NFC card for handheld device
US8811894B2 · kind B2 · utility
22Cited by
11References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07769
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An NFC card includes an antenna circuit including an antenna coil having at least one magnetic axis, and at least one integrated circuit linked to the antenna circuit. The magnetic axis of the antenna coil is substantially parallel to at least one side of the card, and the card further includes at least one electrically conductive screen extending near the antenna coil, which does not cross the magnetic axis. The card does not include any magnetically permeable material between the at least one conductive screen and the antenna coil. Embodiments of the invention are applicable in particular to SIM-NFC card and SD-NFC cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.