Method, system and computer program product for ranging RFID tags

Ville Viikari (Inventor), Pekka Pursula (Inventor)

Research output: PatentPatent


The invention relates to a method for ranging a radio frequency tag, comprising measuring the modulated backscattering response of the tag at a plurality of frequencies using reader and determining the dispersive properties of the tag from the amplitude of the measured backscattering response. Further, the method comprises determining a position parameter of the tag from the measured modulated backscattering response and the determined dispersive properties of the tag.

Patent family as of 16.9.2021
DE602011043169 D1 20171221 DE201160043169T 20110408      
EP2556387 A1 20130213 EP20110765143 20110408      
EP2556387 A4 20140226 EP20110765143 20110408      
EP2556387 B1 20171108 EP20110765143 20110408      
FI122310 B 20111130 FI20100005366 20100409      
FI20105366 A 20111010 FI20100005366 20100409      
FI20105366 A0 20100409 FI20100005366 20100409      
US2013038428 AA 20130214 US20110639104 20110408      
US9244162 BB 20160126 US20110639104 20110408      
WO11124768 A1 20111013 WO2011FI50306 20110408

Link to current patent family on right 

Original languageEnglish
Patent numberEP2556387
IPCG01S 13/ 75 A I
Priority date8/04/11
Publication statusPublished - 13 Feb 2013
MoE publication typeH1 Granted patent


Dive into the research topics of 'Method, system and computer program product for ranging RFID tags'. Together they form a unique fingerprint.

Cite this