Non-contact data carrier
US6600219B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2002 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07784
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-contact data carrier device has an upper layer pattern and a lower layer pattern having an antenna coil part made of wire pattern laid spirally and capacitor patterns. The upper and lower layer patterns are disposed on a surface and a back of a dielectric layer, respectively, in such a manner that the external forms of the respective antenna coil parts accord with each other so that a resonance circuit is formed. The non-contact data carrier device is provided with a portion of wire pattern of the antenna coil part which has the shape according to the external form of coil of data carrier chip. Data carrier chip is mounted on one of the portions of densely formed wire pattern in such a manner that a part of the shape of coil of data carrier chip conforms to the portion of densely formed wire pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.