Gambling machine with display means for the display of symbols

• US 5,702,302 A
• Filed: 09/21/1995
• Issued: 12/30/1997
• Est. Priority Date: 09/23/1994
• Status: Expired due to Term

• Current Assignee: GTECH Germany GmbH
• Original Assignee: Atronic Casino Technology Distribution GmbH
• Inventors: Gauselmann, Michael
• Primary Examiner(s): MANUEL, GEORGE C
• Application Number:
  US08/531,500
• Time in Patent Office: 831 Days
• Field of Search: 463/16, 463/17, 463/18, 463/19, 463/20, 463/21
• US Class Current: 463/20
• CPC Class Codes: G07F 17/3244 Payment aspects of a gaming system, e.g. payment schemes, setting payout ratio, bonus or consolation prizes

Abstract

The stopped rotating bodies of coin-operated gambling machines display a symbol combination which decides a win or non-win situation. The stop positions of the rotating bodies are determined with a random number generator. A random number generator is provided, which allows, without large expenditures, to adapt quickly the respective number of symbols to be displayed and the respective display frequency. A result output region is coordinated to each symbol. The symbol sequence is determined for the respective result output region with a pseudo-random number. The pseudo-random number is compared with a predetermined number from the respective result output region and in case of a numerical coincidence between pseudo-random number and predetermined number, a symbol of a rotating reel stop position and coordinated to the result output region, is displayed.

Claims

1. A method of operating a gambling machine comprising the steps:

initiating a game;

determining a certain game stop position of a displayed rotating reel;

determining a pseudo-random number with a pseudo-random number generating means for the certain game stop position;

comparing the pseudo-random number with a predetermined number within a range of pseudo-random numbers generatable for the possible game stop position;

increasing the certain game stop position by a step where the pseudo-random number does not numerically coincide with the predetermined number and determining another pseudo-random number and repeating the above steps following such determination;

displaying the symbol associated with the game stop position when the pseudo-random number numerically coincides with the predetermined number and paying out a winning amount when coordinated to the symbol displayed.

2. The method according to claim 1, further comprising

determining upon initiating a game a first displayed rotating reel and performing the recited procedure for this displayed rotating reel;

determining the presence of a last displayed rotating reel upon displaying the symbol associated with the game stop position;

transferring operation to a displayed rotating reel next in sequence if the thereto preceding rotating reel was the last displayed rotating reel, and determining a possible game stop position for the displayed rotating reel next in sequence and performing the steps recited above following to such determination of a possible game stop position.

3. The method according to claim 1, wherein the predetermined number is associated with the value "0".

4. The method according to claim 1, wherein the range of pseudo-random numbers of a result output region is different for each game stop position.

5. The method according to claim 1, further comprising displaying the symbol on display means;

indicating a win or non-win situation with the symbol displayed;

employing a microcomputer for sequential control of above operational steps.

6. The method according to claim 1, further comprising

actuating the gambling machine by manually contacting buttons located on the gambling machine.

7. The method according to claim 1, wherein the displayed rotating reel is provided by a rotating reel body forming part of a gambling machine.

8. An entertainment machine comprising a display means for displaying symbols, where the symbols indicate a win or non-win situation;

a control unit with a microprocessor for sequential control of operation, wherein the symbol to be displayed is determined by a random number generator, wherein a result output region is coordinated to each symbol, and wherein a pseudo-random number is determined in symbol sequence with the pseudo-random number generator from within a respective result output region until the determined pseudo-random number numerically coincides with a predetermined number from the respective result output region, and wherein the symbol coordinated to the result output region is displayed with the display means when a numerical coincidence is present.