Method, system and computer program product for ranging RFID tags

Ville Viikari (Inventor), Pekka Pursula (Inventor)

Research output: Patent

Abstract

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.

Original languageEnglish
Patent numberUS2013038428
IPCG06K 7/ 01 A I
Priority date08/04/2011
Publication statusPublished - 14 Feb 2013
MoE publication typeH1 Granted patent

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