Transponder communication station provided with a transmission coil configuration with three transmission coils
US6219530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Dec 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/45
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication station (1) for contactless communication with at least one transponder is provided with a transmission coil configuration (2) with an active, first transmission coil circuit (3) which includes a first transmission coil (4) and with a passive, second transmission coil circuit (7) which includes a second transmission coil (8), and additionally with an active, third transmission coil circuit (11) which includes a third transmission coil (12); in a preferred embodiment a coupling coil (15) is coupled to the second transmission coil (8), first receiving means (32) being connected to the first transmission coil circuit (3) and to the third transmission coil circuit (11) whereas second receiving means (37) are connected to the coupling coil (15), both receiving means (32, 37) delivering received data (RDA) which can be applied to data evaluation means (19).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.