REEL-TYPE SLOT MACHINE UTILIZING RANDOM NUMBER GENERATOR FOR SELECTING GAME SYMBOLS

摘要

A reel-type slot machine (20) includes a micro processor driven game control circuit for randomly determining three game symbols (23-25) to be displayed as a result as a game result. Three reel assemblies (26-28) each include symbol-bearing reel driven by a stepper motor (40) for displaying one of the three symbols. A random number generator generates a random number within a predetermined range of numbers for application to a lookup table wherein a game result consisting of three symbols is selected. Each different game result is identified with a particular subset of random numbers within the total range of random numbers. The size of the subset determines the probability for a game result to occur. After a game result is selected, the reels are driven by the stepper motor (40) to display the selected game symbols. The stepper motor may ramp up or ramp down for increased stepping accuracy.