Random number generating techniques and gaming equipment employing such techniques

• US 4,527,798 A
• Filed: 02/23/1981
• Issued: 07/09/1985
• Est. Priority Date: 02/23/1981
• Status: Expired due to Fees

• Current Assignee: Video Turf Incorporated
• Original Assignee: Video Turf Incorporated
• Inventors: Sterling, Michael, Siekierski, Walter R.
• Primary Examiner(s): Pinkham, Richard C.
• Assistant Examiner(s): Picard, Leo P.
• Application Number:
  US06/237,361
• Time in Patent Office: 1,597 Days
• Field of Search: 273/138 A, 273/139, 273/86 R, 273/86 B, 235/92 GA, 235/92 TA, 235/92 TS, 235/375, 364/410-412, 364/717, 364/200, 364/900, 364/419, 364/801, 364/802, 364/806
• US Class Current: 463/17
• CPC Class Codes: G06F 7/588 Random number generators, i.e. based on natural stochastic processes
• CPC Class Codes: G07C 15/006 electronically
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3202 Hardware aspects of a gaming system, e.g. components, construction, architecture thereof

Abstract

A random number generator and a gaming machine employing such random number generator are set forth in accordance with preferred embodiments of the present invention. The random number generator disclosed employs a white noise source to clock a counting arrangement whose maximum count exceeds the largest random number desired. A variable counter, clocked at a fixed rate, is loaded with random numbers obtained from the counting arrangement and each time the variable counter is counted down to a threshold state a new random number is read from the counting arrangement. Random numbers obtained in this mamner are then checked to ascertain their propriety and those which are accepted are then subjected to pseudo-random number regenerative techniques to further randomize the same. The resulting random numbers are then employed within a digitally controlled and operated gaming machine to select winning condition, the probabilities to be displayed during periods when wagers are accepted and otherwise to vary initial conditions associated with the gaming event prior to the actual occurrence thereof. The gaming event is then visually displayed in accordance with the winning conditions selected and any successful wagers are paid.

Claims

1. In a gaming device wherein the occurrence of a fortuitous event is accompanied by a display of odds associated with the probability of the occurrence of said fortuitous event and successful wagers as to the occurrence of said fortuitous event are paid in amounts related to said probability of said occurrence of said fortuitous event;

the improvement comprising;

means for generating random numbers;

means for storing a plurality of differing probability tables, each of said plurality of probability tables defining differing probabilities of occurrence of several events;

means responsive to a random number generated for selecting a stored probability table defined by said random number and displaying odds associated with the probability of occurrence of the several events set forth therein;

means responsive to another random number generated for selecting the occurrence of said fortuitous event from said several events; and

means responsive to a selecting of said occurrence of said fortuitous event and said stored probability tables selected for paying any successful wager made in accordance with odds associated with the probability of said fortuitous event present in said stored probability table selected.

2. In the gaming device according to claim 1 wherein each of said plurality of probability tables define the probability of occurrence of first and second fortuitous events of several events and said gaming device sets forth the occurrence of first, second and third fortuitous events, the improvement further comprising means responsive to a selecting of said stored probability table for calculating the probability of the occurrence of said third fortuitous event based upon the probability of occurrence of said first and second fortuitous events of several events for each of said several events and for displaying odds associated therewith.

3. A gaming device for accepting wagers based upon the occurrence of a fortuitous event comprising:

video display means;

video disk playback means for reproducing viedo information recorded as a series of frames, said video disk playback means being connected to said video display means and having recorded thereat video information corresponding to and depicting a plurality of events each of which may occur as said fortuitous event;

a random number generator means;

selecting means responsive to a random number generated by said random number generator means for selecting a particular one of said plurality of events as a next to occur fortuitous event; and

means responsive to a selecting a particular one of said plurality of events as a next to occur fortuitous event for applying a frame defining signal to said video disk playback means to cause said video disk playback means to playback and display on said video display means video information corresponding to and depicting said particular one of said plurality of events as a next to occur fortuitous event selected.