Contactless integrated circuit having NFC and UHF operating modes
US8914061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2012 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07767
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A contactless integrated circuit includes modulation and demodulation circuits configured to connect to an HF antenna circuit to emit and receive HF signals by inductive coupling in a reader mode, modulation and demodulation circuits configured to connect to a UHF antenna to emit and receive UHF signals by electric coupling in a reader mode, a data processing circuit connected to the modulation and demodulation circuits, and configured to provide data to be emitted to the modulation circuits, and to process received signals, transmitted by the demodulation circuits, the demodulation circuits including a common demodulation circuit to equally process signals received by the UHF and HF antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.