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US08212678B2 RFID system, gate arrangement with RFID system and method of detecting transponders 有权
RFID系统，带RFID系统的门装置和检测应答器的方法

  • Patent Title: RFID system, gate arrangement with RFID system and method of detecting transponders
  • Patent Title (中): RFID系统，带RFID系统的门装置和检测应答器的方法
  • Application No.: US11815766
    Application Date: 2006-02-01
  • Publication No.: US08212678B2
    Publication Date: 2012-07-03
  • Inventor: Christian Scherabon
  • Applicant: Christian Scherabon
  • Applicant Address: NL Eindhoven
  • Assignee: NXP B.V.
  • Current Assignee: NXP B.V.
  • Current Assignee Address: NL Eindhoven
  • Priority: EP05100833 20050207
  • International Application: PCT/IB2006/050340 WO 20060201
  • International Announcement: WO2006/082560 WO 20060810
  • Main IPC: G01S13/75
  • IPC: G01S13/75 ;  G08B13/00
RFID system, gate arrangement with RFID system and method of detecting transponders
Abstract:
With an RFID system for communicating between reading units (R1, R2) and transponders (T1, T2) in at least two different scan areas (S1, S2), wherein at least one reading unit (R1, R2) and at least one antenna (A1-A4, B1-B4) communicating with the reading unit are allocated to each scan area (S1, S2) for the radiation of electromagnetic signals (EA1-EA4, EB1-EB4) in the scan area (S1, S2), the antennas (A1-A4, B1-B4) are designed in such a way that at least one antenna (A1, A3) of a scan area (S1) has a different polarization and/or a different polarization rotation direction relative to at least one antenna (B2, B4) of another scan area (S2).
Abstract(Chinese):

使用用于在至少两个不同扫描区域（S1，S2）中的读取单元（R1，R2）和应答器（T1，T2）之间通信的RFID系统，其中至少一个读取单元（R1，R2）和至少一个天线 与扫描区域（S1，S2）中的电磁信号（EA1-EA4，EB1-EB4）的辐射分配给每个扫描区域（S1，S2）的与读取单元通信的（A1-A4，B1-B4） 天线（A1-A4，B1-B4）被设计成使得扫描区域（S1）的至少一个天线（A1，A3）相对于至少具有不同的极化和/或不同的偏振旋转方向 另一扫描区域（S2）的一个天线（B2，B4）。

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