Multiple tier random number generator

Details Multiple tier random number generator Multiple tier random number generator

1990-02-08

1992-04-07

Coven, Edward M.

Amusement devices: games

Chance devices

Electric or magnetic

273143R, A63S 504

Patent

active

051021340

ABSTRACT:
A slot machine is provided in which the symbols or indicia to be displayed are selected by using a random number generating technique to generate a random number for each display position, the random number being selected from a first range of numbers corresponding to the number of display possiblilities for that position. A two step random number selection technique is used wherein the first step comprises selecting a random number from a second range of numbers corresponding to the number of display possibilities for that display position less one, and the second step, which is only invoked in the event that a predetermined one of the numbers in the second range is selected, comprises selecting between that predetermined number and the number in the first range which is excluded from the second range. Accordingly, the probability of occurrence for two of the possible results for the display position is different to that for the remainder of the possible results.

REFERENCES:
patent: 3918716 (1973-07-01), Nonaka et al.
patent: 4448419 (1984-05-01), Telnaes
patent: 4492379 (1985-01-01), Okada
patent: 4527798 (1985-07-01), Siekierski et al.
patent: 4573681 (1986-03-01), Okada
patent: 4657256 (1987-04-01), Okada
patent: 4679143 (1987-07-01), Hagiwara
patent: 4711451 (1986-07-01), Pajak et al.
patent: 4772023 (1986-03-01), Okada
patent: 4858932 (1989-08-01), Keane

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