Contactless data carrier with current demodulation
US7756223B2 · kind B2 · utility
6Cited by
10References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2005 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jul 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data carrier including demodulating circuitry for detecting a data signal carried by a received electromagnetic wave. The demodulator produces a signal derived from at least two additional signals. The first of the additional signals is dependent upon current received from the input to the data carrier and the second of the additional signals is dependent on current fluctuation relating to dynamic current loads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.