machine to the second probability of the first existing gaming machine.

29. The method of claim 27, which includes changing the second probability of the first existing gaming machine to the first probability of the first existing gaming machine.

30. The method of claim 27, which includes changing the third probability of the second existing gaming machine to the fourth probability of the second existing gaming machine.

31. The method of claim 27, which includes changing the fourth probability of the second existing gaming machine to the third probability of the second existing gaming machine.

32. The method of claim 27, which includes changing the first probability of the first existing gaming machine to the third probability of the second existing gaming machine.

33. The method of claim 27, which includes changing the first probability of the first existing gaming machine to the fourth probability of the second existing gaming machine.

34. The method of claim 27, which includes changing the second probability of the first existing gaming machine to the third probability of the second existing gaming machine.

35. The method of claim 27, which includes changing the second probability of the first existing gaming machine to the fourth probability of the second existing gaming machine.

36. The method of claim 27, which includes changing the third probability of the second existing gaming machine to the first probability of the first existing gaming machine.

37. The method of claim 27, which includes changing the third probability of the second existing gaming machine to the second probability of the first existing gaming machine.

38. The method of claim 27, which includes changing the fourth probability of the second existing gaming machine to the first probability of the first existing gaming machine.

39. The method of claim 27, which includes changing the fourth probability of the second existing gaming machine to the second probability of the first existing gaming machine.

40. The method of claim 27, which is provided through a data network.

41. The method of claim 40, wherein the data network is the internet.

42. A method of operating a gaming system, said method comprising:

(i) causing a central controller to;

(a) determine information associated with a first existing gaming machine;

(b) determine information associated with a second existing gaming machine, wherein the second existing gaming machine and the first existing gamin machine have different or substantially different probabilities of generating a designated award;

(ii) after determining said information associated with the first existing gaming machine and the second existing gaming machine, when, for a wager amount placed at the first existing gaming machine, the first existing gaming machine includes;

(a) a first winning symbol combination having a first probability of being generated, and

(b) a second winning symbol combination having a second probability of being generated, and

when, for the wager amount placed at the second existing gaming machine, the second existing gaming machine includes;

(a) a third winning symbol combination having a third probability of being generated, and

(b) a fourth winning symbol combination having a fourth probability of being generated, and

causing the central controller to link said first existing gaming machine and said second gaming machine to the designated award by causing at least one of the first probability or the second probability for the first existing gaming machine or the third probability or the fourth probability of the second existing gaming machine to change,

such that the first gaming machine and the second gaming machine have an equal or substantially equal probability of achieving the designated award.

43. The method of claim 42, which includes changing the first probability of the first existing gaming machine to the second probability of the first existing gaming machine.

44. The method of claim 42, which includes changing the second probability of the first existing gaming machine to the first probability of the first existing gaming machine.

45. The method of claim 42, which includes changing the third probability of the second existing gaming machine to the fourth probability of the second existing gaming machine.

46. The method of claim 42, which includes changing the fourth probability of the second existing gaming machine to the third probability of the second existing gaming machine.

47. The method of claim 42, which includes changing the first probability of the first existing gaming machine to the third probability of the second existing gaming machine.

48. The method of claim 42, which includes changing the first probability of the first existing gaming machine to the fourth probability of the second existing gaming machine.

49. The method of claim 42, which includes changing the second probability of the first existing gaming machine to the third probability of the second existing gaming machine.

50. The method of claim 42, which includes changing the second probability of the first existing gaming machine to the fourth probability of the second existing gaming machine.

51. The method of claim 42, which includes changing the third probability of the second existing gaming machine to the first probability of the first existing gaming machine.

52. The method of claim 42, which includes changing the third probability of the second existing gaming machine to the second probability of the first existing gaming machine.

53. The method of claim 42, which includes changing the fourth probability of the second existing gaming machine to the first probability of the first existing gaming machine.

54. The method of claim 42, which includes changing the fourth probability of the second existing gaming machine to the second probability of the first existing gaming machine.

55. The method of claim 42, which is provided through a data network.

56. The method of claim 55, wherein the data network is the internet.