Electronic gaming device utilizing a random number generator for selecting the reel stop positions

• US 4,448,419 A
• Filed: 02/24/1982
• Issued: 05/15/1984
• Est. Priority Date: 02/24/1982
• Status: Expired due to Term

• Current Assignee: International Game Technology
• Original Assignee: Inge S. Telnaes
• Inventors: Telnaes, Inge S.
• Primary Examiner(s): Pinkham, Richard C.
• Assistant Examiner(s): Stoll, Mary Ann
• Application Number:
  US06/352,048
• Time in Patent Office: 811 Days
• Field of Search: 273/138 A, 273/143 R, 273/237, 273/143 C, 273/143 D, 273/143 E, 364/717, 364/412, 364/410
• US Class Current: 463/21
• 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 machine of the type utilizing rotating reels (16) which carry on the periphery a plurality of indicia, a brake (19) to stop the reels at a selected position and a random number generator for selecting the reel stopping position. Numbers are assigned to the reel stopping positions and entered into the random number generator (41) with each number being entered one or more times to control the payout odds of each particular stopping position being selected thereby enabling any odds to be set without changing the physical characteristics of the machine.

Claims

1. A game apparatus, comprising:

a reel mounted for rotation about an axis through a predetermined number of radial positions;

means to start rotation of said reel about said axis;

indicia fixed to said reel to indicate the angular rotational position of said reel;

means for assigning a plurality of numbers representing said angular positions of said reel, said plurality of numbers exceeding said predetermined number of radial positions such that some rotational positions are represented by a plurality of numbers;

means for randomly selecting one of said plurality of assigned numbers; and

means for stopping said reel at the angular position represented by said selected number.

2. A game apparatus as defined in claim 1 including a multiplicity of reels mounted for rotation.

3. A game apparatus as defined in claim 1 wherein some angular rotational positions only have one number representing that position.

4. A game apparatus as defined in claim 1 wherein said means for randomly selecting is a random number generator.

5. A game apparatus as defined in claim 4 wherein said means to start rotation of said reel is a lever.

6. A game apparatus as defined in claim 1 including a plurality of reels and said means for stopping stops said reels in a predetermined sequence.

7. A game apparatus as defined in claim 6 wherein said means for randomly selecting one of said assigned numbers does so for each reel.

8. A game apparatus, comprising:

a plurality of reels mounted for rotation about an axis;

indicia fixed to said reel peripheries to identify each of a randomly predetermined number of rotational positions through which said reels rotate;

means to stop each said reel at any selected one of said positions;

a random number generator for selecting one number from a plurality of numbers each representing one of said different angular rotational positions, said plurality of numbers exceeding the number of rotational positions of said reel such that a plurality of numbers represents some of the reel positions; and

means to set said reels into rotation and to energize said random number generator.

9. The method of controlling the win odds on a game apparatus having at least one reel rotatable through a plurality of positions and stoppable at any one of said plurality of positions with the positions having differing rewards, said method comprising the steps of:

assigning to each position at least one of a plurality of numbers;

entering said plurality of numbers in a random number generator;

starting said random number generator and reel and stopping said reel at the number selected by said random number generator; and

assigning a different quantity of numbers to each position to obtain the win odds desired.

10. The method of controlling the win odds on a game apparatus wherein a plurality of indicia are displayed and the reward is based on which indicia is selected, said method comprising the steps of:

assigning a plurality of numbers to most indicia and assigning at least one number to all indicia;

entering said numbers into a random number generator;

operating said random number generator to select one of said numbers;

displaying the indicia represented by said number; and

selecting the quantity of numbers to be assigned to each indicia responsive to the total quantity of numbers entered into said random number generator to make the win odds on each indicia a desired value.