Being the signal delay compensating device which compensates, the signal delay inside the device, the system and the methodological null

摘要

Has (2) a smart card having a contactless card function and NFC device (11), the smart cards and NFC these devices can be coupled through a protocol converter to each other, RFID communication system, the NFC device is transmitted to the RFID reader / writer response signal (RS) by modulating (ES) electromagnetic signal received by binding to antenna and receives electromagnetic signals from the RFID reader / writer (ES). The electromagnetic signal, comprising (FE, RE) the second characteristic component and the first characteristic component to define the start and end points of the signal pattern which is predefined, the second characteristic component, for the RFID reader / writer RFID communication system to trigger (FDT) round trip time to the predefined at the end of the period it must respond Te. I provide a signal delay compensation device having a (13) signal pattern shortening unit.