Progressive jackpot gaming system linking gaming machines with different hit frequencies and denominations

• US 5,116,055 A
• Filed: 07/02/1991
• Issued: 05/26/1992
• Est. Priority Date: 07/02/1991
• Status: Expired due to Term

• Current Assignee: Multimedia Games Incorporated
• Original Assignee: Mikohn Gaming Corporation (International Game Technology)
• Inventors: Tracy, Daniel A.
• Primary Examiner(s): Layno, Benjamin
• Application Number:
  US07/725,001
• Time in Patent Office: 329 Days
• Field of Search: 273/138 A, 273/193 R
• US Class Current: 463/27
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3211 Display means
• CPC Class Codes: G07F 5/18 specially adapted for controlling several coin-freed apparatus from one place
• CPC Class Codes: G07F 9/002 Vending machines being part of a centrally controlled network of vending machines

Abstract

A progressive gaming system in which the gaming machines linked to the system have different play characteristics, e.g. different Denominations and Hit Frequencies, and wherein the system is further adapted such that the dollars contributed to the progressive jackpot for a machine per win on that machine is approximately equal for the different machines.

Claims

1. A progressive jackpot system comprising:

a plurality of gaming machines, each gaming machine being able to buy-into the progressive jackpot and each having one or more different play characteristics; and

means responsive to each of said gaming machines for determining the progressive jackpot value based upon the play at each of said gaming machines, said determination being such that the $s To JP of each gaming machine per win of the progressive jackpot at each gaming machine is approximately equal for the different machines.

2. A progressive jackpot system in accordance with claim 1 wherein:

said one or more different play characteristics include a different Denomination and a different Hit Frequency.

3. A progressive jackpot system in accordance with claim 2 wherein:

the $s Bet To Win for the progressive jackpot for each gaming machine is higher for gaming machines of lower Denomination and higher Hit Frequency.

4. A progressive jackpot system in accordance with claim 2 wherein:

the $s Bet To Win for the progressive jackpot for each gaming machine is approximately equal for the different gaming machines.

5. A progressive jackpot system in accordance with claim 2 wherein:

the $s To JP of the gaming machines differ from one another by less than about 5%.

6. A progressive jackpot system in accordance with claim 5 wherein:

the $s To JP of the gaming machines differ from one another by less than about 1%.

7. A progressive jackpot system in accordance with claim 2 wherein:

said determining means uses preselected effective %s To JP for the play o the different machines to obtain approximate equality of said $s To JP for the different machines.

8. A progressive jackpot system in accordance with claim 7 wherein:

each gaming machine generates coin/pulse information based upon a preselected Coins/Pulse value;

and said determining means includes means for adjusting said coin/pulse information of each gaming machine in accordance with a further Coins/Pulse value for that gaming machine based upon the effective % To JP for that gaming machine.

9. A progressive system in accordance with claim 8 wherein:

said adjusting mean further adjusts the coin/pulse information of each gaming machine such that the coin/pulse information of the different gaming machines has a common protocol.

11. A method in accordance with claim 1 wherein:

said one or more different play characteristics include a different Denomination and a different Hit Frequency.

12. A method in accordance with claim 11 wherein:

the $s Bet T Win for the progressive jackpot for each gaming machine is higher for gaming machines of lower Denomination and higher Hit Frequency.

13. A method in accordance with claim 11 wherein:

the $s Bet To Win for the progressive jackpot for each gaming machine is approximately equal for the different gaming machines.

14. A method in accordance with claim 11 wherein:

the $s To JP of the gaming machines differ from one another by less than about 5%.

15. A method in accordance with claim 14 wherein:

the $s To JP of the gaming machines differ from one another by less than about 1%.

16. A method in accordance with claim 11 wherein:

said step of determining uses preselected effective %s To JP for the play on the different machines to obtain approximate equality of said $s To JP for the different machines.

17. A method in accordance with claim 16 wherein:

each gaming machine generates coin/pulse information based upon a preselected Coins/Pulse value;

and said determining step includes adjusting said coin/pulse information of each gaming machine in accordance with a further Coins/Pulse value for that gaming machine based upon the effective % To JP for that gaming machine.

18. A method in accordance with claim 17 wherein:

said adjusting step further adjusts the coin/pulse information of each gaming machine such that the coin/pulse information of the different gaming machines has a common protocol.

10. A method for providing a progressive jackpot comprising:

linking a plurality of gaming machines each of which is able to buy-into a progressive jackpot, each gaming machine having one or more different play characteristics; and

determining the progressive jackpot value based upon the play at each of said gaming machines, said determination being such that the $s To JP of each gaming machine per win of the progressive jackpot at each gaming machine is approximately equal for the different machines.