Dynamic lottery ticket validation system
US5499816A · kind A · utility
76Cited by
6References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1993 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F2009/242
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A lottery ticket validation system reduces or eliminates spying on the status of tickets. The system uses a compression and encryption process to store its data compactly. The system is not a flag system. No particular bit in the memory corresponds to any given ticket. Thus, spying on a ticket's status by accessing the data base is extremely difficult. The amount of memory allocated to the system is altered dynamically during the lifetime of a game depending on how many tickets have been validated. In this way, memory requirements are kept-low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.