05879234 is referenced by 41 patents and cites 31 patents.

The present invention relates to security system for a gaming apparatus and method for its operation. It further relates to a gaming apparatus incorporating an electronic security system. The gaming apparatus includes one or more physical displays that rotate about at least one axis. These displays are physically associated with a mechanism that controls the odds of the reel stopping at any particular reel position in such a manner that the probability of stopping at least one position differs from the probability of stopping at least one other position. The security system provides a safeguard against unauthorized alteration of the machine parameter that could effect its outcome. The present invention is particularly appropriate for application in slot machines.

Title
Security system for reel type slot machine with physical mapping to control the win odds
Application Number
8/942064
Publication Number
5879234
Application Date
October 1, 1997
Publication Date
March 9, 1999
Inventor
Antoni Mengual
Barcelona
ES
Agent
McDonnell Boehnen Hulbert & Berghoff
Assignee
Universal de Desarrollos Electronicos
ES
IPC
G07F 17/34
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