Gaming apparatus with bi-directional reels

• US 5,251,898 A
• Filed: 08/26/1991
• Issued: 10/12/1993
• Est. Priority Date: 08/26/1991
• Status: Expired due to Term

• Current Assignee: Bally Gaming Incorporated (Scientific Games Corporation)
• Original Assignee: Bally Gaming International Incorporated (Scientific Games Corporation)
• Inventors: Dickenson, Robert M., Heidel, Raymond
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US07/749,845
• Time in Patent Office: 778 Days
• Field of Search: 273/142 R, 273/142 B, 273/142 H, 273/142 HA, 273/143 R, 273/138 A
• US Class Current: 273/143.00R
• CPC Class Codes: G07F 17/34 depending on the stopping of moving members in a mechanical slot machine, e.g. "fruit" machines

Abstract

A gaming apparatus with bi-directional, rotatable symbol bearing reels is disclosed. The gaming apparatus includes a microprocessor which generates a direction signal to control the rotation of each of the reels via a reel control mechanism. The reel control mechanism employs stepper motors or the like to rotate each of the reels in either a clockwise or counterclockwise direction about an axis, depending on value of the direction signal. In some cases, the microprocessor generates the direction signal in accordance with a random event so that the reels rotate randomly in different directions.

Claims

1. A gaming apparatus, comprising:

a plurality or rotatable, symbol bearing reels;

means for generating a random event; and

means for selectively and independently rotating each of said reels in a clockwise or a counterclockwise direction in accordance with the outcome of said random event.

2. A gaming apparatus according to claim 1, wherein said random event is the value of a random number generated prior to game play.

3. A gaming apparatus having a plurality of symbol bearing reels mounted for rotation about an axis comprising:

first rotation means for rotating at least one of the reels in a first direction;

second rotation means for rotating at least one of the reels in a second direction; and

selection means for randomly selectively engaging at least one of the reels with said first rotation means, and engaging at least one other of the reels with said second rotation means.

4. A gaming apparatus having a plurality of symbol bearing reels mounted for rotation about an axis comprising:

generation means for generating a plurality of signals which indicate direction, one of each of said signals corresponding to at least one of the reels; and

rotation means responsive to said signals for rotating each of the reels in the direction indicated by that one of said signals corresponding to the reel.

5. The gaming apparatus according to claim 4 wherein said generation means generates each of said signals according to the outcome of a random event.

6. The gaming apparatus according to claim 5 wherein said random event is the value of a random number.

7. A gaming apparatus having a plurality of symbol bearing reels mounted for rotation about an axis comprising:

means for generating a random binary signal having a plurality of bits, wherein each one of said bits corresponds to one of the reels; and

rotation means responsive to said binary signal for rotating each of the reels in a first direction in response to the reel'"'"'s corresponding bit having a first value, and in a second direction in response to said corresponding bit having a second value.

8. The apparatus according to claim 7 wherein said first direction is clockwise, said second direction is counterclockwise, said first bit value is low, and said second bit value is high.

9. A gaming apparatus having a plurality of symbol bearing reels mounted for rotation about an axis, comprising:

means for randomly generating a plurality of binary signals, each of said binary signals comprising a plurality of bits, each of said bits corresponding to one of the reels;

selection means for selecting one of said plurality of binary signals which has bits that are not all equal, and for selecting a predetermined one of said plurality of binary signals if all of said binary signals have bits that are all equal; and

motor means responsive to said selection means for rotating each of the reels in a first direction in response to the corresponding bit in said selected binary signal having a first predetermined logic level, and in a second direction in response to the corresponding bit in said selected binary signal having a second predetermined logic level.

10. In a gaming apparatus with symbol bearing rotatable reels mounted on an axis for rotation, a method for rotating the reels, comprising the steps of:

(a) generating a first plurality of binary signals;

(b) assigning each of the reels to one of the first plurality of binary signals; and

(c) rotating each of the reels in a first direction if its assigned binary signal is at a first predetermined logic level, and in a second direction if its assigned binary signal is in a second predetermined logic level.

11. The method according to claim 10 wherein said first plurality of binary signals is randomly generated.

12. The method according to claim 10 wherein further comprising the following step, which are performed between steps (a) and (b):

comparing each of the first plurality of binary signals; and

if each of the first plurality of binary signals are equal, generating a second plurality of N binary signals, and replacing up to N binary signals of said first plurality with said second plurality of binary signals.

13. A gaming apparatus, comprising:

means for generating a random event;

reel display means for displaying a plurality of rotating sets of symbols; and

control means for selectively and independently rotating each of said rotating sets in a clockwise or a counterclockwise direction in accordance with said predetermined random event.

14. The gaming apparatus of claim 13, wherein said reel display means includes a plurality of rotatable reels, each reel bearing one of said plurality of sets of symbols.