Document having an integrated contactless resonator electronic device
US8157179B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2006 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Apr 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07327
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A support (10) provided with at least first (12) and second (14) parts capable of displacing relative to one another along a selected axis of displacement (16), and a contactless electronic device (1) mounted in the first part (12) of the support and including an electronic microcircuit (3) and an antenna (2) electrically connected to the electronic microcircuit (3), and capable of being (electro)magnetically coupled with an external reading station (5), the electronic microcircuit (3) being capable of exchanging information with the outside. The second part (14) is provided with electromagnetic coupling attenuating elements, having a resonator circuit (7) coupled to the antenna (2), and situated in line with the antenna (2) when the first and second parts are essentially superimposed one above the other, and are capable of rendering the exchange of information with the outside inoperative or operative according to the distance between the first and second parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.