发明名称 |
Device, system and method for compensating signal delays in an RFID communication system |
摘要 |
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). |
申请公布号 |
US8203430(B2) |
申请公布日期 |
2012.06.19 |
申请号 |
US20070445052 |
申请日期 |
2007.09.27 |
申请人 |
BREITFUSS KLEMENS;THUERINGER PETER;NXP B.V. |
发明人 |
BREITFUSS KLEMENS;THUERINGER PETER |
分类号 |
H04Q5/22;G08B1/00;G08B23/00;G08C19/16;H04B1/44 |
主分类号 |
H04Q5/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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