Communication terminal for transceiving two frequencies using a common one turn antenna
US6911876B2 · kind B2 · utility
4Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Aug 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a terminal for communication with data supports which function in a non-contact manner, comprising a transreceiver circuit with two resonant circuits with antenna and condenser for the emitting of two radio frequency fields of different carrier frequencies, whereby the common antenna (A) for both resonant circuits comprises a winding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.