Device, system and method for compensating signal delays in an RFID communication system
US8203430B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2007 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | May 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10297
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An RFID communication system comprises an NFC device (11) and a smart card (2) with contactless card functionality, wherein the NFC device (11) and the smart card (2) are couplable to each other via a protocol converter (7), wherein the NFC device (11) is coupled to an antenna (3) to receive electromagnetic signals (ES) from an RFID reader/writer and to transmit response signals (RS) to the RFID reader/writer by modulating received electromagnetic signals (ES). The electromagnetic signals (ES) contain first and second characteristic components (FE, RE) which define the begin and the end of a predefined signal pattern (PA), wherein the second characteristic component triggers a predefined response delay time (FDT) at the expiration of which the RFID communication system has to respond to the RFID reader/writer. A device (12) for compensating signal delays is provided that comprises signal pattern shortening means (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.