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Device, system and method for compensating signal delays in an RFID communication system

机译:用于在rfid通信系统中补偿信号延迟的装置,系统和方法

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).
机译:RFID通信系统包括NFC设备( 11 )和具有非接触卡功能的智能卡( 2 ),其中NFC设备( 11 )和智能卡( 2 )可通过协议转换器( 7 )相互耦合,其中NFC设备( 11 )为耦合到天线( 3 )以从RFID读取器/写入器接收电磁信号(ES),并通过调制接收到的电磁信号(ES)将响应信号(RS)发送到RFID读取器/写入器。电磁信号(ES)包含第一和第二特征分量(FE,RE),它们定义预定义信号模式(PA)的开始和结束,其中第二特征分量在到期时触发预定义的响应延迟时间(FDT)其中,RFID通信系统必须响应RFID读取器/写入器。提供了一种用于补偿信号延迟的设备( 12 ),该设备包括信号模式缩短装置( 13 )。

著录项

  • 公开/公告号US8203430B2

    专利类型

  • 公开/公告日2012-06-19

    原文格式PDF

  • 申请/专利权人 KLEMENS BREITFUSS;PETER THUERINGER;

    申请/专利号US20070445052

  • 发明设计人 KLEMENS BREITFUSS;PETER THUERINGER;

    申请日2007-09-27

  • 分类号H04Q5/22;G08C19/16;G08B1/00;G08B23/00;H04B1/44;

  • 国家 US

  • 入库时间 2022-08-21 17:29:36

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