Chip card having an adjustable demodulation unit
US8159289B2 · kind B2 · utility
0Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention shows a contactless chip card comprising a controllable demodulation unit for demodulating an amplitude-modulated carrier signal, a measuring unit for determining a degree of modulation of the modulated carrier signal, and a control unit for controlling the demodulation unit on the basis of the determined degree of modulation of the carrier signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.