Data carrier with at least two demodulation stages having different sensitivities for modulated carrier signals with different modulation intensities
US6442215B1 · kind B1 · utility
2Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data carrier receives at least two carrier signals which are modulated in respect of the same signal parameter but with different modulation intensities. The data carrier has at least two demodulation stages, each of which having a sensitivity adapted to a modulation intensity used for a modulated carrier signal. The data carrier further has priority means capable of granting priority each time to one demodulation stage in such a manner that a demodulated carrier signal reaches signal processing means only from that modulation stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.