Contactless data transmission system and method for contactless data transmission
US6836208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2001 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Oct 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A contactless data transmission system having a transponder and a write/read station, between which data can be exchanged by a HF signal. The transponder includes a receiver unit having a receiving interface for accepting the HF signal and having an output terminal providing a data signal formed from the HF signal. The receiver unit has means for receiving and processing at least two differently modulated and/or encoded HF signals. The transponder also includes a processing unit having a first input terminal that is connected to the output terminal of the receiver unit. The transponder also includes a detection unit for providing a control signal dependent on the performance of the received HF signal. The receiver unit and/or the processing unit can be controlled or driven dependent on the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.