Invention Grant
US08717145B2 RFID portal system with RFID tags having various read ranges
有权
具有RFID标签的RFID门户系统具有各种读取范围
- Patent Title: RFID portal system with RFID tags having various read ranges
- Patent Title (中): 具有RFID标签的RFID门户系统具有各种读取范围
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Application No.: US12546758Application Date: 2009-08-25
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Publication No.: US08717145B2Publication Date: 2014-05-06
- Inventor: Wing Kei Ho , Mark Alexis
- Applicant: Wing Kei Ho , Mark Alexis
- Applicant Address: CH Neuhausen am Rheinfall
- Assignee: Tyco Fire & Security Services GmbH
- Current Assignee: Tyco Fire & Security Services GmbH
- Current Assignee Address: CH Neuhausen am Rheinfall
- Agency: Christopher & Weisberg, P.A.
- Agent Alan M. Weisberg
- Main IPC: H04Q5/22
- IPC: H04Q5/22 ; H04Q1/00 ; G06K7/01

Abstract:
A system and method selectively reads radio frequency identification (“RFID”) tags within an RFID interrogation zone. A portion of the RFID tags have a first operating range and a portion of the RFID tags have a second operating range that is different from the first operating range. Each RFID tag is programmed with an identifier associated with the operating range of the RFID tag. A first interrogation signal is transmitted which has sufficient power to activate RFID tags that are located within the RFID interrogation zone and have the first operating range. A response signal is received from each RFID tag capable of receiving the first interrogation signal. Each response signal indicates the identifier of the associated RFID tag. Each RFID tag that has an identifier associated with the first operating range is selected.
Public/Granted literature
- US20110050400A1 RFID PORTAL SYSTEM WITH RFID TAGS HAVING VARIOUS READ RANGES Public/Granted day:2011-03-03
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