Antiforgery security system
US5988500A · kind A · utility
78Cited by
27References
49Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1996 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Aug 6, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F1/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Elongated magnetic elements can be inserted into items to provide readable magnetic patterns which provide reproducible or unique signal patterns to identify or authenticate the items. Magnetic fibers may be distributed within items or magnetic strips to provide reproducible patterns when read. The patterns are stable because of the relatively large size of the magnetic elements as compared to conventional patterns of particles in recordable media. Oriented patterns of filaments may also be inserted into transactional items such as credit cards, checks and the like to provide identification (antiforgery) security to the item.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.