Slot machine with random number generation
US4573681A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1984 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | Apr 3, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/3244
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A slot machine is provided which has a winning probability table for storing a relation between a group and random numbers, the group being one of a plurality of groups made up by classifying prize-winning symbol combinations. The range of random numbers is properly fixed so that the winning probability is determined. Prior to the start of a game, one of the random numbers is sampled from a plurality of random numbers. The decisions on whether there is a win or not, and on which group the sampled random number belongs to if there is a win, are made with reference to the winning probability table. A hit request signal is generated for the latter decision. The hits are of different sizes, that is to say that different hits pay different numbers of wins. The larger the hit, the fewer random numbers correspond to it. The stopping series of symbols is controlled in accordance with the hit request signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.