Slot machine game and system with improved jackpot feature

CAFC
  • US 7,056,215 B1
  • Filed: 07/08/1998
  • Issued: 06/06/2006
  • Est. Priority Date: 07/08/1997
  • Status: Expired due to Term
First Claim
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1. In a network of gaming machines, each of said gaming machines having a user interface activatable by a player to affect game display, each of said gaming machines being capable of accepting different wager amounts made by the player, a method of randomly awarding one progressive prize from a plurality of progressive prizes using a second game to select said one progressive prize, a display of said second game being triggered upon an occurrence of a random trigger condition having a probability of occurrence related to the amount of the wager, comprising:

  • making a wager at a particular gaming machine in the network of gaming machines;

    initiating a first main game at said particular gaming machine;

    causing a second game trigger condition to occur as a result of said first main game being initiated, said second game trigger condition occurring randomly and having a probability of occurrence dependent on the amount of the wager made at said particular gaming machine, said step of causing the second game trigger condition including;

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

    (2) allotting a plurality of numbers from the predetermined range of numbers in proportion to the amount of the wager made at said particular gaming machine, said step of allotting including allotting one number for each unit of currency of the amount wagered; and

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

    triggering a second game to appear at said particular gaming machine in response to said occurrence of said second game trigger condition, said second game appearing after completion of said first main game;

    randomly selecting said one progressive prize from said plurality of progressive prizes that has been won;

    displaying said second game to the player at said particular gaming machine in response to said triggering;

    activating said user interface at said particular gaming machine by said player during said displaying of said second game to affect the display of said second game;

    identifying to the player said one progressive prize from said plurality of progressive prizes that has been won; and

    awarding said one progressive prize from said plurality of progressive prizes that has been won.

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