Transactional item with non-parallel magnetic elements
US5834748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 1996 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | May 17, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F1/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Transactional items such as currency, credit cards, identification cards and the like can be provided with enhanced difficulty to forge or counterfeit by the inclusion of magnetic elements within the transactional item. The signal strength, period, amplitude and/or alignment of the magnetic field may be read as coded information by a magnetic reading head. The encoding of this information can be made increasingly difficult to imitate or forge by varying parameters within these (and other) mechanically readable inscriptions. Filaments coated with magnetic particles are particularly useful magnetic elements for inclusion in transactional items because of their ability to be physically aligned, extend across significant dimensions of the transactional item, and their ready inclusion into manufacturing processes for the transactional items.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.