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RFID system for allowing access to remotely positioned RFID tags

  • US 7,606,530 B1
  • Filed: 03/11/2006
  • Issued: 10/20/2009
  • Est. Priority Date: 03/11/2006
  • Status: Active Grant
First Claim
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1. A radio frequency identification (RFID) system for allowing access to at least one remotely positioned target RFID tag, comprising:

  • a) an RFID repeater receiver located outside of the operable range of a target RFID tag; and

    ,b) at least one RFID repeater positionable within an operable range of the target RFID tag, said RFID repeater for retransmitting an original inquiry from said RFID repeater receiver to the target RFID tag and for retransmitting a response from the target RFID tag to said RFID repeater receiver,wherein said at least one RFID repeater, comprises;

    a) at least one repeater receiver side repeater, comprisingi) a repeater receiver side paired transmit/receive antenna (RRSPTA);

    ii) a repeater receiver side converter for receiving an original inquiry from said RRSPTA and converting said original inquiry to a digital signal; and

    ,iii) a repeater receiver side controller in operative association with said repeater receiver side converter for managing and organizing said original inquiry, subsequent inquiries and responses; and

    ,b) at least one tag side repeater, comprising;

    i) a tag side paired transmit/receive antenna (TSPTA);

    ii) a tag side converter for receiving said original converted digital signal and converting it to an original converted analog signal for transmission by said TSPTA; and

    ,iii) a tag side controller in operative association with said tag side converter for managing and organizing said original inquiry, subsequent inquiries and responses,wherein said tag side converter converts responses received from said TSPTA and provides a digital signal for transmission by said RRSPTA.

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