Electronic second spin slot machine
US5704835A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/3265
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic slot machine (10) which allows a player to completely respin one or more of the symbols displayed after the first spin in order to create, improve or even lose a winning combination. In its preferred form, the electronic slot machine of the present invention features a video monitor (30) with a plurality of symbol display boxes (32) arrayed in rows and columns. When the machine is activated through, for example, insertion of a valid coin and pressing of the "spin" button (22), one or more random numbers are generated in the slot machine's microprocessor (15) and compared to one or more reel strips encoded in computer memory (58) to determine which symbols are to be displayed in each of the symbol display boxes. If a suitable winning combination is not formed after this first spin, the player is given an opportunity to select one or more of the symbol display boxes for respin. After the new symbols are selected by the microprocessor and displayed in the respun boxes, the microprocessor compares the displayed symbols with a memorized list of winning combinations to determine if the game is a winner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.