Electromagnetic field generation device for a transponder
US7046146B2 · kind B2 · utility
6Cited by
94References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2001 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jan 12, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07767
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for generating an electromagnetic field by a first oscillating circuit excited by a high-frequency signal, including, at a distance from the first oscillating circuit, a second passive, unloaded and coreless oscillating circuit, forming an element for concentrating the magnetic flux intended to be intercepted by a transponder by a third oscillating circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.